tree ca428f394170c09015dc982c3371c04de0749c81
parent 9db273f45686218e055a3738f3311048cbb54fee
author Mathias Krause <minipli@googlemail.com> 1348054418 +0000
committer David S. Miller <davem@davemloft.net> 1348178919 -0400

xfrm_user: fix info leak in copy_to_user_auth()

copy_to_user_auth() fails to initialize the remainder of alg_name and
therefore discloses up to 54 bytes of heap memory via netlink to
userland.

Use strncpy() instead of strcpy() to fill the trailing bytes of alg_name
with null bytes.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>