Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2018:1309-1
Rating: important
References: #1010470 #1013018 #1032084 #1039348 #1050431 #1052943 #1062568 #1062840 #1063416 #1063516 #1065600 #1065999 #1067118 #1067912 #1068032 #1072689 #1072865 #1075088 #1075091 #1075994 #1078669 #1078672 #1078673 #1078674 #1080464 #1080757 #1080813 #1081358 #1082091 #1082424 #1083242 #1083275 #1083483 #1083494 #1084536 #1085113 #1085279 #1085331 #1085513 #1086162 #1087092 #1087209 #1087260 #1087762 #1088147 #1088260 #1089608 #1089665 #1089668 #1089752 #909077 #940776 #943786 #951638
Affected Products:
  • SUSE Linux Enterprise Real Time Extension 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP4

  • An update that solves 18 vulnerabilities and has 36 fixes is now available.

    Description:


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

    The following security bugs were fixed:

    - CVE-2018-10124: The kill_something_info function in kernel/signal.c
    might have allowed local users to cause a denial of service via an
    INT_MIN argument (bnc#1089752).
    - CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have
    allowed local users to cause a denial of service by triggering an
    attempted use of the
    -INT_MIN value (bnc#1089608).
    - CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in
    drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial
    of service (memory consumption) via many read accesses to files in the
    /sys/class/sas_phy directory, as demonstrated by the
    /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1084536).
    - CVE-2018-7566: Buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL
    ioctl write operation to /dev/snd/seq by a local user potentially
    allowing for code execution (bnc#1083483).
    - CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function
    in the ALSA subsystem allowed attackers to gain privileges via
    unspecified vectors (bnc#1088260 1088268).
    - CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel
    function could have beenexploited by malicious NCPFS servers to crash
    the kernel or execute code (bnc#1086162).
    - CVE-2017-13166: Prevent elevation of privilege vulnerability in the
    video driver (bnc#1072865).
    - CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c
    allow local users to cause a denial of service (BUG) by leveraging a
    race condition with __dm_destroy during creation and removal of DM
    devices (bnc#1083242).
    - CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose
    kernel memory addresses. Successful exploitation requires that a USB
    device is attached over IP (bnc#1078674).
    - CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed
    local users to cause a denial of service (infinite loop) by triggering
    use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
    - CVE-2017-16644: The hdpvr_probe function in
    drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a
    denial of service (improper error handling and system crash) or possibly
    have unspecified
    other impact via a crafted USB device (bnc#1067118).
    - CVE-2018-6927: The futex_requeue function in kernel/futex.c allowed
    attackers to cause a denial of service (integer overflow) or possibly
    have unspecified
    other impact by triggering a negative wake or requeue value
    (bnc#1080757).
    - CVE-2017-16914: The "stub_send_ret_submit()" function
    (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of
    service (NULL pointer dereference) via a specially crafted USB over IP
    packet (bnc#1078669).
    - CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c
    allowed physically proximate attackers to obtain sensitive information
    from kernel memory or cause a denial of service (out-of-bounds read) by
    connecting a device, as demonstrated by a Logitech DJ receiver
    (bnc#1010470).
    - CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c
    attempted to support a FRAGLIST feature without proper memory
    allocation, which allowed guest OS users to cause a denial of service
    (buffer overflow and memory corruption) via a crafted sequence of
    fragmented packets (bnc#940776).
    - CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in
    block/bio.c did unbalanced refcounting when a SCSI I/O vector had small
    consecutive buffers belonging to the same page. The bio_add_pc_page
    function merged them into one, but the page reference was never dropped.
    This caused a memory leak and possible system lockup (exploitable
    against the host OS by a guest OS user, if a SCSI disk is passed through
    to a virtual machine) due to an
    out-of-memory condition (bnc#1062568).
    - CVE-2017-16912: The "get_pipe()" function (drivers/usb/usbip/stub_rx.c)
    allowed attackers to cause a denial of service (out-of-bounds read) via
    a specially crafted USB over IP packet (bnc#1078673).
    - CVE-2017-16913: The "stub_recv_cmd_submit()" function
    (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT packets allowed
    attackers to cause a denial of service (arbitrary memory allocation) via
    a specially crafted USB over IP packet (bnc#1078672).

    The following non-security bugs were fixed:

    - Integrate fixes resulting from bsc#1088147 More info in the respective
    commit messages.
    - KABI: x86/kaiser: properly align trampoline stack.
    - KEYS: do not let add_key() update an uninstantiated key (bnc#1063416).
    - KEYS: prevent creating a different user's keyrings (bnc#1065999).
    - NFSv4: fix getacl head length estimation (git-fixes).
    - PCI: Use function 0 VPD for identical functions, regular VPD for others
    (bnc#943786 git-fixes).
    - Revert "USB: cdc-acm: fix broken runtime suspend" (bsc#1067912)
    - Subject: af_iucv: enable control sends in case of SEND_SHUTDOWN
    (bnc#1085513, LTC#165135).
    - blacklist.conf: blacklisted 7edaeb6841df ("kernel/watchdog: Prevent
    false positives with turbo modes") (bnc#1063516)
    - blacklist.conf: blacklisted 9fbc1f635fd0bd28cb32550211bf095753ac637a
    (bnc#1089665)
    - blacklist.conf: blacklisted ba4877b9ca51f80b5d30f304a46762f0509e1635
    (bnc#1089668)
    - cifs: fix buffer overflow in cifs_build_path_to_root() (bsc#1085113).
    - drm/mgag200: fix a test in mga_vga_mode_valid() (bsc#1087092).
    - hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers)
    (bnc#1013018).
    - hrtimer: Reset hrtimer cpu base proper on CPU hotplug (bnc#1013018).
    - ide-cd: workaround VMware ESXi cdrom emulation bug (bsc#1080813).
    - ipc/msg: introduce msgctl(MSG_STAT_ANY) (bsc#1072689).
    - ipc/sem: introduce semctl(SEM_STAT_ANY) (bsc#1072689).
    - ipc/shm: introduce shmctl(SHM_STAT_ANY) (bsc#1072689).
    - jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
    (git-fixes).
    - leds: do not overflow sysfs buffer in led_trigger_show (bsc#1080464).
    - media: cpia2: Fix a couple off by one bugs (bsc#1050431).
    - mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack
    (bnc#1039348).
    - pipe: actually allow root to exceed the pipe buffer limits (git-fixes).
    - posix-timers: Protect posix clock array access against speculation
    (bnc#1081358).
    - powerpc/fadump: Add a warning when 'fadump_reserve_mem=' is used
    (bnc#1032084).
    - powerpc/fadump: reuse crashkernel parameter for fadump memory
    reservation (bnc#1032084).
    - powerpc/fadump: update documentation about crashkernel parameter reuse
    (bnc#1032084).
    - powerpc/fadump: use 'fadump_reserve_mem=' when specified (bnc#1032084).
    - powerpc/pseries: Support firmware disable of RFI flush (bsc#1068032,
    bsc#1075088).
    - qeth: repair SBAL elements calculation (bnc#1085513, LTC#165484).
    - s390/qeth: fix underestimated count of buffer elements (bnc#1082091,
    LTC#164529).
    - scsi: sr: workaround VMware ESXi cdrom emulation bug (bsc#1080813).
    - usbnet: Fix a race between usbnet_stop() and the BH (bsc#1083275).
    - x86-64: Move the "user" vsyscall segment out of the data segment
    (bsc#1082424).
    - x86/espfix: Fix return stack in do_double_fault() (bsc#1085279).
    - x86/kaiser: properly align trampoline stack (bsc#1087260).
    - x86/retpoline: do not perform thunk calls in ring3 vsyscall code
    (bsc#1085331).
    - xen/x86/CPU: Check speculation control CPUID bit (bsc#1068032).
    - xen/x86/CPU: Sync CPU feature flags late (bsc#1075994 bsc#1075091).
    - xen/x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and
    sync_regs (bsc#909077).
    - xen/x86/cpu: Factor out application of forced CPU caps (bsc#1075994
    bsc#1075091).
    - xen/x86/cpu: Fix bootup crashes by sanitizing the argument of the
    'clearcpuid=' command-line option (bsc#1065600).
    - xen/x86/entry: Use IBRS on entry to kernel space (bsc#1068032).
    - xen/x86/idle: Toggle IBRS when going idle (bsc#1068032).
    - xen/x86/kaiser: Move feature detection up (bsc#1068032).
    - xfs: check for buffer errors before waiting (bsc#1052943).
    - xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near (bsc#1087762).
    - xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near
    (bsc#1087762).

    Patch Instructions:

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Real Time Extension 11-SP4:
      zypper in -t patch slertesp4-kernel-13604=1
    • SUSE Linux Enterprise Debuginfo 11-SP4:
      zypper in -t patch dbgsp4-kernel-13604=1

    Package List:

    • SUSE Linux Enterprise Real Time Extension 11-SP4 (x86_64):
      • kernel-rt-3.0.101.rt130-69.24.1
      • kernel-rt-base-3.0.101.rt130-69.24.1
      • kernel-rt-devel-3.0.101.rt130-69.24.1
      • kernel-rt_trace-3.0.101.rt130-69.24.1
      • kernel-rt_trace-base-3.0.101.rt130-69.24.1
      • kernel-rt_trace-devel-3.0.101.rt130-69.24.1
      • kernel-source-rt-3.0.101.rt130-69.24.1
      • kernel-syms-rt-3.0.101.rt130-69.24.1
    • SUSE Linux Enterprise Debuginfo 11-SP4 (x86_64):
      • kernel-rt-debuginfo-3.0.101.rt130-69.24.1
      • kernel-rt-debugsource-3.0.101.rt130-69.24.1
      • kernel-rt_debug-debuginfo-3.0.101.rt130-69.24.1
      • kernel-rt_debug-debugsource-3.0.101.rt130-69.24.1
      • kernel-rt_trace-debuginfo-3.0.101.rt130-69.24.1
      • kernel-rt_trace-debugsource-3.0.101.rt130-69.24.1

    References: