Message ID | 20200118203452.15332-2-michael@niedermayer.cc |
---|---|
State | Accepted |
Headers | show |
Series | [FFmpeg-devel,1/2] avcodec/wmalosslessdec: Fix loop in revert_acfilter() | expand |
Context | Check | Description |
---|---|---|
andriy/ffmpeg-patchwork | success | Make fate finished |
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 9b620377a9..f5961c72c0 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -991,7 +991,7 @@ static int decode_subframe(WmallDecodeCtx *s) if (s->bits_per_sample == 16) { *s->samples_16[c]++ = (int16_t) s->channel_residues[c][j] * (1 << padding_zeroes); } else { - *s->samples_32[c]++ = s->channel_residues[c][j] * (256 << padding_zeroes); + *s->samples_32[c]++ = s->channel_residues[c][j] * (256U << padding_zeroes); } } }
Fixes: signed integer overflow: -53716100 * 256 cannot be represented in type 'int' Fixes: 20143/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5716604000403456 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/wmalosslessdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)