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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-25 17:49:15 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-15 12:25:46 +0100 |
| commit | da76ca55518e6c19beee3dfcaa2189c6fd21f061 (patch) | |
| tree | 21d993e5f40b2b39179db1a2de1aeff297bbb686 | |
| parent | 089b1e16770be2903b2a0c9fb3e394f5c64c3918 (diff) | |
| download | ffmpeg-da76ca55518e6c19beee3dfcaa2189c6fd21f061.tar.gz | |
avcodec/takdec: Fix integer overflow in decorrelate()
Fixes: signed integer overflow: -2424832 - 2145653689 cannot be represented in type 'int'
Fixes: 16138/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5643451346976768
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f1192736494a5b16717de66da4a3d3c6af0e9a7a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/takdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index 0439a3ac9b..4fb5825532 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -653,7 +653,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length) s->residues[i ] * s->filter[0]; } - v = av_clip_intp2(v >> 10, 13) * (1 << dshift) - *p1; + v = av_clip_intp2(v >> 10, 13) * (1U << dshift) - *p1; *p1++ = v; } |