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avcodec/diracdec: Check for arith decoder errors in dirac_unpack_block_motion_data()

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Fixes: Timeout (54sec -> 188ms)
Fixes: 14585/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5649933052411904

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 2019-05-12 19:43:08 +02:00
parent 8eecf761a6
commit 90db25a16e
1 changed files with 5 additions and 0 deletions
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5
libavcodec/diracdec.c
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@ -1551,6 +1551,11 @@ static int dirac_unpack_block_motion_data(DiracContext *s)
}
}
for (i = 0; i < 4 + 2*s->num_refs; i++) {
if (arith[i].error)
return arith[i].error;
}
return 0;
}