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commit 56e8d17d9bcd0676f4171ac203d09ecc8a1901b5 Author: Dale Curtis <[email protected]> AuthorDate: Thu Apr 30 21:01:33 2026 +0000 Commit: Michael Niedermayer <[email protected]> CommitDate: Sun Jun 14 04:40:49 2026 +0200 avformat/mov: Fix negative index given to can_seek_to_key_sample() The potentially negative return value of av_index_search_timestamp() wasn't being handled before passing it to can_seek_to_key_sample(). Found by Wongi Lee (@_qwerty_po) of Theori with Xint Code, Jungwoo Lee (@physicube). Signed-off-by: Dale Curtis <[email protected]> (cherry picked from commit 256d93413f260e1524c2ab994dc72c4edaa0d04c) Signed-off-by: Michael Niedermayer <[email protected]> --- libavformat/mov.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index d99977de1f..468715719f 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -11584,6 +11584,7 @@ static int can_seek_to_key_sample(AVStream *st, int sample, int64_t requested_pt if (sample >= sc->sample_offsets_count) return 1; + av_assert0(sample >= 0); key_sample_dts = sti->index_entries[sample].timestamp; key_sample_pts = key_sample_dts + sc->sample_offsets[sample] + sc->dts_shift; @@ -11627,6 +11628,8 @@ static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, next_ts = timestamp - FFMAX(sc->min_sample_duration, 1); requested_sample = av_index_search_timestamp(st, next_ts, flags); + if (requested_sample < 0) + return AVERROR_INVALIDDATA; // If we've reached a different sample trying to find a good pts to // seek to, give up searching because we'll end up seeking back to _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
