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[sfnt] Fix Savannah bug #43597.

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* src/sfnt/pngshim.c (Load_SBit_Png): Protect against too large
bitmaps.
This commit is contained in:
Werner Lemberg 2014-11-15 09:05:22 +01:00
parent 257c270bd2
commit 54abd22891
2 changed files with 14 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,10 @@
2014-11-15 Werner Lemberg <wl@gnu.org>
[sfnt] Fix Savannah bug #43597.
* src/sfnt/pngshim.c (Load_SBit_Png): Protect against too large
bitmaps.
2014-11-12 Werner Lemberg <wl@gnu.org>
[sfnt] Fix Savannah bug #43591.

7
src/sfnt/pngshim.c
View File

@ -269,6 +269,13 @@
map->pitch = map->width * 4;
map->num_grays = 256;
/* reject too large bitmaps similarly to the rasterizer */
if ( map->rows > 0x7FFF || map->width > 0x7FFF )
{
error = FT_THROW( Array_Too_Large );
goto DestroyExit;
}
size = map->rows * map->pitch;
error = ft_glyphslot_alloc_bitmap( slot, size );