xserver: Branch 'master'
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Tue May 14 18:12:06 UTC 2019
glx/glxcmds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
New commits:
commit 2aec5c3c812ffe4a85b5e62452b244819a812dd6
Author: Adam Jackson <ajax at redhat.com>
Date: Tue May 14 12:39:23 2019 -0400
glx: Fix potential crashes in glXWait{GL,X}
glxc->drawPriv will be NULL if the context is direct, or if it is
current but without a bound drawable. Mesa's libGL won't normally emit
protocol for direct contexts for these calls, but a malign client could
still crash the server.
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index 54d452e58..6af050940 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -765,7 +765,7 @@ __glXDisp_WaitGL(__GLXclientState * cl, GLbyte * pc)
glFinish();
}
- if (glxc && glxc->drawPriv->waitGL)
+ if (glxc && glxc->drawPriv && glxc->drawPriv->waitGL)
(*glxc->drawPriv->waitGL) (glxc->drawPriv);
return Success;
@@ -789,7 +789,7 @@ __glXDisp_WaitX(__GLXclientState * cl, GLbyte * pc)
return error;
}
- if (glxc && glxc->drawPriv->waitX)
+ if (glxc && glxc->drawPriv && glxc->drawPriv->waitX)
(*glxc->drawPriv->waitX) (glxc->drawPriv);
return Success;
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