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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-16 02:30:57 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-25 15:32:06 +0100 |
| commit | d34202f4f036eb68f5b131138c167e79b5d97aa2 (patch) | |
| tree | 8699b5d883a372b88ef4939bb8833690400611ec | |
| parent | 162b44e110cbb1f78014a971d5d3641cd30e3bc6 (diff) | |
| download | ffmpeg-d34202f4f036eb68f5b131138c167e79b5d97aa2.tar.gz | |
avcodec/truemotion2: Fix integer overflow in tm2_null_res_block()
Fixes: signed integer overflow: 1111638592 - -2122219136 cannot be represented in type 'int'
Fixes: 13441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5732769815068672
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1223696c725a8ea7e80498e6ccfab37eea179b76)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/truemotion2.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index 2945d9948d..bc3f16827c 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -587,7 +587,8 @@ static inline void tm2_null_res_block(TM2Context *ctx, AVFrame *pic, int bx, int { int i; int ct; - int left, right, diff; + unsigned left, right; + int diff; int deltas[16]; TM2_INIT_POINTERS(); |