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[truetype] Integer overflow issues.

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Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7718

* src/truetype/ttinterp.c (Ins_MIRP): Use ADD_LONG.
This commit is contained in:
Werner Lemberg 2018-04-16 10:39:10 +02:00
parent 939bbee1c0
commit 70ac167c47
2 changed files with 13 additions and 3 deletions
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14
ChangeLog
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@ -1,3 +1,13 @@
2018-04-16 Werner Lemberg <wl@gnu.org>
[truetype] Integer overflow issues.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7718
* src/truetype/ttinterp.c (Ins_MIRP): Use ADD_LONG.
2018-04-15 Alexei Podtelezhnikov <apodtele@gmail.com>
[build] Use `info' function of make 3.81.
@ -46,7 +56,7 @@
2018-04-10 Nikolaus Waxweiler <madigens@gmail.com>
* CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Extensive
* CMakeLists.txt, builds/cmake/FindHarfBuzz.cmake: Extensive
modernization measures.
This brings up the minimum required CMake version to 2.8.12.
@ -102,7 +112,7 @@
builds/windows/vc2008/freetype.vcproj,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/freetype.dsp: Remove per-file compile flags.
2018-04-04 Werner Lemberg <wl@gnu.org>

2
src/truetype/ttinterp.c
View File

@ -6193,7 +6193,7 @@
minimum_distance = exc->GS.minimum_distance;
control_value_cutin = exc->GS.control_value_cutin;
point = (FT_UShort)args[0];
cvtEntry = (FT_ULong)( args[1] + 1 );
cvtEntry = (FT_ULong)( ADD_LONG( args[1], 1 ) );
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
if ( SUBPIXEL_HINTING_INFINALITY &&