Security update for the Linux Kernel (important)

The openSUSE Leap 42.3 kernel was updated to 4.4.87 to receive various
security and bugfixes.

The following security bugs were fixed:

• CVE-2017-1000251: The native Bluetooth stack in the Linux Kernel (BlueZ)
  was vulnerable to a stack overflow vulnerability in the processing of
  L2CAP configuration responses resulting in Remote code execution in
  kernel space (bnc#1057389).
• 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
  (bnc#1056982).
• CVE-2017-11472: The acpi_ns_terminate() function in
  drivers/acpi/acpica/nsutils.c in the Linux kernel did not flush the
  operand cache and causes a kernel stack dump, which allowed local users
  to obtain sensitive information from kernel memory and bypass the KASLR
  protection mechanism via a crafted ACPI table (bnc#1049580).

The following non-security bugs were fixed:

• acpica: IORT: Update SMMU models for revision C (bsc#1036060).
• acpi/nfit: Fix memory corruption/Unregister mce decoder on failure
  (bsc#1057047).
• ahci: do not use MSI for devices with the silly Intel NVMe remapping
  scheme (bsc#1048912).
• ahci: thunderx2: stop engine fix update (bsc#1057031).
• alsa: hda/realtek - Add support headphone Mic for ALC221 of HP platform
  (bsc#1024405).
• arm64: mm: select CONFIG_ARCH_PROC_KCORE_TEXT (bsc#1046529).
• arm64: PCI: Fix struct acpi_pci_root_ops allocation failure path
  (bsc#1056849).
• arm64: Update config files. Enable ARCH_PROC_KCORE_TEXT
• blacklist.conf: gcc7 compiler warning (bsc#1056849)
• bnxt: add a missing rcu synchronization (bnc#1038583).
• bnxt: do not busy-poll when link is down (bnc#1038583).
• bnxt_en: Enable MRU enables bit when configuring VNIC MRU (bnc#1038583).
• bnxt_en: Fix and clarify link_info->advertising (bnc#1038583).
• bnxt_en: Fix a VXLAN vs GENEVE issue (bnc#1038583).
• bnxt_en: Fix NULL pointer dereference in a failure path during open
  (bnc#1038583).
• bnxt_en: Fix NULL pointer dereference in reopen failure path
  (bnc#1038583).
• bnxt_en: fix pci cleanup in bnxt_init_one() failure path (bnc#1038583).
• bnxt_en: Fix ring arithmetic in bnxt_setup_tc() (bnc#1038583).
• bnxt_en: Fix TX push operation on ARM64 (bnc#1038583).
• bnxt_en: Fix "uninitialized variable" bug in TPA code path (bnc#1038583).
• bnxt_en: Fix VF virtual link state (bnc#1038583).
• bnxt_en: initialize rc to zero to avoid returning garbage (bnc#1038583).
• bnxt_en: Pad TX packets below 52 bytes (bnc#1038583).
• bnxt_en: Refactor TPA code path (bnc#1038583).
• ceph: fix readpage from fscache (bsc#1057015).
• cifs: add build_path_from_dentry_optional_prefix() (fate#323482).
• cifs: add use_ipc flag to SMB2_ioctl() (fate#323482).
• cifs: Fix sparse warnings (fate#323482).
• cifs: implement get_dfs_refer for SMB2+ (fate#323482).
• cifs: let ses->ipc_tid hold smb2 TreeIds (fate#323482).
• cifs: move DFS response parsing out of SMB1 code (fate#323482).
• cifs: remove any preceding delimiter from prefix_path (fate#323482).
• cifs: set signing flag in SMB2+ TreeConnect if needed (fate#323482).
• cifs: use DFS pathnames in SMB2+ Create requests (fate#323482).
• cpufreq: intel_pstate: Disable energy efficiency optimization
  (bsc#1054654).
• cxgb4: Fix stack out-of-bounds read due to wrong size to
  t4_record_mbox() (bsc#1021424 bsc#1022743).
• device-dax: fix cdev leak (bsc#1057047).
• dmaengine: mv_xor_v2: do not use descriptors not acked by async_tx
  (bsc#1056849).
• dmaengine: mv_xor_v2: enable XOR engine after its configuration
  (bsc#1056849).
• dmaengine: mv_xor_v2: fix tx_submit() implementation (bsc#1056849).
• dmaengine: mv_xor_v2: handle mv_xor_v2_prep_sw_desc() error properly
  (bsc#1056849).
• dmaengine: mv_xor_v2: properly handle wrapping in the array of HW
  descriptors (bsc#1056849).
• dmaengine: mv_xor_v2: remove interrupt coalescing (bsc#1056849).
• dmaengine: mv_xor_v2: set DMA mask to 40 bits (bsc#1056849).
• drivers: base: cacheinfo: fix boot error message when acpi is enabled
  (bsc#1057849).
• edac, thunderx: Fix a warning during l2c debugfs node creation
  (bsc#1057038).
• edac, thunderx: Fix error handling path in thunderx_lmc_probe()
  (bsc#1057038).
• fs/proc: kcore: use kcore_list type to check for vmalloc/module address
  (bsc#1046529).
• gfs2: Do not clear SGID when inheriting ACLs (bsc#1012829).
• ib/hns: checking for IS_ERR() instead of NULL (bsc#1056849).
• ibmvnic: Clean up resources on probe failure (fate#323285, bsc#1058116).
• ib/rxe: Add dst_clone() in prepare_ipv6_hdr() (bsc#1049361).
• ib/rxe: Avoid ICRC errors by copying into the skb first (bsc#1049361).
• ib/rxe: Disable completion upcalls when a CQ is destroyed (bsc#1049361).
• ib/rxe: Fix destination cache for IPv6 (bsc#1049361).
• ib/rxe: Fix up rxe_qp_cleanup() (bsc#1049361).
• ib/rxe: Fix up the responder’s find_resources() function (bsc#1049361).
• ib/rxe: Handle NETDEV_CHANGE events (bsc#1049361).
• ib/rxe: Move refcounting earlier in rxe_send() (bsc#1049361).
• ib/rxe: Remove dangling prototype (bsc#1049361).
• ib/rxe: Remove unneeded initialization in prepare6() (bsc#1049361).
• ib/rxe: Set dma_mask and coherent_dma_mask (bsc#1049361).
• iommu/arm-smmu-v3, acpi: Add temporary Cavium SMMU-V3 IORT model number
  definitions (bsc#1036060).
• iommu/arm-smmu-v3: Increase CMDQ drain timeout value (bsc#1035479).
  Refresh patch to mainline version
• irqchip/gic-v3-its: Fix command buffer allocation (bsc#1057067).
• iwlwifi: mvm: do not send CTDP commands via debugfs if not supported
  (bsc#1031717).
• kernel/*: switch to memdup_user_nul() (bsc#1048893).
• lightnvm: remove unused rq parameter of nvme_nvm_rqtocmd() to kill
  warning (FATE#319466).
• md/raid5: fix a race condition in stripe batch (linux-stable).
• mmc: sdhci-xenon: add set_power callback (bsc#1057035).
• mmc: sdhci-xenon: Fix the work flow in xenon_remove() (bsc#1057035).
• mm/page_alloc.c: apply gfp_allowed_mask before the first allocation
  attempt (bnc#971975 VM – git fixes).
• mm/vmalloc.c: huge-vmap: fail gracefully on unexpected huge vmap
  mappings (bsc#1046529).
• new helper: memdup_user_nul() (bsc#1048893).
• nfs: flush data when locking a file to ensure cache coherence for mmap
  (bsc#981309).
• pci: rockchip: Handle regulator_get_current_limit() failure correctly
  (bsc#1056849).
• pci: rockchip: Use normal register bank for config accessors
  (bsc#1056849).
• pm / Domains: Fix unsafe iteration over modified list of domains
  (bsc#1056849).
• rtnetlink: fix rtnl_vfinfo_size (bsc#1056261).
• scsi: hisi_sas: add missing break in switch statement (bsc#1056849).
• sysctl: fix lax sysctl_check_table() sanity check (bsc#1048893).
• sysctl: fold sysctl_writes_strict checks into helper (bsc#1048893).
• sysctl: kdoc’ify sysctl_writes_strict (bsc#1048893).
• sysctl: simplify unsigned int support (bsc#1048893).
• ubifs: Correctly evict xattr inodes (bsc#1012829).
• ubifs: Do not leak kernel memory to the MTD (bsc#1012829).
• xfs: fix inobt inode allocation search optimization (bsc#1012829).