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avcodec/tak: Check remaining bits in ff_tak_decode_frame_header()

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Fixes: out of array access
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-6682195323650048

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-04-16 17:34:16 +02:00
parent 2632e90493
commit 19b66b89da
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1 changed files with 3 additions and 0 deletions
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libavcodec/tak.c
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@ -175,6 +175,9 @@ int ff_tak_decode_frame_header(AVCodecContext *avctx, GetBitContext *gb,
if (ti->flags & TAK_FRAME_FLAG_HAS_METADATA) if (ti->flags & TAK_FRAME_FLAG_HAS_METADATA)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
if (get_bits_left(gb) < 24)
return AVERROR_INVALIDDATA;
skip_bits(gb, 24); skip_bits(gb, 24);
return 0; return 0;