linux-kernel - Re: [PATCH 1/4] mm: kvrealloc: disable KASAN when switching to vmalloc

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]

Message-Id: <20240730141508.2da2194a2faacfabb6030c18@linux-foundation.org>
Date: Tue, 30 Jul 2024 14:15:08 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Danilo Krummrich <dakr@...nel.org>
Cc: urezki@...il.com, hch@...radead.org, vbabka@...e.cz, mhocko@...e.com,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 1/4] mm: kvrealloc: disable KASAN when switching to
 vmalloc

On Tue, 30 Jul 2024 20:49:41 +0200 Danilo Krummrich <dakr@...nel.org> wrote:

> Disable KASAN accessibility checks when switching from a kmalloc buffer
> to a vmalloc buffer.

This text tells us "what", which was utterly evident from a cursory
read of the code.

Please tell us the "why".  Completely.

> Fixes: 923a26b4c679 ("mm: kvmalloc: align kvrealloc() with krealloc()")

For those who are following along, this patch in mm-unstable so this
patch will be squished into the above.