diff options
| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2014-11-27 10:16:15 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-16 09:37:10 -0800 |
| commit | 3e66aad18b516bd6c2b317cd8f01537ae59aa957 (patch) | |
| tree | 1730001a096c00d70fa5d33c10ab2a8e3de08040 | |
| parent | 54e673fc73b6008bc3569d63e92903ef11675e24 (diff) | |
rtnetlink: release net refcnt on error in do_setlink()
[ Upstream commit e0ebde0e131b529fd721b24f62872def5ec3718c ]
rtnl_link_get_net() holds a reference on the 'struct net', we need to release
it in case of error.
CC: Eric W. Biederman <ebiederm@xmission.com>
Fixes: b51642f6d77b ("net: Enable a userns root rtnl calls that are safe for unprivilged users")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/core/rtnetlink.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index f0493e3b7471..4921b6536ea5 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1495,6 +1495,7 @@ static int do_setlink(const struct sk_buff *skb, goto errout; } if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { + put_net(net); err = -EPERM; goto errout; } |