| Message ID | 20190420002205.27419-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | f4a1b8d409639b2394589efe20ad55410cce391c |
| Headers | show |
On Sat, Apr 20, 2019 at 02:22:05AM +0200, Michael Niedermayer wrote: > 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> > --- > libavcodec/truemotion2.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) will apply [...]
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index 100880c257..03c516cc86 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -687,8 +687,8 @@ 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;
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> --- libavcodec/truemotion2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)