PROBLEM: (89700) (PATCH ID: OSF520-087)
********
A system configured with the IPTUNNEL kernel option, or a system which has the
iptunnel module dynamically loaded, will crash if it receives a corrupted 
IPv6-in-IPv4 packet.  The system will crash even if it is not running IPv6.
The system will panic with the message "kermel memory fault in ip6ip4_input()".


PROBLEM: (HPAQB1S2Z) (PATCH ID: OSF520-244)
********
This patch fixes a kernel memory fault  caused by
malformed  IPv4-in-IPv4 packets.
The stack trace that is indicative of this problem looks like
the trace below:

 1:         panic+800:  boot(0x0, 0x0)
 2:          trap+9376: panic(NULL!)
 3:       _XentMM+84:   trap(0x118, 0x1, 0x0, 0x0, 0xfffffe04280ff740)
 4:  ip4ip4_input+300:  _XentMM()
 5:    ipip_input+88:   ip4ip4_input(0x0, 0x14)
 6:        ipintr+4068: ipip_input(0xfffffc0016dc1e00, 0x14)
 7: netisr_thread+752:  ipintr(0xfffffc001e8cd140)