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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-02-13 20:56:56 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-01 12:49:26 +0200 |
| commit | efe50a9ce1d9205fcaf985cd5009322132570b61 (patch) | |
| tree | 1fab138c2d68d22af907bd2c61b7b3a39c1998e1 | |
| parent | 5be59bb8a1de1ba6d166c11fed86fef54254095d (diff) | |
| download | ffmpeg-efe50a9ce1d9205fcaf985cd5009322132570b61.tar.gz | |
avcodec/dstdec: Check sample rate
Fixes: out of array access
Fixes: 20659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5735812071424000
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5727b1f13f36c4db30d5d0de51640f740edf01e8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dstdec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/dstdec.c b/libavcodec/dstdec.c index b70e0d27ec..d8f80bd114 100644 --- a/libavcodec/dstdec.c +++ b/libavcodec/dstdec.c @@ -85,6 +85,10 @@ static av_cold int decode_init(AVCodecContext *avctx) return AVERROR_PATCHWELCOME; } + if (DST_SAMPLES_PER_FRAME(avctx->sample_rate) & 7) { + return AVERROR_PATCHWELCOME; + } + avctx->sample_fmt = AV_SAMPLE_FMT_FLT; for (i = 0; i < avctx->channels; i++) |