vti6: better validate user provided tunnel names
authorEric Dumazet <edumazet@google.com>
Thu, 5 Apr 2018 13:39:31 +0000 (06:39 -0700)
committerSasha Levin <alexander.levin@microsoft.com>
Wed, 23 May 2018 01:36:31 +0000 (21:36 -0400)
commit6330e7a117244c6dc68374089566a0cdb446186d
treee368caa3435c453ecf5366ea9b7d8d22f1ceb20f
parent8a7a2e3697bd54254d872f319244198f03efba86
vti6: better validate user provided tunnel names

[ Upstream commit 537b361fbcbcc3cd6fe2bb47069fd292b9256d16 ]

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

Fixes: ed1efb2aefbb ("ipv6: Add support for IPsec virtual tunnel interfaces")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
net/ipv6/ip6_vti.c