From 016cac75c6061a1c03f812ddf258b8baefe70b00 Mon Sep 17 00:00:00 2001
From: Alexandra Hájková <alexandra.khirnova@gmail.com>
Date: Thu, 2 Jul 2015 14:17:20 +0200
Subject: asfdec: prevent the infinite loop in detect unknown_subobject

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
---
 libavformat/asfdec.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libavformat/asfdec.c')

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index f2dd489b99..9989b8073c 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -1591,6 +1591,8 @@ static int detect_unknown_subobject(AVFormatContext *s, int64_t offset, int64_t
     int ret;
 
     while (avio_tell(pb) <= offset + size) {
+        if (avio_tell(pb) == asf->offset)
+            break;
         asf->offset = avio_tell(pb);
         if ((ret = ff_get_guid(pb, &guid)) < 0)
             return ret;
-- 
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