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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-08 21:25:13 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-03-09 20:37:10 +0100 |
| commit | 58dd25f8adb151a59971daa94d352d3226d2dbb6 (patch) | |
| tree | 8f7b82d59a75ad669ffb39d1f4578286e69190b3 | |
| parent | 5cd3cd5b6872eda1775aa2ddb34fc23ca03c6c85 (diff) | |
| download | ffmpeg-58dd25f8adb151a59971daa94d352d3226d2dbb6.tar.gz | |
avcodec/mpegaudiodec_template: Check for negative e
Fixes: undefined shift
Fixes: 631/clusterfuzz-testcase-6725491035734016
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mpegaudiodec_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mpegaudiodec_template.c b/libavcodec/mpegaudiodec_template.c index a3729a9e29..88f62727cb 100644 --- a/libavcodec/mpegaudiodec_template.c +++ b/libavcodec/mpegaudiodec_template.c @@ -251,7 +251,7 @@ static inline int l3_unscale(int value, int exponent) if(e < 1) av_log(NULL, AV_LOG_WARNING, "l3_unscale: e is %d\n", e); #endif - if (e > 31) + if (e > (SUINT)31) return 0; m = (m + (1 << (e - 1))) >> e; |