Important: kernel security update

[2.6.18-53.1.13.0.1.el5]

• [NET] Add entropy support to e1000 and bnx2 (John Sobecki) [orabug
  6045759]
• [NET] Fix msi issue with kexec/kdump (Michael Chan) [orabug 6219364]
• [MM] Fix alloc_pages_node() static `nid' race made kernel crash (Joe
  Jin) [orabug 6187457]
• [splice] Fix bad unlock_page() in error case (Jens Axboe) [orabug
  6263574]
• [dio] fix error-path crashes (Linus Torvalds) [orabug 6242289]
• [MM] Fix leak in hugepages, regression for shared pagetables patch
  (Adam Litke) [orabug 6732368]

[2.6.18-53.1.13]

• revert to 2.6.18-53.1.6.el5
• [x86_64] kernel vmsplice_to_pipe flaw (Alexander Viro ) [432252]
  {CVE-2008-0600}