CVE-2010-3080 kernel: /dev/sequencer open failure is not handled correctly

[Eugene Teo <eugene () redhat com>]

Reported by Tavis Ormandy. There's a bug in snd_seq_oss_open from 
sound/core/seq/oss/seq_oss_init.c that can result in dereferencing of a 
released pointer. On some distros like Red Hat Enterprise Linux 5, 
/dev/sequencer is restricted to root owner only. On others like Fedora 
13, it cannot be accessed by a local, unprivileged user unless someone 
logs in from the console on his/her behalf.

https://bugzilla.redhat.com/CVE-2010-3080
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=commitdiff;h=c598337660c21c0afaa9df5a65bb4a7a0cf15be8

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