openwrtv3/target/linux/generic/patches-3.18/101-pppoe-fix-disconnect-crash.patch
Felix Fietkau b0f48b6ebc kernel: add a patch to fix crashes on pppoe disconnect/reconnect
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47026
2015-09-22 11:28:28 +00:00

16 lines
618 B
Diff

Fix crash with actions performed on the underlying interface (MAC address,
MTU or link state update). This triggers pppoe_flush_dev(), which cleans up
the device without announcing it in sk->sk_state.
Patch by Guillaume Nault (pulled from netdev@vger)
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -313,7 +313,6 @@ static void pppoe_flush_dev(struct net_d
if (po->pppoe_dev == dev &&
sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
pppox_unbind_sock(sk);
- sk->sk_state = PPPOX_ZOMBIE;
sk->sk_state_change(sk);
po->pppoe_dev = NULL;
dev_put(dev);