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[PATCH] fs: don't forget to put old mntns in mntns_install

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  [PATCH] fs: don't forget to put old mntns in mntns_install Andrei Vagin <avagin@openvz.org> - 2017-06-09 02:40 +0200

#1661843 — [PATCH] fs: don't forget to put old mntns in mntns_install

Fixes: 4f757f3cbf54 ("make sure that mntns_install() doesn't end up with referral for root")
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrei Vagin <avagin@openvz.org>
---
 fs/namespace.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/namespace.c b/fs/namespace.c
index 8bd3e4d..5a44384 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3488,6 +3488,8 @@ static int mntns_install(struct nsproxy *nsproxy, struct ns_common *ns)
 		return err;
 	}
 
+	put_mnt_ns(old_mnt_ns);
+
 	/* Update the pwd and root */
 	set_fs_pwd(fs, &root);
 	set_fs_root(fs, &root);
-- 
2.9.4

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