kernel security update

[2.6.9-89.0.19.0.1.EL]

• fix skb alignment that was causing sendto() to fail with EFAULT
  (Olaf Kirch) [orabug 6845794]
• fix enomem due to larger mtu size page alloc (Zach Brown) [orabug 5486128]
• backout patch sysrq-b that queues upto keventd thread (Guru Anbalagane)
  [orabug 6125546]
• netrx/netpoll race avoidance (Tina Yang) [orabug 6143381]
• [XEN] Fix elf_core_dump (Tina Yang) [orabug 6995928]
• use lfence instead of cpuid instruction to implement memory barriers
  (Herbert van den Bergh) [orabug 7452412]
• add netpoll support to xen netfront (Tina Yang) [orabz 7261]
• [xen] execshield: fix endless GPF fault loop (Stephen Tweedie)
  [orabug 7175395]
• [xen]: port el5u2 patch that allows 64-bit PVHVM guest to boot with 32-bit
  dom0 [orabug 7452107] xenstore
• [mm] update shrink_zone patch to allow 100% swap utilization (John Sobecki,
  Chris Mason, Chuck Anderson, Dave McCracken) [orabug 7566319,6086839]
• [kernel] backport report_lost_ticks patch from EL5.2 (John Sobecki)
  [orabug 6110605]
• [xen] fix for hung JVM thread after #GPF [orabug 7916406] (Chuck Anderson)
• port EL5U3 patch to adjust totalhigh_pages in the balloon driver
  [orabug 8300888]
• check to see if hypervisor supports memory reservation change (Chuck Anderson) [orabug7556514]
• [XEN] use hypercall to fixmap pte updates (Mukesh Rathor) [orabug 8433329]
• [XEN] Extend physical mask to 40bit for machine above 64G [orabug 8312526]
• fix oops in nlmclnt_mark_reclaim (Trond Myklebust) [orabug 8568878]
• [x86_64] Allowed machine_reboot running on boot_cpu (Joe Jin) [orabug 8425237]
• FP register state is corrupted during the handling a SIGSEGV (Chuck Anderson)
  [orabug 7708133]
• [x86_64]: fix x86_64 largesmp kernel reboot hang (Joe Jin) [orabug bug9126592]
  [2.6.9-89.0.19]
  -net: fix rx length check errors in e1000e (Cong Wang) [551218 551214] {CVE-2009-e1000e}
  -net: fix rx length check errors in e1000 and r8169 (Neil Horman) [550910 550907] {CVE-2009-e1000} {CVE-2009-r8169}