xserver: Branch 'xorg-server-1.2-apple' - 5 commits
Jeremy Huddleston
jeremyhu at kemper.freedesktop.org
Thu Jan 17 11:21:59 PST 2008
Xext/EVI.c | 15 ++++++++++++++-
Xext/cup.c | 3 +++
Xext/sampleEVI.c | 29 ++++++++++++++++++++++++-----
Xext/security.c | 6 +++---
Xext/shm.c | 46 ++++++++++++++++++++++++++++++++++++++--------
Xi/chgfctl.c | 7 +------
Xi/chgkmap.c | 14 +++++++-------
Xi/chgprop.c | 10 +++-------
Xi/grabdev.c | 12 +++++-------
Xi/grabdevb.c | 10 +++-------
Xi/grabdevk.c | 9 ++-------
Xi/selectev.c | 11 ++++-------
Xi/sendexev.c | 14 ++++++++------
dix/dixfonts.c | 7 +++++++
14 files changed, 122 insertions(+), 71 deletions(-)
New commits:
commit ca82f294fc1ef1dbe67226800554d5f06aa69383
Author: Matthieu Herrb <matthieu at bluenote.herrb.com>
Date: Thu Jan 17 17:03:39 2008 +0100
Fix for CVE-2007-5958 - File existence disclosure.
(cherry picked from commit 19b95cdd1d14a1e7d1abba1880ab023c96f19bf5)
diff --git a/Xext/security.c b/Xext/security.c
index ac76279..4ba4a20 100644
--- a/Xext/security.c
+++ b/Xext/security.c
@@ -1567,9 +1567,9 @@ SecurityLoadPropertyAccessList(void)
return;
#ifndef __UNIXOS2__
- f = fopen(SecurityPolicyFile, "r");
+ f = Fopen(SecurityPolicyFile, "r");
#else
- f = fopen((char*)__XOS2RedirRoot(SecurityPolicyFile), "r");
+ f = Fopen((char*)__XOS2RedirRoot(SecurityPolicyFile), "r");
#endif
if (!f)
{
@@ -1653,7 +1653,7 @@ SecurityLoadPropertyAccessList(void)
}
#endif /* PROPDEBUG */
- fclose(f);
+ Fclose(f);
} /* SecurityLoadPropertyAccessList */
commit 73abb373e65d3617cdf39dcc8b8b47dd3d7d4c2d
Author: Matthieu Herrb <matthieu at bluenote.herrb.com>
Date: Thu Jan 17 15:29:06 2008 +0100
Fix for CVE-2008-0006 - PCF Font parser buffer overflow.
(cherry picked from commit f09b8007e7f6e60e0b9c9665ec632b578ae08b6f)
diff --git a/dix/dixfonts.c b/dix/dixfonts.c
index 02b6be6..ad540c6 100644
--- a/dix/dixfonts.c
+++ b/dix/dixfonts.c
@@ -329,6 +329,13 @@ doOpenFont(ClientPtr client, OFclosurePtr c)
err = BadFontName;
goto bail;
}
+ /* check values for firstCol, lastCol, firstRow, and lastRow */
+ if (pfont->info.firstCol > pfont->info.lastCol ||
+ pfont->info.firstRow > pfont->info.lastRow ||
+ pfont->info.lastCol - pfont->info.firstCol > 255) {
+ err = AllocError;
+ goto bail;
+ }
if (!pfont->fpe)
pfont->fpe = fpe;
pfont->refcnt++;
commit 0dbe1a0902b9a54af13c53bf0eb2a59e2113fc53
Author: Matthieu Herrb <matthieu at bluenote.herrb.com>
Date: Thu Jan 17 15:28:42 2008 +0100
Fix for CVE-2007-6429 - MIT-SHM and EVI extensions integer overflows.
(cherry picked from commit 8b14f7b74284900b95a319ec80c4333e63af2296)
diff --git a/Xext/EVI.c b/Xext/EVI.c
index 8fe3481..13bd32a 100644
--- a/Xext/EVI.c
+++ b/Xext/EVI.c
@@ -34,6 +34,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <X11/extensions/XEVIstr.h>
#include "EVIstruct.h"
#include "modinit.h"
+#include "scrnintstr.h"
#if 0
static unsigned char XEVIReqCode = 0;
@@ -87,10 +88,22 @@ ProcEVIGetVisualInfo(ClientPtr client)
{
REQUEST(xEVIGetVisualInfoReq);
xEVIGetVisualInfoReply rep;
- int n, n_conflict, n_info, sz_info, sz_conflict;
+ int i, n, n_conflict, n_info, sz_info, sz_conflict;
VisualID32 *conflict;
+ unsigned int total_visuals = 0;
xExtendedVisualInfo *eviInfo;
int status;
+
+ /*
+ * do this first, otherwise REQUEST_FIXED_SIZE can overflow. we assume
+ * here that you don't have more than 2^32 visuals over all your screens;
+ * this seems like a safe assumption.
+ */
+ for (i = 0; i < screenInfo.numScreens; i++)
+ total_visuals += screenInfo.screens[i]->numVisuals;
+ if (stuff->n_visual > total_visuals)
+ return BadValue;
+
REQUEST_FIXED_SIZE(xEVIGetVisualInfoReq, stuff->n_visual * sz_VisualID32);
status = eviPriv->getVisualInfo((VisualID32 *)&stuff[1], (int)stuff->n_visual,
&eviInfo, &n_info, &conflict, &n_conflict);
diff --git a/Xext/sampleEVI.c b/Xext/sampleEVI.c
index d9c5696..60095f4 100644
--- a/Xext/sampleEVI.c
+++ b/Xext/sampleEVI.c
@@ -35,6 +35,13 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <X11/extensions/XEVIstr.h>
#include "EVIstruct.h"
#include "scrnintstr.h"
+
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif !defined(UINT32_MAX)
+#define UINT32_MAX 0xffffffffU
+#endif
+
static int sampleGetVisualInfo(
VisualID32 *visual,
int n_visual,
@@ -43,24 +50,36 @@ static int sampleGetVisualInfo(
VisualID32 **conflict_rn,
int *n_conflict_rn)
{
- int max_sz_evi = n_visual * sz_xExtendedVisualInfo * screenInfo.numScreens;
+ unsigned int max_sz_evi;
VisualID32 *temp_conflict;
xExtendedVisualInfo *evi;
- int max_visuals = 0, max_sz_conflict, sz_conflict = 0;
+ unsigned int max_visuals = 0, max_sz_conflict, sz_conflict = 0;
register int visualI, scrI, sz_evi = 0, conflictI, n_conflict;
- *evi_rn = evi = (xExtendedVisualInfo *)xalloc(max_sz_evi);
- if (!*evi_rn)
- return BadAlloc;
+
+ if (n_visual > UINT32_MAX/(sz_xExtendedVisualInfo * screenInfo.numScreens))
+ return BadAlloc;
+ max_sz_evi = n_visual * sz_xExtendedVisualInfo * screenInfo.numScreens;
+
for (scrI = 0; scrI < screenInfo.numScreens; scrI++) {
if (screenInfo.screens[scrI]->numVisuals > max_visuals)
max_visuals = screenInfo.screens[scrI]->numVisuals;
}
+
+ if (n_visual > UINT32_MAX/(sz_VisualID32 * screenInfo.numScreens
+ * max_visuals))
+ return BadAlloc;
max_sz_conflict = n_visual * sz_VisualID32 * screenInfo.numScreens * max_visuals;
+
+ *evi_rn = evi = (xExtendedVisualInfo *)xalloc(max_sz_evi);
+ if (!*evi_rn)
+ return BadAlloc;
+
temp_conflict = (VisualID32 *)xalloc(max_sz_conflict);
if (!temp_conflict) {
xfree(*evi_rn);
return BadAlloc;
}
+
for (scrI = 0; scrI < screenInfo.numScreens; scrI++) {
for (visualI = 0; visualI < n_visual; visualI++) {
evi[sz_evi].core_visual_id = visual[visualI];
diff --git a/Xext/shm.c b/Xext/shm.c
index be79862..37d9192 100644
--- a/Xext/shm.c
+++ b/Xext/shm.c
@@ -723,6 +723,8 @@ ProcPanoramiXShmCreatePixmap(
int i, j, result;
ShmDescPtr shmdesc;
REQUEST(xShmCreatePixmapReq);
+ unsigned int width, height, depth;
+ unsigned long size;
PanoramiXRes *newPix;
REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
@@ -732,11 +734,26 @@ ProcPanoramiXShmCreatePixmap(
LEGAL_NEW_RESOURCE(stuff->pid, client);
VERIFY_GEOMETRABLE(pDraw, stuff->drawable, client);
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
- if (!stuff->width || !stuff->height)
+
+ width = stuff->width;
+ height = stuff->height;
+ depth = stuff->depth;
+ if (!width || !height || !depth)
{
client->errorValue = 0;
return BadValue;
}
+ if (width > 32767 || height > 32767)
+ return BadAlloc;
+ size = PixmapBytePad(width, depth) * height;
+ if (sizeof(size) == 4) {
+ if (size < width * height)
+ return BadAlloc;
+ /* thankfully, offset is unsigned */
+ if (stuff->offset + size < size)
+ return BadAlloc;
+ }
+
if (stuff->depth != 1)
{
pDepth = pDraw->pScreen->allowedDepths;
@@ -747,9 +764,7 @@ ProcPanoramiXShmCreatePixmap(
return BadValue;
}
CreatePmap:
- VERIFY_SHMSIZE(shmdesc, stuff->offset,
- PixmapBytePad(stuff->width, stuff->depth) * stuff->height,
- client);
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
if(!(newPix = (PanoramiXRes *) xalloc(sizeof(PanoramiXRes))))
return BadAlloc;
@@ -1047,6 +1062,8 @@ ProcShmCreatePixmap(client)
register int i;
ShmDescPtr shmdesc;
REQUEST(xShmCreatePixmapReq);
+ unsigned int width, height, depth;
+ unsigned long size;
REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
client->errorValue = stuff->pid;
@@ -1055,11 +1072,26 @@ ProcShmCreatePixmap(client)
LEGAL_NEW_RESOURCE(stuff->pid, client);
VERIFY_GEOMETRABLE(pDraw, stuff->drawable, client);
VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
- if (!stuff->width || !stuff->height)
+
+ width = stuff->width;
+ height = stuff->height;
+ depth = stuff->depth;
+ if (!width || !height || !depth)
{
client->errorValue = 0;
return BadValue;
}
+ if (width > 32767 || height > 32767)
+ return BadAlloc;
+ size = PixmapBytePad(width, depth) * height;
+ if (sizeof(size) == 4) {
+ if (size < width * height)
+ return BadAlloc;
+ /* thankfully, offset is unsigned */
+ if (stuff->offset + size < size)
+ return BadAlloc;
+ }
+
if (stuff->depth != 1)
{
pDepth = pDraw->pScreen->allowedDepths;
@@ -1070,9 +1102,7 @@ ProcShmCreatePixmap(client)
return BadValue;
}
CreatePmap:
- VERIFY_SHMSIZE(shmdesc, stuff->offset,
- PixmapBytePad(stuff->width, stuff->depth) * stuff->height,
- client);
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
pMap = (*shmFuncs[pDraw->pScreen->myNum]->CreatePixmap)(
pDraw->pScreen, stuff->width,
stuff->height, stuff->depth,
commit a73052b6dab20434f46398b6c064496be9a08b0d
Author: Matthieu Herrb <matthieu at bluenote.herrb.com>
Date: Thu Jan 17 15:27:34 2008 +0100
Fix for CVE-2007-6427 - Xinput extension memory corruption.
(cherry picked from commit dd5e0f5cd5f3a87fee86d99c073ffa7cf89b0a27)
diff --git a/Xi/chgfctl.c b/Xi/chgfctl.c
index d0acc59..ef9b115 100644
--- a/Xi/chgfctl.c
+++ b/Xi/chgfctl.c
@@ -451,18 +451,13 @@ ChangeStringFeedback(ClientPtr client, DeviceIntPtr dev,
xStringFeedbackCtl * f)
{
register char n;
- register long *p;
int i, j;
KeySym *syms, *sup_syms;
syms = (KeySym *) (f + 1);
if (client->swapped) {
swaps(&f->length, n); /* swapped num_keysyms in calling proc */
- p = (long *)(syms);
- for (i = 0; i < f->num_keysyms; i++) {
- swapl(p, n);
- p++;
- }
+ SwapLongs((CARD32 *) syms, f->num_keysyms);
}
if (f->num_keysyms > s->ctrl.max_symbols) {
diff --git a/Xi/chgkmap.c b/Xi/chgkmap.c
index 047b899..09286df 100644
--- a/Xi/chgkmap.c
+++ b/Xi/chgkmap.c
@@ -79,18 +79,14 @@ int
SProcXChangeDeviceKeyMapping(register ClientPtr client)
{
register char n;
- register long *p;
- register int i, count;
+ register unsigned int count;
REQUEST(xChangeDeviceKeyMappingReq);
swaps(&stuff->length, n);
REQUEST_AT_LEAST_SIZE(xChangeDeviceKeyMappingReq);
- p = (long *)&stuff[1];
count = stuff->keyCodes * stuff->keySymsPerKeyCode;
- for (i = 0; i < count; i++) {
- swapl(p, n);
- p++;
- }
+ REQUEST_FIXED_SIZE(xChangeDeviceKeyMappingReq, count * sizeof(CARD32));
+ SwapLongs((CARD32 *) (&stuff[1]), count);
return (ProcXChangeDeviceKeyMapping(client));
}
@@ -106,10 +102,14 @@ ProcXChangeDeviceKeyMapping(register ClientPtr client)
int ret;
unsigned len;
DeviceIntPtr dev;
+ unsigned int count;
REQUEST(xChangeDeviceKeyMappingReq);
REQUEST_AT_LEAST_SIZE(xChangeDeviceKeyMappingReq);
+ count = stuff->keyCodes * stuff->keySymsPerKeyCode;
+ REQUEST_FIXED_SIZE(xChangeDeviceKeyMappingReq, count * sizeof(CARD32));
+
dev = LookupDeviceIntRec(stuff->deviceid);
if (dev == NULL) {
SendErrorToClient(client, IReqCode, X_ChangeDeviceKeyMapping, 0,
diff --git a/Xi/chgprop.c b/Xi/chgprop.c
index 52c3883..8d111c4 100644
--- a/Xi/chgprop.c
+++ b/Xi/chgprop.c
@@ -81,19 +81,15 @@ int
SProcXChangeDeviceDontPropagateList(register ClientPtr client)
{
register char n;
- register long *p;
- register int i;
REQUEST(xChangeDeviceDontPropagateListReq);
swaps(&stuff->length, n);
REQUEST_AT_LEAST_SIZE(xChangeDeviceDontPropagateListReq);
swapl(&stuff->window, n);
swaps(&stuff->count, n);
- p = (long *)&stuff[1];
- for (i = 0; i < stuff->count; i++) {
- swapl(p, n);
- p++;
- }
+ REQUEST_FIXED_SIZE(xChangeDeviceDontPropagateListReq,
+ stuff->count * sizeof(CARD32));
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->count);
return (ProcXChangeDeviceDontPropagateList(client));
}
diff --git a/Xi/grabdev.c b/Xi/grabdev.c
index 3af2346..9abad3d 100644
--- a/Xi/grabdev.c
+++ b/Xi/grabdev.c
@@ -82,8 +82,6 @@ int
SProcXGrabDevice(register ClientPtr client)
{
register char n;
- register long *p;
- register int i;
REQUEST(xGrabDeviceReq);
swaps(&stuff->length, n);
@@ -91,11 +89,11 @@ SProcXGrabDevice(register ClientPtr client)
swapl(&stuff->grabWindow, n);
swapl(&stuff->time, n);
swaps(&stuff->event_count, n);
- p = (long *)&stuff[1];
- for (i = 0; i < stuff->event_count; i++) {
- swapl(p, n);
- p++;
- }
+
+ if (stuff->length != (sizeof(xGrabDeviceReq) >> 2) + stuff->event_count)
+ return BadLength;
+
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
return (ProcXGrabDevice(client));
}
diff --git a/Xi/grabdevb.c b/Xi/grabdevb.c
index 4333550..7f1ab5c 100644
--- a/Xi/grabdevb.c
+++ b/Xi/grabdevb.c
@@ -80,8 +80,6 @@ int
SProcXGrabDeviceButton(register ClientPtr client)
{
register char n;
- register long *p;
- register int i;
REQUEST(xGrabDeviceButtonReq);
swaps(&stuff->length, n);
@@ -89,11 +87,9 @@ SProcXGrabDeviceButton(register ClientPtr client)
swapl(&stuff->grabWindow, n);
swaps(&stuff->modifiers, n);
swaps(&stuff->event_count, n);
- p = (long *)&stuff[1];
- for (i = 0; i < stuff->event_count; i++) {
- swapl(p, n);
- p++;
- }
+ REQUEST_FIXED_SIZE(xGrabDeviceButtonReq,
+ stuff->event_count * sizeof(CARD32));
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
return (ProcXGrabDeviceButton(client));
}
diff --git a/Xi/grabdevk.c b/Xi/grabdevk.c
index 71e72d5..3090e93 100644
--- a/Xi/grabdevk.c
+++ b/Xi/grabdevk.c
@@ -80,8 +80,6 @@ int
SProcXGrabDeviceKey(register ClientPtr client)
{
register char n;
- register long *p;
- register int i;
REQUEST(xGrabDeviceKeyReq);
swaps(&stuff->length, n);
@@ -89,11 +87,8 @@ SProcXGrabDeviceKey(register ClientPtr client)
swapl(&stuff->grabWindow, n);
swaps(&stuff->modifiers, n);
swaps(&stuff->event_count, n);
- p = (long *)&stuff[1];
- for (i = 0; i < stuff->event_count; i++) {
- swapl(p, n);
- p++;
- }
+ REQUEST_FIXED_SIZE(xGrabDeviceKeyReq, stuff->event_count * sizeof(CARD32));
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->event_count);
return (ProcXGrabDeviceKey(client));
}
diff --git a/Xi/selectev.c b/Xi/selectev.c
index 3483804..4c8126d 100644
--- a/Xi/selectev.c
+++ b/Xi/selectev.c
@@ -84,19 +84,16 @@ int
SProcXSelectExtensionEvent(register ClientPtr client)
{
register char n;
- register long *p;
- register int i;
REQUEST(xSelectExtensionEventReq);
swaps(&stuff->length, n);
REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq);
swapl(&stuff->window, n);
swaps(&stuff->count, n);
- p = (long *)&stuff[1];
- for (i = 0; i < stuff->count; i++) {
- swapl(p, n);
- p++;
- }
+ REQUEST_FIXED_SIZE(xSelectExtensionEventReq,
+ stuff->count * sizeof(CARD32));
+ SwapLongs((CARD32 *) (&stuff[1]), stuff->count);
+
return (ProcXSelectExtensionEvent(client));
}
diff --git a/Xi/sendexev.c b/Xi/sendexev.c
index c2763bb..70415af 100644
--- a/Xi/sendexev.c
+++ b/Xi/sendexev.c
@@ -83,7 +83,7 @@ int
SProcXSendExtensionEvent(register ClientPtr client)
{
register char n;
- register long *p;
+ register CARD32 *p;
register int i;
xEvent eventT;
xEvent *eventP;
@@ -94,6 +94,11 @@ SProcXSendExtensionEvent(register ClientPtr client)
REQUEST_AT_LEAST_SIZE(xSendExtensionEventReq);
swapl(&stuff->destination, n);
swaps(&stuff->count, n);
+
+ if (stuff->length != (sizeof(xSendExtensionEventReq) >> 2) + stuff->count +
+ (stuff->num_events * (sizeof(xEvent) >> 2)))
+ return BadLength;
+
eventP = (xEvent *) & stuff[1];
for (i = 0; i < stuff->num_events; i++, eventP++) {
proc = EventSwapVector[eventP->u.u.type & 0177];
@@ -103,11 +108,8 @@ SProcXSendExtensionEvent(register ClientPtr client)
*eventP = eventT;
}
- p = (long *)(((xEvent *) & stuff[1]) + stuff->num_events);
- for (i = 0; i < stuff->count; i++) {
- swapl(p, n);
- p++;
- }
+ p = (CARD32 *)(((xEvent *) & stuff[1]) + stuff->num_events);
+ SwapLongs(p, stuff->count);
return (ProcXSendExtensionEvent(client));
}
commit 6a493ecad3391a8a00082c2e0b37d3f79b7fd1c3
Author: Matthieu Herrb <matthieu at bluenote.herrb.com>
Date: Thu Jan 17 15:28:03 2008 +0100
Fix for CVE-2007-6428 - TOG-cup extension memory corruption.
(cherry picked from commit 4848d49d05a318559afe7a17a19ba055947ee1f5)
diff --git a/Xext/cup.c b/Xext/cup.c
index 10d13ba..631bc24 100644
--- a/Xext/cup.c
+++ b/Xext/cup.c
@@ -196,6 +196,9 @@ int ProcGetReservedColormapEntries(
REQUEST_SIZE_MATCH (xXcupGetReservedColormapEntriesReq);
+ if (stuff->screen >= screenInfo.numScreens)
+ return BadValue;
+
#ifndef HAVE_SPECIAL_DESKTOP_COLORS
citems[CUP_BLACK_PIXEL].pixel =
screenInfo.screens[stuff->screen]->blackPixel;
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