avcodec/fmvc: Check if header fields are available before allocating the image
authorMichael Niedermayer <michael@niedermayer.cc>
Sun, 2 Jun 2019 21:16:40 +0000 (23:16 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Fri, 21 Jun 2019 16:28:00 +0000 (18:28 +0200)
commit561cc161ca617c1b8d48fef0f02d56c0f1af0486
tree0105cabe0e5a0ce54fead745afe6fe1d9a486c47
parentdd8720045cdc46536c7a13f091aaf4ddea93e048
avcodec/fmvc: Check if header fields are available before allocating the image

Fixes: Timeout (15sec -> 0.5sec)
Fixes: 14846/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FMVC_fuzzer-5068322120400896

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>
libavcodec/fmvc.c