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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-04-20 01:05:44 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-05-09 11:27:34 +0200 |
| commit | 430850d2f0152ff81bf060f40f23262673b1fdb5 (patch) | |
| tree | 3dc22c456a8e7bf3c27995891e8bafb07be53b2e | |
| parent | 485546eec10a13cbacd17901f02794952d621f20 (diff) | |
| download | ffmpeg-430850d2f0152ff81bf060f40f23262673b1fdb5.tar.gz | |
avcodec/truemotion2: Fix 2 integer overflows in tm2_update_block()
Fixes: signed integer overflow: -2147483648 + -1 cannot be represented in type 'int'
Fixes: 14107/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2_fuzzer-5694078680825856
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 f4a1b8d409639b2394589efe20ad55410cce391c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/truemotion2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index 691a05a696..b0a6935b0d 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -674,8 +674,8 @@ static inline void tm2_update_block(TM2Context *ctx, AVFrame *pic, int bx, int b /* update chroma */ for (j = 0; j < 2; j++) { for (i = 0; i < 2; i++) { - U[i] = Uo[i] + GET_TOK(ctx, TM2_UPD); - V[i] = Vo[i] + GET_TOK(ctx, TM2_UPD); + U[i] = Uo[i] + (unsigned)GET_TOK(ctx, TM2_UPD); + V[i] = Vo[i] + (unsigned)GET_TOK(ctx, TM2_UPD); } U += Ustride; V += Vstride; |