linux-kernel - Re: [PATCH] [2/11] x86: Fix alternatives and kprobes to remap write-protected kernel text

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:	Mon, 23 Jul 2007 17:01:28 +0200
From:	Andi Kleen <ak@...e.de>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	jbeulich@...ell.com, jeremy@...p.org, zach@...are.com,
	patches@...-64.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [2/11] x86: Fix alternatives and kprobes to remap write-protected kernel text

On Monday 23 July 2007 16:46:03 Mathieu Desnoyers wrote:

> I would recommend to prefix with __init every function that is assumed
> "safe" because executed at boot time. It would minimize the risks of
> buggy usage of these text-modification primitives. That includes
> text_poke() and a big chunk of the apply alternative code. (it should
> never be executed on a live system, except at boot time, right ?)

lock prefix patching can happen later on cpu hotplug/unplug event.

-Andi

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/