kernel security and bug fix update

kernel
[2.6.18-308.13.1.el5]

• [net] e1000e: Cleanup logic in e1000_check_for_serdes_link_82571 (Dean Nelson) [841370 771366]
• [net] e1000e: Correct link check logic for 82571 serdes (Dean Nelson) [841370 771366]
• [mm] NULL pointer dereference in __vm_enough_memory (Jerome Marchand) [840077 836244]
• [fs] dlm: fix slow rsb search in dir recovery (David Teigland) [838140 753244]
• [fs] autofs: propogate LOOKUP_DIRECTORY flag only for last comp (Ian Kent) [830264 814418]
• [fs] ext4: properly dirty split extent nodes (Eric Sandeen) [840946 839770]
• [scsi] don’t offline devices with a reservation conflict (David Jeffery) [839196 835660]
• [fs] ext4: Fix overflow caused by missing cast in ext4_fallocate (Lukas Czerner) [837226 830351]
• [net] dl2k: Clean up rio_ioctl (Weiping Pan) [818822 818823] {CVE-2012-2313}
• [x86] sched: Avoid unnecessary overflow in sched_clock (Prarit Bhargava) [835450 834562]
• [net] tg3: Fix TSO handling (John Feeney) [833182 795672]
• [input] evdev: use after free from open/disconnect race (David Jeffery) [832448 822166]
  [2.6.18-308.12.1.el5]
• [fs] nfs: Don’t allow multiple mounts on same mntpnt with -o noac (Sachin Prabhu) [839806 839753]