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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-20 23:13:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-10-09 22:15:35 +0200 |
| commit | 12794ff1e49bc409f668484840b721871ab9bca6 (patch) | |
| tree | 568f6ba0bb78bbe62f1054f70233cf4717f6b5af | |
| parent | dc4d0f630bcd6f0654e633851176aeb1633ef711 (diff) | |
| download | ffmpeg-12794ff1e49bc409f668484840b721871ab9bca6.tar.gz | |
avformat/asfdec_f: Check packet_frag_timestamp
Fixes: signed integer overflow: -9223372036854775808 - 4607 cannot be represented in type 'long'
Fixes: 45685/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5280102802391040
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 ffc877215056e8f0feb1ff23ba7dc4c19277b94b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/asfdec_f.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libavformat/asfdec_f.c b/libavformat/asfdec_f.c index 81bf9d83e9..2d7c0a7a5e 100644 --- a/libavformat/asfdec_f.c +++ b/libavformat/asfdec_f.c @@ -1315,10 +1315,12 @@ static int asf_parse_packet(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt) if ((ret = av_new_packet(&asf_st->pkt, asf_st->packet_obj_size)) < 0) return ret; asf_st->seq = asf->packet_seq; - if (asf->ts_is_pts) { - asf_st->pkt.pts = asf->packet_frag_timestamp - asf->hdr.preroll; - } else - asf_st->pkt.dts = asf->packet_frag_timestamp - asf->hdr.preroll; + if (asf->packet_frag_timestamp != AV_NOPTS_VALUE) { + if (asf->ts_is_pts) { + asf_st->pkt.pts = asf->packet_frag_timestamp - asf->hdr.preroll; + } else + asf_st->pkt.dts = asf->packet_frag_timestamp - asf->hdr.preroll; + } asf_st->pkt.stream_index = asf->stream_index; asf_st->pkt.pos = asf_st->packet_pos = asf->packet_pos; asf_st->pkt_clean = 0; |