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[truetype] Fix `loca' handling for inconsistent number of glyphs. 

Reported by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.

* src/truetype/ttpload.c (tt_face_load_loca): While sanitizing,
handle case where `loca' is the last table in the font.
This commit is contained in:
Werner Lemberg 2010-11-18 20:34:22 +01:00
parent fa764cf868
commit ec4372f565
2 changed files with 16 additions and 2 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2010-11-18 Werner Lemberg <wl@gnu.org>
[truetype] Fix `loca' handling for inconsistent number of glyphs.
Reported by Johnson Y. Yan <yinsen_yan@foxitsoftware.com>.
* src/truetype/ttpload.c (tt_face_load_loca): While sanitizing,
handle case where `loca' is the last table in the font.
2010-11-18 Werner Lemberg <wl@gnu.org>
[sfnt] Ignore all errors while loading `OS/2' table.

10
src/truetype/ttpload.c
View File

@ -4,7 +4,7 @@
/* */
/* TrueType-specific tables loader (body). */
/* */
/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009 by */
/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -137,6 +137,12 @@
dist = diff;
}
if ( entry == limit )
{
/* `loca' is the last table */
dist = stream->size - pos;
}
if ( new_loca_len <= dist )
{
face->num_locations = face->root.num_glyphs;
@ -307,7 +313,7 @@
FT_Short* limit = cur + face->cvt_size;
for ( ; cur < limit; cur++ )
for ( ; cur < limit; cur++ )
*cur = FT_GET_SHORT();
}