From d712a2f4b7e1705ac879aff30b11a807d88bdd54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim@centricular.com>
Date: Mon, 3 Jul 2017 20:27:29 +0100
Subject: [PATCH] imagefreeze: fix use-after-free on seek event

Get seqnum before unreffing the seek event.

https://bugzilla.gnome.org/show_bug.cgi?id=784486
---
 gst/imagefreeze/gstimagefreeze.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gst/imagefreeze/gstimagefreeze.c b/gst/imagefreeze/gstimagefreeze.c
index b3ab9c061f..a4e381cd45 100644
--- a/gst/imagefreeze/gstimagefreeze.c
+++ b/gst/imagefreeze/gstimagefreeze.c
@@ -573,6 +573,7 @@ gst_image_freeze_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
       gboolean flush;
       guint32 seqnum;
 
+      seqnum = gst_event_get_seqnum (event);
       gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
           &stop_type, &stop);
       gst_event_unref (event);
@@ -600,7 +601,6 @@ gst_image_freeze_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
         }
       }
 
-      seqnum = gst_event_get_seqnum (event);
       if (flush) {
         GstEvent *e;