linux-kernel - Re: [PATCH v2 0/7] SLAB support for KASAN

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 for Android: free password hash cracker in your pocket

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

Message-ID: <alpine.DEB.2.20.1602181131320.24647@east.gentwo.org>
Date:	Thu, 18 Feb 2016 11:32:40 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Alexander Potapenko <glider@...gle.com>
cc:	adech.fo@...il.com, dvyukov@...gle.com, akpm@...ux-foundation.org,
	ryabinin.a.a@...il.com, rostedt@...dmis.org,
	iamjoonsoo.kim@....com, js1304@...il.com, kcc@...gle.com,
	kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH v2 0/7] SLAB support for KASAN

On Thu, 18 Feb 2016, Alexander Potapenko wrote:

> Unlike SLUB, SLAB doesn't store allocation/deallocation stacks for heap
> objects, therefore we reimplement this feature in mm/kasan/stackdepot.c.
> The intention is to ultimately switch SLUB to use this implementation as
> well, which will remove the dependency on SLUB_DEBUG.

This needs to be clarified a bit. CONFIG_SLUB_DEBUG is on by default. So
the dependency does not matter much. I think you depend on the slowpath
debug processing right? The issue is that you want to do these things in
the fastpath?