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Commit 9c3842a4 authored by Alan Coopersmith's avatar Alan Coopersmith Committed by Mike Gabriel
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render: unvalidated lengths in Render extn. swapped procs [CVE-2014-8100 2/2]

v2: backport to nx-libs 3.6.x (Mike DePaulo) Signed-off-by: 's avatarAlan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: 's avatarPeter Hutterer <peter.hutterer@who-t.net> Conflicts: render/render.c
parent 6c820648
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Showing with 16 additions and 1 deletion
nx-X11/programs/Xserver/render/render.c
View file @ 9c3842a4
......@@ -2014,6 +2014,7 @@ SProcRenderQueryVersion (ClientPtr client)
{
register int n;
REQUEST(xRenderQueryVersionReq);
REQUEST_SIZE_MATCH(xRenderQueryVersionReq);
swaps(&stuff->length, n);
swapl(&stuff->majorVersion, n);
......@@ -2026,6 +2027,7 @@ SProcRenderQueryPictFormats (ClientPtr client)
{
register int n;
REQUEST(xRenderQueryPictFormatsReq);
REQUEST_SIZE_MATCH(xRenderQueryPictFormatsReq);
swaps(&stuff->length, n);
return (*ProcRenderVector[stuff->renderReqType]) (client);
}
......@@ -2035,6 +2037,7 @@ SProcRenderQueryPictIndexValues (ClientPtr client)
{
register int n;
REQUEST(xRenderQueryPictIndexValuesReq);
REQUEST_AT_LEAST_SIZE(xRenderQueryPictIndexValuesReq);
swaps(&stuff->length, n);
swapl(&stuff->format, n);
return (*ProcRenderVector[stuff->renderReqType]) (client);
......@@ -2051,6 +2054,7 @@ SProcRenderCreatePicture (ClientPtr client)
{
register int n;
REQUEST(xRenderCreatePictureReq);
REQUEST_AT_LEAST_SIZE(xRenderCreatePictureReq);
swaps(&stuff->length, n);
swapl(&stuff->pid, n);
swapl(&stuff->drawable, n);
......@@ -2065,6 +2069,7 @@ SProcRenderChangePicture (ClientPtr client)
{
register int n;
REQUEST(xRenderChangePictureReq);
REQUEST_AT_LEAST_SIZE(xRenderChangePictureReq);
swaps(&stuff->length, n);
swapl(&stuff->picture, n);
swapl(&stuff->mask, n);
......@@ -2077,6 +2082,7 @@ SProcRenderSetPictureClipRectangles (ClientPtr client)
{
register int n;
REQUEST(xRenderSetPictureClipRectanglesReq);
REQUEST_AT_LEAST_SIZE(xRenderSetPictureClipRectanglesReq);
swaps(&stuff->length, n);
swapl(&stuff->picture, n);
SwapRestS(stuff);
......@@ -2088,6 +2094,7 @@ SProcRenderFreePicture (ClientPtr client)
{
register int n;
REQUEST(xRenderFreePictureReq);
REQUEST_SIZE_MATCH(xRenderFreePictureReq);
swaps(&stuff->length, n);
swapl(&stuff->picture, n);
return (*ProcRenderVector[stuff->renderReqType]) (client);
......@@ -2098,6 +2105,7 @@ SProcRenderComposite (ClientPtr client)
{
register int n;
REQUEST(xRenderCompositeReq);
REQUEST_SIZE_MATCH(xRenderCompositeReq);
swaps(&stuff->length, n);
swapl(&stuff->src, n);
swapl(&stuff->mask, n);
......@@ -2118,6 +2126,7 @@ SProcRenderScale (ClientPtr client)
{
register int n;
REQUEST(xRenderScaleReq);
REQUEST_SIZE_MATCH(xRenderScaleReq);
swaps(&stuff->length, n);
swapl(&stuff->src, n);
swapl(&stuff->dst, n);
......@@ -2223,6 +2232,7 @@ SProcRenderCreateGlyphSet (ClientPtr client)
{
register int n;
REQUEST(xRenderCreateGlyphSetReq);
REQUEST_SIZE_MATCH(xRenderCreateGlyphSetReq);
swaps(&stuff->length, n);
swapl(&stuff->gsid, n);
swapl(&stuff->format, n);
......@@ -2234,6 +2244,7 @@ SProcRenderReferenceGlyphSet (ClientPtr client)
{
register int n;
REQUEST(xRenderReferenceGlyphSetReq);
REQUEST_SIZE_MATCH(xRenderReferenceGlyphSetReq);
swaps(&stuff->length, n);
swapl(&stuff->gsid, n);
swapl(&stuff->existing, n);
......@@ -2245,6 +2256,7 @@ SProcRenderFreeGlyphSet (ClientPtr client)
{
register int n;
REQUEST(xRenderFreeGlyphSetReq);
REQUEST_SIZE_MATCH(xRenderFreeGlyphSetReq);
swaps(&stuff->length, n);
swapl(&stuff->glyphset, n);
return (*ProcRenderVector[stuff->renderReqType]) (client);
......@@ -2259,6 +2271,7 @@ SProcRenderAddGlyphs (ClientPtr client)
void *end;
xGlyphInfo *gi;
REQUEST(xRenderAddGlyphsReq);
REQUEST_AT_LEAST_SIZE(xRenderAddGlyphsReq);
swaps(&stuff->length, n);
swapl(&stuff->glyphset, n);
swapl(&stuff->nglyphs, n);
......@@ -2295,6 +2308,7 @@ SProcRenderFreeGlyphs (ClientPtr client)
{
register int n;
REQUEST(xRenderFreeGlyphsReq);
REQUEST_AT_LEAST_SIZE(xRenderFreeGlyphsReq);
swaps(&stuff->length, n);
swapl(&stuff->glyphset, n);
SwapRestL(stuff);
......@@ -2313,7 +2327,8 @@ SProcRenderCompositeGlyphs (ClientPtr client)
int size;
REQUEST(xRenderCompositeGlyphsReq);
REQUEST_AT_LEAST_SIZE(xRenderCompositeGlyphsReq);
switch (stuff->renderReqType) {
default: size = 1; break;
case X_RenderCompositeGlyphs16: size = 2; break;
......
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