Security update for the Linux Kernel (important)

The SUSE Linux Enterprise 11 SP3 Realtime kernel was updated to receive
various security and bugfixes.

Following security bugs were fixed:

• CVE-2015-8104: The KVM subsystem in the Linux kernel allowed guest OS
  users to cause a denial of service (host OS panic or hang) by triggering
  many #DB (aka Debug) exceptions, related to svm.c (bnc#954404).
• CVE-2015-5307: The KVM subsystem in the Linux kernel allowed guest OS
  users to cause a denial of service (host OS panic or hang) by triggering
  many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c
  (bnc#953527).
• CVE-2015-7990: RDS: Verify the underlying transport exists before
  creating a connection, preventing possible DoS (bsc#952384,
  CVE-2015-7990).
• CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel on the
  x86_64 platform mishandled IRET faults in processing NMIs that
  occurred during userspace execution, which might allow local users to
  gain privileges by triggering an NMI (bnc#937969 bnc#937970 bnc#938706
  bnc#939207).
• CVE-2015-7872: The key_gc_unused_keys function in security/keys/gc.c in
  the Linux kernel allowed local users to cause a denial of service (OOPS)
  via crafted keyctl commands (bnc#951440).
• CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in the Linux kernel
  did not validate attempted changes to the MTU value, which allowed
  context-dependent attackers to cause a denial of service (packet loss)
  via a value that is (1) smaller than the minimum compliant value or (2)
  larger than the MTU of an interface, as demonstrated by a Router
  Advertisement (RA) message that is not validated by a daemon, a
  different vulnerability than CVE-2015-0272. NOTE: the scope of
  CVE-2015-0272 is limited to the NetworkManager product. (bnc#955354).
• CVE-2015-6937: The __rds_conn_create function in net/rds/connection.c in
  the Linux kernel allowed local users to cause a denial of service (NULL
  pointer dereference and system crash) or possibly have unspecified
  other impact by using a socket that was not properly bound (bnc#945825).
• CVE-2015-6252: The vhost_dev_ioctl function in drivers/vhost/vhost.c in
  the Linux kernel allowed local users to cause a denial of service
  (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers
  permanent file-descriptor allocation (bnc#942367).

The following non-security bugs were fixed:

• alsa: hda - Disable 64bit address for Creative HDA controllers
  (bnc#814440).
• btrfs: fix hang when failing to submit bio of directIO (bnc#942688).
• btrfs: fix memory corruption on failure to submit bio for direct IO
  (bnc#942688).
• btrfs: fix put dio bio twice when we submit dio bio fail (bnc#942688).
• dm: do not start current request if it would’ve merged with the previous
  (bsc#904348).
• dm: impose configurable deadline for dm_request_fn’s merge heuristic
  (bsc#904348).
• dm-snap: avoid deadock on s->lock when a read is split (bsc#939826).
• dm sysfs: introduce ability to add writable attributes (bsc#904348).
• drm/i915: Add bit field to record which pins have received HPD events
  (v3) (bsc#942938).
• drm/I915: Add enum hpd_pin to intel_encoder (bsc#942938).
• drm/i915: add hotplug activation period to hotplug update mask
  (bsc#953980).
• drm/i915: Add HPD IRQ storm detection (v5) (bsc#942938).
• drm/i915: Add messages useful for HPD storm detection debugging (v2)
  (bsc#942938).
• drm/i915: Add Reenable Timer to turn Hotplug Detection back on (v4)
  (bsc#942938).
• drm/i915: assert_spin_locked for pipestat interrupt enable/disable
  (bsc#942938).
• drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt
  (bsc#942938).
• drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt,
  v2 (bsc#942938).
• drm/i915: clear crt hotplug compare voltage field before setting
  (bsc#942938).
• drm/i915: close tiny race in the ilk pcu even interrupt setup
  (bsc#942938).
• drm/i915: Convert HPD interrupts to make use of HPD pin assignment in
  encoders (v2) (bsc#942938).
• drm/i915: Disable HPD interrupt on pin when irq storm is detected (v3)
  (bsc#942938).
• drm/i915: Do not WARN nor handle unexpected hpd interrupts on gmch
  platforms (bsc#942938).
• drm/i915: Enable hotplug interrupts after querying hw capabilities
  (bsc#942938).
• drm/i915: Fix DDC probe for passive adapters (bsc#900610, fdo#85924).
• drm/i915: fix hotplug event bit tracking (bsc#942938).
• drm/i915: Fix hotplug interrupt enabling for SDVOC (bsc#942938).
• drm/i915: fix hpd interrupt register locking (bsc#942938).
• drm/i915: fix hpd work vs. flush_work in the pageflip code deadlock
  (bsc#942938).
• drm/i915: fix locking around ironlake_enable|disable_display_irq
  (bsc#942938).
• drm/i915: Fix up sdvo hpd pins for i965g/gm (bsc#942938).
• drm/i915: fold the hpd_irq_setup call into intel_hpd_irq_handler
  (bsc#942938).
• drm/i915: fold the no-irq check into intel_hpd_irq_handler (bsc#942938).
• drm/i915: fold the queue_work into intel_hpd_irq_handler (bsc#942938).
• drm/i915: Get rid if the "hotplug_supported_mask" in struct
  drm_i915_private (bsc#942938).
• drm/i915: implement ibx_hpd_irq_setup (bsc#942938).
• drm/i915: Make hpd arrays big enough to avoid out of bounds access
  (bsc#942938).
• drm/i915: Mask out the HPD irq bits before setting them individually
  (bsc#942938).
• drm/i915: Only print hotplug event message when hotplug bit is set
  (bsc#942938).
• drm/i915: Only reprobe display on encoder which has received an HPD
  event (v2) (bsc#942938).
• drm/i915: Queue reenable timer also when enable_hotplug_processing is
  false (bsc#942938).
• drm/i915: (re)init HPD interrupt storm statistics (bsc#942938).
• drm/i915: Remove i965_hpd_irq_setup (bsc#942938).
• drm/i915: Remove pch_rq_mask from struct drm_i915_private (bsc#942938).
• drm/i915: Remove valleyview_hpd_irq_setup (bsc#942938).
• drm/i915: s/hotplug_irq_storm_detect/intel_hpd_irq_handler/ (bsc#942938).
• drm/i915: Use an interrupt save spinlock in intel_hpd_irq_handler()
  (bsc#942938).
• drm/i915: WARN_ONCE() about unexpected interrupts for all chipsets
  (bsc#942938).
• ehci-pci: enable interrupt on BayTrail (bnc926007).
• Fixing wording in patch comment (bsc#923002)
• fix lpfc_send_rscn_event allocation size claims bnc#935757
• hugetlb: simplify migrate_huge_page() (bnc#947957, VM Functionality).
• hwpoison, hugetlb: lock_page/unlock_page does not match for handling a
  free hugepage (bnc#947957, VM Functionality).
• IB/iser: Add Discovery support (bsc#923002).
• IB/iser: Move informational messages from error to info level
  (bsc#923002).
• IB/srp: Avoid skipping srp_reset_host() after a transport error
  (bsc#904965).
• IB/srp: Fix a sporadic crash triggered by cable pulling (bsc#904965).
• inotify: Fix nested sleeps in inotify_read() (bsc#940925).
• ipv6: fix tunnel error handling (bsc#952579).
• ipv6: probe routes asynchronous in rt6_probe (bsc#936118).
• ipvs: drop first packet to dead server (bsc#946078).
• ipvs: Fix reuse connection if real server is dead (bnc#945827).
• kabi: patches.fixes/mm-make-page-pfmemalloc-check-more-robust.patch
  (bnc#920016).
• KEYS: Fix race between key destruction and finding a keyring by name
  (bsc#951440).
• ktime: add ktime_after and ktime_before helpe (bsc#904348).
• libiscsi: Exporting new attrs for iscsi session and connection in sysfs
  (bsc#923002).
• lib/string.c: introduce memchr_inv() (bnc#930788).
• macvlan: Support bonding events bsc#948521
• Make sure XPRT_CONNECTING gets cleared when needed (bsc#946309).
• memory-failure: do code refactor of soft_offline_page() (bnc#947957, VM
  Functionality).
• memory-failure: fix an error of mce_bad_pages statistics (bnc#947957, VM
  Functionality).
• memory-failure: use num_poisoned_pages instead of mce_bad_pages
  (bnc#947957, VM Functionality).
• memory-hotplug: update mce_bad_pages when removing the memory
  (bnc#947957, VM Functionality).
• mm: exclude reserved pages from dirtyable memory 32b fix (bnc#940017,
  bnc#949298).
• mm: make page pfmemalloc check more robust (bnc#920016).
• mm/memory-failure.c: fix wrong num_poisoned_pages in handling memory
  error on thp (bnc#947957, VM Functionality).
• mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate
  successfully (bnc#947957, VM Functionality).
• mm/migrate.c: pair unlock_page() and lock_page() when migrating huge
  pages (bnc#947957, VM Functionality).
• Modified -rt patches: 344 of 435, useless noise elided.
• Moved iscsi kabi patch to patches.kabi (bsc#923002)
• netfilter: nf_conntrack_proto_sctp: minimal multihoming support
  (bsc#932350).
• PCI: Add dev_flags bit to access VPD through function 0 (bnc#943786).
• pci: Add flag indicating device has been assigned by KVM (bnc#777565
  FATE#313819).
• PCI: Add VPD function 0 quirk for Intel Ethernet devices (bnc#943786).
• PCI: Clear NumVFs when disabling SR-IOV in sriov_init() (bnc#952084).
• PCI: delay configuration of SRIOV capability (bnc#952084).
• PCI: Refresh First VF Offset and VF Stride when updating NumVFs
  (bnc#952084).
• PCI: set pci sriov page size before reading SRIOV BAR (bnc#952084).
• PCI: Update NumVFs register when disabling SR-IOV (bnc#952084).
• pktgen: clean up ktime_t helpers (bsc#904348).
• qla2xxx: do not clear slot in outstanding cmd array (bsc#944993).
• qla2xxx: Do not reset adapter if SRB handle is in range (bsc#944993).
• qla2xxx: Remove decrement of sp reference count in abort handler
  (bsc#944993).
• r8169: remember WOL preferences on driver load (bsc#942305).
• rcu: Eliminate deadlock between CPU hotplug and expedited grace periods
  (bsc#949706).
• Refresh patches.xen/1282-usbback-limit-copying.patch (bsc#941202).
• Rename kabi patch appropriately (bsc#923002)
• rtc: cmos: Cancel alarm timer if alarm time is equal to now+1 seconds
  (bsc#930145).
• sched/core: Fix task and run queue sched_info::run_delay inconsistencies
  (bnc#949100).
• scsi: fix scsi_error_handler vs. scsi_host_dev_release race (bnc#942204).
• SCSI: hosts: update to use ida_simple for host_no (bsc#939926)
• SCSI: kabi: allow iscsi disocvery session support (bsc#923002).
• scsi_transport_iscsi: Exporting new attrs for iscsi session and
  connection in sysfs (bsc#923002).
• sg: fix read() error reporting (bsc#926774).
• Update patches.fixes/fanotify-fix-deadlock-during-thread-exit.patch
  (bsc#935053, bsc#926709). Add bug reference.
• usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
  (bnc#944989).
• USB: xhci: do not start a halted endpoint before its new dequeue is set
  (bnc#933721).
• usb: xhci: handle Config Error Change (CEC) in xhci driver (bnc#933721).
• usb: xhci: Prefer endpoint context dequeue pointer over stopped_trb
  (bnc#933721).
• USB: xhci: Reset a halted endpoint immediately when we encounter a stall
  (bnc#933721).
• x86: mm: drop TLB flush from ptep_set_access_flags (bsc#948330).
• x86: mm: only do a local tlb flush in ptep_set_access_flags()
  (bsc#948330).
• x86/tsc: Change Fast TSC calibration failed from error to info
  (bnc#942605).
• xfs: add background scanning to clear eofblocks inodes (bnc#930788).
• xfs: add EOFBLOCKS inode tagging/untagging (bnc#930788).
• xfs: add inode id filtering to eofblocks scan (bnc#930788).
• xfs: add minimum file size filtering to eofblocks scan (bnc#930788).
• xfs: add XFS_IOC_FREE_EOFBLOCKS ioctl (bnc#930788).
• xfs: create function to scan and clear EOFBLOCKS inodes (bnc#930788).
• xfs: create helper to check whether to free eofblocks on inode
  (bnc#930788).
• xfs: Fix lost direct IO write in the last block (bsc#949744).
• xfs: Fix softlockup in xfs_inode_ag_walk() (bsc#948347).
• xfs: introduce a common helper xfs_icluster_size_fsb (bsc#932805).
• xfs: make xfs_free_eofblocks() non-static, return EAGAIN on trylock
  failure (bnc#930788).
• xfs: support a tag-based inode_ag_iterator (bnc#930788).
• xfs: support multiple inode id filtering in eofblocks scan (bnc#930788).
• xfs: use xfs_icluster_size_fsb in xfs_bulkstat (bsc#932805).
• xfs: use xfs_icluster_size_fsb in xfs_ialloc_inode_init (bsc#932805).
• xfs: use xfs_icluster_size_fsb in xfs_ifree_cluster (bsc#932805).
• xfs: use xfs_icluster_size_fsb in xfs_imap (bsc#932805).
• xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
  (bnc#949981).
• xhci: Allocate correct amount of scratchpad buffers (bnc#933721).
• xhci: Calculate old endpoints correctly on device reset (bnc#944831).
• xhci: change xhci 1.0 only restrictions to support xhci 1.1 (bnc#949502).
• xhci: Do not enable/disable RWE on bus suspend/resume (bnc#933721).
• xhci: do not report PLC when link is in internal resume state
  (bnc#933721).
• xhci: fix isoc endpoint dequeue from advancing too far on transaction
  error (bnc#944837).
• xhci: fix reporting of 0-sized URBs in control endpoint (bnc#933721).
• xhci: For streams the css flag most be read from the stream-ctx on ep
  stop (bnc#945691).
• xhci: report U3 when link is in resume state (bnc#933721).
• xhci: rework cycle bit checking for new dequeue pointers (bnc#933721).
• xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256
  (bnc#933721).
• xhci: Treat not finding the event_seg on COMP_STOP the same as
  COMP_STOP_INVAL (bnc#933721).
• XHCI: use uninterruptible sleep for waiting for internal operations
  (bnc#939955).
• xhci: Workaround for PME stuck issues in Intel xhci (bnc#933721).