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| author | Werner Lemberg <wl@gnu.org> | 2021-06-19 07:03:40 +0200 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2021-06-19 07:03:40 +0200 |
| commit | b460a50610320c425292518cb5f6341af234e2f9 (patch) | |
| tree | 977199f3058ab330d76824b30f62cbb5bae3f14c | |
| parent | 232243e7495d142f30d4e024f30eda9ca8655154 (diff) | |
| download | freetype2-b460a50610320c425292518cb5f6341af234e2f9.tar.gz | |
[truetype] Fix integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312
* src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`.
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | src/truetype/ttinterp.c | 2 |
2 files changed, 11 insertions, 1 deletions
@@ -1,5 +1,15 @@ 2021-06-19 Werner Lemberg <david@freetype.org> + [truetype] Fix integer overflow. + + Reported as + + https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35312 + + * src/truetype/ttinterp.c (Ins_JMPR): Use `ADD_LONG`. + +2021-06-19 Werner Lemberg <david@freetype.org> + [autofit] Prevent hinting if there are too many segments. This speeds up handling of broken glyphs. diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c index 6747f940d..96b48a003 100644 --- a/src/truetype/ttinterp.c +++ b/src/truetype/ttinterp.c @@ -3593,7 +3593,7 @@ return; } - exc->IP += args[0]; + exc->IP = ADD_LONG( exc->IP, args[0] ); if ( exc->IP < 0 || ( exc->callTop > 0 && exc->IP > exc->callStack[exc->callTop - 1].Def->end ) ) |