kernel security, bug fix, and enhancement update

[2.6.18-274.17.1.0.1.el5]

• fix ia64 build error due to add-support-above-32-vcpus.patch(Zhenzhong Duan)
• [x86] use dynamic vcpu_info remap to support more than 32 vcpus (Zhenzhong Duan)
• [scsi] add additional scsi medium error handling (John Sobecki) [orabug 12904887]
• [x86] Fix lvt0 reset when hvm boot up with noapic param
• [scsi] remove printk’s when doing I/O to a dead device (John Sobecki, Chris Mason)
  [orabug 12342275]
• [char] ipmi: Fix IPMI errors due to timing problems (Joe Jin) [orabug 12561346]
• [scsi] Fix race when removing SCSI devices (Joe Jin) [orabug 12404566]
• bonding: reread information about speed and duplex when interface goes up (John Haxby) [orabug 11890822]
• [fs] nfs: Fix __put_nfs_open_context() NULL pointer panic (Joe Jin) [orabug 12687646]
• [scsi] fix scsi hotplug and rescan race [orabug 10260172]
• fix filp_close() race (Joe Jin) [orabug 10335998]
• make xenkbd.abs_pointer=1 by default [orabug 67188919]
• [xen] check to see if hypervisor supports memory reservation change
  (Chuck Anderson) [orabug 7556514]
• [net] Enable entropy for bnx2,bnx2x,e1000e,igb,ixgb,ixgbe,ixgbevf (John Sobecki)
  [orabug 10315433]
• [NET] Add xen pv netconsole support (Tina Yang) [orabug 6993043] [bz 7258]
• [mm] shrink_zone patch (John Sobecki,Chris Mason) [orabug 6086839]
• fix aacraid not to reset during kexec (Joe Jin) [orabug 8516042]
• [rds] Patch rds to 1.4.2-20 (Andy Grover) [orabug 9471572, 9344105]
  RDS: Fix BUG_ONs to not fire when in a tasklet
  ipoib: Fix lockup of the tx queue
  RDS: Do not call set_page_dirty() with irqs off (Sherman Pun)
  RDS: Properly unmap when getting a remote access error (Tina Yang)
  RDS: Fix locking in rds_send_drop_to()
• [xen] PVHVM guest with PoD crashes under memory pressure (Chuck Anderson)
  [orabug 9107465]
• [xen] PV guest with FC HBA hangs during shutdown (Chuck Anderson)
  [orabug 9764220]
• Support 256GB+ memory for pv guest (Mukesh Rathor) [orabug 9450615]
• fix overcommit memory to use percpu_counter for el5 (KOSAKI Motohiro,
  Guru Anbalagane) [orabug 6124033]
• [ipmi] make configurable timeouts for kcs of ipmi [orabug 9752208]
• [ib] fix memory corruption (Andy Grover) [orabug 9972346]
• [aio] patch removes limit on number of retries (Srinivas Eeda) [orabug 10044782]
• [loop] Do not call loop_unplug for not configured loop device (orabug 10314497)
  [2.6.18-274.17.1.el5]
• Revert: [block] add and use scsi_blk_cmd_ioctl (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• Revert: [block] fail SCSI passthrough ioctls on partition devices (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• Revert: [dm] do not forward ioctls from logical volumes to the underlying device (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• Revert: [scsi] fix 32-on-64 block device ioctls (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
  [2.6.18-274.16.1.el5]
• [scsi] fix 32-on-64 block device ioctls (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
  [2.6.18-274.15.1.el5]
• [net] e1000e: Avoid wrong check on TX hang (Dean Nelson) [766485 746272]
• [fs] xfs: Fix memory corruption in xfs_readlink (Carlos Maiolino) [749159 749160] {CVE-2011-4077}
• [pci] intel-iommu: Default to non-coherent for unattached domains (Don Dutile) [766803 753924]
• [fs] nfs: remove BUG() from encode_share_access() (Jeff Layton) [755442 754901] {CVE-2011-4324}
• [misc] irq: Check for spurious IRQ only on disabled IRQs (Prarit Bhargava) [759387 756412]
• [fs] hfs: add sanity check for file name length (Eric Sandeen) [755432 755433] {CVE-2011-4330}
• [fs] proc: Fix select on /proc files without ->poll (David Howells) [755483 751214]
• [fs] nfs: Ensure we mark inode as dirty if early exit from commit (Jeff Layton) [755482 714020]
• [x86] apic: ack all pending irqs when crashed/on kexec (hiro muneda) [750460 742079]
• [virt] kvm: fix regression w/ 32 bit KVM clock (Rik van Riel) [747875 753789 751742 731599]
• [virt] kvm: fix lost tick accounting for 32 bit kvm-clock (Rik van Riel) [747875 731599]
• [fs] jbd/jbd2: validate sb->s_first in journal_get_superblock (Eryu Guan) [753343 706810] {CVE-2011-4132}
• [net] igb: enable link power down (Stefan Assmann) [752735 742514]
• [fs] proc: fix oops on invalid /proc/
  /maps access (Johannes Weiner) [747851 747699] {CVE-2011-3637}
• [block] cciss: bump driver version (Tomas Henzl) [758024 714129]
• [block] cciss: need to delay after a PCI Power Management reset (Tomas Henzl) [758024 714129]
• [block] cciss: auto engage scsi susbsystem (Tomas Henzl) [758024 714129]
• [block] cciss: store pdev in hba struct (Tomas Henzl) [758024 714129]
• [block] cciss: use consistent variable names (Tomas Henzl) [758024 714129]
• [block] cciss: add a commandline switch for simple mode (Tomas Henzl) [758024 714129]
• [fs] proc: close race with exec in mem_read() (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [mm] implement access_remote_vm (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [mm] factor out main logic of access_process_vm (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [mm] use mm_struct to resolve gate vma’s in __get_user_pages (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [mm] make in_gate_area take mm_struct instead of a task_struct (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [mm] make get_gate_vma take mm_struct instead of task_struct (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [x86_64] mark assoc mm when running task in 32 bit compat mode (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [misc] sched: add ctx tag to mm running task in ia32 compat mode (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [fs] proc: require the target to be tracable (or yourself) (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [fs] proc: close race in /proc/*/environ (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [fs] proc: report errors in /proc/*/map sanely (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [fs] proc: shift down_read(mmap_sem) to the caller (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [fs] detect exec transition phase with new mm but old creds (Johannes Weiner) [692041 692042] {CVE-2011-1020}
• [net] igb: fix i350 SR-IOV failture (Stefan Assmann) [741877 714313]
• [dm] do not forward ioctls from logical volumes to the underlying device (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• [block] fail SCSI passthrough ioctls on partition devices (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• [block] add and use scsi_blk_cmd_ioctl (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
• [fs] nfs: Fix an O_DIRECT Oops (Jeff Layton) [755457 754620] {CVE-2011-4325}
• [net] sctp: Fix another race during accept/peeloff (Thomas Graf) [757146 714870] {CVE-2011-4348}
• [scsi] isci: fix 32-bit operation when CONFIG_HIGHMEM64G=n (Phillip Lougher) [750458 713904]
• [net] tg3: Only allow phy ioctls while netif_running (Phillip Lougher) [746343 683393]
  [2.6.18-274.14.1.el5]
• [input] evdev: Fix spin lock context in evdev_pass_event() (Don Zickus) [744147 734900]
• [fs] dcache: Fix dentry loop detection deadlock (David Howells) [754129 717959]
• [input] evdev: disable interrupts when processing events (Don Zickus) [744147 734900]
  [2.6.18-274.13.1.el5]
• [fs] dcache: Log ELOOP rather than creating a loop (David Howells) [754129 717959]
• [fs] dcache: Fix loop checks in d_materialise_unique (David Howells) [754129 717959]