diff options
| author | Michael Niedermayer <[email protected]> | 2019-10-26 21:56:03 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2019-12-31 19:51:56 +0100 |
| commit | 99243eea7b608472a2bcc8377a1862cc8fe62802 (patch) | |
| tree | 5896f2bcf300c730dd787669cddd4ed86cb65afe | |
| parent | 87e8bfeb908c94deb5616065af53712efb3704ce (diff) | |
avcodec/g723_1dec: fix invalid shift with negative sid_gain
Fixes: left shift of negative value -1
Fixes: 18395/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5710313034350592
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <[email protected]>
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 1850c3feaa1c7b5b63a55c61075029fa59c84e66)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/g723_1dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/g723_1dec.c b/libavcodec/g723_1dec.c index d3eea2d5d7..802a2cbc16 100644 --- a/libavcodec/g723_1dec.c +++ b/libavcodec/g723_1dec.c @@ -677,7 +677,7 @@ static int estimate_sid_gain(G723_1_ChannelContext *p) if (p->sid_gain < 0) t = INT32_MIN; else t = INT32_MAX; } else - t = p->sid_gain << shift; + t = p->sid_gain * (1 << shift); } else if(shift < -31) { t = (p->sid_gain < 0) ? -1 : 0; }else |