ip6_tunnel: better validate user provided tunnel names
authorEric Dumazet <edumazet@google.com>
Thu, 5 Apr 2018 13:39:30 +0000 (06:39 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Apr 2018 10:31:18 +0000 (12:31 +0200)
commit4fba1a669a9abaed5992c1cf5b3eac7b5ee84f2d
tree84ed2b1d8c9f079905685641cc61e116ade4749b
parentefcc90fcf90a045fdf7abf8506e07dd34f04e029
ip6_tunnel: better validate user provided tunnel names

[ Upstream commit db7a65e3ab78e5b1c4b17c0870ebee35a4ee3257 ]

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

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv6/ip6_tunnel.c