>Mar 31 13:01:53 ns1.acan.net kernel: Unable to handle kernel NULL pointer dereference at virtual address c000000d
>Mar 31 13:01:53 ns1.acan.net kernel: current->tss.cr3 = 00f1f000, 8r3 = 00f1f000Mar 31 13:01:53 ns1.acan.net kernel: *pde = 00102067
>Mar 31 13:01:54 ns1.acan.net kernel: *pte = 00000000
>Mar 31 13:01:54 ns1.acan.net kernel: Oops: 0000
>Mar 31 13:01:54 ns1.acan.net kernel: CPU: 0
>Mar 31 13:01:54 ns1.acan.net kernel: EIP: 0010:[tcp_recvmsg+364/1032]
The Oops happened in linux/net/ipv4/tcp.c:
/*
* Next get a buffer.
*/
current->state = TASK_INTERRUPTIBLE;
skb = sk->receive_queue.next;
while (skb != (struct sk_buff *)&sk->receive_queue)
{
if (before(*seq, skb->seq))
break;
offset = *seq - skb->seq;
if (skb->h.th->syn)
^^^^
offset--;
if (offset < skb->len)
goto found_ok_skb;
if (skb->h.th->fin)
goto found_fin_ok;
if (!(flags & MSG_PEEK))
skb->used = 1;
skb = skb->next;
}
The Oops happened trying to dereference the pointer to the struct tcphdr
skb->h.th.
Andrea[s] Arcangeli
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