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Date: Wed, 16 Feb 2011 08:44:08 -0500 (EST)
From: Josh Bressers <>
Cc: "Steven M. Christey" <>
Subject: Re: CVE request - kernel: bridge br_multicast NULL
 pointer dereference

----- Original Message -----
> "Somewhere along the line the NULL check in br_mdb_ip_get went AWOL,
> causing crashes when we receive an IGMP packet with no multicast table
> allocated.
> This patch restores it and ensures all br_mdb_*_get functions use it."
> Did a quick check: net/bridge/br_multicast.c was introduced in
> eb1d1641
> (2.6.34-rc1), the check was removed in 8ef2a9a5 (v2.6.35-rc1), and
> subsequently restored in 7f285fa78d (v2.6.35-rc5).

Please use CVE-2011-0709.



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