diff options
| author | Michael Niedermayer <[email protected]> | 2017-05-12 13:13:46 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2017-05-17 20:35:20 +0200 |
| commit | 43965feca7d328b1c6f1c12e17ba6cb9623f8291 (patch) | |
| tree | 1c98fb6290b6b1ae897f4ea81c63634a9cb7d9d1 | |
| parent | 188e015c7b4bc78b515bc4171cbfd1d03836ab86 (diff) | |
avcodec/g723_1dec: Fix runtime error: left shift of negative value -1
Fixes: 1504/clusterfuzz-testcase-minimized-6249212138225664
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit c4c0245686bc2fcc545644101c7b328fed71f268)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/g723_1dec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/g723_1dec.c b/libavcodec/g723_1dec.c index 735d0360b7..5f0d625eec 100644 --- a/libavcodec/g723_1dec.c +++ b/libavcodec/g723_1dec.c @@ -694,13 +694,13 @@ static int estimate_sid_gain(G723_1_Context *p) if (y <= 0) { t = seg * 32 + (val + 1 << seg2); t = t * t - x; - val = (seg2 - 1 << 4) + val; + val = (seg2 - 1) * 16 + val; if (t >= y) val++; } else { t = seg * 32 + (val - 1 << seg2); t = t * t - x; - val = (seg2 - 1 << 4) + val; + val = (seg2 - 1) * 16 + val; if (t >= y) val--; } |