oss-security - Re: CVE request - kernel: bonding: Incorrect TX queue offset

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Message-ID: <83248561.77842.1302723474926.JavaMail.root@zmail01.collab.prod.int.phx2.redhat.com>
Date: Wed, 13 Apr 2011 15:37:54 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request - kernel: bonding: Incorrect TX
 queue offset

Please use CVE-2011-1581

Thanks.

-- 
    JB


----- Original Message -----
> Backport of upstream commit:
> fd0e435b0fe85622f167b84432552885a4856ac8 bonding: Incorrect TX queue
> offset
> 
> By default bonding only allocates 16 queues. Devices that have more
> than
> 16 receive queues will exceed the tx queue index for the bonding
> device,
> resulting in at least a denial of service (BUG: unable to handle
> kernel
> paging request at...).
> 
> For proper queue allocation, in the bonding driver and down to the
> devices, they should probably add the following line to one of the
> files
> in /etc/modprobe.d/
> 
> options bonding tx_queues=N
> 
> where N>= number of processors that show up in /proc/cpuinfo.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=696029
> http://git.kernel.org/linus/fd0e435b0fe85622f167b84432552885a4856ac8
> 
> Thanks, Eugene
> --
> main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i);
> }

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