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Date: Fri, 6 Dec 2013 19:16:01 +0530 (IST)
From: P J P <>
To: oss security list <>
Subject: CVE request: Linux kernel: net: fib: fib6_add: potential NULL pointer


Linux kernel built with the IPv6 protocol(CONFIG_IPv6) along with the IPv6 
source address based routing support(CONFIG_IPV6_SUBTREE) is vulnerable to a 
NULL pointer dereference flaw. It could occur while doing an ioctl(SIOCADDRT) 
call on an IPv6 socket. User would need to have CAP_NET_ADMIN privileges to 
perform such a call.

A user/program with CAP_NET_ADMIN privileges could use this flaw to crash a
system resulting in DoS.

Upstream fix:


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

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