From 87dc8b3af9135f0cfcdf3c0520e3f29e7b0d92c6 Mon Sep 17 00:00:00 2001 From: Justin Jacobs Date: Wed, 6 Aug 2014 20:04:38 -0400 Subject: [PATCH] avformat/matroskadec: Check avpriv_new_chapter() for failure Fixes null pointer dereference Signed-off-by: Michael Niedermayer --- libavformat/matroskadec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index dbec9ee18c..31ee4567aa 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -2161,8 +2161,10 @@ static int matroska_read_header(AVFormatContext *s) (AVRational) { 1, 1000000000 }, chapters[i].start, chapters[i].end, chapters[i].title); - av_dict_set(&chapters[i].chapter->metadata, - "title", chapters[i].title, 0); + if (chapters[i].chapter) { + av_dict_set(&chapters[i].chapter->metadata, + "title", chapters[i].title, 0); + } max_start = chapters[i].start; }