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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-01-23 00:30:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-21 10:42:51 +0100 |
| commit | c600c06af96e7cadae6b77e54b220c1c2a240a80 (patch) | |
| tree | 334dad62fa9d291188074c4c0e6397cb33b1c2a5 | |
| parent | fcfa104b0e0521dfdb8e5d3d07b81f7552d00b2b (diff) | |
| download | ffmpeg-c600c06af96e7cadae6b77e54b220c1c2a240a80.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 0b491ef7de..b7b834596b 100644 --- a/libavcodec/fic.c +++ b/libavcodec/fic.c @@ -139,6 +139,9 @@ 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)) { *is_p = 1; |