kernel security and bug fix update

2.6.18-308.8.1.el5 - net sock: validate datalen before allocating skb in sockallocsendpskb Jason Wang 816290 816106 CVE-2012-2136 - net tg3: Fix VLAN tagging assignments John Feeney 817691 797011 - net ixgbe: do not stop stripping VLAN tags in promiscuous mode Andy Gospodarek 809791 804800 - s390...