linux-kernel - Re: [PATCH v2 1/2] mm: Move page struct poisoning to CONFIG_DEBUG_VM_PAGE_INIT

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:   Wed, 5 Sep 2018 14:34:20 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Alexander Duyck <alexander.duyck@...il.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     alexander.h.duyck@...el.com, pavel.tatashin@...rosoft.com,
        mhocko@...e.com, akpm@...ux-foundation.org, mingo@...nel.org,
        kirill.shutemov@...ux.intel.com
Subject: Re: [PATCH v2 1/2] mm: Move page struct poisoning to
 CONFIG_DEBUG_VM_PAGE_INIT_POISON

On 09/05/2018 02:13 PM, Alexander Duyck wrote:
> Instead of keeping the value in CONFIG_DEBUG_VM I am adding a new CONFIG
> value called CONFIG_DEBUG_VM_PAGE_INIT_POISON that will control the page
> poisoning independent of the CONFIG_DEBUG_VM option.

I guess this is a reasonable compromise.

If folks see odd 'struct page' corruption, they'll have to know to go
turn this on and reboot, though.