kernel security and bug fix update

[2.6.32-279.11.1.el6]

• [net] core: Fix napi_gro_frags vs netpoll path (Amerigo Wang) [857854 845347]
• [netdrv] benet: disable BH in callers of be_process_mcc() (Amerigo Wang) [857854 845347]
• [net] bonding: remove IFF_IN_NETPOLL flag (Amerigo Wang) [857854 845347]
• [mm] fix contig_page_data kABI breakage and related memory corruption (Satoru Moriya) [857012 853007]
• [net] sctp: backport sctp cache ipv6 source after route lookup (Michele Baldessari) [858284 855759]
• [net] sctp: backport support of sctp multi-homing ipv6 source address selection (Michele Baldessari) [858284 855759]
• [net] ipv6: backport RTA_PREFSRC ipv6 source route selection support (Michele Baldessari) [858285 851118]
• [netdrv] sfc: Fix maximum number of TSO segments and minimum TX queue size (Nikolay Aleksandrov) [845556 845557] {CVE-2012-3412}
• [s390] zfcp: No automatic port_rescan on events (Hendrik Brueckner) [856316 855131]
• [fs] xfs: push the AIL from memory reclaim and periodic sync (Dave Chinner) [856686 855139]
  [2.6.32-279.10.1.el6]
• [mm] hugetlbfs: close race during teardown of hugetlbfs shared page tables (Rafael Aquini) [857334 856325]
• [mm] hugetlbfs: Correctly detect if page tables have just been shared (Rafael Aquini) [857334 856325]
• [kernel] sched: fix divide by zero at {thread_group,task}_times (Stanislaw Gruszka) [856703 843771]