raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-06 18:09:56 +00:00
Code Issues Projects Releases Wiki Activity

rtnetlink: release net refcnt on error in do_setlink()

Browse Source 
[ Upstream commit e0ebde0e13 ]

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: b51642f6d7 ("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>
This commit is contained in:
Nicolas Dichtel
2014-11-27 10:16:15 +01:00
committed by Greg Kroah-Hartman
parent 3e4410bb07
commit 5ee9f7cf65
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
net/core/rtnetlink.c
View File

@@ -1453,6 +1453,7 @@ static int do_setlink(const struct sk_buff *skb,
goto errout; goto errout;
} }
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) { if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
put_net(net);
err = -EPERM; err = -EPERM;
goto errout; goto errout;
} }