linux-kernel - Re: [PATCH 2/2] mm: mmap: map MAP_STACK to VM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 16 Jan 2024 13:31:59 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Yang Shi <shy828301@...il.com>
Cc: "Zach O'Keefe" <zokeefe@...gle.com>, Yin Fengwei
 <fengwei.yin@...el.com>, oliver.sang@...el.com, riel@...riel.com,
 willy@...radead.org, cl@...ux.com, ying.huang@...el.com,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 2/2] mm: mmap: map MAP_STACK to VM_NOHUGEPAGE

On Tue, 16 Jan 2024 12:57:41 -0800 Yang Shi <shy828301@...il.com> wrote:

> > Should this be marked for stable? Given how easily it is for pthreads
> > to allocate hugepages w/o this change, it can easily cause memory
> > bloat on larger systems and/or users with high thread counts. I don't
> > think that will be welcomed, and seems odd that just 6.7 should suffer
> > this.
> 
> Thanks for the suggestion, fine to me.
>

Thanks, added, along with

Fixes: efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries")