This is a note to let you know that I've just added the patch titled
rtnetlink: release net refcnt on error in do_setlink()
to the 3.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtnetlink-release-net-refcnt-on-error-in-do_setlink.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Dec 14 08:37:01 PST 2014
From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Date: Thu, 27 Nov 2014 10:16:15 +0100
Subject: rtnetlink: release net refcnt on error in do_setlink()
From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
[ 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@xxxxxxxxxxxx>
Fixes: b51642f6d77b ("net: Enable a userns root rtnl calls that are safe for unprivilged users")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Reviewed-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/rtnetlink.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1495,6 +1495,7 @@ static int do_setlink(const struct sk_bu
goto errout;
}
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
+ put_net(net);
err = -EPERM;
goto errout;
}
Patches currently in stable-queue which might be from nicolas.dichtel@xxxxxxxxx are
queue-3.17/rtnetlink-release-net-refcnt-on-error-in-do_setlink.patch
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