Re: [tip: x86/urgent] x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF

From: Dave Hansen

Date: Tue Sep 08 2026 - 10:26:31 EST


On 9/8/26 02:32, Mike Rapoport wrote:
> I have to say I'm confused with today's batch of tip-bot emails saying Ingo
> applied these to x86/mm :/

Just a reminder that we have x86/urgent which will be going to Linus
like today. There's also x86/mm which goes up in the next merge window..

The "Fix effective RW computation" patch is getting broken out and is
going to wait for the next merge window. We don't want it sitting in
mainline generating warnings, especially false positives like the one
this weekend. That's not to disparage the patch; it's overall the right
thing to do.

Sound good?