Michael Niedermayer 72db18e929 avformat/utils: Do not assume duration is non negative in compute_pkt_fields() ...

Several subtitle demuxers set negative durations

Fixes: signed integer overflow: 9223372036854775807 - -1 cannot be represented in type 'long'
Fixes: 16925/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5766519790764032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

2019-09-24 17:53:39 +02:00

200 KiB

Raw Blame History

View Raw