kernel security, bug fix and enhancement update

[2.6.32-279.19.1.el6]

• [drm] i915: dont clobber the pipe param in sanitize_modesetting (Frantisek Hrbata) [876549 857792]
• [drm] i915: Sanitize BIOS debugging bits from PIPECONF (Frantisek Hrbata) [876549 857792]
• [net] fix divide by zero in tcp algorithm illinois (Flavio Leitner) [871920 866514] {CVE-2012-4565}
• [fs] xfs: fix reading of wrapped log data (Dave Chinner) [876499 874322]
• [x86] mm: fix signedness issue in mmap_rnd() (Petr Matousek) [876496 875036]
• [net] WARN if struct ip_options was allocated directly by kmalloc (Jiri Pirko) [877950 872799]
• [fs] block_dev: Fix crash when block device is read and block size is changed at the same time (Frantisek Hrbata) [864826 855906]
• [mm] tracing: Move include of trace/events/kmem.h out of header into slab.c (Jeff Moyer) [864826 855906]
• [mm] slab: Move kmalloc tracepoint out of inline code (Jeff Moyer) [864826 855906]
• [netdrv] bnx2x: organize BDs calculation for stop/resume (Frantisek Hrbata) [874022 819842]
• [netdrv] bnx2x: fix panic when TX ring is full (Michal Schmidt) [874022 819842]
  [2.6.32-279.18.1.el6]
• [scsi] sd: fix crash when UA received on DIF enabled device (Ewan Milne) [876487 865682]
• [mm] hugetlb: fix non-atomic enqueue of huge page (Rafael Aquini) [876101 869750]
• [x86] amd_iommu: attach device fails on the last pci device (Don Dutile) [876493 861164]
• [net] nfs: Fix buffer overflow checking in __nfs4_get_acl_uncached (Frantisek Hrbata) [811794 822871] {CVE-2012-2375}
• [net] nfs: Fix the acl cache size calculation (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] nfs: Fix range checking in __nfs4_get_acl_uncached and __nfs4_proc_set_acl (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] nfs: nfs_getaclargs.acl_len is a size_t (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] nfs: Dont use private xdr_stream fields in decode_getacl (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] nfs: Fix pointer arithmetic in decode_getacl (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] nfs: Simplify the GETATTR attribute length calculation (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] sunrpc: Add the helper xdr_stream_pos (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] sunrpc: Dont decode beyond the end of the RPC reply message (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] sunrpc: Clean up xdr_set_iov() (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [net] sunrpc: xdr_read_pages needs to clear xdr->page_ptr (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [fs] nfs: Avoid beyond bounds copy while caching ACL (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [fs] nfs: Avoid reading past buffer when calling GETACL (Sachin Prabhu) [811794 822871] {CVE-2012-2375}
• [scsi] ibmvfc: Fix double completion on abort timeout (Steve Best) [876088 865115]
• [net] core: allocate skbs on local node (Andy Gospodarek) [876491 843163]
  [2.6.32-279.17.1.el6]
• [mm] Prevent kernel panic in NUMA related system calls after memory hot-add (Larry Woodman) [875382 870350] {CVE-2012-5517}
• [md] Dont truncate size at 4TB for RAID0 and Linear (Jes Sorensen) [866470 865637]
• [fs] ext4: fix undefined bit shift result in ext4_fill_flex_info (Lukas Czerner) [809690 809691] {CVE-2012-2100}
• [fs] ext4: fix undefined behavior in ext4_fill_flex_info() (Lukas Czerner) [809690 809691] {CVE-2012-2100}
• [kernel] sched_rt: Ignore RT queue throttling if idle task has RT policy (Igor Mammedov) [853950 843541]
• [kernel] sched: Create special class for stop/migrate work (Igor Mammedov) [853950 843541]
• [net] ipv6: fix overlap check for fragments (Amerigo Wang) [874550 819952] {CVE-2012-4444}
• [net] ipv6: discard overlapping fragment (Jiri Pirko) [874550 819952] {CVE-2012-4444}
  [2.6.32-279.16.1.el6]
• [lib] Fix rwsem to not hang the system (David Howells) [871854 852847]
  [2.6.32-279.15.1.el6]
• [netdrv] mlx4: Re-design multicast attachments flow (Doug Ledford) [866795 859533]