From: Saurabh Mohan Date: Tue, 11 Jun 2013 00:45:10 +0000 (-0700) Subject: net/ipv4: ip_vti clear skb cb before tunneling. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=baafc77b32f647daa7c45825f7af8cdd55d00817;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git net/ipv4: ip_vti clear skb cb before tunneling. If users apply shaper to vti tunnel then it will cause a kernel crash. The problem seems to be due to the vti_tunnel_xmit function not clearing skb->opt field before passing the packet to xfrm tunneling code. Signed-off-by: Saurabh Mohan Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index 9d2bdb2c1d3f..c118f6b576bb 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -361,8 +361,7 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) tunnel->err_count = 0; } - IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED | - IPSKB_REROUTED); + memset(IPCB(skb), 0, sizeof(*IPCB(skb))); skb_dst_drop(skb); skb_dst_set(skb, &rt->dst); nf_reset(skb);