SUSE-SU-2015:2350-1: important: Security update for the Linux Kernel

Wed Dec 23 10:10:36 MST 2015

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2015:2350-1
Rating:             important
References:         #814440 #879378 #879381 #900610 #904348 #904965 
                    #921081 #926709 #926774 #930145 #930770 #930788 
                    #930835 #932805 #935053 #935123 #935757 #937256 
                    #937444 #937969 #937970 #938706 #939207 #939826 
                    #939926 #939955 #940017 #940913 #940946 #941202 
                    #942938 #943786 #944677 #944831 #944837 #944989 
                    #944993 #945691 #945825 #945827 #946078 #946214 
                    #946309 #947957 #948330 #948347 #948521 #949100 
                    #949298 #949502 #949706 #949744 #949936 #949981 
                    #950298 #950750 #950998 #951440 #952084 #952384 
                    #952579 #952976 #953527 #953799 #953980 #954404 
                    #954628 #954950 #954984 #955354 #955673 #956709 

Cross-References:   CVE-2015-0272 CVE-2015-5157 CVE-2015-5307
                    CVE-2015-6937 CVE-2015-7509 CVE-2015-7799
                    CVE-2015-7872 CVE-2015-7990 CVE-2015-8104
                    CVE-2015-8215
Affected Products:
                    SUSE Linux Enterprise Real Time Extension 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 10 vulnerabilities and has 62 fixes
   is now available.

Description:

   The SUSE Linux Enterprise 11 SP4 Realtime kernel was updated to receive
   various security and bugfixes.

   Following security bugs were fixed:
   - CVE-2015-7509: Mounting a prepared ext2 filesystem as ext4 could lead to
     a local denial of service (crash) (bsc#956709).
   - CVE-2015-7799: The slhc_init function in drivers/net/slip/slhc.c in the
     Linux kernel did not ensure that certain slot numbers are valid, which
     allowed local users to cause a denial of service (NULL pointer
     dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call
     (bnc#949936).
   - 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-2015-5157: 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 937970 938706 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).

   The following non-security bugs were fixed:
   - af_xhci: avoid path quiesce of severed path in shutdown() (bnc#946214,
     LTC#131684).
   - ahci: Add Device ID for Intel Sunrise Point PCH (bsc#953799).
   - alsa: hda - Disable 64bit address for Creative HDA controllers
     (bnc#814440).
   - blktap: also call blkif_disconnect() when frontend switched to closed
     (bsc#952976).
   - blktap: refine mm tracking (bsc#952976).
   - cachefiles: Avoid deadlocks with fs freezing (bsc#935123).
   - 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).
   - drivers: hv: do not do hypercalls when hypercall_page is NULL.
   - drivers: hv: kvp: move poll_channel() to hyperv_vmbus.h.
   - drivers: hv: util: move kvp/vss function declarations to hyperv_vmbus.h.
   - drivers: hv: vmbus: add special crash handler (bnc#930770).
   - drivers: hv: vmbus: add special kexec handler.
   - drivers: hv: vmbus: Get rid of some unused definitions.
   - drivers: hv: vmbus: Implement the protocol for tearing down vmbus state.
   - drivers: hv: vmbus: kill tasklets on module unload.
   - drivers: hv: vmbus: prefer "die" notification chain to 'panic'.
   - drivers: hv: vmbus: remove hv_synic_free_cpu() call from
     hv_synic_cleanup().
   - drivers: hv: vmbus: unregister panic notifier on module unload.
   - driver: Vmxnet3: Fix ethtool -S to return correct rx queue stats
     (bsc#950750).
   - drm/i915: add hotplug activation period to hotplug update mask
     (bsc#953980).
   - drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt,
     v2 (bsc#942938).
   - drm/i915: Fix DDC probe for passive adapters (bsc#900610, fdo#85924).
   - fix lpfc_send_rscn_event allocation size claims bnc#935757
   - fs: Avoid deadlocks of fsync_bdev() and fs freezing (bsc#935123).
   - fs: Fix deadlocks between sync and fs freezing (bsc#935123).
   - 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/srp: Avoid skipping srp_reset_host() after a transport error
     (bsc#904965).
   - IB/srp: Fix a sporadic crash triggered by cable pulling (bsc#904965).
   - Import SP4-RT GA kabi files
   - ipr: Fix incorrect trace indexing (bsc#940913).
   - ipr: Fix invalid array indexing for HRRQ (bsc#940913).
   - ipv6: fix tunnel error handling (bsc#952579).
   - ipvs: drop first packet to dead server (bsc#946078).
   - ipvs: Fix reuse connection if real server is dead (bnc#945827).
   - kernel: correct uc_sigmask of the compat signal frame (bnc#946214,
     LTC#130124).
   - kernel: fix incorrect use of DIAG44 in continue_trylock_relax()
     (bnc#946214, LTC#132100).
   - kexec: Fix race between panic() and crash_kexec() called directly
     (bnc#937444).
   - keys: Fix race between key destruction and finding a keyring by name
     (bsc#951440).
   - ktime: add ktime_after and ktime_before helpe (bsc#904348).
   - lib/string.c: introduce memchr_inv() (bnc#930788).
   - lpfc: Fix cq_id masking problem (bsc#944677).
   - 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: fix GFP_THISNODE callers and clarify (bsc#954950, VM Functionality).
   - 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).
   - mm: remove GFP_THISNODE (bsc#954950, VM Functionality).
   - mm: sl[au]b: add knowledge of PFMEMALLOC reserve pages (Swap over NFS
     (fate#304949)).
   - Modified -rt patches: 343 of 434, noise elided.
   - net/core: Add VF link state control policy (bsc#950298).
   - netfilter: xt_recent: fix namespace destroy path (bsc#879378).
   - NFSv4: Fix two infinite loops in the mount code (bsc#954628).
   - panic/x86: Allow cpus to save registers even if they (bnc#940946).
   - panic/x86: Fix re-entrance problem due to panic on (bnc#937444).
   - pci: Add dev_flags bit to access VPD through function 0 (bnc#943786).
   - 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).
   - qla2xxx: Remove unavailable firmware files (bsc#921081).
   - qlge: Fix qlge_update_hw_vlan_features to handle if interface is down
     (bsc#930835).
   - quota: Fix deadlock with suspend and quotas (bsc#935123).
   - rcu: Eliminate deadlock between CPU hotplug and expedited grace periods
     (bsc#949706).
   - Refresh patches.xen/1282-usbback-limit-copying.patch (bsc#941202).
   - rtc: cmos: Cancel alarm timer if alarm time is equal to now+1 seconds
     (bsc#930145).
   - rtnetlink: Fix VF IFLA policy (bsc#950298).
   - rtnetlink: fix VF info size (bsc#950298).
   - s390/dasd: fix disconnected device with valid path mask (bnc#946214,
     LTC#132707).
   - s390/dasd: fix invalid PAV assignment after suspend/resume (bnc#946214,
     LTC#132706).
   - s390/dasd: fix list_del corruption after lcu changes (bnc#954984,
     LTC#133077).
   - s390/pci: handle events for unused functions (bnc#946214, LTC#130628).
   - s390/pci: improve handling of hotplug event 0x301 (bnc#946214,
     LTC#130628).
   - s390/pci: improve state check when processing hotplug events
     (bnc#946214, LTC#130628).
   - sched/core: Fix task and run queue sched_info::run_delay inconsistencies
     (bnc#949100).
   - scsi: hosts: update to use ida_simple for host_no (bsc#939926)
   - sg: fix read() error reporting (bsc#926774).
   - sunrpc: refactor rpcauth_checkverf error returns (bsc#955673).
   - Update patches.fixes/fanotify-fix-deadlock-during-thread-exit.patch
     (bsc#935053, bsc#926709). Add bug reference.
   - usbback: correct copy length for partial transfers (bsc#941202).
   - usbvision fix overflow of interfaces array (bnc#950998).
   - usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
     (bnc#944989).
   - veth: extend device features (bsc#879381).
   - vfs: Provide function to get superblock and wait for it to thaw
     (bsc#935123).
   - vmxnet3: adjust ring sizes when interface is down (bsc#950750).
   - vmxnet3: fix ethtool ring buffer size setting (bsc#950750).
   - writeback: Skip writeback for frozen filesystem (bsc#935123).
   - x86/evtchn: make use of PHYSDEVOP_map_pirq.
   - 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, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
     (fate#317533, bnc#937256).
   - xen: x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
     (fate#317533, bnc#937256).
   - 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: Calculate old endpoints correctly on device reset (bnc#944831).
   - xhci: change xhci 1.0 only restrictions to support xhci 1.1 (bnc#949502).
   - xhci: fix isoc endpoint dequeue from advancing too far on transaction
     error (bnc#944837).
   - xhci: For streams the css flag most be read from the stream-ctx on ep
     stop (bnc#945691).
   - xhci: silence TD warning (bnc#939955).
   - xhci: use uninterruptible sleep for waiting for internal operations
     (bnc#939955).

Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Real Time Extension 11-SP4:

      zypper in -t patch slertesp4-kernel-rt-20151204-12284=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-rt-20151204-12284=1

   To bring your system up-to-date, use "zypper patch".

Package List:

   - SUSE Linux Enterprise Real Time Extension 11-SP4 (x86_64):

      kernel-rt-3.0.101.rt130-48.1
      kernel-rt-base-3.0.101.rt130-48.1
      kernel-rt-devel-3.0.101.rt130-48.1
      kernel-rt_trace-3.0.101.rt130-48.1
      kernel-rt_trace-base-3.0.101.rt130-48.1
      kernel-rt_trace-devel-3.0.101.rt130-48.1
      kernel-source-rt-3.0.101.rt130-48.1
      kernel-syms-rt-3.0.101.rt130-48.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64):

      kernel-rt-debuginfo-3.0.101.rt130-48.1
      kernel-rt-debugsource-3.0.101.rt130-48.1
      kernel-rt_debug-debuginfo-3.0.101.rt130-48.1
      kernel-rt_debug-debugsource-3.0.101.rt130-48.1
      kernel-rt_trace-debuginfo-3.0.101.rt130-48.1
      kernel-rt_trace-debugsource-3.0.101.rt130-48.1

References:

   https://www.suse.com/security/cve/CVE-2015-0272.html
   https://www.suse.com/security/cve/CVE-2015-5157.html
   https://www.suse.com/security/cve/CVE-2015-5307.html
   https://www.suse.com/security/cve/CVE-2015-6937.html
   https://www.suse.com/security/cve/CVE-2015-7509.html
   https://www.suse.com/security/cve/CVE-2015-7799.html
   https://www.suse.com/security/cve/CVE-2015-7872.html
   https://www.suse.com/security/cve/CVE-2015-7990.html
   https://www.suse.com/security/cve/CVE-2015-8104.html
   https://www.suse.com/security/cve/CVE-2015-8215.html
   https://bugzilla.suse.com/814440
   https://bugzilla.suse.com/879378
   https://bugzilla.suse.com/879381
   https://bugzilla.suse.com/900610
   https://bugzilla.suse.com/904348
   https://bugzilla.suse.com/904965
   https://bugzilla.suse.com/921081
   https://bugzilla.suse.com/926709
   https://bugzilla.suse.com/926774
   https://bugzilla.suse.com/930145
   https://bugzilla.suse.com/930770
   https://bugzilla.suse.com/930788
   https://bugzilla.suse.com/930835
   https://bugzilla.suse.com/932805
   https://bugzilla.suse.com/935053
   https://bugzilla.suse.com/935123
   https://bugzilla.suse.com/935757
   https://bugzilla.suse.com/937256
   https://bugzilla.suse.com/937444
   https://bugzilla.suse.com/937969
   https://bugzilla.suse.com/937970
   https://bugzilla.suse.com/938706
   https://bugzilla.suse.com/939207
   https://bugzilla.suse.com/939826
   https://bugzilla.suse.com/939926
   https://bugzilla.suse.com/939955
   https://bugzilla.suse.com/940017
   https://bugzilla.suse.com/940913
   https://bugzilla.suse.com/940946
   https://bugzilla.suse.com/941202
   https://bugzilla.suse.com/942938
   https://bugzilla.suse.com/943786
   https://bugzilla.suse.com/944677
   https://bugzilla.suse.com/944831
   https://bugzilla.suse.com/944837
   https://bugzilla.suse.com/944989
   https://bugzilla.suse.com/944993
   https://bugzilla.suse.com/945691
   https://bugzilla.suse.com/945825
   https://bugzilla.suse.com/945827
   https://bugzilla.suse.com/946078
   https://bugzilla.suse.com/946214
   https://bugzilla.suse.com/946309
   https://bugzilla.suse.com/947957
   https://bugzilla.suse.com/948330
   https://bugzilla.suse.com/948347
   https://bugzilla.suse.com/948521
   https://bugzilla.suse.com/949100
   https://bugzilla.suse.com/949298
   https://bugzilla.suse.com/949502
   https://bugzilla.suse.com/949706
   https://bugzilla.suse.com/949744
   https://bugzilla.suse.com/949936
   https://bugzilla.suse.com/949981
   https://bugzilla.suse.com/950298
   https://bugzilla.suse.com/950750
   https://bugzilla.suse.com/950998
   https://bugzilla.suse.com/951440
   https://bugzilla.suse.com/952084
   https://bugzilla.suse.com/952384
   https://bugzilla.suse.com/952579
   https://bugzilla.suse.com/952976
   https://bugzilla.suse.com/953527
   https://bugzilla.suse.com/953799
   https://bugzilla.suse.com/953980
   https://bugzilla.suse.com/954404
   https://bugzilla.suse.com/954628
   https://bugzilla.suse.com/954950
   https://bugzilla.suse.com/954984
   https://bugzilla.suse.com/955354
   https://bugzilla.suse.com/955673
   https://bugzilla.suse.com/956709