Fixes: signed integer overflow: -5 - 9223372036854775807 cannot be represented in type 'long' Fixes: 45665/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-475618463934054
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/aqtitledec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavformat/aqtitledec.c b/libavformat/aqtitledec.c index a37c9bbeaf..6c14b23862 100644 --- a/libavformat/aqtitledec.c +++ b/libavformat/aqtitledec.c @@ -74,7 +74,8 @@ static int aqt_read_header(AVFormatContext *s) new_event = 1; pos = avio_tell(s->pb); if (sub) { - sub->duration = frame - sub->pts; + if (frame >= sub->pts && (uint64_t)frame - sub->pts < INT64_MAX) + sub->duration = frame - sub->pts; sub = NULL; } } else if (*line) { -- 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".
