This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch 3.6.x in repository nx-libs. commit 8931066077a04999d973932e04da577bd6906c82 Author: Adam Jackson <ajax@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) v4: backport to nx-libs 3.6.x (Mike DePaulo) 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: Julien Cristau <jcristau@debian.org> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Fedora X Ninjas <x@fedoraproject.org> Signed-off-by: Dave Airlie <airlied@redhat.com> fix safe_Add --- nx-X11/programs/Xserver/GL/glx/single2.c | 21 +++++++++++++++------ nx-X11/programs/Xserver/GL/glx/single2swap.c | 15 +++++++++++---- nx-X11/programs/Xserver/GL/glx/singlepix.c | 19 ++++++++++++++----- nx-X11/programs/Xserver/GL/glx/singlepixswap.c | 17 ++++++++++++----- 4 files changed, 52 insertions(+), 20 deletions(-) diff --git a/nx-X11/programs/Xserver/GL/glx/single2.c b/nx-X11/programs/Xserver/GL/glx/single2.c index 9fee5ff..10152c3 100644 --- a/nx-X11/programs/Xserver/GL/glx/single2.c +++ b/nx-X11/programs/Xserver/GL/glx/single2.c @@ -48,11 +48,14 @@ 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; @@ -78,10 +81,12 @@ int __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; @@ -106,7 +111,7 @@ int __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; @@ -114,6 +119,8 @@ int __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 +195,6 @@ int __glXDisp_RenderMode(__GLXclientState *cl, GLbyte *pc) ** selection array, as per the API for glRenderMode itself. */ noChangeAllowed:; - client = cl->client; reply.length = nitems; reply.type = X_Reply; reply.sequenceNumber = client->sequence; @@ -204,9 +210,11 @@ int __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; @@ -219,10 +227,11 @@ int __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; @@ -233,7 +242,6 @@ int __glXDisp_Finish(__GLXclientState *cl, GLbyte *pc) __GLX_NOTE_FLUSHED_CMDS(cx); /* Send empty reply packet to indicate finish is finished */ - client = cl->client; __GLX_BEGIN_REPLY(0); __GLX_SEND_HEADER(); return Success; @@ -302,7 +310,7 @@ char *__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; @@ -311,6 +319,8 @@ int 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. */ @@ -327,7 +337,6 @@ int 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; /* ** Restrict extensions to those that are supported by both the diff --git a/nx-X11/programs/Xserver/GL/glx/single2swap.c b/nx-X11/programs/Xserver/GL/glx/single2swap.c index dab98ad..4b8541b 100644 --- a/nx-X11/programs/Xserver/GL/glx/single2swap.c +++ b/nx-X11/programs/Xserver/GL/glx/single2swap.c @@ -48,12 +48,14 @@ int __glXDispSwap_FeedbackBuffer(__GLXclientState *cl, GLbyte *pc) { + ClientPtr client = cl->client; GLsizei size; GLenum type; __GLX_DECLARE_SWAP_VARIABLES; __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) { @@ -82,11 +84,13 @@ int __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) { @@ -113,7 +117,7 @@ int __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; @@ -123,6 +127,8 @@ int __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) { @@ -201,7 +207,6 @@ int __glXDispSwap_RenderMode(__GLXclientState *cl, GLbyte *pc) ** selection array, as per the API for glRenderMode itself. */ noChangeAllowed:; - client = cl->client; reply.length = nitems; reply.type = X_Reply; reply.sequenceNumber = client->sequence; @@ -222,10 +227,12 @@ int __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) { @@ -239,11 +246,12 @@ int __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) { @@ -255,7 +263,6 @@ int __glXDispSwap_Finish(__GLXclientState *cl, GLbyte *pc) __GLX_NOTE_FLUSHED_CMDS(cx); /* 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/nx-X11/programs/Xserver/GL/glx/singlepix.c b/nx-X11/programs/Xserver/GL/glx/singlepix.c index be804d8..a156db5 100644 --- a/nx-X11/programs/Xserver/GL/glx/singlepix.c +++ b/nx-X11/programs/Xserver/GL/glx/singlepix.c @@ -57,6 +57,8 @@ int __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; @@ -108,6 +110,7 @@ int __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; @@ -204,6 +207,7 @@ int __glXDisp_GetSeparableFilter(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0, height=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -227,13 +231,11 @@ int __glXDisp_GetSeparableFilter(__GLXclientState *cl, GLbyte *pc) compsize = __glGetTexImage_size(target,1,format,type,width,1,1); compsize2 = __glGetTexImage_size(target,1,format,type,height,1,1); - if (compsize < 0) return BadLength; - if (compsize2 < 0) compsize2 = 0; - compsize = __GLX_PAD(compsize); - compsize2 = __GLX_PAD(compsize2); + if ((compsize = safe_pad(compsize)) < 0) return BadLength; + if ((compsize2 = safe_pad(compsize2)) < 0) return BadLength; 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), @@ -269,6 +271,7 @@ int __glXDisp_GetConvolutionFilter(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0, height=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -328,6 +331,8 @@ int __glXDisp_GetHistogram(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -376,6 +381,8 @@ int __glXDisp_GetMinmax(__GLXclientState *cl, GLbyte *pc) int error; char *answer, answerBuffer[200]; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -419,6 +426,8 @@ int __glXDisp_GetColorTable(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; diff --git a/nx-X11/programs/Xserver/GL/glx/singlepixswap.c b/nx-X11/programs/Xserver/GL/glx/singlepixswap.c index cdc6f16..24f2e76 100644 --- a/nx-X11/programs/Xserver/GL/glx/singlepixswap.c +++ b/nx-X11/programs/Xserver/GL/glx/singlepixswap.c @@ -58,6 +58,8 @@ int __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) { @@ -120,6 +122,7 @@ int __glXDispSwap_GetTexImage(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0, height=0, depth=1; + REQUEST_FIXED_SIZE(xGLXSingleReq, 24); __GLX_SWAP_INT(&((xGLXSingleReq *)pc)->contextTag); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { @@ -190,6 +193,7 @@ int __glXDispSwap_GetPolygonStipple(__GLXclientState *cl, GLbyte *pc) char *answer; __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) { @@ -230,6 +234,7 @@ int __glXDispSwap_GetSeparableFilter(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0, height=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -257,13 +262,11 @@ int __glXDispSwap_GetSeparableFilter(__GLXclientState *cl, GLbyte *pc) compsize = __glGetTexImage_size(target,1,format,type,width,1,1); compsize2 = __glGetTexImage_size(target,1,format,type,height,1,1); - if (compsize < 0) return BadLength; - if (compsize2 < 0) compsize2 = 0; - compsize = __GLX_PAD(compsize); - compsize2 = __GLX_PAD(compsize2); + if ((compsize = safe_pad(compsize)) < 0) return BadLength; + if ((compsize2 = safe_pad(compsize2)) < 0) return BadLength; 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), @@ -302,6 +305,7 @@ int __glXDispSwap_GetConvolutionFilter(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0, height=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -368,6 +372,7 @@ int __glXDispSwap_GetHistogram(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -422,6 +427,7 @@ int __glXDispSwap_GetMinmax(__GLXclientState *cl, GLbyte *pc) __GLX_DECLARE_SWAP_VARIABLES; char *answer, answerBuffer[200]; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; @@ -470,6 +476,7 @@ int __glXDispSwap_GetColorTable(__GLXclientState *cl, GLbyte *pc) char *answer, answerBuffer[200]; GLint width=0; + REQUEST_FIXED_SIZE(xGLXSingleReq, 16); cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); if (!cx) { return error; -- Alioth's /srv/git/_hooks_/post-receive-email on /srv/git/code.x2go.org/nx-libs.git