linux-kernel - [24/70] pppoe: drop PPPOX_ZOMBIEs in pppoe_flush

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Date:	Tue, 19 Apr 2011 13:08:33 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Ulrich Weber <uweber@...aro.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [24/70] pppoe: drop PPPOX_ZOMBIEs in pppoe_flush_dev

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Ulrich Weber <uweber@...aro.com>

[ Upstream commit ae07b0b221b6ab2edf9e3abd518aec6cd3f1ba66 ]

otherwise we loop forever if a PPPoE socket was set
to PPPOX_ZOMBIE state by a PADT message when the
ethernet device is going down afterwards.

Signed-off-by: Ulrich Weber <uweber@...aro.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/net/pppoe.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -317,7 +317,7 @@ static void pppoe_flush_dev(struct net_d
 			lock_sock(sk);
 
 			if (po->pppoe_dev == dev &&
-			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
 				pppox_unbind_sock(sk);
 				sk->sk_state = PPPOX_ZOMBIE;
 				sk->sk_state_change(sk);


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