linux-kernel - Re: Userspace process may be able to DoS kernel

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: <200610121254.06476.lists@naasa.net>
Date:	Thu, 12 Oct 2006 12:54:06 +0200
From:	Joerg Platte <lists@...sa.net>
To:	Willy Tarreau <w@....eu>
Cc:	Günther Starnberger <gst@...frog.org>,
	linux-kernel@...r.kernel.org
Subject: Re: Userspace process may be able to DoS kernel

Am Donnerstag, 12. Oktober 2006 08:49 schrieb Willy Tarreau:
> On Thu, Oct 12, 2006 at 08:02:58AM +0200, Joerg Platte wrote:
> > Using 2.6.18 does not solve the problem. I can see exactly the same
> > behavior with a vanilla and not tainted 2.6.18 kernel.
>
> Just out of curiosity, does the system still respond to ping during this
> period, and does the time still progress during the lock up ? Not that it
> could help me find out what's happening, but it might help troubleshooting
> the problem.

Pinging the system works and the the time is still correct. But this time I 
was not able to trigger a kernel warning, because I was not able to generate 
a long lockup. Maybe I'll have to wait a few more hours before trying it 
again, because the duration of the lockup is proportional to the time skype 
is running.

regards,
Jörg
-
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/