ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Sat Mar 1 23:51:25 2025 -0300| [25c439296ba1e835599370de331f9a089f7efe37] | committer: James Almer
avformat/mov: fix overflow in corrected_dts calculation Fixes: Integer-overflow Fixes: 400093647/clusterfuzz-testcase-minimized-media_metadata_parser_fuzzer-4794341562187776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=25c439296ba1e835599370de331f9a089f7efe37 --- libavformat/mov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index ee44b10435..57d9364ea2 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3539,7 +3539,7 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom) av_log(c->fc, AV_LOG_WARNING, "Too large sample offset %u in stts entry %u with count %u in st:%d. Clipping to 1.\n", sample_duration, i, sample_count, st->index); sc->stts_data[i].duration = 1; - corrected_dts += (delta_magnitude < 0 ? (int64_t)delta_magnitude : 1) * sample_count; + corrected_dts = av_sat_add64(corrected_dts, (delta_magnitude < 0 ? (int64_t)delta_magnitude : 1) * sample_count); } else { corrected_dts += sample_duration * (uint64_t)sample_count; } _______________________________________________ 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".
