Command triggering the issue: 
lnetctl peer show -v 2 
Summary: Net peer generic-netlink dump NULL dereference with large verbose peer output
Environment:

• Lustre client: upstream 2.15.90 also 2.17.x . Doesn't exist in 2.15.8 as the issue LU-9680 is not include there. Where ever the patch LU-9680  exist. 
• Kernel: 6.8.0-1051-nvidia-64k or  6.8.0-1028-nvidia-64k but it is there in x86 as well.
• Reproducer: ARM64 client, kernel 6.8.0-1028-nvidia-64k
• Trigger: lnetctl peer show -v 2
• Scale: approximately 800 LNet peers. Also tried with 2000

The stack trace and other details in the dmesg are as following. If the kernel parameter kernel.panic_on_oopsis set, it will panic the system. 

CPU: 141 PID: 3688398 Comm: lnetctl
pc : lnet_peer_ni_show_dump+0xa20/0xf10 [lnet]
x22: 0000000000000000
Code: 2a1a03f4 b940be61 8b010000 cb160000 (790002c0)
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000