avcodec/vc1_block: Check for double escapes
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 15 Aug 2019 16:47:54 +0000 (18:47 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Wed, 4 Sep 2019 18:26:35 +0000 (20:26 +0200)
commit7edcd88a3f74182bdc28dc29bd903c6c22c3c9d8
tree5d8f5783f07057583c15d6f10013ccb1724c2679
parent948e655d133a1f2d5ca7cdcda6f570fcad0fbcc7
avcodec/vc1_block: Check for double escapes

Fixes: out of array read
Fixes: 16331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5672735195267072

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6962fd586e1a9a98828866dcfb4114af30c8c756)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/vc1_block.c