linux-kernel - Re: [PATCH 1/9] Known exploit detection

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:	Fri, 13 Dec 2013 10:20:56 +0100
From:	Vegard Nossum <vegard.nossum@...cle.com>
To:	Ryan Mallon <rmallon@...il.com>, Kees Cook <keescook@...omium.org>,
	"Theodore Ts'o" <tytso@....edu>,
	LKML <linux-kernel@...r.kernel.org>,
	Tommi Rantala <tt.rantala@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andy Lutomirski <luto@...capital.net>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Alan Cox <alan@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jason Wang <jasowang@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	James Morris <james.l.morris@...cle.com>
Subject: Re: [PATCH 1/9] Known exploit detection

On 12/13/2013 12:50 AM, Ryan Mallon wrote:
> On 13/12/13 08:13, Kees Cook wrote:
>> On Thu, Dec 12, 2013 at 11:06 AM, Theodore Ts'o <tytso@....edu> wrote:
>>> On Thu, Dec 12, 2013 at 05:52:24PM +0100, vegard.nossum@...cle.com wrote:
>>>> The idea is simple -- since different kernel versions are vulnerable to
>>>> different root exploits, hackers most likely try multiple exploits before
>>>> they actually succeed.
>
> The _exploit() notifications could also be used to spam the syslogs.
> Although they are individually ratelimited, if there are enough
> _exploit() markers in the kernel then an annoying person can cycle
> through them all to generate large amounts of useless syslog.

They are rate limited collectively, not individually, so this should not 
be an issue.


Vegard
--
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/