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Date: Wed, 30 Apr 2014 20:14:04 +0530 (IST)
From: P J P <>
To: oss security list <>
Subject: CVE request Linux kernel: mm: try_to_unmap_cluster() should lock_page()
 before mlocking


Linux kernel kernel's Memory Management Unit(MMU) is vulnerable to a crash
caused by unlocked memory pages. It could occur during the memory page
migration or while cleaning the swap cache pages.

An unprivileged user/program could use this flaw to crash the system kernel,
resulting in DoS.

Upstream fix:

Introduced in:

Thank you.
Prasad J Pandit / Red Hat Security Response Team

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