ip_fragment.c patch not working?

Mark Johnson (octopus@zipcon.net)
Sun, 20 Oct 1996 19:42:14 -0700 (PDT)

I seem to be experiencing reboots, even with the patch. I am running
2.0.14 with Alan's SYN patch from an e-mail dated Sept 21st. It appears
that this ip_fragment patch doesn't completely solve the problem(?).
Maybe its just coincidence, but I've never experienced reboots like this.

I have had a logged oversized packet (with Jon's modified printk patch),
and even tested things on a Win '95 box on the LAN. A couple hours
later, I found my box rebooting again, out of the blue. Like usual,
nothing in any logs, just a 'spontaneous' reboot. That makes 4 times
today. Any help would be very, very much appreciated.

Here is the patch I am using:

--- ip_fragment.c.orig Wed Aug 7 07:00:08 1996
+++ ip_fragment.c Sat Oct 19 20:33:42 1996
@@ -47,6 +47,8 @@

atomic_t ip_frag_mem = 0; /* Memory used for
fragments */

+char *in_ntoa(unsigned long in);
+
/*
* Memory Tracking Functions
*/
@@ -366,7 +368,7 @@
{
NETDEBUG(printk("Invalid fragment list: Fragment
over size.\n"));
ip_free(qp);
- frag_kfree_skb(skb,FREE_WRITE);
+ kfree_skb(skb,FREE_WRITE);
ip_statistics.IpReasmFails++;
return NULL;
}
@@ -466,6 +468,19 @@
return NULL;
}
}
+
+ /*
+ * Attempt to construct an oversize packet.
+ */
+
+ if(ntohs(iph->tot_len)+(int)offset>65535)
+ {
+ skb->sk = NULL;
+ printk("Oversized packet received from
%s\n",in_ntoa(qp->iph->saddr));
+ frag_kfree_skb(skb, FREE_READ);
+ ip_statistics.IpReasmFails++;
+ return NULL;
+ }

/*
* Determine the position of this fragment.