Re: [BUG] sched/mm_cid: NULL pointer dereference in sched_mm_cid_fork on ARM64

From: Artur Sultangirov
Date: Fri Dec 26 2025 - 15:04:24 EST


Hi,

I noticed that Mathieu Desnoyers already posted a fix for this issue here:
https://lore.kernel.org/all/d6ac8fe9-5fc0-4042-9592-cde3db82b65e@xxxxxxxxxxxx/

I have applied this patch and verified that it fixes the panic on ARM64 (Apple M4 via QEMU in TCG mode).

Feel free to add:
Tested-by: Artur Sultangirov <za4emsu@xxxxxxxxx>

Best regards,
Artur