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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-02 15:23:31 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-08 20:32:01 +0100 |
| commit | c26c8bb23a51cf6392b3a825ca48b8bd4c87b582 (patch) | |
| tree | aa392dacb15639c718def711c5822af06bf97e76 | |
| parent | e23768b8ffc3d17af1c0cac33ea9c8b3a6a50437 (diff) | |
| download | ffmpeg-c26c8bb23a51cf6392b3a825ca48b8bd4c87b582.tar.gz | |
avcodec/dca_lbr: Fix off by 1 error in freq check
Fixes out of array read
Fixes: 510/clusterfuzz-testcase-5737865715646464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 61f70416f8542cc86c84ae6e0342ba10a35d7cba)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dca_lbr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dca_lbr.c b/libavcodec/dca_lbr.c index 342603c7d4..56c5f40982 100644 --- a/libavcodec/dca_lbr.c +++ b/libavcodec/dca_lbr.c @@ -310,7 +310,7 @@ static int parse_tonal(DCALbrDecoder *s, int group) break; // End of subframe freq += diff - 2; - if (freq >> (5 - group) > s->nsubbands * 4 - 5) { + if (freq >> (5 - group) > s->nsubbands * 4 - 6) { av_log(s->avctx, AV_LOG_ERROR, "Invalid spectral line offset\n"); return -1; } |