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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-04-24 00:15:04 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-01 00:48:32 +0200 |
| commit | e734e165442b4bf1598b167c373928d993371f0d (patch) | |
| tree | d7d0d36a5b1a159788f7eac406ef09831e8de4ca /libavcodec/cavsdec.c | |
| parent | f6dffe6fc4d872b371e330447e77576ffc939220 (diff) | |
| download | ffmpeg-e734e165442b4bf1598b167c373928d993371f0d.tar.gz | |
avcodec/cavsdec: Check bits left before picture allocation
Fixes: Timeout
Fixes: 57893/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CAVS_fuzzer-5091726540013568
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/cavsdec.c')
| -rw-r--r-- | libavcodec/cavsdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c index b1fa9a981d..37071dfbc7 100644 --- a/libavcodec/cavsdec.c +++ b/libavcodec/cavsdec.c @@ -1020,6 +1020,9 @@ static int decode_pic(AVSContext *h) skip_bits(&h->gb, 1); //marker_bit } + if (get_bits_left(&h->gb) < 23) + return AVERROR_INVALIDDATA; + ret = ff_get_buffer(h->avctx, h->cur.f, h->cur.f->pict_type == AV_PICTURE_TYPE_B ? 0 : AV_GET_BUFFER_FLAG_REF); if (ret < 0) |