From 09401d0a0abec4d1db395af3ddb2c610c5b51153 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 3 Jul 2018 21:37:46 +0200
Subject: [PATCH] avformat/rmdec: Do not pass mime type in rm_read_multi() to
 ff_rm_read_mdpr_codecdata()

Fixes: use after free()
Fixes: rmdec-crash-ffe85b4cab1597d1cfea6955705e53f1f5c8a362

Found-by: Paul Ch <paulcher@icloud.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a7e032a277452366771951e29fd0bf2bd5c029f0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/rmdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index d6d7d9cd84..3eb49a5d29 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -526,7 +526,7 @@ static int rm_read_multi(AVFormatContext *s, AVIOContext *pb,
 
         size2 = avio_rb32(pb);
         ret = ff_rm_read_mdpr_codecdata(s, s->pb, st2, st2->priv_data,
-                                        size2, mime);
+                                        size2, NULL);
         if (ret < 0)
             return ret;
     }