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HistoryOct 30, 2017 - 7:23 p.m.

Security update for the Linux Kernel (important)






The SUSE Linux Enterprise 12 SP1 LTS kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

  • CVE-2017-15649: net/packet/af_packet.c in the Linux kernel allowed local
    users to gain privileges via crafted system calls that trigger
    mishandling of packet_fanout data structures, because of a race
    condition (involving fanout_add and packet_do_bind) that leads to a
    use-after-free, a different vulnerability than CVE-2017-6346
  • CVE-2017-13080: Wi-Fi Protected Access (WPA and WPA2) allowed
    reinstallation of the Group Temporal Key (GTK) during the group key
    handshake, allowing an attacker within radio range to replay frames from
    access points to clients (bnc#1063667).
  • CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not
    consider the case of a NULL payload in conjunction with a nonzero length
    value, which allowed local users to cause a denial of service (NULL
    pointer dereference and OOPS) via a crafted add_key or keyctl system
    call, a different vulnerability than CVE-2017-12192 (bnc#1045327).
  • CVE-2017-15265: Use-after-free vulnerability in the Linux kernel allowed
    local users to have unspecified impact via vectors related to
    /dev/snd/seq (bnc#1062520).
  • CVE-2017-1000365: The Linux Kernel imposes a size restriction on the
    arguments and environmental strings passed through
    RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but did not take the
    argument and environment pointers into account, which allowed attackers
    to bypass this limitation. (bnc#1039354).
  • CVE-2017-12153: A security flaw was discovered in the
    nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux
    kernel This function did not check whether the required attributes are
    present in a Netlink request. This request can be issued by a user with
    the CAP_NET_ADMIN capability and may result in a NULL pointer
    dereference and system crash (bnc#1058410).
  • CVE-2017-12154: The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the
    Linux kernel did not ensure that the "CR8-load exiting" and "CR8-store
    exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR
    shadow" vmcs12 control, which allowed KVM L2 guest OS users to obtain
    read and write access to the hardware CR8 register (bnc#1058507).
  • CVE-2017-14106: The tcp_disconnect function in net/ipv4/tcp.c in the
    Linux kernel allowed local users to cause a denial of service
    (__tcp_select_window divide-by-zero error and system crash) by
    triggering a disconnect within a certain tcp_recvmsg code path
  • CVE-2017-14140: The move_pages system call in mm/migrate.c in the Linux
    kernel doesn’t check the effective uid of the target process, enabling a
    local attacker to learn the memory layout of a setuid executable despite
    ASLR (bnc#1057179).
  • CVE-2017-14051: An integer overflow in the
    qla2x00_sysfs_write_optrom_ctl function in
    drivers/scsi/qla2xxx/qla_attr.c in the Linux kernel allowed local users
    to cause a denial of service (memory corruption and system crash) by
    leveraging root access (bnc#1056588).
  • CVE-2017-10661: Race condition in fs/timerfd.c in the Linux kernel
    allowed local users to gain privileges or cause a denial of service
    (list corruption or use-after-free) via simultaneous file-descriptor
    operations that leverage improper might_cancel queueing (bnc#1053152).
  • CVE-2017-12762: In /drivers/isdn/i4l/isdn_net.c: A user-controlled
    buffer is copied into a local buffer of constant size using strcpy
    without a length check which can cause a buffer overflow. (bnc#1053148).
  • CVE-2017-8831: The saa7164_bus_get function in
    drivers/media/pci/saa7164/saa7164-bus.c in the Linux kernel allowed
    local users to cause a denial of service (out-of-bounds array access) or
    possibly have unspecified other impact by changing a certain
    sequence-number value, aka a "double fetch" vulnerability (bnc#1037994).
  • CVE-2017-7482: A potential memory corruption was fixed in decoding of
    krb5 principals in the kernels kerberos handling. (bnc#1046107).
  • CVE-2017-7542: The ip6_find_1stfragopt function in
    net/ipv6/output_core.c in the Linux kernel allowed local users to cause
    a denial of service (integer overflow and infinite loop) by leveraging
    the ability to open a raw socket (bnc#1049882).
  • CVE-2017-11176: The mq_notify function in the Linux kernel did not set
    the sock pointer to NULL upon entry into the retry logic. During a
    user-space close of a Netlink socket, it allowed attackers to cause a
    denial of service (use-after-free) or possibly have unspecified other
    impact (bnc#1048275).
  • CVE-2017-7541: The brcmf_cfg80211_mgmt_tx function in
    drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux
    kernel allowed local users to cause a denial of service (buffer overflow
    and system crash) or possibly gain privileges via a crafted
    NL80211_CMD_FRAME Netlink packet (bnc#1049645).
  • CVE-2017-7518: The Linux kernel was vulnerable to an incorrect debug
    exception(#DB) error. It could occur while emulating a syscall
    instruction and potentially lead to guest privilege escalation.
  • CVE-2017-8924: The edge_bulk_in_callback function in
    drivers/usb/serial/io_ti.c in the Linux kernel allowed local users to
    obtain sensitive information (in the dmesg ringbuffer and syslog) from
    uninitialized kernel memory by using a crafted USB device (posing as an
    io_ti USB serial device) to trigger an integer underflow (bnc#1037182
  • CVE-2017-8925: The omninet_open function in drivers/usb/serial/omninet.c
    in the Linux kernel allowed local users to cause a denial of service
    (tty exhaustion) by leveraging reference count mishandling (bnc#1037183
  • CVE-2017-1000380: sound/core/timer.c in the Linux kernel was vulnerable
    to a data race in the ALSA /dev/snd/timer driver resulting in local
    users being able to read information belonging to other users, i.e.,
    uninitialized memory contents might have been disclosed when a read and
    an ioctl happen at the same time (bnc#1044125).
  • CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
    in the Linux kernel is too late in checking whether an overwrite of an
    skb data structure may occur, which allowed local users to cause a
    denial of service (system crash) via crafted system calls (bnc#1041431).
  • CVE-2017-1000363: Linux drivers/char/lp.c Out-of-Bounds Write. Due to a
    missing bounds check, and the fact that parport_ptr integer is static, a
    ‘secure boot’ kernel command line adversary (could happen due to
    bootloader vulns, e.g. Google Nexus 6’s CVE-2016-10277, where due to a
    vulnerability the adversary has partial control over the command line)
    could overflow the parport_nr array in the following code, by appending
    many (>LP_NO) ‘lp=none’ arguments to the command line (bnc#1039456).
  • CVE-2017-9076: The dccp_v6_request_recv_sock function in net/dccp/ipv6.c
    in the Linux kernel mishandled inheritance, which allowed local users to
    cause a denial of service or possibly have unspecified other impact via
    crafted system calls, a related issue to CVE-2017-8890 (bnc#1039885).
  • CVE-2017-9077: The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c
    in the Linux kernel mishandled inheritance, which allowed local users to
    cause a denial of service or possibly have unspecified other impact via
    crafted system calls, a related issue to CVE-2017-8890 (bnc#1040069).
  • CVE-2017-9075: The sctp_v6_create_accept_sk function in net/sctp/ipv6.c
    in the Linux kernel mishandled inheritance, which allowed local users to
    cause a denial of service or possibly have unspecified other impact via
    crafted system calls, a related issue to CVE-2017-8890 (bnc#1039883).
  • CVE-2017-9074: The IPv6 fragmentation implementation in the Linux kernel
    did not consider that the nexthdr field may be associated with an
    invalid option, which allowed local users to cause a denial of service
    (out-of-bounds read and BUG) or possibly have unspecified other impact
    via crafted socket and send system calls (bnc#1039882).
  • CVE-2017-7487: The ipxitf_ioctl function in net/ipx/af_ipx.c in the
    Linux kernel mishandled reference counts, which allowed local users to
    cause a denial of service (use-after-free) or possibly have unspecified
    other impact via a failed SIOCGIFADDR ioctl call for an IPX interface
  • CVE-2017-8890: The inet_csk_clone_lock function in
    net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to
    cause a denial of service (double free) or possibly have unspecified
    other impact by leveraging use of the accept system call (bnc#1038544).
  • CVE-2017-7889: The mm subsystem in the Linux kernel did not properly
    enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allowed
    local users to read or write to kernel memory locations in the first
    megabyte (and bypass slab-allocation access restrictions) via an
    application that opens the /dev/mem file, related to arch/x86/mm/init.c
    and drivers/char/mem.c (bnc#1034405).

The following new features were implemented:

  • the r8152 network driver was updated to support Realtek RTL8152/RTL8153
    Based USB Ethernet Adapters (fate#321482)

The following non-security bugs were fixed:

  • blkback/blktap: do not leak stack data via response ring (bsc#1042863
  • btrfs: Add WARN_ON for qgroup reserved underflow (bsc#1031515).
  • btrfs: Do not clear SGID when inheriting ACLs (bsc#1030552).
  • btrfs: Check qgroup level in kernel qgroup assign (bsc#1001459).
  • btrfs: qgroup: allow to remove qgroup which has parent but no child
  • btrfs: quota: Automatically update related qgroups or mark INCONSISTENT
    flags when assigning/deleting a qgroup relations (bsc#1001459).
  • ceph: Correctly return NXIO errors from ceph_llseek (git-fixes).
  • ceph: fix file open flags on ppc64 (git-fixes).
  • ceph: check i_nlink while converting a file handle to dentry
  • drivers/net: delete non-required instances of include
    <linux/init.h> (bsc#993099).
  • drivers/net/usb: add device id for NVIDIA Tegra USB 3.0 Ethernet
  • drivers/net/usb: Add support for ‘Lenovo OneLink Pro Dock’ (bsc#993099).
  • enic: set skb->hash type properly (bsc#922871).
  • ext2: Do not clear SGID when inheriting ACLs (bsc#1030552).
  • ext4: Do not clear SGID when inheriting ACLs (bsc#1030552).
  • firmware: dmi_scan: Fix ordering of product_uuid (bsc#1030531).
  • fm10k: correctly check if interface is removed (bsc#922855).
  • fs/block_dev: always invalidate cleancache in invalidate_bdev()
  • fs: fix data invalidation in the cleancache during direct IO (git-fixes).
  • fs/xattr.c: zero out memory copied to userspace in getxattr (git-fixes).
  • hv: vmbus: Raise retry/wait limits in vmbus_post_msg() (bsc#1023287,
    bsc#1028217, bsc#1048788).
  • jhash: Update jhash_[321]words functions to use correct initval
  • kABI: mask an include (bsc#994364).
  • md: ensure md devices are freed before module is unloaded (git-fixes).
  • md/raid0: apply base queue limits before disk_stack_limits (git-fixes).
  • md/raid0: update queue parameter in a safer location (git-fixes).
  • md/raid1: do not clear bitmap bit when bad-block-list write fails
  • md/raid10: do not clear bitmap bit when bad-block-list write fails
  • md/raid10: ensure device failure recorded before write request returns
  • mlock: fix mlock count can not decrease in race condition (VM
    Functionality, bsc#1042696).
  • mlx: Revert the mlx5e_tx_notify_hw() changes.(bsc#1033960)
  • mm/huge_memory: replace VM_NO_THP VM_BUG_ON with actual VMA check (VM
    Functionality, bsc#1042832).
  • mm: hugetlb: call huge_pte_alloc() only if ptep is null (VM
    Functionality, bsc#1042832).
  • mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack
  • netfilter: bridge: Fix the build when IPV6 is disabled (bsc#1027149).
  • net: get rid of SET_ETHTOOL_OPS (bsc#993099).
  • net/usb/r8152: add device id for Lenovo TP USB 3.0 Ethernet (bsc#993099).
  • netvsc: get rid of completion timeouts (bsc#1048788).
  • nfs v4.1: Fix Oopsable condition in server callback races (git-fixes).
  • ocfs2: Do not clear SGID when inheriting ACLs (bsc#1030552).
  • pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
  • powerpc: Add missing error check to prom_find_boot_cpu() (bnc#856774).
  • powerpc/book3s: Fix MCE console messages for unrecoverable MCE
  • powerpc/bpf/jit: Disable classic BPF JIT on ppc64le (bsc#1041429,
    [2017-05-29] Pending SUSE Kernel Fixes).
  • powerpc: Fix bad inline asm constraint in create_zero_mask()
  • powerpc/64: Fix flush_(d|i)cache_range() called from modules
  • printk: prevent userland from spoofing kernel messages (bsc#1039721).
  • reiserfs: Do not clear SGID when inheriting ACLs (bsc#1030552).
  • rtl8152: correct speed testing (bsc#993099).
  • r8152: add functions to set EEE (bsc#993099).
  • r8152: add MODULE_VERSION (bsc#993099).
  • r8152: add mutex for hw settings (bsc#993099).
  • r8152: add pre_reset and post_reset (bsc#993099).
  • r8152: add reset_resume function (bsc#993099).
  • r8152: add rtl_ops (bsc#993099).
  • r8152: add skb_cow_head (bsc#993099).
  • r8152: add three functions (bsc#993099).
  • r8152: adjust ALDPS function (bsc#993099).
  • r8152: adjust lpm timer (bsc#993099).
  • r8152: adjust rtl_start_rx (bsc#993099).
  • r8152: adjust rx_bottom (bsc#993099).
  • r8152: adjust r8152_submit_rx (bsc#993099).
  • r8152: adjust the line feed for hw_features (bsc#993099).
  • r8152: adjust usb_autopm_xxx (bsc#993099).
  • r8152: autoresume before setting feature (bsc#993099).
  • r8152: autoresume before setting MAC address (bsc#993099).
  • r8152: calculate the dropped packets for rx (bsc#993099).
  • r8152: call rtl_start_rx after netif_carrier_on (bsc#993099).
  • r8152: clear BMCR_PDOWN (bsc#993099).
  • r8152: clear LINK_OFF_WAKE_EN after autoresume (bsc#993099).
  • r8152: clear SELECTIVE_SUSPEND when autoresuming (bsc#993099).
  • r8152: clear the flag of SCHEDULE_TASKLET in tasklet (bsc#993099).
  • r8152: combine PHY reset with set_speed (bsc#993099).
  • r8152: constify ethtool_ops structures (bsc#993099).
  • r8152: correct some messages (bsc#993099).
  • r8152: correct the rx early size (bsc#993099).
  • r8152: deal with the empty line and space (bsc#993099).
  • r8152: disable ALDPS and EEE before setting PHY (bsc#993099).
  • r8152: disable ALDPS (bsc#993099).
  • r8152: disable MAC clock speed down (bsc#993099).
  • r8152: disable power cut for RTL8153 (bsc#993099).
  • r8152: disable teredo for RTL8152 (bsc#993099).
  • r8152: disable the capability of zero length (bsc#993099).
  • r8152: disable the ECM mode (bsc#993099).
  • r8152: disable the tasklet by default (bsc#993099).
  • r8152: do not enable napi before rx ready (bsc#993099).
  • r8152: ecm and vendor modes coexist (bsc#993099).
  • r8152: fix incorrect type in assignment (bsc#993099).
  • r8152: fix lockup when runtime PM is enabled (bsc#993099).
  • r8152: fix runtime function for RTL8152 (bsc#993099).
  • r8152: fix r8152_csum_workaround function (bsc#993099).
  • r8152: fix setting RTL8152_UNPLUG (bsc#993099).
  • r8152: fix the carrier off when autoresuming (bsc#993099).
  • r8152: fix the checking of the usb speed (bsc#993099).
  • r8152: fix the issue about U1/U2 (bsc#993099).
  • r8152: fix the runtime suspend issues (bsc#993099).
  • r8152: fix the submission of the interrupt transfer (bsc#993099).
  • r8152: fix the wake event (bsc#993099).
  • r8152: fix the warnings and a error from (bsc#993099).
  • r8152: fix the wrong return value (bsc#993099).
  • r8152: fix tx/rx memory overflow (bsc#993099).
  • r8152: fix wakeup settings (bsc#993099).
  • r8152: change rx early size when the mtu is changed (bsc#993099).
  • r8152: change some definitions (bsc#993099).
  • r8152: change the descriptor (bsc#993099).
  • r8152: change the EEE definition (bsc#993099).
  • r8152: change the location of rtl8152_set_mac_address (bsc#993099).
  • r8152: check code with (bsc#993099).
  • r8152: check linking status with netif_carrier_ok (bsc#993099).
  • r8152: check RTL8152_UNPLUG and netif_running before autoresume
  • r8152: check RTL8152_UNPLUG (bsc#993099).
  • r8152: check RTL8152_UNPLUG for rtl8152_close (bsc#993099).
  • r8152: check the status before submitting rx (bsc#993099).
  • r8152: check tx agg list before spin lock (bsc#993099).
  • r8152: check WORK_ENABLE in suspend function (bsc#993099).
  • r8152: increase the tx timeout (bsc#993099).
  • r8152: load the default MAC address (bsc#993099).
  • r8152: modify rtl_ops_init (bsc#993099).
  • r8152: modify the check of the flag of PHY_RESET in set_speed function
  • r8152: modify the method of accessing PHY (bsc#993099).
  • r8152: modify the tx flow (bsc#993099).
  • r8152: move enabling PHY (bsc#993099).
  • r8152: move PHY settings to hw_phy_cfg (bsc#993099).
  • r8152: move rtl8152_unload and ocp_reg_write (bsc#993099).
  • r8152: move r8152b_get_version (bsc#993099).
  • r8152: move some functions (bsc#993099).
  • r8152: move some functions (bsc#993099).
  • r8152: move some functions from probe to open (bsc#993099).
  • r8152: move the actions of saving the information of the device
  • r8152: move the setting for the default speed (bsc#993099).
  • r8152: move the settings of PHY to a work queue (bsc#993099).
  • r8152: nway reset after setting eee (bsc#993099).
  • r8152: redefine REALTEK_USB_DEVICE (bsc#993099).
  • r8152: reduce the frequency of spin_lock (bsc#993099).
  • r8152: reduce the number of Tx (bsc#993099).
  • r8152: remove a netif_carrier_off in rtl8152_open function (bsc#993099).
  • r8152: remove cancel_delayed_work_sync in rtl8152_set_speed (bsc#993099).
  • r8152: remove clearing bp (bsc#993099).
  • r8152: remove generic_ocp_read before writing (bsc#993099).
  • r8152: remove rtl_phy_reset function (bsc#993099).
  • r8152: remove rtl8152_get_stats (bsc#993099).
  • r8152: remove r8153_enable_eee (bsc#993099).
  • r8152: remove sram_read (bsc#993099).
  • r8152: remove the definitions of the PID (bsc#993099).
  • r8152: remove the duplicate init for the list of rx_done (bsc#993099).
  • r8152: remove the setting of LAN_WAKE_EN (bsc#993099).
  • r8152: rename rx_buf_sz (bsc#993099).
  • r8152: rename tx_underun (bsc#993099).
  • r8152: replace get_protocol with vlan_get_protocol (bsc#993099).
  • r8152: replace netdev_alloc_skb_ip_align with napi_alloc_skb
  • r8152: replace netif_rx with netif_receive_skb (bsc#993099).
  • r8152: replace some tabs with spaces (bsc#993099).
  • r8152: replace some types from int to bool (bsc#993099).
  • r8152: replace spin_lock_irqsave and spin_unlock_irqrestore (bsc#993099).
  • r8152: replace strncpy with strlcpy (bsc#993099).
  • r8152: replace tasklet with NAPI (bsc#993099).
  • r8152: replace the return value of rtl_ops_init (bsc#993099).
  • r8152: replace tp->netdev with netdev (bsc#993099).
  • r8152: reset device when tx timeout (bsc#993099).
  • r8152: reset the bmu (bsc#993099).
  • r8152: reset tp->speed before autoresuming in open function
  • r8152: restore hw settings (bsc#993099).
  • r8152: return -EBUSY for runtime suspend (bsc#993099).
  • r8152: save the speed (bsc#993099).
  • r8152: separate USB_RX_EARLY_AGG (bsc#993099).
  • r8152: set disable_hub_initiated_lpm (bsc#993099).
  • r8152: set RTL8152_UNPLUG when finding -ENODEV (bsc#993099).
  • r8152: split DRIVER_VERSION (bsc#993099).
  • r8152: split rtl8152_enable (bsc#993099).
  • r8152: stop submitting intr for -EPROTO (bsc#993099).
  • r8152: support dumping the hw counters (bsc#993099).
  • r8152: support ethtool eee (bsc#993099).
  • r8152: support get_msglevel and set_msglevel (bsc#993099).
  • r8152: support IPv6 (bsc#993099).
  • r8152: support jumbo frame for RTL8153 (bsc#993099).
  • r8152: support nway_reset of ethtool (bsc#993099).
  • r8152: support RTL8153 (bsc#993099).
  • r8152: support runtime suspend (bsc#993099).
  • r8152: support rx checksum (bsc#993099).
  • r8152: support setting rx coalesce (bsc#993099).
  • r8152: support stopping/waking tx queue (bsc#993099).
  • r8152: support the new RTL8153 chip (bsc#993099).
  • r8152: support TSO (bsc#993099).
  • r8152: support VLAN (bsc#993099).
  • r8152: support WOL (bsc#993099).
  • r8152: up the priority of the transmission (bsc#993099).
  • r8152: use BIT macro (bsc#993099).
  • r8152: use eth_hw_addr_random (bsc#993099).
  • r8152: Use kmemdup instead of kmalloc + memcpy (bsc#993099).
  • r8152: use test_and_clear_bit (bsc#993099).
  • r8152: use usleep_range (bsc#993099).
  • r8152: wake up the device before dumping the hw counter (bsc#993099).
  • scsi: qla2xxx: Get mutex lock before checking optrom_state (bsc#1053317).
  • sched/fair: Fix min_vruntime tracking (bnc#1012985).
  • sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded
    systems (bnc#1012985).
  • sched/rt: Fix PI handling vs. sched_setscheduler() (bnc#1012985).
  • sunrpc: Update RPCBIND_MAXNETIDLEN (git-fixes).
  • syscall: fix dereferencing NULL payload with nonzero length
    (bsc#1045327, bsc#1062471).
  • tcp: do not inherit fastopen_req from parent (bsc#1038544).
  • timekeeping: Ignore the bogus sleep time if pm_trace is enabled
  • tracing/kprobes: Enforce kprobes teardown after testing (bnc#1012985).
  • usb: wusbcore: fix NULL-deref at probe (bsc#1045487).
  • xen: Linux 3.12.74.
  • xen/PCI-MSI: fix sysfs teardown in DomU (bsc#986924).
  • xfs: fix a couple error sequence jumps in xfs_mountfs() (bsc#1035531).
  • xfs: fix coccinelle warnings (bsc#1035531).
  • xfs: handle error if xfs_btree_get_bufs fails (bsc#1059863).
  • xfs: use ->b_state to fix buffer I/O accounting release race
    (bsc#1041160) (bsc#1041160).
  • xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present