Patrick McHardy wrote:
Andrew Morton wrote:
On Wed, 17 Oct 2007 07:36:16 -0700 (PDT)
[EMAIL PROTECTED] wrote:
http://bugzilla.kernel.org/show_bug.cgi?id=9174
Summary: linux-2.6.23-git11 kernel panic
>>
EIP is at packet_rcv_0x1a2/0x360
Please find out on which device the packet socket is opened by
looking at /proc/net/packet and comparing the Iface shown there
to the ifindexes listed in "ip link list".
Well, he replied in private mail, the device in question is
an IPv6-over-IPv4 tunnel, which doesn't have any header_ops,
so the crash happens in dev_parse_header when dereferencing
them.
Signed-off-by: Patrick McHardy <[EMAIL PROTECTED]>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 39dd83b..452c88d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -827,7 +827,7 @@ static inline int dev_parse_header(const struct sk_buff
*skb,
{
const struct net_device *dev = skb->dev;
- if (!dev->header_ops->parse)
+ if (!dev->header_ops || !dev->header_ops->parse)
return 0;
return dev->header_ops->parse(skb, haddr);
}
