kernel security and bug fix update

[2.6.18-92.1.6.0.2.el5]

• [NET] Add entropy support to e1000 and bnx2 (John Sobecki) [orabug 6045759]
• [splice] Fix bad unlock_page() in error case (Jens Axboe) [orabug 6263574]
• [dio] fix error-path crashes (Linus Torvalds) [orabug 6242289]
• [NET] fix netpoll race (Tina Yang) [orabugz 5791]
  [2.6.18-92.1.6.el5]
• [x86] sanity checking for read_tsc on i386 (Brian Maly ) [447686 443435]
  [2.6.18-92.1.5.el5]
• [x86_64] copy_user doesn’t zero tail bytes on page fault (Vitaly Mayatskikh) [451275 451276] {CVE-2008-2729}
  [2.6.18-92.1.4.el5]
• Revert: [misc] ttyS1 loses interrupt and stops transmitting (Simon McGrath ) [443071 440121]
  [2.6.18-92.1.3.el5]
• [x86_64] fix possible data leaks in copy_from_user() routine (Anton Arapov ) [433944 433945] {CVE-2008-0598}
  [2.6.18-92.1.2.el5]
• [misc] ttyS1 loses interrupt and stops transmitting (Simon McGrath ) [443071 440121]
• [net] DCCP sanity check feature length (Anton Arapov ) [447395 447396] {CVE-2008-2358}
• [misc] fix possible buffer overflow in ASN.1 parsing routine (Anton Arapov ) [444464 444465] {CVE-2008-1673}