ffmpeg | branch: release/3.2 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Mar 10 23:24:49 2022 +0100| [aee90d406464baf25ee1dfbf0d3b2a2530d2f61d] | committer: Michael Niedermayer
avformat/matroskadec: Use rounded down duration in get_cue_desc() check Floating point is evil, it would be better if duration was not a double Fixes: Infinite loop Fixes: 45123/clusterfuzz-testcase-minimized-ffmpeg_dem_WEBM_DASH_MANIFEST_fuzzer-6725052291219456 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit bd3a03db9aef72ee36a7cc964171e9f52967f4bc) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=aee90d406464baf25ee1dfbf0d3b2a2530d2f61d --- libavformat/matroskadec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 6344f06282..68c1c7024b 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -3495,7 +3495,9 @@ static CueDesc get_cue_desc(AVFormatContext *s, int64_t ts, int64_t cues_start) int i; int nb_index_entries = s->streams[0]->nb_index_entries; AVIndexEntry *index_entries = s->streams[0]->index_entries; - if (ts >= matroska->duration * matroska->time_scale) return (CueDesc) {-1, -1, -1, -1}; + + if (ts >= (int64_t)(matroska->duration * matroska->time_scale)) + return (CueDesc) {-1, -1, -1, -1}; for (i = 1; i < nb_index_entries; i++) { if (index_entries[i - 1].timestamp * matroska->time_scale <= ts && index_entries[i].timestamp * matroska->time_scale > ts) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
