Security update for the Linux Kernel (important)

An update that solves two vulnerabilities and has 53 fixes
is now available.

Description:

The openSUSE Leap 42.3 kernel was updated to 4.4.176 to receive various
security and bugfixes.

The following security bugs were fixed:

• CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap
  minimum address, which made it easier for attackers to exploit kernel
  NULL pointer dereferences on non-SMAP platforms. This is related to a
  capability check for the wrong task (bnc#1128166).
• CVE-2019-2024: A use-after-free when disconnecting a source was fixed
  which could lead to crashes. bnc#1129179).

The following non-security bugs were fixed:

• ax25: fix possible use-after-free (bnc#1012382).
• block_dev: fix crash on chained bios with O_DIRECT (bsc#1090435).
• block: do not use bio->bi_vcnt to figure out segment number
  (bsc#1128893).
• bnxt_re: Fix couple of memory leaks that could lead to IOMMU call traces
  (bsc#1020413).
• bpf: fix replace_map_fd_with_map_ptr’s ldimm64 second imm field
  (bsc#1012382).
• btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
  (bsc#1128452).
• ceph: avoid repeatedly adding inode to mdsc->snap_flush_list
  (bsc#1126773).
• ch: add missing mutex_lock()/mutex_unlock() in ch_release()
  (bsc#1124235).
• ch: fixup refcounting imbalance for SCSI devices (bsc#1124235).
• copy_mount_string: Limit string length to PATH_MAX (bsc#1082943).
• device property: Fix the length used in PROPERTY_ENTRY_STRING()
  (bsc#1129770).
• Drivers: hv: vmbus: Check for ring when getting debug info (bsc#1126389).
• drm: Fix error handling in drm_legacy_addctx (bsc#1106929)
• drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON
  (bsc#1106929)
• drm/nouveau/pmu: do not print reply values if exec is false (bsc#1106929)
• drm/radeon/evergreen_cs: fix missing break in switch statement
  (bsc#1106929)
• drm/vmwgfx: Do not double-free the mode stored in par->set_mode
  (bsc#1103429)
• enic: add wq clean up budget (bsc#1075697, bsc#1120691. bsc#1102959).
• enic: do not overwrite error code (bnc#1012382).
• fbdev: chipsfb: remove set but not used variable ‘size’ (bsc#1106929)
• ibmvnic: Report actual backing device speed and duplex values
  (bsc#1129923).
• ibmvscsi: Fix empty event pool access during host removal (bsc#1119019).
• Input: mms114 - fix license module information (bsc#1087092).
• iommu/dmar: Fix buffer overflow during PCI bus notification
  (bsc#1129237).
• iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables (bsc#1129238).
• iommu/vt-d: Check identity map for hot-added devices (bsc#1129239).
• iommu/vt-d: Fix NULL pointer reference in intel_svm_bind_mm()
  (bsc#1129240).
• ixgbe: fix crash in build_skb Rx code path (git-fixes).
• kABI: protect struct inet_peer (kabi).
• kallsyms: Handle too long symbols in kallsyms.c (bsc#1126805).
• KMPs: obsolete older KMPs of the same flavour (bsc#1127155, bsc#1109137).
• KVM: arm/arm64: vgic-its: Check CBASER/BASER validity before enabling
  the ITS (bsc#1109248).
• KVM: arm/arm64: vgic-its: Check GITS_BASER Valid bit before saving
  tables (bsc#1109248).
• KVM: arm/arm64: vgic-its: Fix return value for device table restore
  (bsc#1109248).
• KVM: arm/arm64: vgic-its: Fix vgic_its_restore_collection_table returned
  value (bsc#1109248).
• kvm: nVMX: Do not halt vcpu when L1 is injecting events to L2
  (bsc#1129413).
• kvm: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails
  (bsc#1129414).
• kvm: nVMX: NMI-window and interrupt-window exiting should wake L2 from
  HLT (bsc#1129415).
• kvm: nVMX: Set VM instruction error for VMPTRLD of unbacked page
  (bsc#1129416).
• kvm: VMX: Do not allow reexecute_instruction() when skipping MMIO instr
  (bsc#1129417).
• kvm: vmx: Set IA32_TSC_AUX for legacy mode guests (bsc#1129418).
• kvm: x86: Add AMD’s EX_CFG to the list of ignored MSRs (bsc#1127082).
• kvm: x86: IA32_ARCH_CAPABILITIES is always supported (bsc#1129419).
• libceph: handle an empty authorize reply (bsc#1126772).
• mdio_bus: Fix use-after-free on device_register fails (git-fixes).
• mfd: as3722: Handle interrupts on suspend (bnc#1012382).
• mfd: as3722: Mark PM functions as __maybe_unused (bnc#1012382).
• mISDN: fix a race in dev_expire_timer() (bnc#1012382).
• mlxsw: pci: Correctly determine if descriptor queue is full (git-fixes).
• mlxsw: reg: Use correct offset in field definiton (git-fixes).
• mm, devm_memremap_pages: mark devm_memremap_pages() EXPORT_SYMBOL_GPL
  (bnc#1012382).
• mm,memory_hotplug: fix scan_movable_pages() for gigantic hugepages
  (bsc#1127731).
• net: Add header for usage of fls64() (bnc#1012382).
• net: Do not allocate page fragments that are not skb aligned
  (bnc#1012382).
• net: dsa: bcm_sf2: Do not assume DSA master supports WoL (git-fixes).
• net: dsa: mv88e6xxx: fix port VLAN maps (git-fixes).
• net: Fix for_each_netdev_feature on Big endian (bnc#1012382).
• net: fix IPv6 prefix route residue (bnc#1012382).
• net/hamradio/6pack: Convert timers to use timer_setup() (git-fixes).
• net/hamradio/6pack: use mod_timer() to rearm timers (git-fixes).
• net: ipv4: use a dedicated counter for icmp_v4 redirect packets
  (bnc#1012382).
• net: lan78xx: Fix race in tx pending skb size calculation (git-fixes).
• net/mlx4_core: drop useless LIST_HEAD (git-fixes).
• net/mlx4_core: Fix qp mtt size calculation (git-fixes).
• net/mlx4_core: Fix reset flow when in command polling mode (git-fixes).
• net/mlx4: Fix endianness issue in qp context params (git-fixes).
• net/mlx5: Continue driver initialization despite debugfs failure
  (git-fixes).
• net/mlx5e: Fix TCP checksum in LRO buffers (git-fixes).
• net/mlx5: Fix driver load bad flow when having fw initializing timeout
  (git-fixes).
• net/mlx5: fix uaccess beyond “count” in debugfs read/write handlers
  (git-fixes).
• net/mlx5: Fix use-after-free in self-healing flow (git-fixes).
• net/mlx5: Return success for PAGE_FAULT_RESUME in internal error state
  (git-fixes).
• net: mv643xx_eth: fix packet corruption with TSO and tiny unaligned
  packets (git-fixes).
• net: phy: Avoid polling PHY with PHY_IGNORE_INTERRUPTS (git-fixes).
• net: phy: bcm7xxx: Fix shadow mode 2 disabling (git-fixes).
• net: qca_spi: Fix race condition in spi transfers (git-fixes).
• net: stmmac: Fix a race in EEE enable callback (bnc#1012382).
• net: stmmac: Fix a race in EEE enable callback (git-fixes).
• net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue
  (git-fixes).
• net/x25: do not hold the cpu too long in x25_new_lci() (bnc#1012382).
• pci/pme: Fix hotplug/sysfs remove deadlock in pcie_pme_remove()
  (bsc#1129241).
• perf/x86: Add sysfs entry to freeze counters on SMI (bsc#1121805).
• perf/x86/intel: Delay memory deallocation until x86_pmu_dead_cpu()
  (bsc#1121805).
• perf/x86/intel: Do not enable freeze-on-smi for PerfMon V1 (bsc#1121805).
• perf/x86/intel: Fix memory corruption (bsc#1121805).
• perf/x86/intel: Generalize dynamic constraint creation (bsc#1121805).
• perf/x86/intel: Implement support for TSX Force Abort (bsc#1121805).
• perf/x86/intel: Make cpuc allocations consistent (bsc#1121805).
• phy: micrel: Ensure interrupts are reenabled on resume (git-fixes).
• powerpc/pseries: Add CPU dlpar remove functionality (bsc#1128756).
• powerpc/pseries: Consolidate CPU hotplug code to hotplug-cpu.c
  (bsc#1128756).
• powerpc/pseries: Factor out common cpu hotplug code (bsc#1128756).
• powerpc/pseries: Perform full re-add of CPU for topology update
  post-migration (bsc#1128756).
• pppoe: fix reception of frames with no mac header (git-fixes).
• pptp: dst_release sk_dst_cache in pptp_sock_destruct (git-fixes).
• pseries/energy: Use OF accessor function to read ibm,drc-indexes
  (bsc#1129080).
• RDMA/bnxt_re: Synchronize destroy_qp with poll_cq (bsc#1125446).
• Refresh
  patches.suse/scsi-do-not-print-reservation-conflict-for-TEST-UNIT.patch
  (bsc#1119843)
• Revert “mm, devm_memremap_pages: mark devm_memremap_pages()
  EXPORT_SYMBOL_GPL” (bnc#1012382).
• Revert “x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls”
  (bsc#1128565).
• s390/qeth: cancel close_dev work before removing a card (LTC#175898,
  bsc#1127561).
• scsi: aacraid: Fix missing break in switch statement (bsc#1128696).
• scsi: ibmvscsi: Fix empty event pool access during host removal
  (bsc#1119019).
• scsi: lpfc: do not set queue->page_count to 0 if pc_sli4_params.wqpcnt
  is invalid (bsc#1127725).
• scsi: qla2xxx: Fix early srb free on abort (bsc#1121713).
• scsi: qla2xxx: Fix for double free of SRB structure (bsc#1121713).
• scsi: qla2xxx: Increase abort timeout value (bsc#1121713).
• scsi: qla2xxx: Move {get|rel}_sp to base_qpair struct (bsc#1121713).
• scsi: qla2xxx: Return switch command on a timeout (bsc#1121713).
• scsi: qla2xxx: Turn off IOCB timeout timer on IOCB completion
  (bsc#1121713).
• scsi: qla2xxx: Use correct qpair for ABTS/CMD (bsc#1121713).
• scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
  (bsc#1125315).
• sky2: Increase D3 delay again (bnc#1012382).
• tcp: clear icsk_backoff in tcp_write_queue_purge() (bnc#1012382).
• tcp: tcp_v4_err() should be more careful (bnc#1012382).
• team: avoid complex list operations in team_nl_cmd_options_set()
  (bnc#1012382).
• team: Free BPF filter when unregistering netdev (git-fixes).
• tracing: Do not free iter->trace in fail path of tracing_open_pipe()
  (bsc#1129581).
• vsock: cope with memory allocation failure at socket creation time
  (bnc#1012382).
• vxlan: test dev->flags & IFF_UP before calling netif_rx() (bnc#1012382).
• wireless: airo: potential buffer overflow in sprintf() (bsc#1120902).
• x86: Add TSX Force Abort CPUID/MSR (bsc#1121805).
• x86: livepatch: Treat R_X86_64_PLT32 as R_X86_64_PC32 (bnc#1012382).
• xen, cpu_hotplug: Prevent an out of bounds access (bsc#1065600).
• xen: remove pre-xen3 fallback handlers (bsc#1065600).
• xfs: remove filestream item xfs_inode reference (bsc#1127961).

Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this openSUSE 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:

• openSUSE Leap 42.3:

  zypper in -t patch openSUSE-2019-1085=1