Patch "vti6: better validate user provided tunnel names" has been added to the 4.16-stable tree

This is a note to let you know that I've just added the patch titled

vti6: better validate user provided tunnel names

to the 4.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
vti6-better-validate-user-provided-tunnel-names.patch
and it can be found in the queue-4.16 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Eric Dumazet <[email protected]>
Date: Thu, 5 Apr 2018 06:39:31 -0700
Subject: vti6: better validate user provided tunnel names

From: Eric Dumazet <[email protected]>

[ Upstream commit 537b361fbcbcc3cd6fe2bb47069fd292b9256d16 ]

Use valid_name() to make sure user does not provide illegal device name.

---
 net/ipv6/ip6_vti.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

@@ -212,10 +212,13 @@ static struct ip6_tnl *vti6_tnl_create(s
 	char name[IFNAMSIZ];
 	int err;
 
-	if (p->name[0])
+	if (p->name[0]) {
+		if (!dev_valid_name(p->name))
+			goto failed;
 		strlcpy(name, p->name, IFNAMSIZ);
-	else
+	} else {
 		sprintf(name, "ip6_vti%%d");
+	}
 
 	dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN, vti6_dev_setup);
 	if (!dev)

Patches currently in stable-queue which might be from [email protected] are

queue-4.16/sctp-sctp_sockaddr_af-must-check-minimal-addr-length-for-af_inet6.patch queue-4.16/pptp-remove-a-buggy-dst-release-in-pptp_connect.patch queue-4.16/net-fool-proof-dev_valid_name.patch queue-4.16/vti6-better-validate-user-provided-tunnel-names.patch queue-4.16/ipv6-sit-better-validate-user-provided-tunnel-names.patch queue-4.16/ip6_tunnel-better-validate-user-provided-tunnel-names.patch queue-4.16/sctp-do-not-leak-kernel-memory-to-user-space.patch queue-4.16/ip_tunnel-better-validate-user-provided-tunnel-names.patch queue-4.16/ip6_gre-better-validate-user-provided-tunnel-names.patch