| Message ID | 20211203171956.12231-3-michael@niedermayer.cc |
|---|---|
| State | New |
| Headers | show |
| Series | [FFmpeg-devel,1/4] avformat/mov: Disallow duplicate smdm | expand |
| Context | Check | Description |
|---|---|---|
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
| andriy/make_ppc | success | Make finished |
| andriy/make_fate_ppc | success | Make fate finished |
On Fri, Dec 03, 2021 at 06:19:55PM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: -16777216 * 131 cannot be represented in type 'int' > Fixes: 23835/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5669943160078336 > Fixes: 41101/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-4636330705944576 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/alacdsp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/alacdsp.c b/libavcodec/alacdsp.c index 9996eb4319d..8718d1b6b1d 100644 --- a/libavcodec/alacdsp.c +++ b/libavcodec/alacdsp.c @@ -34,7 +34,7 @@ static void decorrelate_stereo(int32_t *buffer[2], int nb_samples, a = buffer[0][i]; b = buffer[1][i]; - a -= (b * decorr_left_weight) >> decorr_shift; + a -= (int)(b * (unsigned)decorr_left_weight) >> decorr_shift; b += a; buffer[0][i] = b;
Fixes: signed integer overflow: -16777216 * 131 cannot be represented in type 'int' Fixes: 23835/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5669943160078336 Fixes: 41101/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-4636330705944576 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/alacdsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)