diff options
Diffstat (limited to 'src/sfnt/ttload.c')
| -rw-r--r-- | src/sfnt/ttload.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/sfnt/ttload.c b/src/sfnt/ttload.c index 3ad33bd..1c174af 100644 --- a/src/sfnt/ttload.c +++ b/src/sfnt/ttload.c @@ -5,7 +5,8 @@ /* Load the basic TrueType tables, i.e., tables that can be either in */ /* TTF or OTF fonts (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */ +/* Copyright 1996-2001, 2002, 2003, 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, */ @@ -77,7 +78,8 @@ { /* For compatibility with Windows, we consider */ /* zero-length tables the same as missing tables. */ - if ( entry->Tag == tag ) { + if ( entry->Tag == tag ) + { if ( entry->Length != 0 ) { FT_TRACE4(( "found table.\n" )); @@ -693,6 +695,15 @@ maxProfile->maxTwilightPoints = 0xFFFFU - 4; } + + /* we arbitrarily limit recursion to avoid stack exhaustion */ + if ( maxProfile->maxComponentDepth > 100 ) + { + FT_TRACE0(( "tt_face_load_maxp:" + " abnormally large component depth (%d) set to 100\n", + maxProfile->maxComponentDepth )); + maxProfile->maxComponentDepth = 100; + } } FT_TRACE3(( "numGlyphs: %u\n", maxProfile->numGlyphs )); |