From: Li RongQing <lirongqing@baidu.com>
Date: Sun, 30 Sep 2018 07:06:06 +0000 (+0800)
Subject: xfrm: fix gro_cells leak when remove virtual xfrm interfaces
X-Git-Tag: v4.19~18^2~5^2~3
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=4da402597c2b75c4b636ab2416baf921b363b325;p=uclinux-h8%2Flinux.git

xfrm: fix gro_cells leak when remove virtual xfrm interfaces

The device gro_cells has been initialized, it should be freed,
otherwise it will be leaked

Fixes: f203b76d78092faf2 ("xfrm: Add virtual xfrm interfaces")
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---

diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index 31acc6f33d98..6f05e831a73e 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -116,6 +116,9 @@ static void xfrmi_unlink(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
 
 static void xfrmi_dev_free(struct net_device *dev)
 {
+	struct xfrm_if *xi = netdev_priv(dev);
+
+	gro_cells_destroy(&xi->gro_cells);
 	free_percpu(dev->tstats);
 }