oss-security - CVE request: kernel: inotify local DoS

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Date: Fri, 06 Mar 2009 22:10:39 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>
Subject: CVE request: kernel: inotify local DoS

According to the upstream commit 3632dee2, if userspace supplies an 
invalid pointer to a read() of an inotify instance, the inotify device's 
event list mutex is unlocked twice. This causes an unbalance which 
effectively leaves the data structure unprotected, and we can trigger 
oopses by accessing the inotify instance from different tasks
concurrently.

http://patchwork.kernel.org/patch/4857/
https://bugzilla.redhat.com/show_bug.cgi?id=488935

Thanks, Eugene
-- 
Eugene Teo / Red Hat Security Response Team

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