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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-25 21:07:25 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-17 20:35:19 +0200 |
| commit | 6da1353a5aa3a67bfe3f776197af332511cf69a6 (patch) | |
| tree | 469b90270eda87c8fc134e8303df6de9ba4db6db | |
| parent | 89ffe4e0e0000c98a7b179dfe2f2f1276d71cd11 (diff) | |
| download | ffmpeg-6da1353a5aa3a67bfe3f776197af332511cf69a6.tar.gz | |
avcodec/eac3dec: Fix runtime error: left shift of negative value -3
Fixes: 672/clusterfuzz-testcase-5595018867769344
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 87eb3749708c0eb2978f4812c7be2a4af667fdb7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/eac3dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/eac3dec.c b/libavcodec/eac3dec.c index caa5e2eaf5..001a404389 100644 --- a/libavcodec/eac3dec.c +++ b/libavcodec/eac3dec.c @@ -280,7 +280,7 @@ static void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch) mant += ((ff_eac3_gaq_remap_2_4_a[hebap-8][log_gain-1] * (int64_t)mant) >> 15) + b; } else { /* small mantissa, no GAQ, or Gk=1 */ - mant <<= 24 - bits; + mant *= (1 << 24 - bits); if (!log_gain) { /* remap mantissa value for no GAQ or Gk=1 */ mant += (ff_eac3_gaq_remap_1[hebap-8] * (int64_t)mant) >> 15; |