xserver: Branch 'master' - 38 commits
Keith Packard
keithp at kemper.freedesktop.org
Tue Dec 9 11:50:17 PST 2014
Xext/xcmisc.c | 1
Xext/xvdisp.c | 20 +++
Xi/chgdctl.c | 8 +
Xi/chgfctl.c | 2
Xi/sendexev.c | 3
Xi/xiallowev.c | 2
Xi/xichangecursor.c | 2
Xi/xichangehierarchy.c | 35 +++++
Xi/xigetclientpointer.c | 1
Xi/xigrabdev.c | 9 +
Xi/xipassivegrab.c | 12 +-
Xi/xiproperty.c | 14 +-
Xi/xiquerydevice.c | 1
Xi/xiquerypointer.c | 2
Xi/xiselectev.c | 8 +
Xi/xisetclientpointer.c | 3
Xi/xisetdevfocus.c | 4
Xi/xiwarppointer.c | 2
configure.ac | 1
dbe/dbe.c | 17 ++
dix/dispatch.c | 3
dix/region.c | 20 ++-
dri3/dri3_request.c | 6 +
glx/clientinfo.c | 20 ++-
glx/glxcmds.c | 85 ++++++++------
glx/glxcmdsswap.c | 4
glx/glxserver.h | 43 +++++++
glx/indirect_program.c | 2
glx/indirect_reqsize.c | 142 +++++++++++-------------
glx/indirect_reqsize.h | 181 +++++++++++++++++++------------
glx/indirect_texture_compression.c | 4
glx/indirect_util.c | 9 +
glx/rensize.c | 114 +++++++++++--------
glx/single2.c | 23 +++
glx/single2swap.c | 19 ++-
glx/singlepix.c | 60 ++++++----
glx/singlepixswap.c | 50 ++++++--
glx/swap_interval.c | 2
glx/unpack.h | 3
hw/xfree86/dri2/dri2ext.c | 3
include/dix.h | 7 +
include/regionstr.h | 10 +
os/access.c | 6 +
os/rpcauth.c | 4
present/present_request.c | 6 +
randr/rrsdispatch.c | 4
render/render.c | 20 ++-
test/Makefile.am | 2
test/misc.c | 37 ++++++
test/xi1/Makefile.am | 34 +++++
test/xi1/protocol-xchangedevicecontrol.c | 122 ++++++++++++++++++++
test/xi2/protocol-xigetclientpointer.c | 5
test/xi2/protocol-xipassivegrabdevice.c | 8 +
test/xi2/protocol-xiquerypointer.c | 4
test/xi2/protocol-xiwarppointer.c | 3
xfixes/select.c | 1
56 files changed, 898 insertions(+), 315 deletions(-)
New commits:
commit 6704bb0ed7a10dabe8ef3bb3adf8b8a7f29a78f0
Merge: 8aa23f2 1559a94
Author: Keith Packard <keithp at keithp.com>
Date: Tue Dec 9 11:47:11 2014 -0800
Merge remote-tracking branch 'alanc/master'
commit 1559a94395258fd73e369f1a2c98a44bfe21a486
Author: Keith Packard <keithp at keithp.com>
Date: Tue Dec 9 09:31:00 2014 -0800
dix: GetHosts bounds check using wrong pointer value [CVE-2014-8092 pt. 6]
GetHosts saves the pointer to allocated memory in *data, and then
wants to bounds-check writes to that region, but was mistakenly using
a bare 'data' instead of '*data'. Also, data is declared as void **,
so we need a cast to turn it into a byte pointer so we can actually do
pointer comparisons.
Signed-off-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/os/access.c b/os/access.c
index f393c8d..28f2d32 100644
--- a/os/access.c
+++ b/os/access.c
@@ -1308,7 +1308,7 @@ GetHosts(void **data, int *pnHosts, int *pLen, BOOL * pEnabled)
}
for (host = validhosts; host; host = host->next) {
len = host->len;
- if ((ptr + sizeof(xHostEntry) + len) > (data + n))
+ if ((ptr + sizeof(xHostEntry) + len) > ((unsigned char *) *data + n))
break;
((xHostEntry *) ptr)->family = host->family;
((xHostEntry *) ptr)->length = len;
commit 9802a0162f738de03585ca3f3b8a8266494f7d45
Author: Keith Packard <keithp at keithp.com>
Date: Tue Dec 9 09:30:59 2014 -0800
Missing parens in REQUEST_FIXED_SIZE macro [CVE-2014-8092 pt. 5]
The 'n' parameter must be surrounded by parens in both places to
prevent precedence from mis-computing things.
Signed-off-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/include/dix.h b/include/dix.h
index 21176a8..921156b 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -80,7 +80,7 @@ SOFTWARE.
#define REQUEST_FIXED_SIZE(req, n)\
if (((sizeof(req) >> 2) > client->req_len) || \
- ((n >> 2) >= client->req_len) || \
+ (((n) >> 2) >= client->req_len) || \
((((uint64_t) sizeof(req) + (n) + 3) >> 2) != (uint64_t) client->req_len)) \
return(BadLength)
commit 61b17c0f10307e25e51e30e6fb1d3e3127f82d86
Author: Keith Packard <keithp at keithp.com>
Date: Tue Dec 9 09:30:58 2014 -0800
glx: Can't mix declarations and code in X.org sources [CVE-2014-8098 pt. 9]
We're using compiler compatibility settings which generate warnings
when a variable is declared after the first statement.
Signed-off-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/clientinfo.c b/glx/clientinfo.c
index c5fef30..74ad919 100644
--- a/glx/clientinfo.c
+++ b/glx/clientinfo.c
@@ -36,13 +36,14 @@ set_client_info(__GLXclientState * cl, xGLXSetClientInfoARBReq * req,
ClientPtr client = cl->client;
char *gl_extensions;
char *glx_extensions;
+ int size;
REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
/* Verify that the size of the packet matches the size inferred from the
* sizes specified for the various fields.
*/
- int size = sz_xGLXSetClientInfoARBReq;
+ size = sz_xGLXSetClientInfoARBReq;
size = safe_add(size, safe_mul(req->numVersions, bytes_per_version));
size = safe_add(size, safe_pad(req->numGLExtensionBytes));
size = safe_add(size, safe_pad(req->numGLXExtensionBytes));
commit b20912c3d45cbbde3c443e6c3d9e189092fe65e1
Author: Keith Packard <keithp at keithp.com>
Date: Tue Dec 9 09:30:57 2014 -0800
dbe: Call to DDX SwapBuffers requires address of int, not unsigned int [CVE-2014-8097 pt. 2]
When the local types used to walk the DBE request were changed, this
changed the type of the parameter passed to the DDX SwapBuffers API,
but there wasn't a matching change in the API definition.
At this point, with the API frozen, I just stuck a new variable in
with the correct type. Because we've already bounds-checked nStuff to
be smaller than UINT32_MAX / sizeof(DbeSwapInfoRec), we know it will
fit in a signed int without overflow.
Signed-off-by: Keith Packard <keithp at keithp.com
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/dbe/dbe.c b/dbe/dbe.c
index df2ad5c..e5d928d 100644
--- a/dbe/dbe.c
+++ b/dbe/dbe.c
@@ -452,6 +452,7 @@ ProcDbeSwapBuffers(ClientPtr client)
int error;
unsigned int i, j;
unsigned int nStuff;
+ int nStuff_i; /* DDX API requires int for nStuff */
REQUEST_AT_LEAST_SIZE(xDbeSwapBuffersReq);
nStuff = stuff->n; /* use local variable for performance. */
@@ -527,9 +528,10 @@ ProcDbeSwapBuffers(ClientPtr client)
* could deal with cross-screen synchronization.
*/
- while (nStuff > 0) {
+ nStuff_i = nStuff;
+ while (nStuff_i > 0) {
pDbeScreenPriv = DBE_SCREEN_PRIV_FROM_WINDOW(swapInfo[0].pWindow);
- error = (*pDbeScreenPriv->SwapBuffers) (client, &nStuff, swapInfo);
+ error = (*pDbeScreenPriv->SwapBuffers) (client, &nStuff_i, swapInfo);
if (error != Success) {
free(swapInfo);
return error;
commit 7e7630bbb775573eea2a2335adb9d190c3e1e971
Author: Robert Morell <rmorell at nvidia.com>
Date: Wed Nov 12 18:51:43 2014 -0800
glx: Fix mask truncation in __glXGetAnswerBuffer [CVE-2014-8093 6/6]
On a system where sizeof(unsigned) != sizeof(intptr_t), the unary
bitwise not operation will result in a mask that clears all high bits
from temp_buf in the expression:
temp_buf = (temp_buf + mask) & ~mask;
Signed-off-by: Robert Morell <rmorell at nvidia.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/indirect_util.c b/glx/indirect_util.c
index de81491..9ba2815 100644
--- a/glx/indirect_util.c
+++ b/glx/indirect_util.c
@@ -73,7 +73,7 @@ __glXGetAnswerBuffer(__GLXclientState * cl, size_t required_size,
void *local_buffer, size_t local_size, unsigned alignment)
{
void *buffer = local_buffer;
- const unsigned mask = alignment - 1;
+ const intptr_t mask = alignment - 1;
if (local_size < required_size) {
size_t worst_case_size;
commit e883c170c15493ab3637c0a01890f5a7ca4e16a5
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:48 2014 -0500
glx: Pass remaining request length into ->varsize (v2) [CVE-2014-8098 8/8]
v2: Handle more multiplies in indirect_reqsize.c (Julien Cristau)
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index a7a5172..bd6cb8d 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -2067,7 +2067,8 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
if (entry.varsize) {
/* variable size command */
extra = (*entry.varsize) (pc + __GLX_RENDER_HDR_SIZE,
- client->swapped);
+ client->swapped,
+ left - __GLX_RENDER_HDR_SIZE);
if (extra < 0) {
return BadLength;
}
@@ -2144,6 +2145,7 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
if (cl->largeCmdRequestsSoFar == 0) {
__GLXrenderSizeData entry;
int extra = 0;
+ int left = (req->length << 2) - sz_xGLXRenderLargeReq;
size_t cmdlen;
int err;
@@ -2184,7 +2186,8 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
** will be in the 1st request, so it's okay to do this.
*/
extra = (*entry.varsize) (pc + __GLX_RENDER_LARGE_HDR_SIZE,
- client->swapped);
+ client->swapped,
+ left - __GLX_RENDER_LARGE_HDR_SIZE);
if (extra < 0) {
return BadLength;
}
diff --git a/glx/glxserver.h b/glx/glxserver.h
index 9482601..9088ec4 100644
--- a/glx/glxserver.h
+++ b/glx/glxserver.h
@@ -177,7 +177,7 @@ typedef int (*__GLXprocPtr) (__GLXclientState *, char *pc);
/*
* Tables for computing the size of each rendering command.
*/
-typedef int (*gl_proto_size_func) (const GLbyte *, Bool);
+typedef int (*gl_proto_size_func) (const GLbyte *, Bool, int);
typedef struct {
int bytes;
diff --git a/glx/indirect_reqsize.c b/glx/indirect_reqsize.c
index abd0766..020aae2 100644
--- a/glx/indirect_reqsize.c
+++ b/glx/indirect_reqsize.c
@@ -31,24 +31,22 @@
#include "indirect_size.h"
#include "indirect_reqsize.h"
-#define __GLX_PAD(x) (((x) + 3) & ~3)
-
#if defined(__CYGWIN__) || defined(__MINGW32__)
#undef HAVE_ALIAS
#endif
#ifdef HAVE_ALIAS
#define ALIAS2(from,to) \
- GLint __glX ## from ## ReqSize( const GLbyte * pc, Bool swap ) \
+ GLint __glX ## from ## ReqSize( const GLbyte * pc, Bool swap, int reqlen ) \
__attribute__ ((alias( # to )));
#define ALIAS(from,to) ALIAS2( from, __glX ## to ## ReqSize )
#else
#define ALIAS(from,to) \
- GLint __glX ## from ## ReqSize( const GLbyte * pc, Bool swap ) \
- { return __glX ## to ## ReqSize( pc, swap ); }
+ GLint __glX ## from ## ReqSize( const GLbyte * pc, Bool swap, int reqlen ) \
+ { return __glX ## to ## ReqSize( pc, swap, reqlen ); }
#endif
int
-__glXCallListsReqSize(const GLbyte * pc, Bool swap)
+__glXCallListsReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 0);
GLenum type = *(GLenum *) (pc + 4);
@@ -60,11 +58,11 @@ __glXCallListsReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glCallLists_size(type);
- return __GLX_PAD((compsize * n));
+ return safe_pad(safe_mul(compsize, n));
}
int
-__glXBitmapReqSize(const GLbyte * pc, Bool swap)
+__glXBitmapReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -88,7 +86,7 @@ __glXBitmapReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXFogfvReqSize(const GLbyte * pc, Bool swap)
+__glXFogfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 0);
GLsizei compsize;
@@ -98,11 +96,11 @@ __glXFogfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glFogfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXLightfvReqSize(const GLbyte * pc, Bool swap)
+__glXLightfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -112,11 +110,11 @@ __glXLightfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glLightfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXLightModelfvReqSize(const GLbyte * pc, Bool swap)
+__glXLightModelfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 0);
GLsizei compsize;
@@ -126,11 +124,11 @@ __glXLightModelfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glLightModelfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXMaterialfvReqSize(const GLbyte * pc, Bool swap)
+__glXMaterialfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -140,11 +138,11 @@ __glXMaterialfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glMaterialfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXPolygonStippleReqSize(const GLbyte * pc, Bool swap)
+__glXPolygonStippleReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -164,7 +162,7 @@ __glXPolygonStippleReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXTexParameterfvReqSize(const GLbyte * pc, Bool swap)
+__glXTexParameterfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -174,11 +172,11 @@ __glXTexParameterfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glTexParameterfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXTexImage1DReqSize(const GLbyte * pc, Bool swap)
+__glXTexImage1DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -206,7 +204,7 @@ __glXTexImage1DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXTexImage2DReqSize(const GLbyte * pc, Bool swap)
+__glXTexImage2DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -236,7 +234,7 @@ __glXTexImage2DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXTexEnvfvReqSize(const GLbyte * pc, Bool swap)
+__glXTexEnvfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -246,11 +244,11 @@ __glXTexEnvfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glTexEnvfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXTexGendvReqSize(const GLbyte * pc, Bool swap)
+__glXTexGendvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -260,11 +258,11 @@ __glXTexGendvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glTexGendv_size(pname);
- return __GLX_PAD((compsize * 8));
+ return safe_pad(safe_mul(compsize, 8));
}
int
-__glXTexGenfvReqSize(const GLbyte * pc, Bool swap)
+__glXTexGenfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -274,11 +272,11 @@ __glXTexGenfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glTexGenfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXPixelMapfvReqSize(const GLbyte * pc, Bool swap)
+__glXPixelMapfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei mapsize = *(GLsizei *) (pc + 4);
@@ -286,11 +284,11 @@ __glXPixelMapfvReqSize(const GLbyte * pc, Bool swap)
mapsize = bswap_32(mapsize);
}
- return __GLX_PAD((mapsize * 4));
+ return safe_pad(safe_mul(mapsize, 4));
}
int
-__glXPixelMapusvReqSize(const GLbyte * pc, Bool swap)
+__glXPixelMapusvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei mapsize = *(GLsizei *) (pc + 4);
@@ -298,11 +296,11 @@ __glXPixelMapusvReqSize(const GLbyte * pc, Bool swap)
mapsize = bswap_32(mapsize);
}
- return __GLX_PAD((mapsize * 2));
+ return safe_pad(safe_mul(mapsize, 2));
}
int
-__glXDrawPixelsReqSize(const GLbyte * pc, Bool swap)
+__glXDrawPixelsReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -330,7 +328,7 @@ __glXDrawPixelsReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXPrioritizeTexturesReqSize(const GLbyte * pc, Bool swap)
+__glXPrioritizeTexturesReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 0);
@@ -338,11 +336,11 @@ __glXPrioritizeTexturesReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 4) + (n * 4));
+ return safe_pad(safe_add(safe_mul(n, 4), safe_mul(n, 4)));
}
int
-__glXTexSubImage1DReqSize(const GLbyte * pc, Bool swap)
+__glXTexSubImage1DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -370,7 +368,7 @@ __glXTexSubImage1DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXTexSubImage2DReqSize(const GLbyte * pc, Bool swap)
+__glXTexSubImage2DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -400,7 +398,7 @@ __glXTexSubImage2DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXColorTableReqSize(const GLbyte * pc, Bool swap)
+__glXColorTableReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -428,7 +426,7 @@ __glXColorTableReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXColorTableParameterfvReqSize(const GLbyte * pc, Bool swap)
+__glXColorTableParameterfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -438,11 +436,11 @@ __glXColorTableParameterfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glColorTableParameterfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXColorSubTableReqSize(const GLbyte * pc, Bool swap)
+__glXColorSubTableReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -470,7 +468,7 @@ __glXColorSubTableReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXConvolutionFilter1DReqSize(const GLbyte * pc, Bool swap)
+__glXConvolutionFilter1DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -498,7 +496,7 @@ __glXConvolutionFilter1DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXConvolutionFilter2DReqSize(const GLbyte * pc, Bool swap)
+__glXConvolutionFilter2DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = 0;
@@ -528,7 +526,7 @@ __glXConvolutionFilter2DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXConvolutionParameterfvReqSize(const GLbyte * pc, Bool swap)
+__glXConvolutionParameterfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 4);
GLsizei compsize;
@@ -538,11 +536,11 @@ __glXConvolutionParameterfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glConvolutionParameterfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXTexImage3DReqSize(const GLbyte * pc, Bool swap)
+__glXTexImage3DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = *(GLint *) (pc + 8);
@@ -579,7 +577,7 @@ __glXTexImage3DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXTexSubImage3DReqSize(const GLbyte * pc, Bool swap)
+__glXTexSubImage3DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLint row_length = *(GLint *) (pc + 4);
GLint image_height = *(GLint *) (pc + 8);
@@ -613,7 +611,7 @@ __glXTexSubImage3DReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXCompressedTexImage1DReqSize(const GLbyte * pc, Bool swap)
+__glXCompressedTexImage1DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei imageSize = *(GLsizei *) (pc + 20);
@@ -621,11 +619,11 @@ __glXCompressedTexImage1DReqSize(const GLbyte * pc, Bool swap)
imageSize = bswap_32(imageSize);
}
- return __GLX_PAD(imageSize);
+ return safe_pad(imageSize);
}
int
-__glXCompressedTexImage2DReqSize(const GLbyte * pc, Bool swap)
+__glXCompressedTexImage2DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei imageSize = *(GLsizei *) (pc + 24);
@@ -633,11 +631,11 @@ __glXCompressedTexImage2DReqSize(const GLbyte * pc, Bool swap)
imageSize = bswap_32(imageSize);
}
- return __GLX_PAD(imageSize);
+ return safe_pad(imageSize);
}
int
-__glXCompressedTexImage3DReqSize(const GLbyte * pc, Bool swap)
+__glXCompressedTexImage3DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei imageSize = *(GLsizei *) (pc + 28);
@@ -645,11 +643,11 @@ __glXCompressedTexImage3DReqSize(const GLbyte * pc, Bool swap)
imageSize = bswap_32(imageSize);
}
- return __GLX_PAD(imageSize);
+ return safe_pad(imageSize);
}
int
-__glXCompressedTexSubImage3DReqSize(const GLbyte * pc, Bool swap)
+__glXCompressedTexSubImage3DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei imageSize = *(GLsizei *) (pc + 36);
@@ -657,11 +655,11 @@ __glXCompressedTexSubImage3DReqSize(const GLbyte * pc, Bool swap)
imageSize = bswap_32(imageSize);
}
- return __GLX_PAD(imageSize);
+ return safe_pad(imageSize);
}
int
-__glXPointParameterfvReqSize(const GLbyte * pc, Bool swap)
+__glXPointParameterfvReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum pname = *(GLenum *) (pc + 0);
GLsizei compsize;
@@ -671,11 +669,11 @@ __glXPointParameterfvReqSize(const GLbyte * pc, Bool swap)
}
compsize = __glPointParameterfv_size(pname);
- return __GLX_PAD((compsize * 4));
+ return safe_pad(safe_mul(compsize, 4));
}
int
-__glXDrawBuffersReqSize(const GLbyte * pc, Bool swap)
+__glXDrawBuffersReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 0);
@@ -683,11 +681,11 @@ __glXDrawBuffersReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 4));
+ return safe_pad(safe_mul(n, 4));
}
int
-__glXProgramStringARBReqSize(const GLbyte * pc, Bool swap)
+__glXProgramStringARBReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei len = *(GLsizei *) (pc + 8);
@@ -695,11 +693,11 @@ __glXProgramStringARBReqSize(const GLbyte * pc, Bool swap)
len = bswap_32(len);
}
- return __GLX_PAD(len);
+ return safe_pad(len);
}
int
-__glXVertexAttribs1dvNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs1dvNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -707,11 +705,11 @@ __glXVertexAttribs1dvNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 8));
+ return safe_pad(safe_mul(n, 8));
}
int
-__glXVertexAttribs2dvNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs2dvNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -719,11 +717,11 @@ __glXVertexAttribs2dvNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 16));
+ return safe_pad(safe_mul(n, 16));
}
int
-__glXVertexAttribs3dvNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs3dvNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -731,11 +729,11 @@ __glXVertexAttribs3dvNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 24));
+ return safe_pad(safe_mul(n, 24));
}
int
-__glXVertexAttribs3fvNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs3fvNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -743,11 +741,11 @@ __glXVertexAttribs3fvNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 12));
+ return safe_pad(safe_mul(n, 12));
}
int
-__glXVertexAttribs3svNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs3svNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -755,11 +753,11 @@ __glXVertexAttribs3svNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 6));
+ return safe_pad(safe_mul(n, 6));
}
int
-__glXVertexAttribs4dvNVReqSize(const GLbyte * pc, Bool swap)
+__glXVertexAttribs4dvNVReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLsizei n = *(GLsizei *) (pc + 4);
@@ -767,7 +765,7 @@ __glXVertexAttribs4dvNVReqSize(const GLbyte * pc, Bool swap)
n = bswap_32(n);
}
- return __GLX_PAD((n * 32));
+ return safe_pad(safe_mul(n, 32));
}
ALIAS(Fogiv, Fogfv)
diff --git a/glx/indirect_reqsize.h b/glx/indirect_reqsize.h
index 49d400c..632a85b 100644
--- a/glx/indirect_reqsize.h
+++ b/glx/indirect_reqsize.h
@@ -36,115 +36,156 @@
#define PURE
#endif
-extern PURE _X_HIDDEN int __glXCallListsReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXBitmapReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXFogfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXFogivReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXLightfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXLightivReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXLightModelfvReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXLightModelivReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXMaterialfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXMaterialivReqSize(const GLbyte * pc, Bool swap);
+extern PURE _X_HIDDEN int __glXCallListsReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXBitmapReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXFogfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXFogivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXLightfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXLightivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXLightModelfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXLightModelivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMaterialfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMaterialivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXPolygonStippleReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXTexParameterfvReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXTexParameterivReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXTexImage1DReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexImage2DReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexEnvfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexEnvivReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexGendvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexGenfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXTexGenivReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXMap1dReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXMap1fReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXMap2dReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXMap2fReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXPixelMapfvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXPixelMapuivReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXPixelMapusvReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXDrawPixelsReqSize(const GLbyte * pc, Bool swap);
-extern PURE _X_HIDDEN int __glXDrawArraysReqSize(const GLbyte * pc, Bool swap);
+ Bool swap, int reqlen);
+extern PURE _X_HIDDEN int __glXTexImage1DReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexImage2DReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexEnvfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexEnvivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexGendvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexGenfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXTexGenivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMap1dReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMap1fReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMap2dReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXMap2fReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXPixelMapfvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXPixelMapuivReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXPixelMapusvReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXDrawPixelsReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
+extern PURE _X_HIDDEN int __glXDrawArraysReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXPrioritizeTexturesReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXTexSubImage1DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXTexSubImage2DReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXColorTableReqSize(const GLbyte * pc, Bool swap);
+ Bool swap, int reqlen);
+extern PURE _X_HIDDEN int __glXColorTableReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXColorTableParameterfvReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXColorTableParameterivReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXColorSubTableReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXConvolutionFilter1DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXConvolutionFilter2DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXConvolutionParameterfvReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXConvolutionParameterivReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXSeparableFilter2DReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXTexImage3DReqSize(const GLbyte * pc, Bool swap);
+ Bool swap, int reqlen);
+extern PURE _X_HIDDEN int __glXTexImage3DReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXTexSubImage3DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexImage1DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexImage2DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexImage3DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexSubImage1DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexSubImage2DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXCompressedTexSubImage3DReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXPointParameterfvReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXPointParameterivReqSize(const GLbyte * pc,
- Bool swap);
-extern PURE _X_HIDDEN int __glXDrawBuffersReqSize(const GLbyte * pc, Bool swap);
+ Bool swap, int reqlen);
+extern PURE _X_HIDDEN int __glXDrawBuffersReqSize(const GLbyte * pc, Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXProgramStringARBReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXDeleteFramebuffersReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXDeleteRenderbuffersReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs1dvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs1fvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs1svNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs2dvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs2fvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs2svNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs3dvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs3fvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs3svNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs4dvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs4fvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs4svNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap, int reqlen);
extern PURE _X_HIDDEN int __glXVertexAttribs4ubvNVReqSize(const GLbyte * pc,
- Bool swap);
+ Bool swap,
+ int reqlen);
#undef PURE
diff --git a/glx/rensize.c b/glx/rensize.c
index d46334a..6bfe99b 100644
--- a/glx/rensize.c
+++ b/glx/rensize.c
@@ -44,7 +44,7 @@
((a & 0xff00U)<<8) | ((a & 0xffU)<<24))
int
-__glXMap1dReqSize(const GLbyte * pc, Bool swap)
+__glXMap1dReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum target;
GLint order;
@@ -61,7 +61,7 @@ __glXMap1dReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXMap1fReqSize(const GLbyte * pc, Bool swap)
+__glXMap1fReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum target;
GLint order;
@@ -86,7 +86,7 @@ Map2Size(int k, int majorOrder, int minorOrder)
}
int
-__glXMap2dReqSize(const GLbyte * pc, Bool swap)
+__glXMap2dReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum target;
GLint uorder, vorder;
@@ -103,7 +103,7 @@ __glXMap2dReqSize(const GLbyte * pc, Bool swap)
}
int
-__glXMap2fReqSize(const GLbyte * pc, Bool swap)
+__glXMap2fReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
GLenum target;
GLint uorder, vorder;
@@ -359,13 +359,14 @@ __glXTypeSize(GLenum enm)
}
int
-__glXDrawArraysReqSize(const GLbyte * pc, Bool swap)
+__glXDrawArraysReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
__GLXdispatchDrawArraysHeader *hdr = (__GLXdispatchDrawArraysHeader *) pc;
__GLXdispatchDrawArraysComponentHeader *compHeader;
GLint numVertexes = hdr->numVertexes;
GLint numComponents = hdr->numComponents;
GLint arrayElementSize = 0;
+ GLint x, size;
int i;
if (swap) {
@@ -374,6 +375,13 @@ __glXDrawArraysReqSize(const GLbyte * pc, Bool swap)
}
pc += sizeof(__GLXdispatchDrawArraysHeader);
+ reqlen -= sizeof(__GLXdispatchDrawArraysHeader);
+
+ size = safe_mul(sizeof(__GLXdispatchDrawArraysComponentHeader),
+ numComponents);
+ if (size < 0 || reqlen < 0 || reqlen < size)
+ return -1;
+
compHeader = (__GLXdispatchDrawArraysComponentHeader *) pc;
for (i = 0; i < numComponents; i++) {
@@ -417,17 +425,18 @@ __glXDrawArraysReqSize(const GLbyte * pc, Bool swap)
return -1;
}
- arrayElementSize += __GLX_PAD(numVals * __glXTypeSize(datatype));
+ x = safe_pad(safe_mul(numVals, __glXTypeSize(datatype)));
+ if ((arrayElementSize = safe_add(arrayElementSize, x)) < 0)
+ return -1;
pc += sizeof(__GLXdispatchDrawArraysComponentHeader);
}
- return ((numComponents * sizeof(__GLXdispatchDrawArraysComponentHeader)) +
- (numVertexes * arrayElementSize));
+ return safe_add(size, safe_mul(numVertexes, arrayElementSize));
}
int
-__glXSeparableFilter2DReqSize(const GLbyte * pc, Bool swap)
+__glXSeparableFilter2DReqSize(const GLbyte * pc, Bool swap, int reqlen)
{
__GLXdispatchConvolutionFilterHeader *hdr =
(__GLXdispatchConvolutionFilterHeader *) pc;
commit 984583a497c813df5827ae22483133e704fee79c
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:47 2014 -0500
glx: Length checking for non-generated single requests (v2) [CVE-2014-8098 7/8]
v2:
Fix single versus vendor-private length checking for ARB_imaging subset
extensions. (Julien Cristau)
v3:
Fix single versus vendor-private length checking for ARB_imaging subset
extensions. (Julien Cristau)
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Julien Cristau <jcristau at debian.org>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/indirect_texture_compression.c b/glx/indirect_texture_compression.c
index cda7656..1ebf7f3 100644
--- a/glx/indirect_texture_compression.c
+++ b/glx/indirect_texture_compression.c
@@ -43,6 +43,8 @@ __glXDisp_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
__GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
+
pc += __GLX_SINGLE_HDR_SIZE;
if (cx != NULL) {
const GLenum target = *(GLenum *) (pc + 0);
@@ -87,6 +89,8 @@ __glXDispSwap_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
__glXForceCurrent(cl, bswap_32(req->contextTag), &error);
ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
+
pc += __GLX_SINGLE_HDR_SIZE;
if (cx != NULL) {
const GLenum target = (GLenum) bswap_32(*(int *) (pc + 0));
diff --git a/glx/single2.c b/glx/single2.c
index 53b661d..a6ea614 100644
--- a/glx/single2.c
+++ b/glx/single2.c
@@ -45,11 +45,14 @@
int
__glXDisp_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
GLsizei size;
GLenum type;
__GLXcontext *cx;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -76,10 +79,13 @@ __glXDisp_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
int
__glXDisp_SelectBuffer(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
GLsizei size;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -104,7 +110,7 @@ __glXDisp_SelectBuffer(__GLXclientState * cl, GLbyte * pc)
int
__glXDisp_RenderMode(__GLXclientState * cl, GLbyte * pc)
{
- ClientPtr client;
+ ClientPtr client = cl->client;
xGLXRenderModeReply reply;
__GLXcontext *cx;
GLint nitems = 0, retBytes = 0, retval, newModeCheck;
@@ -112,6 +118,8 @@ __glXDisp_RenderMode(__GLXclientState * cl, GLbyte * pc)
GLenum newMode;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -188,7 +196,6 @@ __glXDisp_RenderMode(__GLXclientState * cl, GLbyte * pc)
** selection array, as per the API for glRenderMode itself.
*/
noChangeAllowed:;
- client = cl->client;
reply = (xGLXRenderModeReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
@@ -207,9 +214,12 @@ __glXDisp_RenderMode(__GLXclientState * cl, GLbyte * pc)
int
__glXDisp_Flush(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
int error;
+ REQUEST_SIZE_MATCH(xGLXSingleReq);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -223,10 +233,12 @@ __glXDisp_Flush(__GLXclientState * cl, GLbyte * pc)
int
__glXDisp_Finish(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
- ClientPtr client;
int error;
+ REQUEST_SIZE_MATCH(xGLXSingleReq);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -317,7 +329,7 @@ __glXcombine_strings(const char *cext_string, const char *sext_string)
int
DoGetString(__GLXclientState * cl, GLbyte * pc, GLboolean need_swap)
{
- ClientPtr client;
+ ClientPtr client = cl->client;
__GLXcontext *cx;
GLenum name;
const char *string;
@@ -327,6 +339,8 @@ DoGetString(__GLXclientState * cl, GLbyte * pc, GLboolean need_swap)
char *buf = NULL, *buf1 = NULL;
GLint length = 0;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
/* If the client has the opposite byte order, swap the contextTag and
* the name.
*/
@@ -343,7 +357,6 @@ DoGetString(__GLXclientState * cl, GLbyte * pc, GLboolean need_swap)
pc += __GLX_SINGLE_HDR_SIZE;
name = *(GLenum *) (pc + 0);
string = (const char *) glGetString(name);
- client = cl->client;
if (string == NULL)
string = "";
diff --git a/glx/single2swap.c b/glx/single2swap.c
index 764501f..5349069 100644
--- a/glx/single2swap.c
+++ b/glx/single2swap.c
@@ -41,6 +41,7 @@
int
__glXDispSwap_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
GLsizei size;
GLenum type;
@@ -48,6 +49,8 @@ __glXDispSwap_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
__GLXcontext *cx;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -77,12 +80,15 @@ __glXDispSwap_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_SelectBuffer(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
GLsizei size;
__GLX_DECLARE_SWAP_VARIABLES;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -109,7 +115,7 @@ __glXDispSwap_SelectBuffer(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_RenderMode(__GLXclientState * cl, GLbyte * pc)
{
- ClientPtr client;
+ ClientPtr client = cl->client;
__GLXcontext *cx;
xGLXRenderModeReply reply;
GLint nitems = 0, retBytes = 0, retval, newModeCheck;
@@ -120,6 +126,8 @@ __glXDispSwap_RenderMode(__GLXclientState * cl, GLbyte * pc)
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
int error;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -200,7 +208,6 @@ __glXDispSwap_RenderMode(__GLXclientState * cl, GLbyte * pc)
** selection array, as per the API for glRenderMode itself.
*/
noChangeAllowed:;
- client = cl->client;
reply = (xGLXRenderModeReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
@@ -224,11 +231,14 @@ __glXDispSwap_RenderMode(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_Flush(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_SIZE_MATCH(xGLXSingleReq);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -243,12 +253,14 @@ __glXDispSwap_Flush(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_Finish(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
__GLXcontext *cx;
- ClientPtr client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_SIZE_MATCH(xGLXSingleReq);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -260,7 +272,6 @@ __glXDispSwap_Finish(__GLXclientState * cl, GLbyte * pc)
cx->hasUnflushedCommands = GL_FALSE;
/* Send empty reply packet to indicate finish is finished */
- client = cl->client;
__GLX_BEGIN_REPLY(0);
__GLX_PUT_RETVAL(0);
__GLX_SWAP_REPLY_HEADER();
diff --git a/glx/singlepix.c b/glx/singlepix.c
index 8b6c261..54ed7fd 100644
--- a/glx/singlepix.c
+++ b/glx/singlepix.c
@@ -51,6 +51,8 @@ __glXDisp_ReadPixels(__GLXclientState * cl, GLbyte * pc)
int error;
char *answer, answerBuffer[200];
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 28);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -100,6 +102,8 @@ __glXDisp_GetTexImage(__GLXclientState * cl, GLbyte * pc)
char *answer, answerBuffer[200];
GLint width = 0, height = 0, depth = 1;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 20);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -157,6 +161,8 @@ __glXDisp_GetPolygonStipple(__GLXclientState * cl, GLbyte * pc)
GLubyte answerBuffer[200];
char *answer;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
@@ -217,15 +223,13 @@ GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
compsize2 = __glGetTexImage_size(target, 1, format, type, height, 1, 1);
- if (compsize < 0)
+ if ((compsize = safe_pad(compsize)) < 0)
return BadLength;
- if (compsize2 < 0)
+ if ((compsize2 = safe_pad(compsize2)) < 0)
return BadLength;
- compsize = __GLX_PAD(compsize);
- compsize2 = __GLX_PAD(compsize2);
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
- __GLX_GET_ANSWER_BUFFER(answer, cl, compsize + compsize2, 1);
+ __GLX_GET_ANSWER_BUFFER(answer, cl, safe_add(compsize, compsize2), 1);
__glXClearErrorOccured();
glGetSeparableFilter(*(GLenum *) (pc + 0), *(GLenum *) (pc + 4),
*(GLenum *) (pc + 8), answer, answer + compsize, NULL);
@@ -249,7 +253,8 @@ int
__glXDisp_GetSeparableFilter(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetSeparableFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -257,7 +262,8 @@ int
__glXDisp_GetSeparableFilterEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetSeparableFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -323,7 +329,8 @@ int
__glXDisp_GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetConvolutionFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -331,7 +338,8 @@ int
__glXDisp_GetConvolutionFilterEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetConvolutionFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -390,7 +398,8 @@ int
__glXDisp_GetHistogram(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetHistogram(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -398,7 +407,8 @@ int
__glXDisp_GetHistogramEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetHistogram(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -450,7 +460,8 @@ int
__glXDisp_GetMinmax(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetMinmax(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -458,7 +469,8 @@ int
__glXDisp_GetMinmaxEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetMinmax(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -517,7 +529,8 @@ int
__glXDisp_GetColorTable(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetColorTable(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -525,6 +538,7 @@ int
__glXDisp_GetColorTableSGI(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
-
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetColorTable(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
diff --git a/glx/singlepixswap.c b/glx/singlepixswap.c
index 8dc304f..9eff592 100644
--- a/glx/singlepixswap.c
+++ b/glx/singlepixswap.c
@@ -53,6 +53,8 @@ __glXDispSwap_ReadPixels(__GLXclientState * cl, GLbyte * pc)
int error;
char *answer, answerBuffer[200];
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 28);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -114,6 +116,8 @@ __glXDispSwap_GetTexImage(__GLXclientState * cl, GLbyte * pc)
char *answer, answerBuffer[200];
GLint width = 0, height = 0, depth = 1;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 20);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -184,6 +188,8 @@ __glXDispSwap_GetPolygonStipple(__GLXclientState * cl, GLbyte * pc)
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
+
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
@@ -251,15 +257,13 @@ GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
compsize2 = __glGetTexImage_size(target, 1, format, type, height, 1, 1);
- if (compsize < 0)
+ if ((compsize = safe_pad(compsize)) < 0)
return BadLength;
- if (compsize2 < 0)
+ if ((compsize2 = safe_pad(compsize2)) < 0)
return BadLength;
- compsize = __GLX_PAD(compsize);
- compsize2 = __GLX_PAD(compsize2);
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
- __GLX_GET_ANSWER_BUFFER(answer, cl, compsize + compsize2, 1);
+ __GLX_GET_ANSWER_BUFFER(answer, cl, safe_add(compsize, compsize2), 1);
__glXClearErrorOccured();
glGetSeparableFilter(*(GLenum *) (pc + 0), *(GLenum *) (pc + 4),
*(GLenum *) (pc + 8), answer, answer + compsize, NULL);
@@ -285,7 +289,9 @@ int
__glXDispSwap_GetSeparableFilter(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetSeparableFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -293,7 +299,9 @@ int
__glXDispSwap_GetSeparableFilterEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetSeparableFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -367,7 +375,9 @@ int
__glXDispSwap_GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetConvolutionFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -375,7 +385,9 @@ int
__glXDispSwap_GetConvolutionFilterEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetConvolutionFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -441,7 +453,9 @@ int
__glXDispSwap_GetHistogram(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetHistogram(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -449,7 +463,9 @@ int
__glXDispSwap_GetHistogramEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetHistogram(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -507,7 +523,9 @@ int
__glXDispSwap_GetMinmax(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetMinmax(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -515,7 +533,9 @@ int
__glXDispSwap_GetMinmaxEXT(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetMinmax(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
@@ -581,7 +601,9 @@ int
__glXDispSwap_GetColorTable(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
return GetColorTable(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
@@ -589,6 +611,8 @@ int
__glXDispSwap_GetColorTableSGI(__GLXclientState * cl, GLbyte * pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
+ ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
return GetColorTable(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
commit 44ba149f28ece93c2fbfc9cc980588de5322dd4b
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:46 2014 -0500
glx: Length-checking for non-generated vendor private requests [CVE-2014-8098 6/8]
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/indirect_program.c b/glx/indirect_program.c
index cda139e..5caee7b 100644
--- a/glx/indirect_program.c
+++ b/glx/indirect_program.c
@@ -56,6 +56,8 @@ DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte * pc,
__GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
ClientPtr client = cl->client;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateWithReplyReq, 8);
+
pc += __GLX_VENDPRIV_HDR_SIZE;
if (cx != NULL) {
GLenum target;
diff --git a/glx/swap_interval.c b/glx/swap_interval.c
index 17bc992..2320550 100644
--- a/glx/swap_interval.c
+++ b/glx/swap_interval.c
@@ -46,6 +46,8 @@ DoSwapInterval(__GLXclientState * cl, GLbyte * pc, int do_swap)
__GLXcontext *cx;
GLint interval;
+ REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 4);
+
cx = __glXLookupContextByTag(cl, tag);
if ((cx == NULL) || (cx->pGlxScreen == NULL)) {
commit afe177020d1fb776c6163f21eddc82cb185b95ca
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:45 2014 -0500
glx: Request length checks for SetClientInfoARB [CVE-2014-8098 5/8]
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/clientinfo.c b/glx/clientinfo.c
index 4aaa4c9..c5fef30 100644
--- a/glx/clientinfo.c
+++ b/glx/clientinfo.c
@@ -33,18 +33,21 @@ static int
set_client_info(__GLXclientState * cl, xGLXSetClientInfoARBReq * req,
unsigned bytes_per_version)
{
+ ClientPtr client = cl->client;
char *gl_extensions;
char *glx_extensions;
+ REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
+
/* Verify that the size of the packet matches the size inferred from the
* sizes specified for the various fields.
*/
- const unsigned expected_size = sz_xGLXSetClientInfoARBReq
- + (req->numVersions * bytes_per_version)
- + __GLX_PAD(req->numGLExtensionBytes)
- + __GLX_PAD(req->numGLXExtensionBytes);
+ int size = sz_xGLXSetClientInfoARBReq;
+ size = safe_add(size, safe_mul(req->numVersions, bytes_per_version));
+ size = safe_add(size, safe_pad(req->numGLExtensionBytes));
+ size = safe_add(size, safe_pad(req->numGLXExtensionBytes));
- if (req->length != (expected_size / 4))
+ if (size < 0 || req->length != (size / 4))
return BadLength;
/* Verify that the actual length of the GL extension string matches what's
@@ -80,8 +83,11 @@ __glXDisp_SetClientInfoARB(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_SetClientInfoARB(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
xGLXSetClientInfoARBReq *req = (xGLXSetClientInfoARBReq *) pc;
+ REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
+
req->length = bswap_16(req->length);
req->numVersions = bswap_32(req->numVersions);
req->numGLExtensionBytes = bswap_32(req->numGLExtensionBytes);
@@ -99,8 +105,11 @@ __glXDisp_SetClientInfo2ARB(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_SetClientInfo2ARB(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
xGLXSetClientInfoARBReq *req = (xGLXSetClientInfoARBReq *) pc;
+ REQUEST_AT_LEAST_SIZE(xGLXSetClientInfoARBReq);
+
req->length = bswap_16(req->length);
req->numVersions = bswap_32(req->numVersions);
req->numGLExtensionBytes = bswap_32(req->numGLExtensionBytes);
commit c91e4abc3b892f42802efa20fef7ada442c2d3f5
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:44 2014 -0500
glx: Top-level length checking for swapped VendorPrivate requests [CVE-2014-8098 4/8]
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxcmdsswap.c b/glx/glxcmdsswap.c
index 5d179f3..9ec1222 100644
--- a/glx/glxcmdsswap.c
+++ b/glx/glxcmdsswap.c
@@ -958,11 +958,13 @@ __glXDispSwap_RenderLarge(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_VendorPrivate(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
xGLXVendorPrivateReq *req;
GLint vendorcode;
__GLXdispatchVendorPrivProcPtr proc;
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq);
req = (xGLXVendorPrivateReq *) pc;
__GLX_SWAP_SHORT(&req->length);
@@ -985,11 +987,13 @@ __glXDispSwap_VendorPrivate(__GLXclientState * cl, GLbyte * pc)
int
__glXDispSwap_VendorPrivateWithReply(__GLXclientState * cl, GLbyte * pc)
{
+ ClientPtr client = cl->client;
xGLXVendorPrivateWithReplyReq *req;
GLint vendorcode;
__GLXdispatchVendorPrivProcPtr proc;
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateWithReplyReq);
req = (xGLXVendorPrivateWithReplyReq *) pc;
__GLX_SWAP_SHORT(&req->length);
commit a33a939e6abb255b14d8dbc85fcbd2c55b958bae
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:43 2014 -0500
glx: Length checking for RenderLarge requests (v2) [CVE-2014-8098 3/8]
This is a half-measure until we start passing request length into the
varsize function, but it's better than the nothing we had before.
v2: Verify that there's at least a large render header's worth of
dataBytes (Julien Cristau)
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index ddd9119..a7a5172 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -2109,6 +2109,8 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
__GLX_DECLARE_SWAP_VARIABLES;
+ REQUEST_AT_LEAST_SIZE(xGLXRenderLargeReq);
+
req = (xGLXRenderLargeReq *) pc;
if (client->swapped) {
__GLX_SWAP_SHORT(&req->length);
@@ -2124,12 +2126,14 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
__glXResetLargeCommandStatus(cl);
return error;
}
+ if (safe_pad(req->dataBytes) < 0)
+ return BadLength;
dataBytes = req->dataBytes;
/*
** Check the request length.
*/
- if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) {
+ if ((req->length << 2) != safe_pad(dataBytes) + sz_xGLXRenderLargeReq) {
client->errorValue = req->length;
/* Reset in case this isn't 1st request. */
__glXResetLargeCommandStatus(cl);
@@ -2139,7 +2143,7 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
if (cl->largeCmdRequestsSoFar == 0) {
__GLXrenderSizeData entry;
- int extra;
+ int extra = 0;
size_t cmdlen;
int err;
@@ -2152,13 +2156,17 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
return __glXError(GLXBadLargeRequest);
}
+ if (dataBytes < __GLX_RENDER_LARGE_HDR_SIZE)
+ return BadLength;
+
hdr = (__GLXrenderLargeHeader *) pc;
if (client->swapped) {
__GLX_SWAP_INT(&hdr->length);
__GLX_SWAP_INT(&hdr->opcode);
}
- cmdlen = hdr->length;
opcode = hdr->opcode;
+ if ((cmdlen = safe_pad(hdr->length)) < 0)
+ return BadLength;
/*
** Check for core opcodes and grab entry data.
@@ -2180,17 +2188,13 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
if (extra < 0) {
return BadLength;
}
- /* large command's header is 4 bytes longer, so add 4 */
- if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) {
- return BadLength;
- }
}
- else {
- /* constant size command */
- if (cmdlen != __GLX_PAD(entry.bytes + 4)) {
- return BadLength;
- }
+
+ /* the +4 is safe because we know entry.bytes is small */
+ if (cmdlen != safe_pad(safe_add(entry.bytes + 4, extra))) {
+ return BadLength;
}
+
/*
** Make enough space in the buffer, then copy the entire request.
*/
@@ -2217,6 +2221,7 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
** We are receiving subsequent (i.e. not the first) requests of a
** multi request command.
*/
+ int bytesSoFar; /* including this packet */
/*
** Check the request number and the total request count.
@@ -2235,11 +2240,18 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
/*
** Check that we didn't get too much data.
*/
- if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) {
+ if ((bytesSoFar = safe_add(cl->largeCmdBytesSoFar, dataBytes)) < 0) {
+ client->errorValue = dataBytes;
+ __glXResetLargeCommandStatus(cl);
+ return __glXError(GLXBadLargeRequest);
+ }
+
+ if (bytesSoFar > cl->largeCmdBytesTotal) {
client->errorValue = dataBytes;
__glXResetLargeCommandStatus(cl);
return __glXError(GLXBadLargeRequest);
}
+
memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes);
cl->largeCmdBytesSoFar += dataBytes;
cl->largeCmdRequestsSoFar++;
@@ -2251,17 +2263,16 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
** This is the last request; it must have enough bytes to complete
** the command.
*/
- /* NOTE: the two pad macros have been added below; they are needed
- ** because the client library pads the total byte count, but not
- ** the per-request byte counts. The Protocol Encoding says the
- ** total byte count should not be padded, so a proposal will be
- ** made to the ARB to relax the padding constraint on the total
- ** byte count, thus preserving backward compatibility. Meanwhile,
- ** the padding done below fixes a bug that did not allow
- ** large commands of odd sizes to be accepted by the server.
+ /* NOTE: the pad macro below is needed because the client library
+ ** pads the total byte count, but not the per-request byte counts.
+ ** The Protocol Encoding says the total byte count should not be
+ ** padded, so a proposal will be made to the ARB to relax the
+ ** padding constraint on the total byte count, thus preserving
+ ** backward compatibility. Meanwhile, the padding done below
+ ** fixes a bug that did not allow large commands of odd sizes to
+ ** be accepted by the server.
*/
- if (__GLX_PAD(cl->largeCmdBytesSoFar) !=
- __GLX_PAD(cl->largeCmdBytesTotal)) {
+ if (safe_pad(cl->largeCmdBytesSoFar) != cl->largeCmdBytesTotal) {
client->errorValue = dataBytes;
__glXResetLargeCommandStatus(cl);
return __glXError(GLXBadLargeRequest);
commit 698888e6671d54c7ae41e9d456f7f5483a3459d2
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:42 2014 -0500
glx: Integer overflow protection for non-generated render requests (v3) [CVE-2014-8093 5/6]
v2:
Fix constants in __glXMap2fReqSize (Michal Srb)
Validate w/h/d for proxy targets too (Keith Packard)
v3:
Fix Map[12]Size to correctly reject order == 0 (Julien Cristau)
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/rensize.c b/glx/rensize.c
index 9ff73c7..d46334a 100644
--- a/glx/rensize.c
+++ b/glx/rensize.c
@@ -43,19 +43,11 @@
(((a & 0xff000000U)>>24) | ((a & 0xff0000U)>>8) | \
((a & 0xff00U)<<8) | ((a & 0xffU)<<24))
-static int
-Map1Size(GLint k, GLint order)
-{
- if (order <= 0 || k < 0)
- return -1;
- return k * order;
-}
-
int
__glXMap1dReqSize(const GLbyte * pc, Bool swap)
{
GLenum target;
- GLint order, k;
+ GLint order;
target = *(GLenum *) (pc + 16);
order = *(GLint *) (pc + 20);
@@ -63,15 +55,16 @@ __glXMap1dReqSize(const GLbyte * pc, Bool swap)
target = SWAPL(target);
order = SWAPL(order);
}
- k = __glMap1d_size(target);
- return 8 * Map1Size(k, order);
+ if (order < 1)
+ return -1;
+ return safe_mul(8, safe_mul(__glMap1d_size(target), order));
}
int
__glXMap1fReqSize(const GLbyte * pc, Bool swap)
{
GLenum target;
- GLint order, k;
+ GLint order;
target = *(GLenum *) (pc + 0);
order = *(GLint *) (pc + 12);
@@ -79,23 +72,24 @@ __glXMap1fReqSize(const GLbyte * pc, Bool swap)
target = SWAPL(target);
order = SWAPL(order);
}
- k = __glMap1f_size(target);
- return 4 * Map1Size(k, order);
+ if (order < 1)
+ return -1;
+ return safe_mul(4, safe_mul(__glMap1f_size(target), order));
}
static int
Map2Size(int k, int majorOrder, int minorOrder)
{
- if (majorOrder <= 0 || minorOrder <= 0 || k < 0)
+ if (majorOrder < 1 || minorOrder < 1)
return -1;
- return k * majorOrder * minorOrder;
+ return safe_mul(k, safe_mul(majorOrder, minorOrder));
}
int
__glXMap2dReqSize(const GLbyte * pc, Bool swap)
{
GLenum target;
- GLint uorder, vorder, k;
+ GLint uorder, vorder;
target = *(GLenum *) (pc + 32);
uorder = *(GLint *) (pc + 36);
@@ -105,15 +99,14 @@ __glXMap2dReqSize(const GLbyte * pc, Bool swap)
uorder = SWAPL(uorder);
vorder = SWAPL(vorder);
}
- k = __glMap2d_size(target);
- return 8 * Map2Size(k, uorder, vorder);
+ return safe_mul(8, Map2Size(__glMap2d_size(target), uorder, vorder));
}
int
__glXMap2fReqSize(const GLbyte * pc, Bool swap)
{
GLenum target;
- GLint uorder, vorder, k;
+ GLint uorder, vorder;
target = *(GLenum *) (pc + 0);
uorder = *(GLint *) (pc + 12);
@@ -123,8 +116,7 @@ __glXMap2fReqSize(const GLbyte * pc, Bool swap)
uorder = SWAPL(uorder);
vorder = SWAPL(vorder);
}
- k = __glMap2f_size(target);
- return 4 * Map2Size(k, uorder, vorder);
+ return safe_mul(4, Map2Size(__glMap2f_size(target), uorder, vorder));
}
/**
@@ -175,14 +167,16 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
GLint bytesPerElement, elementsPerGroup, groupsPerRow;
GLint groupSize, rowSize, padding, imageSize;
+ if (w == 0 || h == 0 || d == 0)
+ return 0;
+
if (w < 0 || h < 0 || d < 0 ||
(type == GL_BITMAP &&
(format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX))) {
return -1;
}
- if (w == 0 || h == 0 || d == 0)
- return 0;
+ /* proxy targets have no data */
switch (target) {
case GL_PROXY_TEXTURE_1D:
case GL_PROXY_TEXTURE_2D:
@@ -199,6 +193,12 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
return 0;
}
+ /* real data has to have real sizes */
+ if (imageHeight < 0 || rowLength < 0 || skipImages < 0 || skipRows < 0)
+ return -1;
+ if (alignment != 1 && alignment != 2 && alignment != 4 && alignment != 8)
+ return -1;
+
if (type == GL_BITMAP) {
if (rowLength > 0) {
groupsPerRow = rowLength;
@@ -207,11 +207,14 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
groupsPerRow = w;
}
rowSize = bits_to_bytes(groupsPerRow);
+ if (rowSize < 0)
+ return -1;
padding = (rowSize % alignment);
if (padding) {
rowSize += alignment - padding;
}
- return ((h + skipRows) * rowSize);
+
+ return safe_mul(safe_add(h, skipRows), rowSize);
}
else {
switch (format) {
@@ -303,6 +306,7 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
default:
return -1;
}
+ /* known safe by the switches above, not checked */
groupSize = bytesPerElement * elementsPerGroup;
if (rowLength > 0) {
groupsPerRow = rowLength;
@@ -310,18 +314,21 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
else {
groupsPerRow = w;
}
- rowSize = groupsPerRow * groupSize;
+
+ if ((rowSize = safe_mul(groupsPerRow, groupSize)) < 0)
+ return -1;
padding = (rowSize % alignment);
if (padding) {
rowSize += alignment - padding;
}
- if (imageHeight > 0) {
- imageSize = (imageHeight + skipRows) * rowSize;
- }
- else {
- imageSize = (h + skipRows) * rowSize;
- }
- return ((d + skipImages) * imageSize);
+
+ if (imageHeight > 0)
+ h = imageHeight;
+ h = safe_add(h, skipRows);
+
+ imageSize = safe_mul(h, rowSize);
+
+ return safe_mul(safe_add(d, skipImages), imageSize);
}
}
@@ -445,9 +452,7 @@ __glXSeparableFilter2DReqSize(const GLbyte * pc, Bool swap)
/* XXX Should rowLength be used for either or both image? */
image1size = __glXImageSize(format, type, 0, w, 1, 1,
0, rowLength, 0, 0, alignment);
- image1size = __GLX_PAD(image1size);
image2size = __glXImageSize(format, type, 0, h, 1, 1,
0, rowLength, 0, 0, alignment);
- return image1size + image2size;
-
+ return safe_add(safe_pad(image1size), image2size);
}
commit be09e0c988ffdb0371293af49fb4ea8f49ed324a
Author: Julien Cristau <jcristau at debian.org>
Date: Mon Nov 10 12:13:41 2014 -0500
glx: Length checking for GLXRender requests (v2) [CVE-2014-8098 2/8]
v2:
Remove can't-happen comparison for cmdlen < 0 (Michal Srb)
Reviewed-by: Adam Jackson <ajax at redhat.com>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Julien Cristau <jcristau at debian.org>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index ea42e2a..ddd9119 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -2025,7 +2025,7 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
left = (req->length << 2) - sz_xGLXRenderReq;
while (left > 0) {
__GLXrenderSizeData entry;
- int extra;
+ int extra = 0;
__GLXdispatchRenderProcPtr proc;
int err;
@@ -2044,6 +2044,9 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
cmdlen = hdr->length;
opcode = hdr->opcode;
+ if (left < cmdlen)
+ return BadLength;
+
/*
** Check for core opcodes and grab entry data.
*/
@@ -2057,6 +2060,10 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
return __glXError(GLXBadRenderRequest);
}
+ if (cmdlen < entry.bytes) {
+ return BadLength;
+ }
+
if (entry.varsize) {
/* variable size command */
extra = (*entry.varsize) (pc + __GLX_RENDER_HDR_SIZE,
@@ -2064,17 +2071,9 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
if (extra < 0) {
return BadLength;
}
- if (cmdlen != __GLX_PAD(entry.bytes + extra)) {
- return BadLength;
- }
}
- else {
- /* constant size command */
- if (cmdlen != __GLX_PAD(entry.bytes)) {
- return BadLength;
- }
- }
- if (left < cmdlen) {
+
+ if (cmdlen != safe_pad(safe_add(entry.bytes, extra))) {
return BadLength;
}
commit 2a5cbc17fc72185bf0fa06fef26d1f782de72595
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:40 2014 -0500
glx: Add safe_{add,mul,pad} (v3) [CVE-2014-8093 4/6]
These are paranoid about integer overflow, and will return -1 if their
operation would overflow a (signed) integer or if either argument is
negative.
Note that RenderLarge requests are sized with a uint32_t so in principle
this could be sketchy there, but dix limits bigreqs to 128M so you
shouldn't ever notice, and honestly if you're sending more than 2G of
rendering commands you're already doing something very wrong.
v2: Use INT_MAX for consistency with the rest of the server (jcristau)
v3: Reject negative arguments (anholt)
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxserver.h b/glx/glxserver.h
index a324b29..9482601 100644
--- a/glx/glxserver.h
+++ b/glx/glxserver.h
@@ -228,6 +228,47 @@ extern void glxSwapQueryServerStringReply(ClientPtr client,
* Routines for computing the size of variably-sized rendering commands.
*/
+static _X_INLINE int
+safe_add(int a, int b)
+{
+ if (a < 0 || b < 0)
+ return -1;
+
+ if (INT_MAX - a < b)
+ return -1;
+
+ return a + b;
+}
+
+static _X_INLINE int
+safe_mul(int a, int b)
+{
+ if (a < 0 || b < 0)
+ return -1;
+
+ if (a == 0 || b == 0)
+ return 0;
+
+ if (a > INT_MAX / b)
+ return -1;
+
+ return a * b;
+}
+
+static _X_INLINE int
+safe_pad(int a)
+{
+ int ret;
+
+ if (a < 0)
+ return -1;
+
+ if ((ret = safe_add(a, 3)) < 0)
+ return -1;
+
+ return ret & (GLuint)~3;
+}
+
extern int __glXTypeSize(GLenum enm);
extern int __glXImageSize(GLenum format, GLenum type,
GLenum target, GLsizei w, GLsizei h, GLsizei d,
commit 13d36923e0ddb077f4854e354c3d5c80590b5d9d
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:39 2014 -0500
glx: Fix image size computation for EXT_texture_integer [CVE-2014-8098 1/8]
Without this we'd reject the request with BadLength. Note that some old
versions of Mesa had a bug in the same place, and would _send_ zero
bytes of image data; these will now be rejected, correctly.
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/rensize.c b/glx/rensize.c
index ba22d10..9ff73c7 100644
--- a/glx/rensize.c
+++ b/glx/rensize.c
@@ -224,6 +224,11 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
case GL_ALPHA:
case GL_LUMINANCE:
case GL_INTENSITY:
+ case GL_RED_INTEGER_EXT:
+ case GL_GREEN_INTEGER_EXT:
+ case GL_BLUE_INTEGER_EXT:
+ case GL_ALPHA_INTEGER_EXT:
+ case GL_LUMINANCE_INTEGER_EXT:
elementsPerGroup = 1;
break;
case GL_422_EXT:
@@ -234,14 +239,19 @@ __glXImageSize(GLenum format, GLenum type, GLenum target,
case GL_DEPTH_STENCIL_MESA:
case GL_YCBCR_MESA:
case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
elementsPerGroup = 2;
break;
case GL_RGB:
case GL_BGR:
+ case GL_RGB_INTEGER_EXT:
+ case GL_BGR_INTEGER_EXT:
elementsPerGroup = 3;
break;
case GL_RGBA:
case GL_BGRA:
+ case GL_RGBA_INTEGER_EXT:
+ case GL_BGRA_INTEGER_EXT:
case GL_ABGR_EXT:
elementsPerGroup = 4;
break;
commit 717a1b37767b41e14859e5022ae9e679152821a9
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:38 2014 -0500
glx: Additional paranoia in __glXGetAnswerBuffer / __GLX_GET_ANSWER_BUFFER (v2) [CVE-2014-8093 3/6]
If the computed reply size is negative, something went wrong, treat it
as an error.
v2: Be more careful about size_t being unsigned (Matthieu Herrb)
v3: SIZE_MAX not SIZE_T_MAX (Alan Coopersmith)
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/indirect_util.c b/glx/indirect_util.c
index 926e57c..de81491 100644
--- a/glx/indirect_util.c
+++ b/glx/indirect_util.c
@@ -76,9 +76,14 @@ __glXGetAnswerBuffer(__GLXclientState * cl, size_t required_size,
const unsigned mask = alignment - 1;
if (local_size < required_size) {
- const size_t worst_case_size = required_size + alignment;
+ size_t worst_case_size;
intptr_t temp_buf;
+ if (required_size < SIZE_MAX - alignment)
+ worst_case_size = required_size + alignment;
+ else
+ return NULL;
+
if (cl->returnBufSize < worst_case_size) {
void *temp = realloc(cl->returnBuf, worst_case_size);
diff --git a/glx/unpack.h b/glx/unpack.h
index 52fba74..2b1ebcf 100644
--- a/glx/unpack.h
+++ b/glx/unpack.h
@@ -83,7 +83,8 @@ extern xGLXSingleReply __glXReply;
** pointer.
*/
#define __GLX_GET_ANSWER_BUFFER(res,cl,size,align) \
- if ((size) > sizeof(answerBuffer)) { \
+ if (size < 0) return BadLength; \
+ else if ((size) > sizeof(answerBuffer)) { \
int bump; \
if ((cl)->returnBufSize < (size)+(align)) { \
(cl)->returnBuf = (GLbyte*)realloc((cl)->returnBuf, \
commit ab2ba9338aa5e85b4487bc7fbe69985c76483e01
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:37 2014 -0500
glx: Be more strict about rejecting invalid image sizes [CVE-2014-8093 2/6]
Before this we'd just clamp the image size to 0, which was just
hideously stupid; if the parameters were such that they'd overflow an
integer, you'd allocate a small buffer, then pass huge values into (say)
ReadPixels, and now you're scribbling over arbitrary server memory.
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/singlepix.c b/glx/singlepix.c
index 506fdaa..8b6c261 100644
--- a/glx/singlepix.c
+++ b/glx/singlepix.c
@@ -65,7 +65,7 @@ __glXDisp_ReadPixels(__GLXclientState * cl, GLbyte * pc)
lsbFirst = *(GLboolean *) (pc + 25);
compsize = __glReadPixels_size(format, type, width, height);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
glPixelStorei(GL_PACK_LSB_FIRST, lsbFirst);
@@ -124,7 +124,7 @@ __glXDisp_GetTexImage(__GLXclientState * cl, GLbyte * pc)
compsize =
__glGetTexImage_size(target, level, format, type, width, height, depth);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -218,9 +218,9 @@ GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize2 = __glGetTexImage_size(target, 1, format, type, height, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
if (compsize2 < 0)
- compsize2 = 0;
+ return BadLength;
compsize = __GLX_PAD(compsize);
compsize2 = __GLX_PAD(compsize2);
@@ -296,7 +296,7 @@ GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, height, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -365,7 +365,7 @@ GetHistogram(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -426,7 +426,7 @@ GetMinmax(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize = __glGetTexImage_size(target, 1, format, type, 2, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -491,7 +491,7 @@ GetColorTable(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
diff --git a/glx/singlepixswap.c b/glx/singlepixswap.c
index 8469101..8dc304f 100644
--- a/glx/singlepixswap.c
+++ b/glx/singlepixswap.c
@@ -75,7 +75,7 @@ __glXDispSwap_ReadPixels(__GLXclientState * cl, GLbyte * pc)
lsbFirst = *(GLboolean *) (pc + 25);
compsize = __glReadPixels_size(format, type, width, height);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
glPixelStorei(GL_PACK_LSB_FIRST, lsbFirst);
@@ -144,7 +144,7 @@ __glXDispSwap_GetTexImage(__GLXclientState * cl, GLbyte * pc)
compsize =
__glGetTexImage_size(target, level, format, type, width, height, depth);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -252,9 +252,9 @@ GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize2 = __glGetTexImage_size(target, 1, format, type, height, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
if (compsize2 < 0)
- compsize2 = 0;
+ return BadLength;
compsize = __GLX_PAD(compsize);
compsize2 = __GLX_PAD(compsize2);
@@ -338,7 +338,7 @@ GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, height, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -415,7 +415,7 @@ GetHistogram(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -483,7 +483,7 @@ GetMinmax(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
compsize = __glGetTexImage_size(target, 1, format, type, 2, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
@@ -554,7 +554,7 @@ GetColorTable(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
*/
compsize = __glGetTexImage_size(target, 1, format, type, width, 1, 1);
if (compsize < 0)
- compsize = 0;
+ return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
commit 23fe7718bb171e71db2d1a30505c2ca2988799d9
Author: Adam Jackson <ajax at redhat.com>
Date: Mon Nov 10 12:13:36 2014 -0500
glx: Be more paranoid about variable-length requests [CVE-2014-8093 1/6]
If the size computation routine returns -1 we should just reject the
request outright. Clamping it to zero could give an attacker the
opportunity to also mangle cmdlen in such a way that the subsequent
length check passes, and the request would get executed, thus passing
data we wanted to reject to the renderer.
Reviewed-by: Keith Packard <keithp at keithp.com>
Reviewed-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Michal Srb <msrb at suse.com>
Reviewed-by: Andy Ritger <aritger at nvidia.com>
Signed-off-by: Adam Jackson <ajax at redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index 009fd9b..ea42e2a 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -2062,7 +2062,7 @@ __glXDisp_Render(__GLXclientState * cl, GLbyte * pc)
extra = (*entry.varsize) (pc + __GLX_RENDER_HDR_SIZE,
client->swapped);
if (extra < 0) {
- extra = 0;
+ return BadLength;
}
if (cmdlen != __GLX_PAD(entry.bytes + extra)) {
return BadLength;
@@ -2179,7 +2179,7 @@ __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc)
extra = (*entry.varsize) (pc + __GLX_RENDER_LARGE_HDR_SIZE,
client->swapped);
if (extra < 0) {
- extra = 0;
+ return BadLength;
}
/* large command's header is 4 bytes longer, so add 4 */
if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) {
commit f4afd53f2aeaddf509bf9f71d1716dd273fd6e14
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Feb 9 22:42:47 2014 -0800
Add REQUEST_FIXED_SIZE testcases to test/misc.c
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/test/misc.c b/test/misc.c
index dd792e6..66330a1 100644
--- a/test/misc.c
+++ b/test/misc.c
@@ -28,6 +28,8 @@
#include <stdint.h>
#include "misc.h"
#include "scrnintstr.h"
+#include "dix.h"
+#include "dixstruct.h"
ScreenInfo screenInfo;
@@ -155,11 +157,46 @@ dix_update_desktop_dimensions(void)
assert_dimensions(-w2, -h2, w2, h2);
}
+static int
+dix_request_fixed_size_overflow(ClientRec *client)
+{
+ xReq req = { 0 };
+
+ client->req_len = req.length = 1;
+ REQUEST_FIXED_SIZE(req, SIZE_MAX);
+ return Success;
+}
+
+static int
+dix_request_fixed_size_match(ClientRec *client)
+{
+ xReq req = { 0 };
+
+ client->req_len = req.length = 9;
+ REQUEST_FIXED_SIZE(req, 30);
+ return Success;
+}
+
+static void
+dix_request_size_checks(void)
+{
+ ClientRec client = { 0 };
+ int rc;
+
+ rc = dix_request_fixed_size_overflow(&client);
+ assert(rc == BadLength);
+
+ rc = dix_request_fixed_size_match(&client);
+ assert(rc == Success);
+}
+
+
int
main(int argc, char **argv)
{
dix_version_compare();
dix_update_desktop_dimensions();
+ dix_request_size_checks();
return 0;
}
commit 2df83bb122debc3c20cfc3d3b0edc85cd0270f79
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Feb 9 21:28:05 2014 -0800
Add request length checking test cases for some Xinput 2.x requests
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/test/xi2/protocol-xigetclientpointer.c b/test/xi2/protocol-xigetclientpointer.c
index 28eb8d3..570c53e 100644
--- a/test/xi2/protocol-xigetclientpointer.c
+++ b/test/xi2/protocol-xigetclientpointer.c
@@ -124,6 +124,11 @@ test_XIGetClientPointer(void)
request.win = INVALID_WINDOW_ID;
request_XIGetClientPointer(&client_request, &request, BadWindow);
+ printf("Testing invalid length\n");
+ client_request.req_len -= 4;
+ request_XIGetClientPointer(&client_request, &request, BadLength);
+ client_request.req_len += 4;
+
test_data.cp_is_set = FALSE;
printf("Testing window None, unset ClientPointer.\n");
diff --git a/test/xi2/protocol-xipassivegrabdevice.c b/test/xi2/protocol-xipassivegrabdevice.c
index c747ddf..95d8ebf 100644
--- a/test/xi2/protocol-xipassivegrabdevice.c
+++ b/test/xi2/protocol-xipassivegrabdevice.c
@@ -139,6 +139,7 @@ request_XIPassiveGrabDevice(ClientPtr client, xXIPassiveGrabDeviceReq * req,
int local_modifiers;
int mask_len;
+ client_request.req_len = req->length;
rc = ProcXIPassiveGrabDevice(&client_request);
assert(rc == error);
@@ -190,6 +191,13 @@ test_XIPassiveGrabDevice(void)
request_XIPassiveGrabDevice(&client_request, request, BadDevice,
request->deviceid);
+ printf("Testing invalid length\n");
+ request->length -= 2;
+ request_XIPassiveGrabDevice(&client_request, request, BadLength,
+ client_request.errorValue);
+ /* re-init request since swapped length test leaves some values swapped */
+ request_init(request, XIPassiveGrabDevice);
+ request->grab_window = CLIENT_WINDOW_ID;
request->deviceid = XIAllMasterDevices;
printf("Testing invalid grab types\n");
diff --git a/test/xi2/protocol-xiquerypointer.c b/test/xi2/protocol-xiquerypointer.c
index fc66b64..c0421f6 100644
--- a/test/xi2/protocol-xiquerypointer.c
+++ b/test/xi2/protocol-xiquerypointer.c
@@ -201,6 +201,10 @@ test_XIQueryPointer(void)
test_data.dev = devices.mouse;
request.deviceid = devices.mouse->id;
request_XIQueryPointer(&client_request, &request, Success);
+
+ /* test REQUEST_SIZE_MATCH */
+ client_request.req_len -= 4;
+ request_XIQueryPointer(&client_request, &request, BadLength);
}
int
diff --git a/test/xi2/protocol-xiwarppointer.c b/test/xi2/protocol-xiwarppointer.c
index f7986c1..3aaaae6 100644
--- a/test/xi2/protocol-xiwarppointer.c
+++ b/test/xi2/protocol-xiwarppointer.c
@@ -198,6 +198,9 @@ test_XIWarpPointer(void)
request_XIWarpPointer(&client_request, &request, Success);
/* FIXME: src_x/y checks */
+
+ client_request.req_len -= 2; /* invalid length */
+ request_XIWarpPointer(&client_request, &request, BadLength);
}
int
commit d153a85f7478a7a67ccb02fbca6390b0ab1732ee
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Feb 9 21:27:27 2014 -0800
Add request length checking test cases for some Xinput 1.x requests
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/configure.ac b/configure.ac
index 140e33e..96524c5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2621,6 +2621,7 @@ hw/kdrive/linux/Makefile
hw/kdrive/src/Makefile
hw/xwayland/Makefile
test/Makefile
+test/xi1/Makefile
test/xi2/Makefile
xserver.ent
xorg-server.pc
diff --git a/test/Makefile.am b/test/Makefile.am
index 8344276..82578d9 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -4,7 +4,7 @@ noinst_PROGRAMS = list string
if XORG
# Tests that require at least some DDX functions in order to fully link
# For now, requires xf86 ddx, could be adjusted to use another
-SUBDIRS += xi2
+SUBDIRS += xi1 xi2
noinst_PROGRAMS += xkb input xtest misc fixes xfree86 os signal-logging touch
if RES
noinst_PROGRAMS += hashtabletest
diff --git a/test/xi1/Makefile.am b/test/xi1/Makefile.am
new file mode 100644
index 0000000..907fa7a
--- /dev/null
+++ b/test/xi1/Makefile.am
@@ -0,0 +1,34 @@
+if ENABLE_UNIT_TESTS
+if HAVE_LD_WRAP
+noinst_PROGRAMS = \
+ protocol-xchangedevicecontrol
+
+TESTS=$(noinst_PROGRAMS)
+TESTS_ENVIRONMENT = $(XORG_MALLOC_DEBUG_ENV)
+
+AM_CFLAGS = $(DIX_CFLAGS) @XORG_CFLAGS@
+AM_CPPFLAGS = @XORG_INCS@ -I$(srcdir)/../xi2
+TEST_LDADD=../libxservertest.la $(XORG_SYS_LIBS) $(XSERVER_SYS_LIBS) $(GLX_SYS_LIBS)
+COMMON_SOURCES=$(srcdir)/../xi2/protocol-common.c
+
+if SPECIAL_DTRACE_OBJECTS
+TEST_LDADD += $(OS_LIB) $(DIX_LIB)
+endif
+
+protocol_xchangedevicecontrol_LDADD=$(TEST_LDADD)
+
+protocol_xchangedevicecontrol_LDFLAGS=$(AM_LDFLAGS) -Wl,-wrap,WriteToClient
+
+protocol_xchangedevicecontrol_SOURCES=$(COMMON_SOURCES) protocol-xchangedevicecontrol.c
+
+else
+# Print that xi1-tests were skipped (exit code 77 for automake test harness)
+TESTS = xi1-tests
+CLEANFILES = $(TESTS)
+
+xi1-tests:
+ @echo 'echo "ld -wrap support required for xi1 unit tests, skipping"' > $@
+ @echo 'exit 77' >> $@
+ $(AM_V_GEN)chmod +x $@
+endif
+endif
diff --git a/test/xi1/protocol-xchangedevicecontrol.c b/test/xi1/protocol-xchangedevicecontrol.c
new file mode 100644
index 0000000..8e638b2
--- /dev/null
+++ b/test/xi1/protocol-xchangedevicecontrol.c
@@ -0,0 +1,122 @@
+/**
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+/*
+ * Protocol testing for ChangeDeviceControl request.
+ */
+#include <stdint.h>
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/XIproto.h>
+#include "inputstr.h"
+#include "chgdctl.h"
+
+#include "protocol-common.h"
+
+static ClientRec client_request;
+
+static void
+reply_ChangeDeviceControl(ClientPtr client, int len, char *data, void *userdata)
+{
+ xChangeDeviceControlReply *rep = (xChangeDeviceControlReply *) data;
+
+ if (client->swapped) {
+ swapl(&rep->length);
+ swaps(&rep->sequenceNumber);
+ }
+
+ reply_check_defaults(rep, len, ChangeDeviceControl);
+
+ /* XXX: check status code in reply */
+}
+
+static void
+request_ChangeDeviceControl(ClientPtr client, xChangeDeviceControlReq * req,
+ xDeviceCtl *ctl, int error)
+{
+ int rc;
+
+ client_request.req_len = req->length;
+ rc = ProcXChangeDeviceControl(&client_request);
+ assert(rc == error);
+
+ /* XXX: ChangeDeviceControl doesn't seem to fill in errorValue to check */
+
+ client_request.swapped = TRUE;
+ swaps(&req->length);
+ swaps(&req->control);
+ swaps(&ctl->length);
+ swaps(&ctl->control);
+ /* XXX: swap other contents of ctl, depending on type */
+ rc = SProcXChangeDeviceControl(&client_request);
+ assert(rc == error);
+}
+
+static unsigned char *data[4096]; /* the request buffer */
+
+static void
+test_ChangeDeviceControl(void)
+{
+ xChangeDeviceControlReq *request = (xChangeDeviceControlReq *) data;
+ xDeviceCtl *control = (xDeviceCtl *) (&request[1]);
+
+ request_init(request, ChangeDeviceControl);
+
+ reply_handler = reply_ChangeDeviceControl;
+
+ client_request = init_client(request->length, request);
+
+ printf("Testing invalid lengths:\n");
+ printf(" -- no control struct\n");
+ request_ChangeDeviceControl(&client_request, request, control, BadLength);
+
+ printf(" -- xDeviceResolutionCtl\n");
+ request_init(request, ChangeDeviceControl);
+ request->control = DEVICE_RESOLUTION;
+ control->length = (sizeof(xDeviceResolutionCtl) >> 2);
+ request->length += control->length - 2;
+ request_ChangeDeviceControl(&client_request, request, control, BadLength);
+
+ printf(" -- xDeviceEnableCtl\n");
+ request_init(request, ChangeDeviceControl);
+ request->control = DEVICE_ENABLE;
+ control->length = (sizeof(xDeviceEnableCtl) >> 2);
+ request->length += control->length - 2;
+ request_ChangeDeviceControl(&client_request, request, control, BadLength);
+
+ /* XXX: Test functionality! */
+}
+
+int
+main(int argc, char **argv)
+{
+ init_simple();
+
+ test_ChangeDeviceControl();
+
+ return 0;
+}
commit a0ece23a8bd300c8be10812d368dc8058c97c63e
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 20:02:20 2014 -0800
xfixes: unvalidated length in SProcXFixesSelectSelectionInput [CVE-2014-8102]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/xfixes/select.c b/xfixes/select.c
index c088ed3..e964d58 100644
--- a/xfixes/select.c
+++ b/xfixes/select.c
@@ -201,6 +201,7 @@ SProcXFixesSelectSelectionInput(ClientPtr client)
{
REQUEST(xXFixesSelectSelectionInputReq);
+ REQUEST_SIZE_MATCH(xXFixesSelectSelectionInputReq);
swaps(&stuff->length);
swapl(&stuff->window);
swapl(&stuff->selection);
commit 5d3a788aeb2fbd3ca2812747dc18c94a8b981c63
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 19:51:29 2014 -0800
render: unvalidated lengths in Render extn. swapped procs [CVE-2014-8100 2/2]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/render/render.c b/render/render.c
index 200e0c8..723f380 100644
--- a/render/render.c
+++ b/render/render.c
@@ -1995,7 +1995,7 @@ static int
SProcRenderQueryVersion(ClientPtr client)
{
REQUEST(xRenderQueryVersionReq);
-
+ REQUEST_SIZE_MATCH(xRenderQueryVersionReq);
swaps(&stuff->length);
swapl(&stuff->majorVersion);
swapl(&stuff->minorVersion);
@@ -2006,6 +2006,7 @@ static int
SProcRenderQueryPictFormats(ClientPtr client)
{
REQUEST(xRenderQueryPictFormatsReq);
+ REQUEST_SIZE_MATCH(xRenderQueryPictFormatsReq);
swaps(&stuff->length);
return (*ProcRenderVector[stuff->renderReqType]) (client);
}
@@ -2014,6 +2015,7 @@ static int
SProcRenderQueryPictIndexValues(ClientPtr client)
{
REQUEST(xRenderQueryPictIndexValuesReq);
+ REQUEST_AT_LEAST_SIZE(xRenderQueryPictIndexValuesReq);
swaps(&stuff->length);
swapl(&stuff->format);
return (*ProcRenderVector[stuff->renderReqType]) (client);
@@ -2029,6 +2031,7 @@ static int
SProcRenderCreatePicture(ClientPtr client)
{
REQUEST(xRenderCreatePictureReq);
+ REQUEST_AT_LEAST_SIZE(xRenderCreatePictureReq);
swaps(&stuff->length);
swapl(&stuff->pid);
swapl(&stuff->drawable);
@@ -2042,6 +2045,7 @@ static int
SProcRenderChangePicture(ClientPtr client)
{
REQUEST(xRenderChangePictureReq);
+ REQUEST_AT_LEAST_SIZE(xRenderChangePictureReq);
swaps(&stuff->length);
swapl(&stuff->picture);
swapl(&stuff->mask);
@@ -2053,6 +2057,7 @@ static int
SProcRenderSetPictureClipRectangles(ClientPtr client)
{
REQUEST(xRenderSetPictureClipRectanglesReq);
+ REQUEST_AT_LEAST_SIZE(xRenderSetPictureClipRectanglesReq);
swaps(&stuff->length);
swapl(&stuff->picture);
swaps(&stuff->xOrigin);
@@ -2065,6 +2070,7 @@ static int
SProcRenderFreePicture(ClientPtr client)
{
REQUEST(xRenderFreePictureReq);
+ REQUEST_SIZE_MATCH(xRenderFreePictureReq);
swaps(&stuff->length);
swapl(&stuff->picture);
return (*ProcRenderVector[stuff->renderReqType]) (client);
@@ -2074,6 +2080,7 @@ static int
SProcRenderComposite(ClientPtr client)
{
REQUEST(xRenderCompositeReq);
+ REQUEST_SIZE_MATCH(xRenderCompositeReq);
swaps(&stuff->length);
swapl(&stuff->src);
swapl(&stuff->mask);
@@ -2093,6 +2100,7 @@ static int
SProcRenderScale(ClientPtr client)
{
REQUEST(xRenderScaleReq);
+ REQUEST_SIZE_MATCH(xRenderScaleReq);
swaps(&stuff->length);
swapl(&stuff->src);
swapl(&stuff->dst);
@@ -2193,6 +2201,7 @@ static int
SProcRenderCreateGlyphSet(ClientPtr client)
{
REQUEST(xRenderCreateGlyphSetReq);
+ REQUEST_SIZE_MATCH(xRenderCreateGlyphSetReq);
swaps(&stuff->length);
swapl(&stuff->gsid);
swapl(&stuff->format);
@@ -2203,6 +2212,7 @@ static int
SProcRenderReferenceGlyphSet(ClientPtr client)
{
REQUEST(xRenderReferenceGlyphSetReq);
+ REQUEST_SIZE_MATCH(xRenderReferenceGlyphSetReq);
swaps(&stuff->length);
swapl(&stuff->gsid);
swapl(&stuff->existing);
@@ -2213,6 +2223,7 @@ static int
SProcRenderFreeGlyphSet(ClientPtr client)
{
REQUEST(xRenderFreeGlyphSetReq);
+ REQUEST_SIZE_MATCH(xRenderFreeGlyphSetReq);
swaps(&stuff->length);
swapl(&stuff->glyphset);
return (*ProcRenderVector[stuff->renderReqType]) (client);
@@ -2227,6 +2238,7 @@ SProcRenderAddGlyphs(ClientPtr client)
xGlyphInfo *gi;
REQUEST(xRenderAddGlyphsReq);
+ REQUEST_AT_LEAST_SIZE(xRenderAddGlyphsReq);
swaps(&stuff->length);
swapl(&stuff->glyphset);
swapl(&stuff->nglyphs);
@@ -2261,6 +2273,7 @@ static int
SProcRenderFreeGlyphs(ClientPtr client)
{
REQUEST(xRenderFreeGlyphsReq);
+ REQUEST_AT_LEAST_SIZE(xRenderFreeGlyphsReq);
swaps(&stuff->length);
swapl(&stuff->glyphset);
SwapRestL(stuff);
@@ -2278,6 +2291,7 @@ SProcRenderCompositeGlyphs(ClientPtr client)
int size;
REQUEST(xRenderCompositeGlyphsReq);
+ REQUEST_AT_LEAST_SIZE(xRenderCompositeGlyphsReq);
switch (stuff->renderReqType) {
default:
commit b5f9ef03df6a650571b29d3d1c1d2b67c6e84336
Author: Julien Cristau <jcristau at debian.org>
Date: Tue Oct 28 10:30:04 2014 +0100
render: check request size before reading it [CVE-2014-8100 1/2]
Otherwise we may be reading outside of the client request.
Signed-off-by: Julien Cristau <jcristau at debian.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
diff --git a/render/render.c b/render/render.c
index e3031da..200e0c8 100644
--- a/render/render.c
+++ b/render/render.c
@@ -276,11 +276,11 @@ ProcRenderQueryVersion(ClientPtr client)
REQUEST(xRenderQueryVersionReq);
+ REQUEST_SIZE_MATCH(xRenderQueryVersionReq);
+
pRenderClient->major_version = stuff->majorVersion;
pRenderClient->minor_version = stuff->minorVersion;
- REQUEST_SIZE_MATCH(xRenderQueryVersionReq);
-
if ((stuff->majorVersion * 1000 + stuff->minorVersion) <
(SERVER_RENDER_MAJOR_VERSION * 1000 + SERVER_RENDER_MINOR_VERSION)) {
rep.majorVersion = stuff->majorVersion;
commit 3df2fcf12499ebdb26b9b67419ea485a42041f33
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 19:38:09 2014 -0800
randr: unvalidated lengths in RandR extension swapped procs [CVE-2014-8101]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/randr/rrsdispatch.c b/randr/rrsdispatch.c
index 08c3b6a..47558cf 100644
--- a/randr/rrsdispatch.c
+++ b/randr/rrsdispatch.c
@@ -27,6 +27,7 @@ SProcRRQueryVersion(ClientPtr client)
{
REQUEST(xRRQueryVersionReq);
+ REQUEST_SIZE_MATCH(xRRQueryVersionReq);
swaps(&stuff->length);
swapl(&stuff->majorVersion);
swapl(&stuff->minorVersion);
@@ -38,6 +39,7 @@ SProcRRGetScreenInfo(ClientPtr client)
{
REQUEST(xRRGetScreenInfoReq);
+ REQUEST_SIZE_MATCH(xRRGetScreenInfoReq);
swaps(&stuff->length);
swapl(&stuff->window);
return (*ProcRandrVector[stuff->randrReqType]) (client);
@@ -69,6 +71,7 @@ SProcRRSelectInput(ClientPtr client)
{
REQUEST(xRRSelectInputReq);
+ REQUEST_SIZE_MATCH(xRRSelectInputReq);
swaps(&stuff->length);
swapl(&stuff->window);
swaps(&stuff->enable);
@@ -152,6 +155,7 @@ SProcRRConfigureOutputProperty(ClientPtr client)
{
REQUEST(xRRConfigureOutputPropertyReq);
+ REQUEST_AT_LEAST_SIZE(xRRConfigureOutputPropertyReq);
swaps(&stuff->length);
swapl(&stuff->output);
swapl(&stuff->property);
commit d155b7a8e38e74aee96bf52c20c8b6a330d7d462
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 19:33:34 2014 -0800
present: unvalidated lengths in Present extension procs [CVE-2014-8103 2/2]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
Reviewed-by: Julien Cristau <jcristau at debian.org>
diff --git a/present/present_request.c b/present/present_request.c
index 835890d..7c53e72 100644
--- a/present/present_request.c
+++ b/present/present_request.c
@@ -210,6 +210,7 @@ proc_present_query_capabilities (ClientPtr client)
RRCrtcPtr crtc = NULL;
int r;
+ REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess);
switch (r) {
case Success:
@@ -254,6 +255,7 @@ static int
sproc_present_query_version(ClientPtr client)
{
REQUEST(xPresentQueryVersionReq);
+ REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
swaps(&stuff->length);
swapl(&stuff->majorVersion);
@@ -265,6 +267,7 @@ static int
sproc_present_pixmap(ClientPtr client)
{
REQUEST(xPresentPixmapReq);
+ REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
swaps(&stuff->length);
swapl(&stuff->window);
@@ -284,6 +287,7 @@ static int
sproc_present_notify_msc(ClientPtr client)
{
REQUEST(xPresentNotifyMSCReq);
+ REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
swaps(&stuff->length);
swapl(&stuff->window);
@@ -297,6 +301,7 @@ static int
sproc_present_select_input (ClientPtr client)
{
REQUEST(xPresentSelectInputReq);
+ REQUEST_SIZE_MATCH(xPresentSelectInputReq);
swaps(&stuff->length);
swapl(&stuff->window);
@@ -308,6 +313,7 @@ static int
sproc_present_query_capabilities (ClientPtr client)
{
REQUEST(xPresentQueryCapabilitiesReq);
+ REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
swaps(&stuff->length);
swapl(&stuff->target);
return (*proc_present_vector[stuff->presentReqType]) (client);
commit 0a6085aaf3581cca558d960ea176ddf3a41a2213
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 19:28:05 2014 -0800
dri3: unvalidated lengths in DRI3 extension swapped procs [CVE-2014-8103 1/2]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/dri3/dri3_request.c b/dri3/dri3_request.c
index fe45620..2d75588 100644
--- a/dri3/dri3_request.c
+++ b/dri3/dri3_request.c
@@ -321,6 +321,7 @@ static int
sproc_dri3_query_version(ClientPtr client)
{
REQUEST(xDRI3QueryVersionReq);
+ REQUEST_SIZE_MATCH(xDRI3QueryVersionReq);
swaps(&stuff->length);
swapl(&stuff->majorVersion);
@@ -332,6 +333,7 @@ static int
sproc_dri3_open(ClientPtr client)
{
REQUEST(xDRI3OpenReq);
+ REQUEST_SIZE_MATCH(xDRI3OpenReq);
swaps(&stuff->length);
swapl(&stuff->drawable);
@@ -343,6 +345,7 @@ static int
sproc_dri3_pixmap_from_buffer(ClientPtr client)
{
REQUEST(xDRI3PixmapFromBufferReq);
+ REQUEST_SIZE_MATCH(xDRI3PixmapFromBufferReq);
swaps(&stuff->length);
swapl(&stuff->pixmap);
@@ -358,6 +361,7 @@ static int
sproc_dri3_buffer_from_pixmap(ClientPtr client)
{
REQUEST(xDRI3BufferFromPixmapReq);
+ REQUEST_SIZE_MATCH(xDRI3BufferFromPixmapReq);
swaps(&stuff->length);
swapl(&stuff->pixmap);
@@ -368,6 +372,7 @@ static int
sproc_dri3_fence_from_fd(ClientPtr client)
{
REQUEST(xDRI3FenceFromFDReq);
+ REQUEST_SIZE_MATCH(xDRI3FenceFromFDReq);
swaps(&stuff->length);
swapl(&stuff->drawable);
@@ -379,6 +384,7 @@ static int
sproc_dri3_fd_from_fence(ClientPtr client)
{
REQUEST(xDRI3FDFromFenceReq);
+ REQUEST_SIZE_MATCH(xDRI3FDFromFenceReq);
swaps(&stuff->length);
swapl(&stuff->drawable);
commit 32a95fb7c7dbe22c9441c62762dfa4a8ec54d6c3
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 19:23:17 2014 -0800
Xv: unvalidated lengths in XVideo extension swapped procs [CVE-2014-8099]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/Xext/xvdisp.c b/Xext/xvdisp.c
index 86f982a..c2d0fc9 100644
--- a/Xext/xvdisp.c
+++ b/Xext/xvdisp.c
@@ -1121,6 +1121,7 @@ static int
SProcXvQueryExtension(ClientPtr client)
{
REQUEST(xvQueryExtensionReq);
+ REQUEST_SIZE_MATCH(xvQueryExtensionReq);
swaps(&stuff->length);
return XvProcVector[xv_QueryExtension] (client);
}
@@ -1129,6 +1130,7 @@ static int
SProcXvQueryAdaptors(ClientPtr client)
{
REQUEST(xvQueryAdaptorsReq);
+ REQUEST_SIZE_MATCH(xvQueryAdaptorsReq);
swaps(&stuff->length);
swapl(&stuff->window);
return XvProcVector[xv_QueryAdaptors] (client);
@@ -1138,6 +1140,7 @@ static int
SProcXvQueryEncodings(ClientPtr client)
{
REQUEST(xvQueryEncodingsReq);
+ REQUEST_SIZE_MATCH(xvQueryEncodingsReq);
swaps(&stuff->length);
swapl(&stuff->port);
return XvProcVector[xv_QueryEncodings] (client);
@@ -1147,6 +1150,7 @@ static int
SProcXvGrabPort(ClientPtr client)
{
REQUEST(xvGrabPortReq);
+ REQUEST_SIZE_MATCH(xvGrabPortReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->time);
@@ -1157,6 +1161,7 @@ static int
SProcXvUngrabPort(ClientPtr client)
{
REQUEST(xvUngrabPortReq);
+ REQUEST_SIZE_MATCH(xvUngrabPortReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->time);
@@ -1167,6 +1172,7 @@ static int
SProcXvPutVideo(ClientPtr client)
{
REQUEST(xvPutVideoReq);
+ REQUEST_SIZE_MATCH(xvPutVideoReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1186,6 +1192,7 @@ static int
SProcXvPutStill(ClientPtr client)
{
REQUEST(xvPutStillReq);
+ REQUEST_SIZE_MATCH(xvPutStillReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1205,6 +1212,7 @@ static int
SProcXvGetVideo(ClientPtr client)
{
REQUEST(xvGetVideoReq);
+ REQUEST_SIZE_MATCH(xvGetVideoReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1224,6 +1232,7 @@ static int
SProcXvGetStill(ClientPtr client)
{
REQUEST(xvGetStillReq);
+ REQUEST_SIZE_MATCH(xvGetStillReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1243,6 +1252,7 @@ static int
SProcXvPutImage(ClientPtr client)
{
REQUEST(xvPutImageReq);
+ REQUEST_AT_LEAST_SIZE(xvPutImageReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1266,6 +1276,7 @@ static int
SProcXvShmPutImage(ClientPtr client)
{
REQUEST(xvShmPutImageReq);
+ REQUEST_SIZE_MATCH(xvShmPutImageReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1293,6 +1304,7 @@ static int
SProcXvSelectVideoNotify(ClientPtr client)
{
REQUEST(xvSelectVideoNotifyReq);
+ REQUEST_SIZE_MATCH(xvSelectVideoNotifyReq);
swaps(&stuff->length);
swapl(&stuff->drawable);
return XvProcVector[xv_SelectVideoNotify] (client);
@@ -1302,6 +1314,7 @@ static int
SProcXvSelectPortNotify(ClientPtr client)
{
REQUEST(xvSelectPortNotifyReq);
+ REQUEST_SIZE_MATCH(xvSelectPortNotifyReq);
swaps(&stuff->length);
swapl(&stuff->port);
return XvProcVector[xv_SelectPortNotify] (client);
@@ -1311,6 +1324,7 @@ static int
SProcXvStopVideo(ClientPtr client)
{
REQUEST(xvStopVideoReq);
+ REQUEST_SIZE_MATCH(xvStopVideoReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->drawable);
@@ -1321,6 +1335,7 @@ static int
SProcXvSetPortAttribute(ClientPtr client)
{
REQUEST(xvSetPortAttributeReq);
+ REQUEST_SIZE_MATCH(xvSetPortAttributeReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->attribute);
@@ -1332,6 +1347,7 @@ static int
SProcXvGetPortAttribute(ClientPtr client)
{
REQUEST(xvGetPortAttributeReq);
+ REQUEST_SIZE_MATCH(xvGetPortAttributeReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->attribute);
@@ -1342,6 +1358,7 @@ static int
SProcXvQueryBestSize(ClientPtr client)
{
REQUEST(xvQueryBestSizeReq);
+ REQUEST_SIZE_MATCH(xvQueryBestSizeReq);
swaps(&stuff->length);
swapl(&stuff->port);
swaps(&stuff->vid_w);
@@ -1355,6 +1372,7 @@ static int
SProcXvQueryPortAttributes(ClientPtr client)
{
REQUEST(xvQueryPortAttributesReq);
+ REQUEST_SIZE_MATCH(xvQueryPortAttributesReq);
swaps(&stuff->length);
swapl(&stuff->port);
return XvProcVector[xv_QueryPortAttributes] (client);
@@ -1364,6 +1382,7 @@ static int
SProcXvQueryImageAttributes(ClientPtr client)
{
REQUEST(xvQueryImageAttributesReq);
+ REQUEST_SIZE_MATCH(xvQueryImageAttributesReq);
swaps(&stuff->length);
swapl(&stuff->port);
swapl(&stuff->id);
@@ -1376,6 +1395,7 @@ static int
SProcXvListImageFormats(ClientPtr client)
{
REQUEST(xvListImageFormatsReq);
+ REQUEST_SIZE_MATCH(xvListImageFormatsReq);
swaps(&stuff->length);
swapl(&stuff->port);
return XvProcVector[xv_ListImageFormats] (client);
commit 7553082b9b883b5f130044f3d53bce2f0b660e52
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 17:18:54 2014 -0800
xcmisc: unvalidated length in SProcXCMiscGetXIDList() [CVE-2014-8096]
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/Xext/xcmisc.c b/Xext/xcmisc.c
index 034bfb6..1e91010 100644
--- a/Xext/xcmisc.c
+++ b/Xext/xcmisc.c
@@ -167,6 +167,7 @@ static int
SProcXCMiscGetXIDList(ClientPtr client)
{
REQUEST(xXCMiscGetXIDListReq);
+ REQUEST_SIZE_MATCH(xXCMiscGetXIDListReq);
swaps(&stuff->length);
swapl(&stuff->count);
commit 73c63afb93c0af1bfd1969bf6e71c9edca586c77
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Sun Jan 26 10:54:41 2014 -0800
Xi: unvalidated lengths in Xinput extension [CVE-2014-8095]
Multiple functions in the Xinput extension handling of requests from
clients failed to check that the length of the request sent by the
client was large enough to perform all the required operations and
thus could read or write to memory outside the bounds of the request
buffer.
This commit includes the creation of a new REQUEST_AT_LEAST_EXTRA_SIZE
macro in include/dix.h for the common case of needing to ensure a
request is large enough to include both the request itself and a
minimum amount of extra data following the request header.
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/Xi/chgdctl.c b/Xi/chgdctl.c
index d078aa2..b3ee867 100644
--- a/Xi/chgdctl.c
+++ b/Xi/chgdctl.c
@@ -78,7 +78,7 @@ SProcXChangeDeviceControl(ClientPtr client)
REQUEST(xChangeDeviceControlReq);
swaps(&stuff->length);
- REQUEST_AT_LEAST_SIZE(xChangeDeviceControlReq);
+ REQUEST_AT_LEAST_EXTRA_SIZE(xChangeDeviceControlReq, sizeof(xDeviceCtl));
swaps(&stuff->control);
ctl = (xDeviceCtl *) &stuff[1];
swaps(&ctl->control);
@@ -115,7 +115,7 @@ ProcXChangeDeviceControl(ClientPtr client)
xDeviceEnableCtl *e;
REQUEST(xChangeDeviceControlReq);
- REQUEST_AT_LEAST_SIZE(xChangeDeviceControlReq);
+ REQUEST_AT_LEAST_EXTRA_SIZE(xChangeDeviceControlReq, sizeof(xDeviceCtl));
len = stuff->length - bytes_to_int32(sizeof(xChangeDeviceControlReq));
ret = dixLookupDevice(&dev, stuff->deviceid, client, DixManageAccess);
@@ -192,6 +192,10 @@ ProcXChangeDeviceControl(ClientPtr client)
break;
case DEVICE_ENABLE:
e = (xDeviceEnableCtl *) &stuff[1];
+ if ((len != bytes_to_int32(sizeof(xDeviceEnableCtl)))) {
+ ret = BadLength;
+ goto out;
+ }
if (IsXTestDevice(dev, NULL))
status = !Success;
diff --git a/Xi/chgfctl.c b/Xi/chgfctl.c
index 6dcf60c..224c2ba 100644
--- a/Xi/chgfctl.c
+++ b/Xi/chgfctl.c
@@ -467,6 +467,8 @@ ProcXChangeFeedbackControl(ClientPtr client)
xStringFeedbackCtl *f = ((xStringFeedbackCtl *) &stuff[1]);
if (client->swapped) {
+ if (len < bytes_to_int32(sizeof(xStringFeedbackCtl)))
+ return BadLength;
swaps(&f->num_keysyms);
}
if (len !=
diff --git a/Xi/sendexev.c b/Xi/sendexev.c
index 3c21386..183f88d 100644
--- a/Xi/sendexev.c
+++ b/Xi/sendexev.c
@@ -135,6 +135,9 @@ ProcXSendExtensionEvent(ClientPtr client)
if (ret != Success)
return ret;
+ if (stuff->num_events == 0)
+ return ret;
+
/* The client's event type must be one defined by an extension. */
first = ((xEvent *) &stuff[1]);
diff --git a/Xi/xiallowev.c b/Xi/xiallowev.c
index ebef233..ca263ef 100644
--- a/Xi/xiallowev.c
+++ b/Xi/xiallowev.c
@@ -48,6 +48,7 @@ int
SProcXIAllowEvents(ClientPtr client)
{
REQUEST(xXIAllowEventsReq);
+ REQUEST_AT_LEAST_SIZE(xXIAllowEventsReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
@@ -55,6 +56,7 @@ SProcXIAllowEvents(ClientPtr client)
if (stuff->length > 3) {
xXI2_2AllowEventsReq *req_xi22 = (xXI2_2AllowEventsReq *) stuff;
+ REQUEST_AT_LEAST_SIZE(xXI2_2AllowEventsReq);
swapl(&req_xi22->touchid);
swapl(&req_xi22->grab_window);
}
diff --git a/Xi/xichangecursor.c b/Xi/xichangecursor.c
index 7a1bb7a..8e6255b 100644
--- a/Xi/xichangecursor.c
+++ b/Xi/xichangecursor.c
@@ -57,11 +57,11 @@ int
SProcXIChangeCursor(ClientPtr client)
{
REQUEST(xXIChangeCursorReq);
+ REQUEST_SIZE_MATCH(xXIChangeCursorReq);
swaps(&stuff->length);
swapl(&stuff->win);
swapl(&stuff->cursor);
swaps(&stuff->deviceid);
- REQUEST_SIZE_MATCH(xXIChangeCursorReq);
return (ProcXIChangeCursor(client));
}
diff --git a/Xi/xichangehierarchy.c b/Xi/xichangehierarchy.c
index 9e36354..2732445 100644
--- a/Xi/xichangehierarchy.c
+++ b/Xi/xichangehierarchy.c
@@ -411,7 +411,7 @@ int
ProcXIChangeHierarchy(ClientPtr client)
{
xXIAnyHierarchyChangeInfo *any;
- int required_len = sizeof(xXIChangeHierarchyReq);
+ size_t len; /* length of data remaining in request */
int rc = Success;
int flags[MAXDEVICES] = { 0 };
@@ -421,21 +421,46 @@ ProcXIChangeHierarchy(ClientPtr client)
if (!stuff->num_changes)
return rc;
+ if (stuff->length > (INT_MAX >> 2))
+ return BadAlloc;
+ len = (stuff->length << 2) - sizeof(xXIAnyHierarchyChangeInfo);
+
any = (xXIAnyHierarchyChangeInfo *) &stuff[1];
while (stuff->num_changes--) {
+ if (len < sizeof(xXIAnyHierarchyChangeInfo)) {
+ rc = BadLength;
+ goto unwind;
+ }
+
SWAPIF(swaps(&any->type));
SWAPIF(swaps(&any->length));
- required_len += any->length;
- if ((stuff->length * 4) < required_len)
+ if ((any->length > (INT_MAX >> 2)) || (len < (any->length << 2)))
return BadLength;
+#define CHANGE_SIZE_MATCH(type) \
+ do { \
+ if ((len < sizeof(type)) || (any->length != (sizeof(type) >> 2))) { \
+ rc = BadLength; \
+ goto unwind; \
+ } \
+ } while(0)
+
switch (any->type) {
case XIAddMaster:
{
xXIAddMasterInfo *c = (xXIAddMasterInfo *) any;
+ /* Variable length, due to appended name string */
+ if (len < sizeof(xXIAddMasterInfo)) {
+ rc = BadLength;
+ goto unwind;
+ }
SWAPIF(swaps(&c->name_len));
+ if (c->name_len > (len - sizeof(xXIAddMasterInfo))) {
+ rc = BadLength;
+ goto unwind;
+ }
rc = add_master(client, c, flags);
if (rc != Success)
@@ -446,6 +471,7 @@ ProcXIChangeHierarchy(ClientPtr client)
{
xXIRemoveMasterInfo *r = (xXIRemoveMasterInfo *) any;
+ CHANGE_SIZE_MATCH(xXIRemoveMasterInfo);
rc = remove_master(client, r, flags);
if (rc != Success)
goto unwind;
@@ -455,6 +481,7 @@ ProcXIChangeHierarchy(ClientPtr client)
{
xXIDetachSlaveInfo *c = (xXIDetachSlaveInfo *) any;
+ CHANGE_SIZE_MATCH(xXIDetachSlaveInfo);
rc = detach_slave(client, c, flags);
if (rc != Success)
goto unwind;
@@ -464,6 +491,7 @@ ProcXIChangeHierarchy(ClientPtr client)
{
xXIAttachSlaveInfo *c = (xXIAttachSlaveInfo *) any;
+ CHANGE_SIZE_MATCH(xXIAttachSlaveInfo);
rc = attach_slave(client, c, flags);
if (rc != Success)
goto unwind;
@@ -471,6 +499,7 @@ ProcXIChangeHierarchy(ClientPtr client)
break;
}
+ len -= any->length * 4;
any = (xXIAnyHierarchyChangeInfo *) ((char *) any + any->length * 4);
}
diff --git a/Xi/xigetclientpointer.c b/Xi/xigetclientpointer.c
index 3c90d58..306dd39 100644
--- a/Xi/xigetclientpointer.c
+++ b/Xi/xigetclientpointer.c
@@ -50,6 +50,7 @@ int
SProcXIGetClientPointer(ClientPtr client)
{
REQUEST(xXIGetClientPointerReq);
+ REQUEST_SIZE_MATCH(xXIGetClientPointerReq);
swaps(&stuff->length);
swapl(&stuff->win);
diff --git a/Xi/xigrabdev.c b/Xi/xigrabdev.c
index 63d95bc..e2a2ae3 100644
--- a/Xi/xigrabdev.c
+++ b/Xi/xigrabdev.c
@@ -47,6 +47,11 @@ int
SProcXIGrabDevice(ClientPtr client)
{
REQUEST(xXIGrabDeviceReq);
+ /*
+ * Check here for at least the length of the struct we swap, then
+ * let ProcXIGrabDevice check the full size after we swap mask_len.
+ */
+ REQUEST_AT_LEAST_SIZE(xXIGrabDeviceReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
@@ -71,7 +76,7 @@ ProcXIGrabDevice(ClientPtr client)
unsigned int pointer_mode;
REQUEST(xXIGrabDeviceReq);
- REQUEST_AT_LEAST_SIZE(xXIGrabDeviceReq);
+ REQUEST_FIXED_SIZE(xXIGrabDeviceReq, ((size_t) stuff->mask_len) * 4);
ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
if (ret != Success)
@@ -131,6 +136,7 @@ int
SProcXIUngrabDevice(ClientPtr client)
{
REQUEST(xXIUngrabDeviceReq);
+ REQUEST_SIZE_MATCH(xXIUngrabDeviceReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
@@ -148,6 +154,7 @@ ProcXIUngrabDevice(ClientPtr client)
TimeStamp time;
REQUEST(xXIUngrabDeviceReq);
+ REQUEST_SIZE_MATCH(xXIUngrabDeviceReq);
ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
if (ret != Success)
diff --git a/Xi/xipassivegrab.c b/Xi/xipassivegrab.c
index 700622d..9241ffd 100644
--- a/Xi/xipassivegrab.c
+++ b/Xi/xipassivegrab.c
@@ -53,6 +53,7 @@ SProcXIPassiveGrabDevice(ClientPtr client)
uint32_t *mods;
REQUEST(xXIPassiveGrabDeviceReq);
+ REQUEST_AT_LEAST_SIZE(xXIPassiveGrabDeviceReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
@@ -63,6 +64,8 @@ SProcXIPassiveGrabDevice(ClientPtr client)
swaps(&stuff->mask_len);
swaps(&stuff->num_modifiers);
+ REQUEST_FIXED_SIZE(xXIPassiveGrabDeviceReq,
+ ((uint32_t) stuff->mask_len + stuff->num_modifiers) *4);
mods = (uint32_t *) &stuff[1] + stuff->mask_len;
for (i = 0; i < stuff->num_modifiers; i++, mods++) {
@@ -92,7 +95,8 @@ ProcXIPassiveGrabDevice(ClientPtr client)
int mask_len;
REQUEST(xXIPassiveGrabDeviceReq);
- REQUEST_AT_LEAST_SIZE(xXIPassiveGrabDeviceReq);
+ REQUEST_FIXED_SIZE(xXIPassiveGrabDeviceReq,
+ ((uint32_t) stuff->mask_len + stuff->num_modifiers) * 4);
if (stuff->deviceid == XIAllDevices)
dev = inputInfo.all_devices;
@@ -252,6 +256,7 @@ SProcXIPassiveUngrabDevice(ClientPtr client)
uint32_t *modifiers;
REQUEST(xXIPassiveUngrabDeviceReq);
+ REQUEST_AT_LEAST_SIZE(xXIPassiveUngrabDeviceReq);
swaps(&stuff->length);
swapl(&stuff->grab_window);
@@ -259,6 +264,8 @@ SProcXIPassiveUngrabDevice(ClientPtr client)
swapl(&stuff->detail);
swaps(&stuff->num_modifiers);
+ REQUEST_FIXED_SIZE(xXIPassiveUngrabDeviceReq,
+ ((uint32_t) stuff->num_modifiers) << 2);
modifiers = (uint32_t *) &stuff[1];
for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
@@ -277,7 +284,8 @@ ProcXIPassiveUngrabDevice(ClientPtr client)
int i, rc;
REQUEST(xXIPassiveUngrabDeviceReq);
- REQUEST_AT_LEAST_SIZE(xXIPassiveUngrabDeviceReq);
+ REQUEST_FIXED_SIZE(xXIPassiveUngrabDeviceReq,
+ ((uint32_t) stuff->num_modifiers) << 2);
if (stuff->deviceid == XIAllDevices)
dev = inputInfo.all_devices;
diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 463607d..8e8e4b0 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -1013,10 +1013,9 @@ int
SProcXListDeviceProperties(ClientPtr client)
{
REQUEST(xListDevicePropertiesReq);
+ REQUEST_SIZE_MATCH(xListDevicePropertiesReq);
swaps(&stuff->length);
-
- REQUEST_SIZE_MATCH(xListDevicePropertiesReq);
return (ProcXListDeviceProperties(client));
}
@@ -1037,10 +1036,10 @@ int
SProcXDeleteDeviceProperty(ClientPtr client)
{
REQUEST(xDeleteDevicePropertyReq);
+ REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq);
swaps(&stuff->length);
swapl(&stuff->property);
- REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq);
return (ProcXDeleteDeviceProperty(client));
}
@@ -1048,13 +1047,13 @@ int
SProcXGetDeviceProperty(ClientPtr client)
{
REQUEST(xGetDevicePropertyReq);
+ REQUEST_SIZE_MATCH(xGetDevicePropertyReq);
swaps(&stuff->length);
swapl(&stuff->property);
swapl(&stuff->type);
swapl(&stuff->longOffset);
swapl(&stuff->longLength);
- REQUEST_SIZE_MATCH(xGetDevicePropertyReq);
return (ProcXGetDeviceProperty(client));
}
@@ -1253,11 +1252,10 @@ int
SProcXIListProperties(ClientPtr client)
{
REQUEST(xXIListPropertiesReq);
+ REQUEST_SIZE_MATCH(xXIListPropertiesReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
-
- REQUEST_SIZE_MATCH(xXIListPropertiesReq);
return (ProcXIListProperties(client));
}
@@ -1279,11 +1277,11 @@ int
SProcXIDeleteProperty(ClientPtr client)
{
REQUEST(xXIDeletePropertyReq);
+ REQUEST_SIZE_MATCH(xXIDeletePropertyReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
swapl(&stuff->property);
- REQUEST_SIZE_MATCH(xXIDeletePropertyReq);
return (ProcXIDeleteProperty(client));
}
@@ -1291,6 +1289,7 @@ int
SProcXIGetProperty(ClientPtr client)
{
REQUEST(xXIGetPropertyReq);
+ REQUEST_SIZE_MATCH(xXIGetPropertyReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
@@ -1298,7 +1297,6 @@ SProcXIGetProperty(ClientPtr client)
swapl(&stuff->type);
swapl(&stuff->offset);
swapl(&stuff->len);
- REQUEST_SIZE_MATCH(xXIGetPropertyReq);
return (ProcXIGetProperty(client));
}
diff --git a/Xi/xiquerydevice.c b/Xi/xiquerydevice.c
index 4e544f0..67a9a4f 100644
--- a/Xi/xiquerydevice.c
+++ b/Xi/xiquerydevice.c
@@ -54,6 +54,7 @@ int
SProcXIQueryDevice(ClientPtr client)
{
REQUEST(xXIQueryDeviceReq);
+ REQUEST_SIZE_MATCH(xXIQueryDeviceReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
diff --git a/Xi/xiquerypointer.c b/Xi/xiquerypointer.c
index e9bdd42..7ec0c85 100644
--- a/Xi/xiquerypointer.c
+++ b/Xi/xiquerypointer.c
@@ -63,6 +63,8 @@ int
SProcXIQueryPointer(ClientPtr client)
{
REQUEST(xXIQueryPointerReq);
+ REQUEST_SIZE_MATCH(xXIQueryPointerReq);
+
swaps(&stuff->length);
swaps(&stuff->deviceid);
swapl(&stuff->win);
diff --git a/Xi/xiselectev.c b/Xi/xiselectev.c
index 45a996e..168579f 100644
--- a/Xi/xiselectev.c
+++ b/Xi/xiselectev.c
@@ -114,6 +114,7 @@ int
SProcXISelectEvents(ClientPtr client)
{
int i;
+ int len;
xXIEventMask *evmask;
REQUEST(xXISelectEventsReq);
@@ -122,10 +123,17 @@ SProcXISelectEvents(ClientPtr client)
swapl(&stuff->win);
swaps(&stuff->num_masks);
+ len = stuff->length - bytes_to_int32(sizeof(xXISelectEventsReq));
evmask = (xXIEventMask *) &stuff[1];
for (i = 0; i < stuff->num_masks; i++) {
+ if (len < bytes_to_int32(sizeof(xXIEventMask)))
+ return BadLength;
+ len -= bytes_to_int32(sizeof(xXIEventMask));
swaps(&evmask->deviceid);
swaps(&evmask->mask_len);
+ if (len < evmask->mask_len)
+ return BadLength;
+ len -= evmask->mask_len;
evmask =
(xXIEventMask *) (((char *) &evmask[1]) + evmask->mask_len * 4);
}
diff --git a/Xi/xisetclientpointer.c b/Xi/xisetclientpointer.c
index 38ff51e..24d4a53 100644
--- a/Xi/xisetclientpointer.c
+++ b/Xi/xisetclientpointer.c
@@ -51,10 +51,11 @@ int
SProcXISetClientPointer(ClientPtr client)
{
REQUEST(xXISetClientPointerReq);
+ REQUEST_SIZE_MATCH(xXISetClientPointerReq);
+
swaps(&stuff->length);
swapl(&stuff->win);
swaps(&stuff->deviceid);
- REQUEST_SIZE_MATCH(xXISetClientPointerReq);
return (ProcXISetClientPointer(client));
}
diff --git a/Xi/xisetdevfocus.c b/Xi/xisetdevfocus.c
index 372ec24..96a9a16 100644
--- a/Xi/xisetdevfocus.c
+++ b/Xi/xisetdevfocus.c
@@ -44,6 +44,8 @@ int
SProcXISetFocus(ClientPtr client)
{
REQUEST(xXISetFocusReq);
+ REQUEST_AT_LEAST_SIZE(xXISetFocusReq);
+
swaps(&stuff->length);
swaps(&stuff->deviceid);
swapl(&stuff->focus);
@@ -56,6 +58,8 @@ int
SProcXIGetFocus(ClientPtr client)
{
REQUEST(xXIGetFocusReq);
+ REQUEST_AT_LEAST_SIZE(xXIGetFocusReq);
+
swaps(&stuff->length);
swaps(&stuff->deviceid);
diff --git a/Xi/xiwarppointer.c b/Xi/xiwarppointer.c
index 3f051f7..780758a 100644
--- a/Xi/xiwarppointer.c
+++ b/Xi/xiwarppointer.c
@@ -56,6 +56,8 @@ int
SProcXIWarpPointer(ClientPtr client)
{
REQUEST(xXIWarpPointerReq);
+ REQUEST_SIZE_MATCH(xXIWarpPointerReq);
+
swaps(&stuff->length);
swapl(&stuff->src_win);
swapl(&stuff->dst_win);
diff --git a/include/dix.h b/include/dix.h
index e0c6ed8..21176a8 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -74,6 +74,10 @@ SOFTWARE.
if ((sizeof(req) >> 2) > client->req_len )\
return(BadLength)
+#define REQUEST_AT_LEAST_EXTRA_SIZE(req, extra) \
+ if (((sizeof(req) + ((uint64_t) extra)) >> 2) > client->req_len ) \
+ return(BadLength)
+
#define REQUEST_FIXED_SIZE(req, n)\
if (((sizeof(req) >> 2) > client->req_len) || \
((n >> 2) >= client->req_len) || \
commit 2ef42519c41e793579c9cea699c866fee3d9321f
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Wed Jan 22 23:12:04 2014 -0800
dbe: unvalidated lengths in DbeSwapBuffers calls [CVE-2014-8097]
ProcDbeSwapBuffers() has a 32bit (n) length value that it uses to read
from a buffer. The length is never validated, which can lead to out of
bound reads, and possibly returning the data read from out of bounds to
the misbehaving client via an X Error packet.
SProcDbeSwapBuffers() swaps data (for correct endianness) before
handing it off to the real proc. While doing the swapping, the
length field is not validated, which can cause memory corruption.
v2: reorder checks to avoid compilers optimizing out checks for overflow
that happen after we'd already have done the overflowing multiplications.
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/dbe/dbe.c b/dbe/dbe.c
index 527588c..df2ad5c 100644
--- a/dbe/dbe.c
+++ b/dbe/dbe.c
@@ -450,18 +450,20 @@ ProcDbeSwapBuffers(ClientPtr client)
DbeSwapInfoPtr swapInfo;
xDbeSwapInfo *dbeSwapInfo;
int error;
- register int i, j;
- int nStuff;
+ unsigned int i, j;
+ unsigned int nStuff;
REQUEST_AT_LEAST_SIZE(xDbeSwapBuffersReq);
nStuff = stuff->n; /* use local variable for performance. */
if (nStuff == 0) {
+ REQUEST_SIZE_MATCH(xDbeSwapBuffersReq);
return Success;
}
if (nStuff > UINT32_MAX / sizeof(DbeSwapInfoRec))
return BadAlloc;
+ REQUEST_FIXED_SIZE(xDbeSwapBuffersReq, nStuff * sizeof(xDbeSwapInfo));
/* Get to the swap info appended to the end of the request. */
dbeSwapInfo = (xDbeSwapInfo *) &stuff[1];
@@ -914,13 +916,16 @@ static int
SProcDbeSwapBuffers(ClientPtr client)
{
REQUEST(xDbeSwapBuffersReq);
- register int i;
+ unsigned int i;
xDbeSwapInfo *pSwapInfo;
swaps(&stuff->length);
REQUEST_AT_LEAST_SIZE(xDbeSwapBuffersReq);
swapl(&stuff->n);
+ if (stuff->n > UINT32_MAX / sizeof(DbeSwapInfoRec))
+ return BadAlloc;
+ REQUEST_FIXED_SIZE(xDbeSwapBuffersReq, stuff->n * sizeof(xDbeSwapInfo));
if (stuff->n != 0) {
pSwapInfo = (xDbeSwapInfo *) stuff + 1;
commit 6692670fde081bbfe9313f17d84037ae9116702a
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Wed Jan 22 23:40:18 2014 -0800
dri2: integer overflow in ProcDRI2GetBuffers() [CVE-2014-8094]
ProcDRI2GetBuffers() tries to validate a length field (count).
There is an integer overflow in the validation. This can cause
out of bound reads and memory corruption later on.
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
Reviewed-by: Julien Cristau <jcristau at debian.org>
diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c
index ffd66fa..221ec53 100644
--- a/hw/xfree86/dri2/dri2ext.c
+++ b/hw/xfree86/dri2/dri2ext.c
@@ -270,6 +270,9 @@ ProcDRI2GetBuffers(ClientPtr client)
unsigned int *attachments;
REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4);
+ if (stuff->count > (INT_MAX / 4))
+ return BadLength;
+
if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess,
&pDrawable, &status))
return status;
commit e0e11644622a589129a01e11e5d105dc74a098de
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Wed Jan 22 23:44:46 2014 -0800
dix: integer overflow in REQUEST_FIXED_SIZE() [CVE-2014-8092 4/4]
Force use of 64-bit integers when evaluating data provided by clients
in 32-bit fields which can overflow when added or multiplied during
checks.
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/include/dix.h b/include/dix.h
index 991a3ce..e0c6ed8 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -76,7 +76,8 @@ SOFTWARE.
#define REQUEST_FIXED_SIZE(req, n)\
if (((sizeof(req) >> 2) > client->req_len) || \
- (((sizeof(req) + (n) + 3) >> 2) != client->req_len)) \
+ ((n >> 2) >= client->req_len) || \
+ ((((uint64_t) sizeof(req) + (n) + 3) >> 2) != (uint64_t) client->req_len)) \
return(BadLength)
#define LEGAL_NEW_RESOURCE(id,client)\
commit 97015a07b9e15d8ec5608b95d95ec0eb51202acb
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Wed Jan 22 22:37:15 2014 -0800
dix: integer overflow in RegionSizeof() [CVE-2014-8092 3/4]
RegionSizeof contains several integer overflows if a large length
value is passed in. Once we fix it to return 0 on overflow, we
also have to fix the callers to handle this error condition
v2: Fixed limit calculation in RegionSizeof as pointed out by jcristau.
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
Reviewed-by: Julien Cristau <jcristau at debian.org>
diff --git a/dix/region.c b/dix/region.c
index ce1014e..04e5901 100644
--- a/dix/region.c
+++ b/dix/region.c
@@ -169,7 +169,6 @@ Equipment Corporation.
((r1)->y1 <= (r2)->y1) && \
((r1)->y2 >= (r2)->y2) )
-#define xallocData(n) malloc(RegionSizeof(n))
#define xfreeData(reg) if ((reg)->data && (reg)->data->size) free((reg)->data)
#define RECTALLOC_BAIL(pReg,n,bail) \
@@ -205,8 +204,9 @@ if (!(pReg)->data || (((pReg)->data->numRects + (n)) > (pReg)->data->size)) \
#define DOWNSIZE(reg,numRects) \
if (((numRects) < ((reg)->data->size >> 1)) && ((reg)->data->size > 50)) \
{ \
- RegDataPtr NewData; \
- NewData = (RegDataPtr)realloc((reg)->data, RegionSizeof(numRects)); \
+ size_t NewSize = RegionSizeof(numRects); \
+ RegDataPtr NewData = \
+ (NewSize > 0) ? realloc((reg)->data, NewSize) : NULL ; \
if (NewData) \
{ \
NewData->size = (numRects); \
@@ -345,17 +345,20 @@ Bool
RegionRectAlloc(RegionPtr pRgn, int n)
{
RegDataPtr data;
+ size_t rgnSize;
if (!pRgn->data) {
n++;
- pRgn->data = xallocData(n);
+ rgnSize = RegionSizeof(n);
+ pRgn->data = (rgnSize > 0) ? malloc(rgnSize) : NULL;
if (!pRgn->data)
return RegionBreak(pRgn);
pRgn->data->numRects = 1;
*RegionBoxptr(pRgn) = pRgn->extents;
}
else if (!pRgn->data->size) {
- pRgn->data = xallocData(n);
+ rgnSize = RegionSizeof(n);
+ pRgn->data = (rgnSize > 0) ? malloc(rgnSize) : NULL;
if (!pRgn->data)
return RegionBreak(pRgn);
pRgn->data->numRects = 0;
@@ -367,7 +370,8 @@ RegionRectAlloc(RegionPtr pRgn, int n)
n = 250;
}
n += pRgn->data->numRects;
- data = (RegDataPtr) realloc(pRgn->data, RegionSizeof(n));
+ rgnSize = RegionSizeof(n);
+ data = (rgnSize > 0) ? realloc(pRgn->data, rgnSize) : NULL;
if (!data)
return RegionBreak(pRgn);
pRgn->data = data;
@@ -1312,6 +1316,7 @@ RegionFromRects(int nrects, xRectangle *prect, int ctype)
{
RegionPtr pRgn;
+ size_t rgnSize;
RegDataPtr pData;
BoxPtr pBox;
int i;
@@ -1338,7 +1343,8 @@ RegionFromRects(int nrects, xRectangle *prect, int ctype)
}
return pRgn;
}
- pData = xallocData(nrects);
+ rgnSize = RegionSizeof(nrects);
+ pData = (rgnSize > 0) ? malloc(rgnSize) : NULL;
if (!pData) {
RegionBreak(pRgn);
return pRgn;
diff --git a/include/regionstr.h b/include/regionstr.h
index 515e93f..079375d 100644
--- a/include/regionstr.h
+++ b/include/regionstr.h
@@ -127,7 +127,10 @@ RegionEnd(RegionPtr reg)
static inline size_t
RegionSizeof(size_t n)
{
- return (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)));
+ if (n < ((INT_MAX - sizeof(RegDataRec)) / sizeof(BoxRec)))
+ return (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)));
+ else
+ return 0;
}
static inline void
@@ -138,9 +141,10 @@ RegionInit(RegionPtr _pReg, BoxPtr _rect, int _size)
(_pReg)->data = (RegDataPtr) NULL;
}
else {
+ size_t rgnSize;
(_pReg)->extents = RegionEmptyBox;
- if (((_size) > 1) && ((_pReg)->data =
- (RegDataPtr) malloc(RegionSizeof(_size)))) {
+ if (((_size) > 1) && ((rgnSize = RegionSizeof(_size)) > 0) &&
+ (((_pReg)->data = malloc(rgnSize)) != NULL)) {
(_pReg)->data->size = (_size);
(_pReg)->data->numRects = 0;
}
commit bc8e20430b6f6378daf6ce4329029248a88af08b
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Mon Jan 6 23:30:14 2014 -0800
dix: integer overflow in GetHosts() [CVE-2014-8092 2/4]
GetHosts() iterates over all the hosts it has in memory, and copies
them to a buffer. The buffer length is calculated by iterating over
all the hosts and adding up all of their combined length. There is a
potential integer overflow, if there are lots and lots of hosts (with
a combined length of > ~4 gig). This should be possible by repeatedly
calling ProcChangeHosts() on 64bit machines with enough memory.
This patch caps the list at 1mb, because multi-megabyte hostname
lists for X access control are insane.
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/os/access.c b/os/access.c
index 5c510de..f393c8d 100644
--- a/os/access.c
+++ b/os/access.c
@@ -1296,6 +1296,10 @@ GetHosts(void **data, int *pnHosts, int *pLen, BOOL * pEnabled)
for (host = validhosts; host; host = host->next) {
nHosts++;
n += pad_to_int32(host->len) + sizeof(xHostEntry);
+ /* Could check for INT_MAX, but in reality having more than 1mb of
+ hostnames in the access list is ridiculous */
+ if (n >= 1048576)
+ break;
}
if (n) {
*data = ptr = malloc(n);
@@ -1304,6 +1308,8 @@ GetHosts(void **data, int *pnHosts, int *pLen, BOOL * pEnabled)
}
for (host = validhosts; host; host = host->next) {
len = host->len;
+ if ((ptr + sizeof(xHostEntry) + len) > (data + n))
+ break;
((xHostEntry *) ptr)->family = host->family;
((xHostEntry *) ptr)->length = len;
ptr += sizeof(xHostEntry);
commit eeae42d60bf3d5663ea088581f6c28a82cd17829
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Wed Jan 22 21:11:16 2014 -0800
dix: integer overflow in ProcPutImage() [CVE-2014-8092 1/4]
ProcPutImage() calculates a length field from a width, left pad and depth
specified by the client (if the specified format is XYPixmap).
The calculations for the total amount of memory the server needs for the
pixmap can overflow a 32-bit number, causing out-of-bounds memory writes
on 32-bit systems (since the length is stored in a long int variable).
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/dix/dispatch.c b/dix/dispatch.c
index d844a09..55b978d 100644
--- a/dix/dispatch.c
+++ b/dix/dispatch.c
@@ -2000,6 +2000,9 @@ ProcPutImage(ClientPtr client)
tmpImage = (char *) &stuff[1];
lengthProto = length;
+ if (lengthProto >= (INT32_MAX / stuff->height))
+ return BadLength;
+
if ((bytes_to_int32(lengthProto * stuff->height) +
bytes_to_int32(sizeof(xPutImageReq))) != client->req_len)
return BadLength;
commit 90cc925c5991fcb203f72d00b04419cd754a9b2c
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date: Fri Jan 17 18:54:03 2014 -0800
unchecked malloc may allow unauthed client to crash Xserver [CVE-2014-8091]
authdes_ezdecode() calls malloc() using a length provided by the
connection handshake sent by a newly connected client in order
to authenticate to the server, so should be treated as untrusted.
It didn't check if malloc() failed before writing to the newly
allocated buffer, so could lead to a server crash if the server
fails to allocate memory (up to UINT16_MAX bytes, since the len
field is a CARD16 in the X protocol).
Reported-by: Ilja Van Sprundel <ivansprundel at ioactive.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
diff --git a/os/rpcauth.c b/os/rpcauth.c
index d60ea35..413cc61 100644
--- a/os/rpcauth.c
+++ b/os/rpcauth.c
@@ -66,6 +66,10 @@ authdes_ezdecode(const char *inmsg, int len)
SVCXPRT xprt;
temp_inmsg = malloc(len);
+ if (temp_inmsg == NULL) {
+ why = AUTH_FAILED; /* generic error, since there is no AUTH_BADALLOC */
+ return NULL;
+ }
memmove(temp_inmsg, inmsg, len);
memset((char *) &msg, 0, sizeof(msg));
More information about the xorg-commit
mailing list