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avformat/sbgdec: clamp end_ts 

Fixes: signed integer overflow: 9223372036851135042 + 15666854 cannot be represented in type 'long'
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_SBG_fuzzer-6573717339111424

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-09-18 16:29:37 +02:00
parent 2cb7ee8a36
commit 981f5e46af
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1 changed files with 1 additions and 1 deletions
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libavformat/sbgdec.c
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@ -1478,7 +1478,7 @@ static int sbg_read_packet(AVFormatContext *avf, AVPacket *packet)
int ret;
ts = ffstream(avf->streams[0])->cur_dts;
end_ts = ts + avf->streams[0]->codecpar->frame_size;
end_ts = av_sat_add64(ts, avf->streams[0]->codecpar->frame_size);
if (avf->streams[0]->duration != AV_NOPTS_VALUE)
end_ts = FFMIN(avf->streams[0]->start_time + avf->streams[0]->duration,
end_ts);