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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-04 04:55:15 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-05 12:03:15 +0100 |
| commit | ba150051322c02e24c004bd5309468886e1e5ab6 (patch) | |
| tree | be5ca87fbd2cebf306f89c2328d749534411e33d /libavcodec | |
| parent | 29638d4db90d5e3fc107c1beb40808f53cc7acaa (diff) | |
| download | ffmpeg-ba150051322c02e24c004bd5309468886e1e5ab6.tar.gz | |
avcodec/wavpack: Fix runtime error: left shift of negative value -2
Fixes: 723/clusterfuzz-testcase-6471394663596032
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/wavpack.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index bf538a9b87..a4ba07fc83 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -745,13 +745,13 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no, } for (i = 0; i < weights; i++) { t = (int8_t)bytestream2_get_byte(&gb); - s->decorr[s->terms - i - 1].weightA = t << 3; + s->decorr[s->terms - i - 1].weightA = t * (1 << 3); if (s->decorr[s->terms - i - 1].weightA > 0) s->decorr[s->terms - i - 1].weightA += (s->decorr[s->terms - i - 1].weightA + 64) >> 7; if (s->stereo_in) { t = (int8_t)bytestream2_get_byte(&gb); - s->decorr[s->terms - i - 1].weightB = t << 3; + s->decorr[s->terms - i - 1].weightB = t * (1 << 3); if (s->decorr[s->terms - i - 1].weightB > 0) s->decorr[s->terms - i - 1].weightB += (s->decorr[s->terms - i - 1].weightB + 64) >> 7; |