CVE-2010-2954 kernel: irda null ptr deref

[Eugene Teo <eugene () redhat com>]

Reported by Taviso Ormandy.
Patch at: http://www.spinics.net/lists/netdev/msg139404.html.
References:
https://bugzilla.redhat.com/CVE-2010-2954
http://twitter.com/taviso/status/22635752128

Quick check, introduced in 61e44b48 (v2.6.24 and above).

Thanks, Eugene
--
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }