Dom0 kernel network stack runs into host crash if skb packets length > MTU and without GSO flag

Occasionally, one of my 6.5SP1 box runs into a host crash if there are GSO packets. Andrew's tool, xen-crashdump-analyser, points that the fault address is inside the ip_fragment function.

I find that there is patch in the community, http://www.spinics.net/lists/netdev/msg359381.html, to prevent skb fragment corrupt. I check 6.5 kernel source and latest linux kernel source, this patch is not included.

I cannot reproduce this host crash stably, as this issue only happens once I cannot get the whole Dom0 kernel memory image, so I am not sure if this is a real bug.