[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Wed, 21 Dec 2011 23:10:42 +0100
From: Petr Matousek <pmatouse@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE Request -- kernel: tight loop and no preemption can cause system
stall
A tight loop in user level process isn't preempted unless a realtime
process is woken up on the cpu. Some important kernel threads such as
events/*, kblockd/* can be blocked by the process, and the machine
stalls.
Unprivileged local user could use this flaw to DoS the system.
Upstream commit:
f26f9aff6aaf67e9a430d16c266f91b13a5bff64
Reference:
https://lkml.org/lkml/2010/11/20/212
https://bugzilla.redhat.com/show_bug.cgi?id=769711
Thanks,
--
Petr Matousek / Red Hat Security Response Team
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
