Fixes: null pointer dereference
Fixes: 31588/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-6165716135968768
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
AVStream *st1 = s->streams[1];
AVIStream *ast1 = st1->priv_data;
// workaround for broken small-file-bug402.avi
- if ( d[2] == 'w' && d[3] == 'b'
+ if (ast1 && d[2] == 'w' && d[3] == 'b'
&& n == 0
&& st ->codecpar->codec_type == AVMEDIA_TYPE_VIDEO
&& st1->codecpar->codec_type == AVMEDIA_TYPE_AUDIO