Security update for the Linux Kernel (important)

The openSUSE 13.2 kernel was updated to fix various bugs and security
issues.

The following security bugs were fixed:

• CVE-2016-1583: Prevent the usage of mmap when the lower file system does
  not allow it. This could have lead to local privilege escalation when
  ecryptfs-utils was installed and /sbin/mount.ecryptfs_private was setuid
  (bsc#983143).
• CVE-2016-4913: The get_rock_ridge_filename function in fs/isofs/rock.c
  in the Linux kernel mishandles NM (aka alternate name) entries
  containing \0 characters, which allowed local users to obtain sensitive
  information from kernel memory or possibly have unspecified other impact
  via a crafted isofs filesystem (bnc#980725).
• CVE-2016-4580: The x25_negotiate_facilities function in
  net/x25/x25_facilities.c in the Linux kernel did not properly initialize
  a certain data structure, which allowed attackers to obtain sensitive
  information from kernel stack memory via an X.25 Call Request
  (bnc#981267).
• CVE-2016-0758: Tags with indefinite length could have corrupted pointers
  in asn1_find_indefinite_length (bsc#979867).
• CVE-2016-2053: The asn1_ber_decoder function in lib/asn1_decoder.c in
  the Linux kernel allowed attackers to cause a denial of service (panic)
  via an ASN.1 BER file that lacks a public key, leading to mishandling by
  the public_key_verify_signature function in
  crypto/asymmetric_keys/public_key.c (bnc#963762).
• CVE-2016-2187: The gtco_probe function in drivers/input/tablet/gtco.c in
  the Linux kernel allowed physically proximate attackers to cause a
  denial of service (NULL pointer dereference and system crash) via a
  crafted endpoints value in a USB device descriptor (bnc#971919 971944).
• CVE-2016-4482: The proc_connectinfo function in drivers/usb/core/devio.c
  in the Linux kernel did not initialize a certain data structure, which
  allowed local users to obtain sensitive information from kernel stack
  memory via a crafted USBDEVFS_CONNECTINFO ioctl call (bnc#978401
  bsc#978445).
• CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel
  incorrectly relies on the write system call, which allowed local users
  to cause a denial of service (kernel memory write operation) or possibly
  have unspecified other impact via a uAPI interface (bnc#979548
  bsc#980363).
• CVE-2016-3672: The arch_pick_mmap_layout function in arch/x86/mm/mmap.c
  in the Linux kernel did not properly randomize the legacy base address,
  which made it easier for local users to defeat the intended restrictions
  on the ADDR_NO_RANDOMIZE flag, and bypass the ASLR protection mechanism
  for a setuid or setgid program, by disabling stack-consumption resource
  limits (bnc#974308).
• CVE-2016-4581: fs/pnode.c in the Linux kernel did not properly traverse
  a mount propagation tree in a certain case involving a slave mount,
  which allowed local users to cause a denial of service (NULL pointer
  dereference and OOPS) via a crafted series of mount system calls
  (bnc#979913).
• CVE-2016-4485: The llc_cmsg_rcv function in net/llc/af_llc.c in the
  Linux kernel did not initialize a certain data structure, which allowed
  attackers to obtain sensitive information from kernel stack memory by
  reading a message (bnc#978821).
• CVE-2015-3288: A security flaw was found in the Linux kernel that there
  was a way to arbitrary change zero page memory. (bnc#979021).
• CVE-2016-4578: sound/core/timer.c in the Linux kernel did not initialize
  certain r1 data structures, which allowed local users to obtain
  sensitive information from kernel stack memory via crafted use of the
  ALSA timer interface, related to the (1) snd_timer_user_ccallback and
  (2) snd_timer_user_tinterrupt functions (bnc#979879).
• CVE-2016-3134: The netfilter subsystem in the Linux kernel did not
  validate certain offset fields, which allowed local users to gain
  privileges or cause a denial of service (heap memory corruption) via an
  IPT_SO_SET_REPLACE setsockopt call (bnc#971126).
• CVE-2016-4486: The rtnl_fill_link_ifmap function in net/core/rtnetlink.c
  in the Linux kernel did not initialize a certain data structure, which
  allowed local users to obtain sensitive information from kernel stack
  memory by reading a Netlink message (bnc#978822).
• 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-2016-4569: The snd_timer_user_params function in sound/core/timer.c
  in the Linux kernel did not initialize a certain data structure, which
  allowed local users to obtain sensitive information from kernel stack
  memory via crafted use of the ALSA timer interface (bnc#979213).
• CVE-2016-2847: fs/pipe.c in the Linux kernel did not limit the amount of
  unread data in pipes, which allowed local users to cause a denial of
  service (memory consumption) by creating many pipes with non-default
  sizes (bnc#970948 974646).
• CVE-2016-3136: The mct_u232_msr_to_state function in
  drivers/usb/serial/mct_u232.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (NULL pointer
  dereference and system crash) via a crafted USB device without two
  interrupt-in endpoint descriptors (bnc#970955).
• CVE-2016-2188: The iowarrior_probe function in
  drivers/usb/misc/iowarrior.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (NULL pointer
  dereference and system crash) via a crafted endpoints value in a USB
  device descriptor (bnc#970956).
• CVE-2016-3138: The acm_probe function in drivers/usb/class/cdc-acm.c in
  the Linux kernel allowed physically proximate attackers to cause a
  denial of service (NULL pointer dereference and system crash) via a USB
  device without both a control and a data endpoint descriptor
  (bnc#970911).
• CVE-2016-3137: drivers/usb/serial/cypress_m8.c in the Linux kernel
  allowed physically proximate attackers to cause a denial of service
  (NULL pointer dereference and system crash) via a USB device without
  both an interrupt-in and an interrupt-out endpoint descriptor, related
  to the cypress_generic_port_probe and cypress_open functions
  (bnc#970970).
• CVE-2016-3951: Double free vulnerability in drivers/net/usb/cdc_ncm.c in
  the Linux kernel allowed physically proximate attackers to cause a
  denial of service (system crash) or possibly have unspecified other
  impact by inserting a USB device with an invalid USB descriptor
  (bnc#974418).
• CVE-2016-3140: The digi_port_init function in
  drivers/usb/serial/digi_acceleport.c in the Linux kernel allowed
  physically proximate attackers to cause a denial of service (NULL
  pointer dereference and system crash) via a crafted endpoints value in a
  USB device descriptor (bnc#970892).
• CVE-2016-2186: The powermate_probe function in
  drivers/input/misc/powermate.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (NULL pointer
  dereference and system crash) via a crafted endpoints value in a USB
  device descriptor (bnc#970958).
• CVE-2016-2185: The ati_remote2_probe function in
  drivers/input/misc/ati_remote2.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (NULL pointer
  dereference and system crash) via a crafted endpoints value in a USB
  device descriptor (bnc#971124).
• CVE-2016-3689: The ims_pcu_parse_cdc_data function in
  drivers/input/misc/ims-pcu.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (system crash) via a
  USB device without both a master and a slave interface (bnc#971628).
• CVE-2016-3156: The IPv4 implementation in the Linux kernel mishandles
  destruction of device objects, which allowed guest OS users to cause a
  denial of service (host OS networking outage) by arranging for a large
  number of IP addresses (bnc#971360).
• CVE-2016-2184: The create_fixed_stream_quirk function in
  sound/usb/quirks.c in the snd-usb-audio driver in the Linux kernel
  allowed physically proximate attackers to cause a denial of service
  (NULL pointer dereference or double free, and system crash) via a
  crafted endpoints value in a USB device descriptor (bnc#971125).
• CVE-2016-3139: The wacom_probe function in
  drivers/input/tablet/wacom_sys.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (NULL pointer
  dereference and system crash) via a crafted endpoints value in a USB
  device descriptor (bnc#970909).
• CVE-2015-8830: Integer overflow in the aio_setup_single_vector function
  in fs/aio.c in the Linux kernel 4.0 allowed local users to cause a
  denial of service or possibly have unspecified other impact via a large
  AIO iovec. NOTE: this vulnerability exists because of a CVE-2012-6701
  regression (bnc#969354 bsc#969355).
• CVE-2016-2782: The treo_attach function in drivers/usb/serial/visor.c in
  the Linux kernel allowed physically proximate attackers to cause a
  denial of service (NULL pointer dereference and system crash) or
  possibly have unspecified other impact by inserting a USB device that
  lacks a (1) bulk-in or (2) interrupt-in endpoint (bnc#968670).
• CVE-2015-8816: The hub_activate function in drivers/usb/core/hub.c in
  the Linux kernel did not properly maintain a hub-interface data
  structure, which allowed physically proximate attackers to cause a
  denial of service (invalid memory access and system crash) or possibly
  have unspecified other impact by unplugging a USB hub device
  (bnc#968010).
• CVE-2015-7566: The clie_5_attach function in drivers/usb/serial/visor.c
  in the Linux kernel allowed physically proximate attackers to cause a
  denial of service (NULL pointer dereference and system crash) or
  possibly have unspecified other impact by inserting a USB device that
  lacks a bulk-out endpoint (bnc#961512).
• CVE-2016-2549: sound/core/hrtimer.c in the Linux kernel did not prevent
  recursive callback access, which allowed local users to cause a denial
  of service (deadlock) via a crafted ioctl call (bnc#968013).
• CVE-2016-2547: sound/core/timer.c in the Linux kernel employs a locking
  approach that did not consider slave timer instances, which allowed
  local users to cause a denial of service (race condition,
  use-after-free, and system crash) via a crafted ioctl call (bnc#968011).
• CVE-2016-2548: sound/core/timer.c in the Linux kernel retains certain
  linked lists after a close or stop action, which allowed local users to
  cause a denial of service (system crash) via a crafted ioctl call,
  related to the (1) snd_timer_close and (2) _snd_timer_stop functions
  (bnc#968012).
• CVE-2016-2546: sound/core/timer.c in the Linux kernel uses an incorrect
  type of mutex, which allowed local users to cause a denial of service
  (race condition, use-after-free, and system crash) via a crafted ioctl
  call (bnc#967975).
• CVE-2016-2545: The snd_timer_interrupt function in sound/core/timer.c in
  the Linux kernel did not properly maintain a certain linked list, which
  allowed local users to cause a denial of service (race condition and
  system crash) via a crafted ioctl call (bnc#967974).
• CVE-2016-2544: Race condition in the queue_delete function in
  sound/core/seq/seq_queue.c in the Linux kernel allowed local users to
  cause a denial of service (use-after-free and system crash) by making an
  ioctl call at a certain time (bnc#967973).
• CVE-2016-2543: The snd_seq_ioctl_remove_events function in
  sound/core/seq/seq_clientmgr.c in the Linux kernel did not verify FIFO
  assignment before proceeding with FIFO clearing, which allowed local
  users to cause a denial of service (NULL pointer dereference and OOPS)
  via a crafted ioctl call (bnc#967972).
• CVE-2015-8709: DISPUTED kernel/ptrace.c in the Linux kernel
  mishandles uid and gid mappings, which allowed local users to gain
  privileges by establishing a user namespace, waiting for a root process
  to enter that namespace with an unsafe uid or gid, and then using the
  ptrace system call. NOTE: the vendor states "there is no kernel bug
  here (bnc#959709 960561 ).
• CVE-2015-8812: drivers/infiniband/hw/cxgb3/iwch_cm.c in the Linux kernel
  did not properly identify error conditions, which allowed remote
  attackers to execute arbitrary code or cause a denial of service
  (use-after-free) via crafted packets (bnc#966437).
• CVE-2016-2384: Double free vulnerability in the snd_usbmidi_create
  function in sound/usb/midi.c in the Linux kernel allowed physically
  proximate attackers to cause a denial of service (panic) or possibly
  have unspecified other impact via vectors involving an invalid USB
  descriptor (bnc#966693).
• 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-2014-9904: The snd_compress_check_input function in
  sound/core/compress_offload.c in the ALSA subsystem in the Linux kernel
  did not properly check for an integer overflow, which allowed local
  users to cause a denial of service (insufficient memory allocation) or
  possibly have unspecified other impact via a crafted
  SNDRV_COMPRESS_SET_PARAMS ioctl call (bnc#986811).
• CVE-2016-5829: Multiple heap-based buffer overflows in the
  hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux
  kernel allow local users to cause a denial of service or possibly have
  unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2)
  HIDIOCSUSAGES ioctl call (bnc#986572 986573).
• CVE-2016-4997: The compat IPT_SO_SET_REPLACE setsockopt implementation
  in the netfilter subsystem in the Linux kernel allowed local users to
  gain privileges or cause a denial of service (memory corruption) by
  leveraging in-container root access to provide a crafted offset value
  that triggers an unintended decrement (bnc#986362 986365 986377).
• CVE-2016-4805: Use-after-free vulnerability in
  drivers/net/ppp/ppp_generic.c in the Linux kernel allowed local users to
  cause a denial of service (memory corruption and system crash, or
  spinlock) or possibly have unspecified other impact by removing a
  network namespace, related to the ppp_register_net_channel and
  ppp_unregister_channel functions (bnc#980371).
• CVE-2016-4470: The key_reject_and_link function in security/keys/key.c
  in the Linux kernel did not ensure that a certain data structure is
  initialized, which allowed local users to cause a denial of service
  (system crash) via vectors involving a crafted keyctl request2 command
  (bnc#984755 984764).
• CVE-2015-6526: The perf_callchain_user_64 function in
  arch/powerpc/perf/callchain.c in the Linux kernel on ppc64 platforms
  allowed local users to cause a denial of service (infinite loop) via a
  deep 64-bit userspace backtrace (bnc#942702).
• CVE-2016-5244: The rds_inc_info_copy function in net/rds/recv.c in the
  Linux kernel did not initialize a certain structure member, which
  allowed remote attackers to obtain sensitive information from kernel
  stack memory by reading an RDS message (bnc#983213).

The following non-security bugs were fixed:

• ALSA: hrtimer: Handle start/stop more properly (bsc#973378).
• ALSA: pcm: Fix potential deadlock in OSS emulation (bsc#968018).
• ALSA: rawmidi: Fix race at copying & updating the position (bsc#968018).
• ALSA: rawmidi: Make snd_rawmidi_transmit() race-free (bsc#968018).
• ALSA: seq: Fix double port list deletion (bsc#968018).
• ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
  (bsc#968018).
• ALSA: seq: Fix leak of pool buffer at concurrent writes (bsc#968018).
• ALSA: seq: Fix lockdep warnings due to double mutex locks (bsc#968018).
• ALSA: seq: Fix race at closing in virmidi driver (bsc#968018).
• ALSA: seq: Fix yet another races among ALSA timer accesses (bsc#968018).
• ALSA: timer: Call notifier in the same spinlock (bsc#973378).
• ALSA: timer: Code cleanup (bsc#968018).
• ALSA: timer: Fix leftover link at closing (bsc#968018).
• ALSA: timer: Fix link corruption due to double start or stop
  (bsc#968018).
• ALSA: timer: Fix race between stop and interrupt (bsc#968018).
• ALSA: timer: Fix wrong instance passed to slave callbacks (bsc#968018).
• ALSA: timer: Protect the whole snd_timer_close() with open race
  (bsc#973378).
• ALSA: timer: Sync timer deletion at closing the system timer
  (bsc#973378).
• ALSA: timer: Use mod_timer() for rearming the system timer (bsc#973378).
• Bluetooth: vhci: Fix race at creating hci device (bsc#971799,bsc#966849).
• Bluetooth: vhci: fix open_timeout vs. hdev race (bsc#971799,bsc#966849).
• Bluetooth: vhci: purge unhandled skbs (bsc#971799,bsc#966849).
• Btrfs: do not use src fd for printk (bsc#980348).
• Refresh patches.drivers/ALSA-hrtimer-Handle-start-stop-more-properly.
  Fix the build error on 32bit architectures.
• Refresh patches.xen/xen-netback-coalesce: Restore copying of SKBs with
  head exceeding page size (bsc#978469).
• Refresh patches.xen/xen3-patch-3.14: Suppress atomic file position
  updates on /proc/xen/xenbus (bsc#970275).
• Subject: [PATCH] USB: xhci: Add broken streams quirk for Frescologic
  device id 1009 (bnc#982706).
• USB: usbip: fix potential out-of-bounds write (bnc#975945).
• af_unix: Guard against other == sk in unix_dgram_sendmsg (bsc#973570).
• backends: guarantee one time reads of shared ring contents (bsc#957988).
• btrfs: do not go readonly on existing qgroup items (bsc#957052).
• btrfs: remove error message from search ioctl for nonexistent tree.
• drm/i915: Fix missing backlight update during panel disablement
  (bsc#941113 boo#901754).
• enic: set netdev->vlan_features (bsc#966245).
• ext4: fix races between buffered IO and collapse / insert range
  (bsc#972174).
• ext4: fix races between page faults and hole punching (bsc#972174).
• ext4: fix races of writeback with punch hole and zero range (bsc#972174).
• ext4: move unlocked dio protection from ext4_alloc_file_blocks()
  (bsc#972174).
• ipv4/fib: do not warn when primary address is missing if in_dev is dead
  (bsc#971360).
• ipvs: count pre-established TCP states as active (bsc#970114).
• net: core: Correct an over-stringent device loop detection (bsc#945219).
• netback: do not use last request to determine minimum Tx credit
  (bsc#957988).
• pciback: Check PF instead of VF for PCI_COMMAND_MEMORY.
• pciback: Save the number of MSI-X entries to be copied later.
• pciback: guarantee one time reads of shared ring contents (bsc#957988).
• series.conf: move cxgb3 patch to network drivers section
• usb: quirk to stop runtime PM for Intel 7260 (bnc#984464).
• x86: standardize mmap_rnd() usage (bnc#974308).