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: <46B62A79.3030502@blackdown.de>
Date:	Sun, 05 Aug 2007 21:52:25 +0200
From:	Juergen Kreileder <jk@...ckdown.de>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	linux-kernel@...r.kernel.org, dm-devel@...hat.com
Subject: Re: lvcreate on 2.6.22.1: kernel tried to execute NX-protected page

Arjan van de Ven wrote:
> On Sun, 2007-08-05 at 21:03 +0200, Juergen Kreileder wrote:
>> I've upgraded devmapper to 1.02.20 and lvm2 to 2.02.26.  Didn't help much,
>> I just got a the same BUG again:
>>
>> kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
>> BUG: unable to handle kernel paging request at virtual address f492c1f8
> 
> 
> I suspect this is a module that got unloaded but still had some function
> pointer registered somewhere.....
> 
> do you know if/which module that could be?
> (one trick is to compile the kernel such that you don't allow modules to
> be unloaded at all; if that makes it work it's clearly the type of bug I
> described above)

It's a static kernel, no modules.  I've attached the config.


	Juergen



Download attachment "config-2.6.22.1-jk1-exec-shield.gz" of type "application/x-gzip" (8526 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ