SUSE-SU-2016:1102-1: important: Security update for the Linux Kernel

sle-security-updates at lists.suse.com sle-security-updates at lists.suse.com
Tue Apr 19 11:07:56 MDT 2016 

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:1102-1
Rating:             important
References:         #758040 #904035 #912738 #915183 #924919 #933782 
                    #937444 #940017 #940946 #942082 #947128 #948330 
                    #949298 #951392 #951815 #952976 #953369 #954992 
                    #955308 #955654 #955837 #955925 #956084 #956375 
                    #956514 #956708 #956949 #957986 #957988 #957990 
                    #958000 #958463 #958886 #958906 #958912 #958951 
                    #959190 #959312 #959399 #959649 #959705 #961500 
                    #961509 #961516 #961658 #962965 #963276 #963561 
                    #963765 #963767 #964201 #964818 #966094 #966137 
                    #966437 #966693 #967042 #967972 #967973 #967974 
                    #967975 #968011 #968012 #968013 #969307 #969571 
                    
Cross-References:   CVE-2013-7446 CVE-2015-7515 CVE-2015-7550
                    CVE-2015-8539 CVE-2015-8543 CVE-2015-8550
                    CVE-2015-8551 CVE-2015-8552 CVE-2015-8569
                    CVE-2015-8575 CVE-2015-8767 CVE-2015-8785
                    CVE-2015-8812 CVE-2016-0723 CVE-2016-2069
                    CVE-2016-2384 CVE-2016-2543 CVE-2016-2544
                    CVE-2016-2545 CVE-2016-2546 CVE-2016-2547
                    CVE-2016-2548 CVE-2016-2549
Affected Products:
                    SUSE Linux Enterprise Real Time Extension 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 23 vulnerabilities and has 43 fixes
   is now available.

Description:


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

   Following feature was added to kernel-xen:
   - A improved XEN blkfront module was added, which allows more I/O
     bandwidth. (FATE#320200) It is called xen-blkfront in PV, and
     xen-vbd-upstream in HVM mode.

   The following security bugs were fixed:
   - CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the
     Linux kernel allowed local users to bypass intended AF_UNIX socket
     permissions or cause a denial of service (panic) via crafted epoll_ctl
     calls (bnc#955654).
   - CVE-2015-7515: An out of bounds memory access in the aiptek USB driver
     could be used by physical local attackers to crash the kernel
     (bnc#956708).
   - CVE-2015-7550: The keyctl_read_key function in security/keys/keyctl.c in
     the Linux kernel did not properly use a semaphore, which allowed local
     users to cause a denial of service (NULL pointer dereference and system
     crash) or possibly have unspecified other impact via a crafted
     application that leverages a race condition between keyctl_revoke and
     keyctl_read calls (bnc#958951).
   - CVE-2015-8539: The KEYS subsystem in the Linux kernel allowed local
     users to gain privileges or cause a denial of service (BUG) via crafted
     keyctl commands that negatively instantiate a key, related to
     security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and
     security/keys/user_defined.c (bnc#958463).
   - CVE-2015-8543: The networking implementation in the Linux kernel did not
     validate protocol identifiers for certain protocol families, which
     allowed local users to cause a denial of service (NULL function pointer
     dereference and system crash) or possibly gain privileges by leveraging
     CLONE_NEWUSER support to execute a crafted SOCK_RAW application
     (bnc#958886).
   - CVE-2015-8550: Compiler optimizations in the XEN PV backend drivers
     could have lead to double fetch vulnerabilities, causing denial of
     service
     or arbitrary code execution (depending on the configuration)
      (bsc#957988).
   - CVE-2015-8551, CVE-2015-8552: xen/pciback: For
     XEN_PCI_OP_disable_msi[|x] only disable if device has MSI(X) enabled
     (bsc#957990).
   - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect functions in
     drivers/net/ppp/pptp.c in the Linux kernel did not verify an address
     length, which allowed local users to obtain sensitive information from
     kernel memory and bypass the KASLR protection mechanism via a crafted
     application (bnc#959190).
   - CVE-2015-8575: The sco_sock_bind function in net/bluetooth/sco.c in the
     Linux kernel did not verify an address length, which allowed local users
     to obtain sensitive information from kernel memory and bypass the KASLR
     protection mechanism via a crafted application (bnc#959190 bnc#959399).
   - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux kernel did not
     properly manage the relationship between a lock and a socket, which
     allowed local users to cause a denial of service (deadlock) via a
     crafted sctp_accept call (bnc#961509).
   - CVE-2015-8785: The fuse_fill_write_pages function in fs/fuse/file.c in
     the Linux kernel allowed local users to cause a denial of service
     (infinite loop) via a writev system call that triggers a zero length for
     the first segment of an iov (bnc#963765).
   - CVE-2015-8812: A use-after-free flaw was found in the CXGB3 kernel
     driver when the network was considered to be congested. This could be
     used by local attackers to cause machine crashes or potentially code
     execution (bsc#966437).
   - CVE-2016-0723: Race condition in the tty_ioctl function in
     drivers/tty/tty_io.c in the Linux kernel allowed local users to obtain
     sensitive information from kernel memory or cause a denial of service
     (use-after-free and system crash) by making a TIOCGETD ioctl call during
     processing of a TIOCSETD ioctl call (bnc#961500).
   - CVE-2016-2069: Race conditions in TLB syncing was fixed which could leak
     to information leaks (bnc#963767).
   - CVE-2016-2384: Removed a double free in the ALSA usb-audio driver in the
     umidi object which could lead to crashes (bsc#966693).
   - CVE-2016-2543: Added a missing NULL check at remove_events ioctl in ALSA
     that could lead to crashes. (bsc#967972).
   - CVE-2016-2544, CVE-2016-2545, CVE-2016-2546, CVE-2016-2547,
     CVE-2016-2548, CVE-2016-2549: Various race conditions in ALSAs timer
     handling were fixed. (bsc#967975, bsc#967974, bsc#967973, bsc#968011,
     bsc#968012, bsc#968013).

   The following non-security bugs were fixed:
   - Add /etc/modprobe.d/50-xen.conf selecting Xen frontend driver
     implementation (bsc#957986, bsc#956084, bsc#961658).
   - alsa: hda - Add one more node in the EAPD supporting candidate list
     (bsc#963561).
   - alsa: hda - Apply clock gate workaround to Skylake, too (bsc#966137).
   - alsa: hda - disable dynamic clock gating on Broxton before reset
     (bsc#966137).
   - alsa: hda - Fix playback noise with 24/32 bit sample size on BXT
     (bsc#966137).
   - blktap: also call blkif_disconnect() when frontend switched to closed
     (bsc#952976).
   - blktap: refine mm tracking (bsc#952976).
   - block: Always check queue limits for cloned requests (bsc#933782).
   - block: xen-blkfront: Fix possible NULL ptr dereference (bsc#961658
     fate#320200).
   - bnx2x: Add new device ids under the Qlogic vendor (bsc#964818).
   - bnx2x: Alloc 4k fragment for each rx ring buffer element (bsc#953369).
   - bnx2x: fix DMA API usage (bsc#953369).
   - driver core: Add BUS_NOTIFY_REMOVED_DEVICE event (bnc#962965).
   - drivers: xen-blkfront: only talk_to_blkback() when in
     XenbusStateInitialising (bsc#961658 fate#320200).
   - driver: xen-blkfront: move talk_to_blkback to a more suitable place
     (bsc#961658 fate#320200).
   - drm/i915: Change semantics of hw_contexts_disabled (bsc#963276).
   - drm/i915: Evict CS TLBs between batches (bsc#758040).
   - drm/i915: Fix SRC_COPY width on 830/845g (bsc#758040).
   - e1000e: Do not read ICR in Other interrupt (bsc#924919).
   - e1000e: Do not write lsc to ics in msi-x mode (bsc#924919).
   - e1000e: Fix msi-x interrupt automask (bsc#924919).
   - e1000e: Remove unreachable code (bsc#924919).
   - ec2: Update kabi files and start tracking ec2
   - ext3: fix data=journal fast mount/umount hang (bsc#942082).
   - ext3: NULL dereference in ext3_evict_inode() (bsc#942082).
   - firmware: Create directories for external firmware (bsc#959312).
   - firmware: Simplify directory creation (bsc#959312).
   - Fix handling of re-write-before-commit for mmapped NFS pages
     (bsc#964201).
   - ftdi_sio: private backport of TIOCMIWAIT (bnc#956375).
   - iommu/vt-d: Do not change dma domain on dma-mask change (bsc#955925).
   - jbd: Fix unreclaimed pages after truncate in data=journal mode
     (bsc#961516).
   - kabi/severities: Add exception for bnx2x_schedule_sp_rtnl() There is no
     external, 3rd party modules use the symbol and the
     bnx2x_schedule_sp_rtnl symbol is only used in the bnx2x driver.
     (bsc#953369)
   - kbuild: create directory for dir/file.o (bsc#959312).
   - llist/xen-blkfront: implement safe version of llist_for_each_entry
     (bsc#961658 fate#320200).
   - lpfc: Fix null ndlp dereference in target_reset_handler (bsc#951392).
   - memcg: do not hang on OOM when killed by userspace OOM access to memory
     reserves (bnc#969571).
   - mm-memcg-print-statistics-from-live-counters-fix (bnc#969307).
   - nfsv4: Recovery of recalled read delegations is broken (bsc#956514).
   - nvme: Clear BIO_SEG_VALID flag in nvme_bio_split() (bsc#954992).
   - nvme: default to 4k device page size (bsc#967042).
   - pci: leave MEM and IO decoding disabled during 64-bit BAR sizing, too
     (bsc#951815).
   - pci: Update VPD size with correct length (bsc#958906).
   - pl2303: fix TIOCMIWAIT (bnc#959649).
   - pl2303: introduce private disconnect method (bnc#959649).
   - qeth: initialize net_device with carrier off (bnc#958000, LTC#136514).
   - Refresh patches.xen/xen3-08-x86-ldt-make-modify_ldt-synchronous.patch
     (bsc#959705).
   - Refresh patches.xen/xen-vscsi-large-requests (refine fix and also
     address bsc#966094).
   - rt: v3.0-rt relevant @stable-rt patches from v3.2-rt rt111 update
   - s390/cio: collect format 1 channel-path description data (bnc#958000,
     LTC#136434).
   - s390/cio: ensure consistent measurement state (bnc#958000, LTC#136434).
   - s390/cio: fix measurement characteristics memleak (bnc#958000,
     LTC#136434).
   - s390/cio: update measurement characteristics (bnc#958000, LTC#136434).
   - s390/dasd: fix failfast for disconnected devices (bnc#958000,
     LTC#135138).
   - s390/sclp: Determine HSA size dynamically for zfcpdump (bnc#958000,
     LTC#136143).
   - s390/sclp: Move declarations for sclp_sdias into separate header file
     (bnc#958000, LTC#136143).
   - scsi_dh_rdac: always retry MODE SELECT on command lock violation
     (bsc#956949).
   - sunrpc: restore fair scheduling to priority queues (bsc#955308).
   - supported.conf: Add xen-blkfront.
   - tg3: 5715 does not link up when autoneg off (bsc#904035).
   - Update
     patches.fixes/mm-exclude-reserved-pages-from-dirtyable-memory-fix.patch
     (bnc#940017, bnc#949298, bnc#947128).
   - usb: ftdi_sio: fix race condition in TIOCMIWAIT, and abort of TIOCMIWAIT
     when the device is removed (bnc#956375).
   - usb: ftdi_sio: fix status line change handling for TIOCMIWAIT and
     TIOCGICOUNT (bnc#956375).
   - usb: ftdi_sio: fix tiocmget and tiocmset return values (bnc#956375).
   - usb: ftdi_sio: fix tiocmget indentation (bnc#956375).
   - usb: ftdi_sio: optimise chars_in_buffer (bnc#956375).
   - usb: ftdi_sio: refactor modem-control status retrieval (bnc#956375).
   - usb: ftdi_sio: remove unnecessary memset (bnc#956375).
   - usb: ftdi_sio: use ftdi_get_modem_status in chars_in_buffer (bnc#956375).
   - usb: ftdi_sio: use generic chars_in_buffer (bnc#956375).
   - usb: pl2303: clean up line-status handling (bnc#959649).
   - usb: pl2303: only wake up MSR queue on changes (bnc#959649).
   - usb: pl2303: remove bogus delta_msr_wait wake up (bnc#959649).
   - usb: serial: export usb_serial_generic_chars_in_buffer (bnc#956375).
   - usb: serial: ftdi_sio: Add missing chars_in_buffer function (bnc#956375).
   - vmxnet3: fix building without CONFIG_PCI_MSI (bsc#958912).
   - vmxnet3: fix netpoll race condition (bsc#958912).
   - xen/blkback: Persistent grant maps for xen blk drivers (bsc#961658
     fate#320200).
   - xen/blkback: persistent-grants fixes (bsc#961658 fate#320200).
   - xen-blkfront: allow building in our Xen environment (bsc#961658
     fate#320200).
   - xen/blk[front|back]: Enhance discard support with secure erasing support
     (bsc#961658 fate#320200).
   - xen/blk[front|back]: Squash blkif_request_rw and blkif_request_discard
     together (bsc#961658 fate#320200).
   - xen-blkfront: check for null drvdata in blkback_changed
     (XenbusStateClosing) (bsc#961658 fate#320200).
   - xen-blkfront: do not add indirect pages to list when !feature_persistent
     (bsc#961658 fate#320200).
   - xen/blkfront: do not put bdev right after getting it (bsc#961658
     fate#320200).
   - xen-blkfront: drop the use of llist_for_each_entry_safe (bsc#961658
     fate#320200).
   - xen, blkfront: factor out flush-related checks from do_blkif_request()
     (bsc#961658 fate#320200).
   - xen-blkfront: fix accounting of reqs when migrating (bsc#961658
     fate#320200).
   - xen-blkfront: fix a deadlock while handling discard response (bsc#961658
     fate#320200).
   - xen/blkfront: Fix crash if backend does not follow the right states
     (bsc#961658 fate#320200).
   - xen-blkfront: free allocated page (bsc#961658 fate#320200).
   - xen-blkfront: handle backend CLOSED without CLOSING (bsc#961658
     fate#320200).
   - xen-blkfront: handle bvecs with partial data (bsc#961658 fate#320200).
   - xen-blkfront: Handle discard requests (bsc#961658 fate#320200).
   - xen-blkfront: If no barrier or flush is supported, use invalid operation
     (bsc#961658 fate#320200).
   - xen-blkfront: improve aproximation of required grants per request
     (bsc#961658 fate#320200).
   - xen/blkfront: improve protection against issuing unsupported REQ_FUA
     (bsc#961658 fate#320200).
   - xen-blkfront: Introduce a 'max' module parameter to alter the amount of
     indirect segments (bsc#961658 fate#320200).
   - xen-blkfront: make blkif_io_lock spinlock per-device (bsc#961658
     fate#320200).
   - xen-blkfront: plug device number leak in xlblk_init() error path
     (bsc#961658 fate#320200).
   - xen-blkfront: pre-allocate pages for requests (bsc#961658 fate#320200).
   - xen-blkfront: remove frame list from blk_shadow (bsc#961658 fate#320200).
   - xen/blkfront: remove redundant flush_op (bsc#961658 fate#320200).
   - xen-blkfront: remove type check from blkfront_setup_discard (bsc#961658
     fate#320200).
   - xen-blkfront: restore the non-persistent data path (bsc#961658
     fate#320200).
   - xen-blkfront: revoke foreign access for grants not mapped by the backend
     (bsc#961658 fate#320200).
   - xen-blkfront: set blk_queue_max_hw_sectors correctly (bsc#961658
     fate#320200).
   - xen-blkfront: Silence pfn maybe-uninitialized warning (bsc#961658
     fate#320200).
   - xen-blkfront: switch from llist to list (bsc#961658 fate#320200).
   - xen-blkfront: use a different scatterlist for each request (bsc#961658
     fate#320200).
   - xen-block: implement indirect descriptors (bsc#961658 fate#320200).
   - xen: consolidate and simplify struct xenbus_driver instantiation
     (bsc#961658 fate#320200).
   - xen/panic/x86: Allow cpus to save registers even if they (bnc#940946).
   - xen/panic/x86: Fix re-entrance problem due to panic on (bnc#937444).
   - xen/pvhvm: If xen_platform_pci=0 is set do not blow up (v4) (bsc#961658
     fate#320200).
   - xen: Update Xen config files (enable upstream block frontend).
   - xen/x86/mm: Add barriers and document switch_mm()-vs-flush
     synchronization (bnc#963767).
   - xen: x86: mm: drop TLB flush from ptep_set_access_flags (bsc#948330).
   - xen: x86: mm: only do a local tlb flush in ptep_set_access_flags()
     (bsc#948330).
   - xfs: Skip dirty pages in ->releasepage (bnc#912738, bnc#915183).
   - zfcp: fix fc_host port_type with NPIV (bnc#958000, LTC#132479).


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-201603-12516=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-201603-12516=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.rt130-51.1
      kernel-rt-base-3.0.101.rt130-51.1
      kernel-rt-devel-3.0.101.rt130-51.1
      kernel-rt_trace-3.0.101.rt130-51.1
      kernel-rt_trace-base-3.0.101.rt130-51.1
      kernel-rt_trace-devel-3.0.101.rt130-51.1
      kernel-source-rt-3.0.101.rt130-51.1
      kernel-syms-rt-3.0.101.rt130-51.1

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

      kernel-rt-debuginfo-3.0.101.rt130-51.1
      kernel-rt-debugsource-3.0.101.rt130-51.1
      kernel-rt_debug-debuginfo-3.0.101.rt130-51.1
      kernel-rt_debug-debugsource-3.0.101.rt130-51.1
      kernel-rt_trace-debuginfo-3.0.101.rt130-51.1
      kernel-rt_trace-debugsource-3.0.101.rt130-51.1


References:

   https://www.suse.com/security/cve/CVE-2013-7446.html
   https://www.suse.com/security/cve/CVE-2015-7515.html
   https://www.suse.com/security/cve/CVE-2015-7550.html
   https://www.suse.com/security/cve/CVE-2015-8539.html
   https://www.suse.com/security/cve/CVE-2015-8543.html
   https://www.suse.com/security/cve/CVE-2015-8550.html
   https://www.suse.com/security/cve/CVE-2015-8551.html
   https://www.suse.com/security/cve/CVE-2015-8552.html
   https://www.suse.com/security/cve/CVE-2015-8569.html
   https://www.suse.com/security/cve/CVE-2015-8575.html
   https://www.suse.com/security/cve/CVE-2015-8767.html
   https://www.suse.com/security/cve/CVE-2015-8785.html
   https://www.suse.com/security/cve/CVE-2015-8812.html
   https://www.suse.com/security/cve/CVE-2016-0723.html
   https://www.suse.com/security/cve/CVE-2016-2069.html
   https://www.suse.com/security/cve/CVE-2016-2384.html
   https://www.suse.com/security/cve/CVE-2016-2543.html
   https://www.suse.com/security/cve/CVE-2016-2544.html
   https://www.suse.com/security/cve/CVE-2016-2545.html
   https://www.suse.com/security/cve/CVE-2016-2546.html
   https://www.suse.com/security/cve/CVE-2016-2547.html
   https://www.suse.com/security/cve/CVE-2016-2548.html
   https://www.suse.com/security/cve/CVE-2016-2549.html
   https://bugzilla.suse.com/758040
   https://bugzilla.suse.com/904035
   https://bugzilla.suse.com/912738
   https://bugzilla.suse.com/915183
   https://bugzilla.suse.com/924919
   https://bugzilla.suse.com/933782
   https://bugzilla.suse.com/937444
   https://bugzilla.suse.com/940017
   https://bugzilla.suse.com/940946
   https://bugzilla.suse.com/942082
   https://bugzilla.suse.com/947128
   https://bugzilla.suse.com/948330
   https://bugzilla.suse.com/949298
   https://bugzilla.suse.com/951392
   https://bugzilla.suse.com/951815
   https://bugzilla.suse.com/952976
   https://bugzilla.suse.com/953369
   https://bugzilla.suse.com/954992
   https://bugzilla.suse.com/955308
   https://bugzilla.suse.com/955654
   https://bugzilla.suse.com/955837
   https://bugzilla.suse.com/955925
   https://bugzilla.suse.com/956084
   https://bugzilla.suse.com/956375
   https://bugzilla.suse.com/956514
   https://bugzilla.suse.com/956708
   https://bugzilla.suse.com/956949
   https://bugzilla.suse.com/957986
   https://bugzilla.suse.com/957988
   https://bugzilla.suse.com/957990
   https://bugzilla.suse.com/958000
   https://bugzilla.suse.com/958463
   https://bugzilla.suse.com/958886
   https://bugzilla.suse.com/958906
   https://bugzilla.suse.com/958912
   https://bugzilla.suse.com/958951
   https://bugzilla.suse.com/959190
   https://bugzilla.suse.com/959312
   https://bugzilla.suse.com/959399
   https://bugzilla.suse.com/959649
   https://bugzilla.suse.com/959705
   https://bugzilla.suse.com/961500
   https://bugzilla.suse.com/961509
   https://bugzilla.suse.com/961516
   https://bugzilla.suse.com/961658
   https://bugzilla.suse.com/962965
   https://bugzilla.suse.com/963276
   https://bugzilla.suse.com/963561
   https://bugzilla.suse.com/963765
   https://bugzilla.suse.com/963767
   https://bugzilla.suse.com/964201
   https://bugzilla.suse.com/964818
   https://bugzilla.suse.com/966094
   https://bugzilla.suse.com/966137
   https://bugzilla.suse.com/966437
   https://bugzilla.suse.com/966693
   https://bugzilla.suse.com/967042
   https://bugzilla.suse.com/967972
   https://bugzilla.suse.com/967973
   https://bugzilla.suse.com/967974
   https://bugzilla.suse.com/967975
   https://bugzilla.suse.com/968011
   https://bugzilla.suse.com/968012
   https://bugzilla.suse.com/968013
   https://bugzilla.suse.com/969307
   https://bugzilla.suse.com/969571

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