avcodec/vc1_block: Check get_vlc2() return before use
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 4 Aug 2019 06:32:58 +0000 (08:32 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 5 Aug 2019 15:50:27 +0000 (17:50 +0200)
commit2cb1f797350875ec45cb20d59dc0684fcbac20fc
tree4c77f19cbe167dd996846f6c21b87ba89ad0bc57
parent8e4b522c9146b9c14579ae7381fb1043b7423578
avcodec/vc1_block: Check get_vlc2() return before use

Fixes: index -1 out of bounds for type 'const uint8_t [185][2]'
Fixes: 15720/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MSS2_fuzzer-5666071933091840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/vc1_block.c