From e73c6aaabff1169899184c382385fe9afae5b068 Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rsbultje@gmail.com>
Date: Wed, 21 Mar 2012 16:10:37 -0700
Subject: [PATCH] asf: reset side data elements on packet copy.

Prevents crash (double free) when free()ing the original packet.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
---
 libavformat/asfdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 07899609c9..d3869b427b 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -1072,6 +1072,8 @@ static int ff_asf_parse_packet(AVFormatContext *s, AVIOContext *pb, AVPacket *pk
             //printf("packet %d %d\n", asf_st->pkt.size, asf->packet_frag_size);
             asf_st->pkt.size = 0;
             asf_st->pkt.data = 0;
+            asf_st->pkt.side_data_elems = 0;
+            asf_st->pkt.side_data = NULL;
             break; // packet completed
         }
     }