Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.
https://github.com/torvalds/linux/commit/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92
https://exchange.xforce.ibmcloud.com/vulnerabilities/94412
https://bugzilla.redhat.com/show_bug.cgi?id=1113406
http://www.ubuntu.com/usn/USN-2335-1
http://www.ubuntu.com/usn/USN-2334-1
http://www.openwall.com/lists/oss-security/2014/06/26/6
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
http://secunia.com/advisories/60564
http://secunia.com/advisories/60545
http://secunia.com/advisories/59777
http://secunia.com/advisories/59434
http://rhn.redhat.com/errata/RHSA-2015-1272.html
http://rhn.redhat.com/errata/RHSA-2014-1083.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html