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.


    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
    - 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
    - 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
    - blacklist.conf: blacklisted ba4877b9ca51f80b5d30f304a46762f0509e1635
    - 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)
    - 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
    - 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
    - pipe: actually allow root to exceed the pipe buffer limits (git-fixes).
    - posix-timers: Protect posix clock array access against speculation
    - powerpc/fadump: Add a warning when 'fadump_reserve_mem=' is used
    - powerpc/fadump: reuse crashkernel parameter for fadump memory
    reservation (bnc#1032084).
    - powerpc/fadump: update documentation about crashkernel parameter reuse
    - powerpc/fadump: use 'fadump_reserve_mem=' when specified (bnc#1032084).
    - powerpc/pseries: Support firmware disable of RFI flush (bsc#1068032,
    - qeth: repair SBAL elements calculation (bnc#1085513, LTC#165484).
    - s390/qeth: fix underestimated count of buffer elements (bnc#1082091,
    - 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
    - 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
    - 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
    - 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

    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