Re: [BUG] liveupdate: incoming/outgoing session ioctls accepted in wrong phase can panic

[Pratyush Yadav]

On Sun, May 24 2026, Yifei Chu wrote:

> Hello,
>
> Short version: I found that liveupdate session ioctls can be accepted on the wrong kind of session. In my tests, that
> lets userspace drive memfd LUO into KHO restore paths for current-kernel preserved memory, which hits kho_restore_page()
> warnings and panics with panic_on_warn=1.

I already sent a fix for this:
https://lore.kernel.org/kexec/20260519122428.2378446-1-pratyush@xxxxxxxxxx/

I need to do a refresh of this patch with some tests.

-- 
Regards,
Pratyush Yadav