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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-02 21:23:18 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-08-03 12:05:37 +0200 |
| commit | 58c7f419ce757c3c741d6071e0dafcba7d875567 (patch) | |
| tree | 593632d2ac3804f3ab080e2de682a623115f9800 | |
| parent | b4bf7226aff28e9ca379c5a3dedf745a2d316739 (diff) | |
| download | ffmpeg-58c7f419ce757c3c741d6071e0dafcba7d875567.tar.gz | |
avcodec/vp3: Check for end of input in vp4_unpack_vlcs()
Fixes: Timeout (too long -> 1sec)
Fixes: 15232/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VP3_fuzzer-5769583086010368
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/vp3.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index 6ce901eda9..28ed0461c7 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -1403,6 +1403,8 @@ static int vp4_unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb, int eob_run; while (!eob_tracker[coeff_i]) { + if (get_bits_left(gb) < 1) + return AVERROR_INVALIDDATA; token = get_vlc2(gb, vlc_tables[coeff_i]->table, 11, 3); |