Buffer overflow in the qeth_snmp_command function in drivers/s390/net/qeth_core_main.c in the Linux kernel through 3.12.1 allows local users to cause a denial of service or possibly have unspecified other impact via an SNMP ioctl call with a length value that is incompatible with the command-buffer size.
https://bugzilla.redhat.com/show_bug.cgi?id=1033600
http://www.securityfocus.com/bid/63890
http://www.openwall.com/lists/oss-security/2013/11/22/5
http://rhn.redhat.com/errata/RHSA-2014-0285.html