mirrors/librempeg
1
0
Fork 0
mirror of https://github.com/librempeg/librempeg synced 2024-11-22 09:02:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

avcodec/wmalosslessdec: Fix integer overflow with sliding in padding bits

Browse Source 
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>
This commit is contained in:
Michael Niedermayer 2020-01-18 19:55:23 +01:00
parent 5584c0bb94
commit b8a0be9352
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/wmalosslessdec.c
View File

@ -992,7 +992,7 @@ 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);
}
}
}