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authorAdam Jackson <ajax@redhat.com>2014-11-10 12:13:44 -0500
committerAlan Coopersmith <alan.coopersmith@oracle.com>2014-12-08 18:09:50 -0800
commitc91e4abc3b892f42802efa20fef7ada442c2d3f5 (patch)
treeea9184a76a317e99e7c149e18b32b745a459a1e6 /glx
parenta33a939e6abb255b14d8dbc85fcbd2c55b958bae (diff)
glx: Top-level length checking for swapped VendorPrivate requests [CVE-2014-8098 4/8]
Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Diffstat (limited to 'glx')
-rw-r--r--glx/glxcmdsswap.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/glx/glxcmdsswap.c b/glx/glxcmdsswap.c
index 5d179f317..9ec1222f8 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);