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[libpng16] Attempting to fix an oss-fuzz issue.

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Glenn Randers-Pehrson 2017-09-08 08:27:10 -05:00
parent 051dcaf877
commit 8592873f24
1 changed files with 6 additions and 2 deletions
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8
png.c
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@ -816,14 +816,14 @@ png_get_copyright(png_const_structrp png_ptr)
#else #else
# ifdef __STDC__ # ifdef __STDC__
return PNG_STRING_NEWLINE \ return PNG_STRING_NEWLINE \
"libpng version 1.6.33beta03 - September 4, 2017" PNG_STRING_NEWLINE \ "libpng version 1.6.33beta03 - September 8, 2017" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \ "Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \ PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE; PNG_STRING_NEWLINE;
# else # else
return "libpng version 1.6.33beta03 - September 4, 2017\ return "libpng version 1.6.33beta03 - September 8, 2017\
Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\ Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@ -2224,6 +2224,10 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
* being in range. All defined tag types have an 8 byte header - a 4 byte * being in range. All defined tag types have an 8 byte header - a 4 byte
* type signature then 0. * type signature then 0.
*/ */
if (!tag_start)
return 0;
if ((tag_start & 3) != 0) if ((tag_start & 3) != 0)
{ {
/* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is /* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is