On Mon, Mar 21, 2022 at 09:40:46AM +0800, Steven Liu wrote: > Michael Niedermayer <mich...@niedermayer.cc> 于2022年3月21日周一 07:31写道： > > > > Fixes: signed integer overflow: 77777777777777 * 1000000 cannot be > > represented in type 'long long' > > Fixes: > > 45545/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-6438101247983616 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavformat/hls.c | 8 +++++++- > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/libavformat/hls.c b/libavformat/hls.c > > index cf6ef9dfb6..a58c558ffe 100644 > > --- a/libavformat/hls.c > > +++ b/libavformat/hls.c > > @@ -819,10 +819,16 @@ static int parse_playlist(HLSContext *c, const char > > *url, > > &info); > > new_rendition(c, &info, url); > > } else if (av_strstart(line, "#EXT-X-TARGETDURATION:", &ptr)) { > > + int64_t t; > > ret = ensure_playlist(c, &pls, url); > > if (ret < 0) > > goto fail; > > - pls->target_duration = strtoll(ptr, NULL, 10) * AV_TIME_BASE; > > + t = strtoll(ptr, NULL, 10); > > + if (t < 0 || t >= INT64_MAX / AV_TIME_BASE) { > > + ret = AVERROR_INVALIDDATA; > > + goto fail; > > + } > > + pls->target_duration = t * AV_TIME_BASE; > > } else if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) { > > uint64_t seq_no; > > ret = ensure_playlist(c, &pls, url); > > -- > > 2.17.1 > > > > _______________________________________________ > > ffmpeg-devel mailing list > > ffmpeg-devel@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > To unsubscribe, visit link above, or email > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > > > lgtm
will apply thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Dictatorship: All citizens are under surveillance, all their steps and actions recorded, for the politicians to enforce control. Democracy: All politicians are under surveillance, all their steps and actions recorded, for the citizens to enforce control.
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