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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-23 00:30:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-24 10:39:03 +0100 |
| commit | 20337eb1068049692f0c1f9c8a924ca127cdae77 (patch) | |
| tree | 825129412f118aaeedf448ca7fd764eb4497d8d7 | |
| parent | 8ea2558ab7b82163fa018fa9076dcf536b55b103 (diff) | |
| download | ffmpeg-20337eb1068049692f0c1f9c8a924ca127cdae77.tar.gz | |
avcodec/fic: Check that there is input left in fic_decode_block()
Fixes: Timeout
Fixes: 12450/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5661984622641152
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 db1c4acd02af4de5dfbea6012c296470679aa7a6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/fic.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/fic.c b/libavcodec/fic.c index 8c4c4814db..d94b1dba64 100644 --- a/libavcodec/fic.c +++ b/libavcodec/fic.c @@ -138,6 +138,9 @@ static int fic_decode_block(FICContext *ctx, GetBitContext *gb, { int i, num_coeff; + if (get_bits_left(gb) < 8) + return AVERROR_INVALIDDATA; + /* Is it a skip block? */ if (get_bits1(gb)) { /* This is a P-frame. */ |