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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:47:30 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:47:30 +0200
commit30463b084b2833193aa6fdc2ceafefc8a1c06fee (patch)
treefd062f7ac7b98d742a781d5f95e59cbb38fb81bc /nx-X11/programs/Xserver/render/glyph.c
parent713da22603c4abc7a97feddd931f29c507b7984b (diff)
downloadnx-libs-30463b084b2833193aa6fdc2ceafefc8a1c06fee.tar.gz
nx-libs-30463b084b2833193aa6fdc2ceafefc8a1c06fee.tar.bz2
nx-libs-30463b084b2833193aa6fdc2ceafefc8a1c06fee.zip
Imported nx-X11-3.2.0-2.tar.gznx-X11/3.2.0-2
Summary: Imported nx-X11-3.2.0-2.tar.gz Keywords: Imported nx-X11-3.2.0-2.tar.gz into Git repository
Diffstat (limited to 'nx-X11/programs/Xserver/render/glyph.c')
-rw-r--r--nx-X11/programs/Xserver/render/glyph.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/nx-X11/programs/Xserver/render/glyph.c b/nx-X11/programs/Xserver/render/glyph.c
index 45c5dd975..9f4d1c87b 100644
--- a/nx-X11/programs/Xserver/render/glyph.c
+++ b/nx-X11/programs/Xserver/render/glyph.c
@@ -43,6 +43,12 @@
#include "picturestr.h"
#include "glyphstr.h"
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif !defined(UINT32_MAX)
+#define UINT32_MAX 0xffffffffU
+#endif
+
/*
* From Knuth -- a good choice for hash/rehash values is p, p-2 where
* p and p-2 are both prime. These tables are sized to have an extra 10%
@@ -334,8 +340,12 @@ AllocateGlyph (xGlyphInfo *gi, int fdepth)
{
int size;
GlyphPtr glyph;
-
- size = gi->height * PixmapBytePad (gi->width, glyphDepths[fdepth]);
+ size_t padded_width;
+
+ padded_width = PixmapBytePad (gi->width, glyphDepths[fdepth]);
+ if (gi->height && padded_width > (UINT32_MAX - sizeof(GlyphRec))/gi->height)
+ return 0;
+ size = gi->height * padded_width;
glyph = (GlyphPtr) xalloc (size + sizeof (GlyphRec));
if (!glyph)
return 0;