avcodec/h263dec: Check slice_ret in mspeg4 slice loop
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 22 Apr 2018 19:07:45 +0000 (21:07 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 16 Jul 2018 17:06:26 +0000 (19:06 +0200)
commit69f861be42ecb07e1deac86757760ec36a8e7bef
tree4702ab30f1e718afdb043301ae5ff8940ea0b217
parent3d29170013b1e28770082d660e8695fe26ba4e2f
avcodec/h263dec: Check slice_ret in mspeg4 slice loop

Fixes infinite loop
Fixes: 6858/clusterfuzz-testcase-ffmpeg_AV_CODEC_ID_MSMPEG4V3_fuzzer-4681563766784000
Fixes: 6890/clusterfuzz-testcase-ffmpeg_AV_CODEC_ID_WMV1_fuzzer-4756103142309888

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 de841fbea7655b74a9663001e01008a86c88779a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/h263dec.c