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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-04-16 17:34:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-26 14:45:28 +0200 |
| commit | bb34d18e33e17c15f9188b7d2a587d85ee5166c8 (patch) | |
| tree | 819e609978fba85a91003ec4cf7be4274cf33a61 | |
| parent | 1cf4afaeab9d192154de7bdd484683c3cbd38f41 (diff) | |
| download | ffmpeg-bb34d18e33e17c15f9188b7d2a587d85ee5166c8.tar.gz | |
avcodec/tak: Check remaining bits in ff_tak_decode_frame_header()
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>
(cherry picked from commit 19b66b89da4b4ff086dc1fc79bbf540e82bdbcb4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/tak.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/tak.c b/libavcodec/tak.c index 8aa956b661..7989afbd97 100644 --- a/libavcodec/tak.c +++ b/libavcodec/tak.c @@ -167,6 +167,9 @@ int ff_tak_decode_frame_header(AVCodecContext *avctx, GetBitContext *gb, if (ti->flags & TAK_FRAME_FLAG_HAS_METADATA) return AVERROR_INVALIDDATA; + if (get_bits_left(gb) < 24) + return AVERROR_INVALIDDATA; + skip_bits(gb, 24); return 0; |