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Message-ID: <alpine.LFD.2.11.1505292156260.17180@wniryva>
Date: Fri, 29 May 2015 22:05:26 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: drew@...dstorm.io
Subject: CVE request Linux kernel: ns: user namespaces panic
Hello,
Linux kernel built with the user namespaces support(CONFIG_USER_NS) is
vulnerable to a NULL pointer dereference flaw. It could occur when users in
user namespaces do unmount mounts.
An unprivileged user could use this flaw to crash the system resulting in DoS.
Upstream fixes:
---------------
-> https://git.kernel.org/linus/820f9f147dcce2602eefd9b575bbbd9ea14f0953
-> https://git.kernel.org/linus/cd4a40174b71acd021877341684d8bb1dc8ea4ae
It was introduced by:
---------------------
-> https://git.kernel.org/linus/ce07d891a0891d3c0d0c2d73d577490486b809e1
Thank you Drew Fisher for reporting this issue to Fedora Security Team.
Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F
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