On Mon, 2016-01-11 at 18:21 -0800, Eric Dumazet wrote: > On Mon, 2016-01-11 at 17:19 -0800, Salam Noureddine wrote: > > It must be that skb->dev was changed to NULL inside of > > __netif_receive_skb_core, otherwise we would have crashed much > > earlier. Also, orig_dev is saved at the beginning. Possibly a device > > is layered on top of the original device. > > Please do not top post on netdev / lkml mailing lists. > > My guess is a protocol handler queued the skb without calling > skb_share_check() > OK please try this fix : diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 10d42f3220ab..f925753668a7 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -377,6 +377,10 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev, struct sockaddr_pn sa; u16 len; + skb = skb_share_check(skb, GFP_ATOMIC); + if (!skb) + return NET_RX_DROP; + /* check we have at least a full Phonet header */ if (!pskb_pull(skb, sizeof(struct phonethdr))) goto out; -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
