Integer underflow in the Open Sound System (OSS) subsystem in the Linux kernel before 2.6.39 on unspecified non-x86 platforms allows local users to cause a denial of service (memory corruption) by leveraging write access to /dev/sequencer.
http://www.openwall.com/lists/oss-security/2011/03/25/1
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39