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Fix Savannah bug #30168.

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* src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of
subglyphs to avoid endless recursion.
This commit is contained in:
Werner Lemberg 2010-06-21 09:28:32 +02:00
parent 90b07bd541
commit ddc4b136d6
2 changed files with 18 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2010-06-21 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30168.
* src/pfr/pfrgload.c (pfr_glyph_load_compound): Limit the number of
subglyphs to avoid endless recursion.
2010-06-20 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #30145.

12
src/pfr/pfrgload.c
View File

@ -4,7 +4,7 @@
/* */
/* FreeType PFR glyph loader (body). */
/* */
/* Copyright 2002, 2003, 2005, 2007 by */
/* Copyright 2002, 2003, 2005, 2007, 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -598,6 +598,16 @@
FT_UInt new_max = ( org_count + count + 3 ) & (FT_UInt)-4;
/* we arbitrarily limit the number of subglyphs */
/* to avoid endless recursion */
if ( new_max > 64 )
{
error = PFR_Err_Invalid_Table;
FT_ERROR(( "pfr_glyph_load_compound:"
" too many compound glyphs components\n" ));
goto Exit;
}
if ( FT_RENEW_ARRAY( glyph->subs, glyph->max_subs, new_max ) )
goto Exit;