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avcodec/diracdec: Propagate errors from dirac_get_arith_uint()

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Testcase: 11663/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5636791864918016

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 2019-01-08 23:29:38 +01:00
parent 6dde65d7c0
commit 6ed3d0e01c
3 changed files with 5 additions and 0 deletions
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libavcodec/dirac_arith.c
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@ -115,6 +115,7 @@ void ff_dirac_init_arith_decoder(DiracArith *c, GetBitContext *gb, int length)
c->counter = -16;
c->range = 0xffff;
c->error = 0;
for (i = 0; i < DIRAC_CTX_COUNT; i++)
c->contexts[i] = 0x8000;