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Date: Fri, 10 May 2013 17:33:37 +0530 (IST)
From: P J P <>
To: oss security list <>
Subject: CVE request: Linux kernel: tuntap refuse to re-attach to different


Linux kernels built with Universal TUN/TAP device driver(CONFIG_TUN) that 
includes multiqueue - ioctl(TUNSETQUEUE) - support, is vulnerable to a kernel 
crash while attaching a device to a new queue.

A user/program could use this flaw to crash the system resulting in DoS.

Upstream fix:

Thank you.
Prasad J Pandit / Red Hat Security Response Team
DB7A 84C5 D3F9 7CD1 B5EB  C939 D048 7860 3655 602B

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