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| author | Werner Lemberg <wl@gnu.org> | 2017-07-03 06:27:52 +0200 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2017-07-03 06:27:52 +0200 |
| commit | ca799e9be52526739691f120285a27b91fd15d68 (patch) | |
| tree | 0c330fc35706def34a35c0d660325f39a0ebaf26 | |
| parent | abeb28f161bc11be4fcdb8af50ab4b736d34a3e5 (diff) | |
| download | freetype2-ca799e9be52526739691f120285a27b91fd15d68.tar.gz | |
[truetype] Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455
* src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG.
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | src/truetype/ttinterp.c | 2 |
2 files changed, 11 insertions, 1 deletions
@@ -1,3 +1,13 @@ +2017-07-03 Werner Lemberg <wl@gnu.org> + + [truetype] Integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455 + + * src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG. + 2017-07-01 Alexei Podtelezhnikov <apodtele@gmail.com> * src/sfnt/sfobjs.c (sfnt_load_face): Ignore No_Unicode_Glyph_Name. diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c index 24318bf1b..f8bf4af71 100644 --- a/src/truetype/ttinterp.c +++ b/src/truetype/ttinterp.c @@ -4803,7 +4803,7 @@ K = FAST_PROJECT( &exc->zp2.cur[L] ); - exc->func_move( exc, &exc->zp2, L, args[1] - K ); + exc->func_move( exc, &exc->zp2, L, SUB_LONG( args[1], K ) ); /* UNDOCUMENTED! The MS rasterizer does that with */ /* twilight points (confirmed by Greg Hitchcock) */ |