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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-09-30 00:44:31 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-10-04 23:47:54 +0200 |
| commit | f1f78e3cf4da658225067d9ef35cdb25541e5fe2 (patch) | |
| tree | c433fcc2d31f70d9797f3abd20d2d3875d14325a | |
| parent | 77164b2344eb67d61f973ebbbc8e0b88aaae027b (diff) | |
| download | ffmpeg-f1f78e3cf4da658225067d9ef35cdb25541e5fe2.tar.gz | |
avcodec/mlpdec: add max channels check
Fixes: out of array access
Fixes: 51648/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEHD_fuzzer-4644322217164800
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/mlpdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c index 635f92895c..0b0eb75990 100644 --- a/libavcodec/mlpdec.c +++ b/libavcodec/mlpdec.c @@ -547,6 +547,9 @@ static int read_restart_header(MLPDecodeContext *m, GetBitContext *gbp, return AVERROR_PATCHWELCOME; } + if (max_channel + 1 > MAX_CHANNELS || max_channel + 1 < min_channel) + return AVERROR_INVALIDDATA; + s->min_channel = min_channel; s->max_channel = max_channel; s->coded_channels = ((1LL << (max_channel - min_channel + 1)) - 1) << min_channel; |