Double free vulnerability in the snd_seq_oss_open function in sound/core/seq/oss/seq_oss_init.c in the Linux kernel before 2.6.36-rc4 might allow local users to cause a denial of service or possibly have unspecified other impact via an unsuccessful attempt to open the /dev/sequencer device.
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
https://bugzilla.redhat.com/show_bug.cgi?id=630551
http://secunia.com/advisories/42890
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
http://www.openwall.com/lists/oss-security/2010/09/08/7
http://www.redhat.com/support/errata/RHSA-2011-0007.html