From c1ed78a591f68f3c81eded0bfaac313937ffa3b6 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 28 May 2016 23:51:35 +0200 Subject: [PATCH] avformat/utils: avoid overflow in compute_chapters_end() with huge durations Fixes: usan_granule_overflow Found-by: Thomas Guilbert Signed-off-by: Michael Niedermayer --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index 4ccc5f5cfa..47f5ba0b11 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -3041,7 +3041,7 @@ static void compute_chapters_end(AVFormatContext *s) unsigned int i, j; int64_t max_time = 0; - if (s->duration > 0) + if (s->duration > 0 && s->start_time < INT64_MAX - s->duration) max_time = s->duration + ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time);