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[sfnt] Fix infinite loops with broken cmaps (#46167). 

* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next): Take care
of border condidions (i.e., if the loops exit naturally).
This commit is contained in:
Werner Lemberg 2015-10-10 13:34:11 +02:00
parent da34673e54
commit 8de39a7919
2 changed files with 13 additions and 0 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2015-10-10 Werner Lemberg <wl@gnu.org>
[sfnt] Fix infinite loops with broken cmaps (#46167).
* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next): Take care
of border condidions (i.e., if the loops exit naturally).
2015-10-10 Werner Lemberg <wl@gnu.org>
[truetype] More sanity tests for GX handling.

6
src/sfnt/ttcmap.c
View File

@ -1891,7 +1891,10 @@
/* if `gindex' is invalid, the remaining values */
/* in this group are invalid, too */
if ( gindex >= (FT_UInt)face->num_glyphs )
{
gindex = 0;
continue;
}
result = char_code;
break;
@ -2277,7 +2280,10 @@
/* if `gindex' is invalid, the remaining values */
/* in this group are invalid, too */
if ( gindex >= (FT_UInt)face->num_glyphs )
{
gindex = 0;
continue;
}
cmap->cur_charcode = char_code;
cmap->cur_gindex = gindex;