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Message-Id: <115903262344-git-send-email-mostrows@earthlink.net> Date: Sat, 23 Sep 2006 12:30:23 -0500 From: mostrows@...thlink.net To: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, ppp-bugs@...samba.org Cc: Michal Ostrowski <mostrows@...thlink.net> Subject: [PATCH] Advertise PPPoE MTU / avoid memory leak. PPPoE must advertise the underlying device's MTU via the ppp channel descriptor structure, as multilink functionality depends on it. __pppoe_xmit must free any skb it allocates if there is an error submitting the skb downstream. Signed-off-by: Michal Ostrowski <mostrows@...thlink.net> --- drivers/net/pppoe.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index 475dc93..b4dc516 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -600,6 +600,7 @@ static int pppoe_connect(struct socket * po->chan.hdrlen = (sizeof(struct pppoe_hdr) + dev->hard_header_len); + po->chan.mtu = dev->mtu - sizeof(struct pppoe_hdr); po->chan.private = sk; po->chan.ops = &pppoe_chan_ops; @@ -831,7 +832,7 @@ static int __pppoe_xmit(struct sock *sk, struct pppoe_hdr *ph; int headroom = skb_headroom(skb); int data_len = skb->len; - struct sk_buff *skb2; + struct sk_buff *skb2 = NULL; if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) goto abort; @@ -887,6 +888,8 @@ static int __pppoe_xmit(struct sock *sk, return 1; abort: + if (skb2) + kfree_skb(skb2); return 0; } -- 1.4.1.1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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