avcodec/siren: Check several indexes

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Fixes: Multiple out of array accesses
Fixes: 20817/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SIREN_fuzzer-5754041227542528.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

pull/334/head

Michael Niedermayer 5 years ago

parent 60b1f85b67

commit 12ec8ad24b

1 changed files with 11 additions and 4 deletions

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