avcodec/vc1_block: fix invalid shift in vc1_decode_p_mb()
authorMichael Niedermayer <michael@niedermayer.cc>
Sat, 22 Jun 2019 10:35:24 +0000 (12:35 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Sun, 11 Aug 2019 17:13:21 +0000 (19:13 +0200)
commitb153ba1c2e03d3148766a3ebf0e9c485197f30de
tree4652cb8193c75ac1e8ae968eb42a40f052555291
parentda93e2b14218c4ab0fda60e21882a4633aac5748
avcodec/vc1_block: fix invalid shift in vc1_decode_p_mb()

Fixes: left shift of negative value -5
Fixes: 15294/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5733921754447872

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