The openSUSE Leap 42.3 kernel was updated to 4.4.90 to receive various security and bugfixes.

The following security bugs were fixed:

- CVE-2017-1000252: The KVM subsystem in the Linux kernel allowed guest OS users to cause a denial of service (assertion failure, and hypervisor hang or crash) via an out-of bounds guest_irq value, related to arch/x86/kvm/vmx.c and virt/kvm/eventfd.c (bnc#1058038).
- CVE-2017-14489: The iscsi_if_rx function in drivers/scsi/scsi_transport_iscsi.c in the Linux kernel allowed local users to cause a denial of service (panic) by leveraging incorrect length validation (bnc#1059051).
- 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).

The following non-security bugs were fixed:

- arc: Re-enable MMU upon Machine Check exception (bnc#1012382).
- arm64: fault: Route pte translation faults via do_translation_fault (bnc#1012382).
- arm64: Make sure SPsel is always set (bnc#1012382).
- arm: pxa: add the number of DMA requestor lines (bnc#1012382).
- arm: pxa: fix the number of DMA requestor lines (bnc#1012382).
- bcache: correct cache_dirty_target in __update_writeback_rate() (bnc#1012382).
- bcache: Correct return value for sysfs attach errors (bnc#1012382).
- bcache: do not subtract sectors_to_gc for bypassed IO (bnc#1012382).
- bcache: fix bch_hprint crash and improve output (bnc#1012382).
- bcache: fix for gc and write-back race (bnc#1012382).
- bcache: Fix leak of bdev reference (bnc#1012382).
- bcache: initialize dirty stripes in flash_dev_run() (bnc#1012382).
- block: Relax a check in blk_start_queue() (bnc#1012382).
- bsg-lib: do not free job in bsg_prepare_job (bnc#1012382).
- btrfs: change how we decide to commit transactions during flushing (bsc#1060197).
- btrfs: fix NULL pointer dereference from free_reloc_roots() (bnc#1012382).
- btrfs: prevent to set invalid default subvolid (bnc#1012382).
- btrfs: propagate error to btrfs_cmp_data_prepare caller (bnc#1012382).
- btrfs: qgroup: move noisy underflow warning to debugging build (bsc#1055755).
- cifs: Fix SMB3.1.1 guest authentication to Samba (bnc#1012382).
- cifs: release auth_key.response for reconnect (bnc#1012382).
- crypto: AF_ALG - remove SGL terminator indicator when chaining (bnc#1012382).
- crypto: talitos - Do not provide setkey for non hmac hashing algs (bnc#1012382).
- crypto: talitos - fix sha224 (bnc#1012382).
- cxl: Fix driver use count (bnc#1012382).
- dmaengine: mmp-pdma: add number of requestors (bnc#1012382).
- drivers: net: phy: xgene: Fix mdio write (bsc#1057383).
- drm: Add driver-private objects to atomic state (bsc#1055493).
- drm/dp: Introduce MST topology state to track available link bandwidth (bsc#1055493).
- efi/fb: Avoid reconfiguration of BAR that covers the framebuffer (bsc#1051987).
- efi/fb: Correct PCI_STD_RESOURCE_END usage (bsc#1051987).
- ext4: fix incorrect quotaoff if the quota feature is enabled (bnc#1012382).
- ext4: fix quota inconsistency during orphan cleanup for read-only mounts (bnc#1012382).
- f2fs: check hot_data for roll-forward recovery (bnc#1012382).
- fix xen_swiotlb_dma_mmap prototype (bnc#1012382).
- ftrace: Fix memleak when unregistering dynamic ops when tracing disabled (bnc#1012382).
- ftrace: Fix selftest goto location on error (bnc#1012382).
- genirq: Fix for_each_action_of_desc() macro (bsc#1061064).
- getcwd: Close race with d_move called by lustre (bsc#1052593).
- gfs2: Fix debugfs glocks dump (bnc#1012382).
- gianfar: Fix Tx flow control deactivation (bnc#1012382).
- hid: usbhid: Add HID_QUIRK_NOGET for Aten CS-1758 KVM switch (bnc#1022967).
- input: i8042 - add Gigabyte P57 to the keyboard reset table (bnc#1012382).
- iommu/vt-d: Avoid calling virt_to_phys() on null pointer (bsc#1061067).
- ipv6: accept 64k - 1 packet length in ip6_find_1stfragopt() (bnc#1012382).
- ipv6: add rcu grace period before freeing fib6_node (bnc#1012382).
- ipv6: fix memory leak with multiple tables during netns destruction (bnc#1012382).
- ipv6: fix sparse warning on rt6i_node (bnc#1012382).
- ipv6: fix typo in fib6_net_exit() (bnc#1012382).
- iw_cxgb4: put ep reference in pass_accept_req() (fate#321658 bsc#1005778 fate#321660 bsc#1005780 fate#321661 bsc#1005781).
- KABI fix drivers/nvme/target/nvmet.h (bsc#1058550).
- kabi/severities: ignore nfs_pgio_data_destroy
- kABI: Workaround kABI breakage of AMD-AVIC fixes (bsc#1044503).
- keys: fix writing past end of user-supplied buffer in keyring_read() (bnc#1012382).
- keys: prevent creating a different user's keyrings (bnc#1012382).
- keys: prevent KEYCTL_READ on negative key (bnc#1012382).
- kvm: Add struct kvm_vcpu pointer parameter to get_enable_apicv() (bsc#1044503).
- kvm: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously (bsc#1061017).
- kvm: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce() (bnc#1012382).
- kvm: SVM: Add a missing 'break' statement (bsc#1061017).
- kvm: SVM: Add irqchip_split() checks before enabling AVIC (bsc#1044503).
- kvm: SVM: delete avic_vm_id_bitmap (2 megabyte static array) (bsc#1059500).
- kvm: SVM: Refactor AVIC vcpu initialization into avic_init_vcpu() (bsc#1044503).
- kvm: VMX: do not change SN bit in vmx_update_pi_irte() (bsc#1061017).
- kvm: VMX: remove WARN_ON_ONCE in kvm_vcpu_trigger_posted_interrupt (bsc#1061017).
- kvm: VMX: use cmpxchg64 (bnc#1012382).
- mac80211: flush hw_roc_start work before cancelling the ROC (bnc#1012382).
- md/bitmap: disable bitmap_resize for file-backed bitmaps (bsc#1061172).
- md/raid5: preserve STRIPE_ON_UNPLUG_LIST in break_stripe_batch_list (bnc#1012382).
- md/raid5: release/flush io in raid5_do_work() (bnc#1012382).
- media: uvcvideo: Prevent heap overflow when accessing mapped controls (bnc#1012382).
- media: v4l2-compat-ioctl32: Fix timespec conversion (bnc#1012382).
- mips: math-emu: .: Fix cases of both infinite inputs (bnc#1012382).
- mips: math-emu: .: Fix cases of input values with opposite signs (bnc#1012382).
- mips: math-emu: .: Fix cases of both inputs zero (bnc#1012382).
- mips: math-emu: .: Fix quiet NaN propagation (bnc#1012382).
- mips: math-emu: .: Fix cases of both inputs negative (bnc#1012382).
- mips: math-emu: MINA.: Fix some cases of infinity and zero inputs (bnc#1012382).
- mm: prevent double decrease of nr_reserved_highatomic (bnc#1012382).
- nfsd: Fix general protection fault in release_lock_stateid() (bnc#1012382).
- nvme-fabrics: generate spec-compliant UUID NQNs (bsc#1057498).
- nvmet: Move serial number from controller to subsystem (bsc#1058550).
- nvmet: preserve controller serial number between reboots (bsc#1058550).
- pci: Allow PCI express root ports to find themselves (bsc#1061046).
- pci: fix oops when try to find Root Port for a PCI device (bsc#1061046).
- pci: Fix race condition with driver_override (bnc#1012382).
- pci: Mark AMD Stoney GPU ATS as broken (bsc#1061046).
- pci: shpchp: Enable bridge bus mastering if MSI is enabled (bnc#1012382).
- perf/x86: Fix RDPMC vs. mm_struct tracking (bsc#1061831).
- perf/x86: kABI Workaround for 'perf/x86: Fix RDPMC vs. mm_struct tracking' (bsc#1061831).
- perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver (bsc#1036737).
- perf: xgene: Include module.h (bsc#1036737).
- perf: xgene: Move PMU leaf functions into function pointer structure (bsc#1036737).
- perf: xgene: Parse PMU subnode from the match table (bsc#1036737).
- powerpc: Fix DAR reporting when alignment handler faults (bnc#1012382).
- powerpc/perf: Cleanup of PM_BR_CMPL vs. PM_BRU_CMPL in Power9 event list (bsc#1056686, fate#321438, bsc#1047238, git-fixes 34922527a2bc).
- powerpc/perf: Factor out PPMU_ONLY_COUNT_RUN check code from power8 (fate#321438, bsc#1053043, git-fixes efe881afdd999).
- powerpc/pseries: Fix parent_dn reference leak in add_dt_node() (bnc#1012382).
- qlge: avoid memcpy buffer overflow (bnc#1012382).
- rdma/bnxt_re: Allocate multiple notification queues (bsc#1037579).
- rdma/bnxt_re: Implement the alloc/get_hw_stats callback (bsc#1037579).
- Revert "net: fix percpu memory leaks" (bnc#1012382).
- Revert "net: phy: Correctly process PHY_HALTED in phy_stop_machine()" (bnc#1012382).
- Revert "net: use lib/percpu_counter API for fragmentation mem accounting" (bnc#1012382).
- Revert "Update patches.fixes/xfs-refactor-log-record-unpack-and-data-processing.patch (bsc#1043598, bsc#1036215)."
- Revert "xfs: detect and handle invalid iclog size set by mkfs (bsc#1043598)."
- Revert "xfs: detect and trim torn writes during log recovery (bsc#1036215)."
- Revert "xfs: refactor and open code log record crc check (bsc#1036215)."
- Revert "xfs: refactor log record start detection into a new helper (bsc#1036215)."
- Revert "xfs: return start block of first bad log record during recovery (bsc#1036215)."
- Revert "xfs: support a crc verification only log record pass (bsc#1036215)."
- scsi: ILLEGAL REQUEST + ASC==27 => target failure (bsc#1059465).
- scsi: megaraid_sas: Check valid aen class range to avoid kernel panic (bnc#1012382).
- scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead (bnc#1012382).
- scsi: sg: factor out sg_fill_request_table() (bnc#1012382).
- scsi: sg: fixup infoleak when using SG_GET_REQUEST_TABLE (bnc#1012382).
- scsi: sg: off by one in sg_ioctl() (bnc#1012382).
- scsi: sg: remove 'save_scat_len' (bnc#1012382).
- scsi: sg: use standard lists for sg_requests (bnc#1012382).
- scsi: storvsc: fix memory leak on ring buffer busy (bnc#1012382).
- scsi_transport_fc: Also check for NOTPRESENT in fc_remote_port_add() (bsc#1037890).
- scsi: zfcp: add handling for FCP_RESID_OVER to the fcp ingress path (bnc#1012382).
- scsi: zfcp: fix capping of unsuccessful GPN_FT SAN response trace records (bnc#1012382).
- scsi: zfcp: fix missing trace records for early returns in TMF eh handlers (bnc#1012382).
- scsi: zfcp: fix passing fsf_req to SCSI trace on TMF to correlate with HBA (bnc#1012382).
- scsi: zfcp: fix payload with full FCP_RSP IU in SCSI trace records (bnc#1012382).
- scsi: zfcp: fix queuecommand for scsi_eh commands when DIX enabled (bnc#1012382).
- scsi: zfcp: trace HBA FSF response by default on dismiss or timedout late response (bnc#1012382).
- scsi: zfcp: trace high part of "new" 64 bit SCSI LUN (bnc#1012382).
- seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter() (bnc#1012382).
- skd: Avoid that module unloading triggers a use-after-free (bnc#1012382).
- skd: Submit requests to firmware before triggering the doorbell (bnc#1012382).
- smb3: Do not ignore O_SYNC/O_DSYNC and O_DIRECT flags (bnc#1012382).
- smb: Validate negotiate (to protect against downgrade) even if signing off (bnc#1012382).
- swiotlb-xen: implement xen_swiotlb_dma_mmap callback (bnc#1012382).
- timer/sysclt: Restrict timer migration sysctl values to 0 and 1 (bnc#1012382).
- tracing: Apply trace_clock changes to instance max buffer (bnc#1012382).
- tracing: Erase irqsoff trace with empty write (bnc#1012382).
- tracing: Fix trace_pipe behavior for instance traces (bnc#1012382).
- tty: fix __tty_insert_flip_char regression (bnc#1012382).
- tty: improve tty_insert_flip_char() fast path (bnc#1012382).
- tty: improve tty_insert_flip_char() slow path (bnc#1012382).
- Update patches.drivers/0029-perf-xgene-Remove-bogus-IS_ERR-check.patch (bsc#1036737).
- vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets (bnc#1012382).
- video: fbdev: aty: do not leak uninitialized padding in clk to userspace (bnc#1012382).
- Workaround for kABI compatibility with DP-MST patches (bsc#1055493).
- x86/cpu/amd: Hide unused legacy_fixup_core_id() function (bsc#1060229).
- x86/cpu/amd: Limit cpu_core_id fixup to families older than F17h (bsc#1060229).
- x86/fpu: Do not let userspace set bogus xcomp_bv (bnc#1012382).
- x86/fsgsbase/64: Report FSBASE and GSBASE correctly in core dumps (bnc#1012382).
- x86/ldt: Fix off by one in get_segment_base() (bsc#1061872).
- x86/mm: Fix boot crash caused by incorrect loop count calculation in sync_global_pgds() (bsc#1058512).
- x86/mm: Fix fault error path using unsafe vma pointer (fate#321300).