Re: [PATCH 1/9] Known exploit detection

Vegard Nossum
2013-12-13T09:23:07Z

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@mit.edu> wrote:
>>> On Thu, Dec 12, 2013 at 05:52:24PM +0100, vegard.nossum@oracle.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