CVE-2018-18386

drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18445: A faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bnc#1112372).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-18224: fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allowed local users to cause a denial of service (BUG) by modifying a certain e_cpos field (bnc#1084831).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).

The following non-security bugs were fixed:

• acpi / processor: Fix the return value of acpi_processor_ids_walk() (bsc#1051510).
• acpica: Reference Counts: increase max to 0x4000 for large servers (bsc#1108241).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bsc#1051510).
• arm: 8799/1: mm: fix pci_ioremap_io() offset check (bsc#1051510).
• arm: bcm2835: Add GET_THROTTLED firmware property (bsc#1108468).
• arm: exynos: Clear global variable on init error path (bsc#1051510).
• arm: hisi: check of_iomap and fix missing of_node_put (bsc#1051510).
• arm: hwmod: RTC: Do not assume lock/unlock will be called with irq enabled (bsc#1051510).
• arm: mvebu: declare asm symbols as character arrays in pmsu.c (bsc#1051510).
• ASoC: Intel: Skylake: Reset the controller in probe (bsc#1051510).
• ASoC: rsnd: adg: care clock-frequency size (bsc#1051510).
• ASoC: rsnd: do not fallback to PIO mode when -EPROBE_DEFER (bsc#1051510).
• ASoC: rt5514: Fix the issue of the delay volume applied again (bsc#1051510).
• ASoC: sigmadsp: safeload should not have lower byte limit (bsc#1051510).
• ASoC: wm8804: Add ACPI support (bsc#1051510).
• Btrfs: fix file data corruption after cloning a range and fsync (bsc#1111901).
• Btrfs: fix mount failure after fsync due to hard link recreation (bsc#1103543).
• Btrfs: send, fix invalid access to commit roots due to concurrent snapshotting (bsc#1111904).
• cifs: check for STATUS_USER_SESSION_DELETED (bsc#1112902).
• Delete patches.drivers/IB-qedr-Remove-GID-add-del-dummy-routines.patch. (bsc#1110921)
• Disable DRM patches that broke vbox video driver KMP (bsc#1111076)
• EDAC, ghes: Add DDR4 and NVDIMM memory types (bsc#1099125).
• EDAC, skx: Fix skx_edac build error when ACPI_NFIT=m (bsc#1099125).
• EDAC, skx_edac: Detect non-volatile DIMMs (bsc#1099125).
• EDAC: Add new memory type for non-volatile DIMMs (bsc#1099125).
• HID: add support for Apple Magic Keyboards (bsc#1051510).
• HID: hid-saitek: Add device ID for RAT 7 Contagion (bsc#1051510).
• HID: hid-sensor-hub: Force logical minimum to 1 for power and report state (bsc#1051510).
• HID: quirks: fix support for Apple Magic Keyboards (bsc#1051510).
• HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report (bsc#1051510).
• input: atakbd - fix Atari CapsLock behaviour (bsc#1051510).
• input: atakbd - fix Atari keymap (bsc#1051510).
• kvm/vmx: Optimize vmx_vcpu_run() and svm_vcpu_run() by marking the RDMSR path as unlikely() (bsc#1110006).
• kvm: svm: Add MSR-based feature support for serializing LFENCE (bsc#1106240).
• kvm: vmx: Tell the nested hypervisor to skip L1D flush on vmentry (bsc#1106240).
• kvm: vmx: raise internal error for exception during invalid protected mode state (bsc#1110006).
• kvm: vmx: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR (bsc#1106240).
• kvm: x86: Fix reserved bits check for MOV to CR3…

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18445: A faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bnc#1112372).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-18224: fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allowed local users to cause a denial of service (BUG) by modifying a certain e_cpos field (bnc#1084831).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).

The following non-security bugs were fixed:

• acpi / processor: Fix the return value of acpi_processor_ids_walk() (bsc#1051510).
• acpica: Reference Counts: increase max to 0x4000 for large servers (bsc#1108241).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bsc#1051510).
• arm: 8799/1: mm: fix pci_ioremap_io() offset check (bsc#1051510).
• arm: bcm2835: Add GET_THROTTLED firmware property (bsc#1108468).
• arm: exynos: Clear global variable on init error path (bsc#1051510).
• arm: hisi: check of_iomap and fix missing of_node_put (bsc#1051510).
• arm: hwmod: RTC: Do not assume lock/unlock will be called with irq enabled (bsc#1051510).
• arm: mvebu: declare asm symbols as character arrays in pmsu.c (bsc#1051510).
• ASoC: Intel: Skylake: Reset the controller in probe (bsc#1051510).
• ASoC: rsnd: adg: care clock-frequency size (bsc#1051510).
• ASoC: rsnd: do not fallback to PIO mode when -EPROBE_DEFER (bsc#1051510).
• ASoC: rt5514: Fix the issue of the delay volume applied again (bsc#1051510).
• ASoC: sigmadsp: safeload should not have lower byte limit (bsc#1051510).
• ASoC: wm8804: Add ACPI support (bsc#1051510).
• Btrfs: fix file data corruption after cloning a range and fsync (bsc#1111901).
• Btrfs: fix mount failure after fsync due to hard link recreation (bsc#1103543).
• Btrfs: send, fix invalid access to commit roots due to concurrent snapshotting (bsc#1111904).
• cifs: check for STATUS_USER_SESSION_DELETED (bsc#1112902).
• Delete patches.drivers/IB-qedr-Remove-GID-add-del-dummy-routines.patch. (bsc#1110921)
• Disable DRM patches that broke vbox video driver KMP (bsc#1111076)
• EDAC, ghes: Add DDR4 and NVDIMM memory types (bsc#1099125).
• EDAC, skx: Fix skx_edac build error when ACPI_NFIT=m (bsc#1099125).
• EDAC, skx_edac: Detect non-volatile DIMMs (bsc#1099125).
• EDAC: Add new memory type for non-volatile DIMMs (bsc#1099125).
• HID: add support for Apple Magic Keyboards (bsc#1051510).
• HID: hid-saitek: Add device ID for RAT 7 Contagion (bsc#1051510).
• HID: hid-sensor-hub: Force logical minimum to 1 for power and report state (bsc#1051510).
• HID: quirks: fix support for Apple Magic Keyboards (bsc#1051510).
• HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report (bsc#1051510).
• input: atakbd - fix Atari CapsLock behaviour (bsc#1051510).
• input: atakbd - fix Atari keymap (bsc#1051510).
• kvm/vmx: Optimize vmx_vcpu_run() and svm_vcpu_run() by marking the RDMSR path as unlikely() (bsc#1110006).
• kvm: svm: Add MSR-based feature support for serializing LFENCE (bsc#1106240).
• kvm: vmx: Tell the nested hypervisor to skip L1D flush on vmentry (bsc#1106240).
• kvm: vmx: raise internal error for exception during invalid protected mode state (bsc#1110006).
• kvm: vmx: support MSR_IA32_ARCH_CAPABILITIES as a feature MSR (bsc#1106240).
• kvm: x86: Fix reserved bits check for MOV to CR3…

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-7480: The blkcg_init_queue function in block/blk-cgroup.c allowed local users to cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation failure (bnc#1082863).
• 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-2018-14613: There is an invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c (bnc#1102896).
• CVE-2018-14617: There is a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory (bnc#1102870).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).
• CVE-2018-16276: Local attackers could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges (bnc#1106095).
• CVE-2018-16597: Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem (bnc#1106512).
• CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bnc#1108399).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-9516: A lack of certain checks in the hid_debug_events_read() function in the drivers/hid/hid-debug.c file might have resulted in receiving userspace buffer overflow and an out-of-bounds write or to the infinite loop. (bnc#1108498).

The following non-security bugs were fixed:

• 6lowpan: iphc: reset mac_header after decompress to fix panic (bnc#1012382).
• alsa: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping (bnc#1012382).
• alsa: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO (bnc#1012382).
• alsa: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge (bnc#1012382).
• alsa: hda - Fix cancel_work_sync() stall from jackpoll work (bnc#1012382).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bnc#1012382).
• alsa: msnd: Fix the default sample sizes (bnc#1012382).
• alsa: pcm: Fix snd_interval_refine first/last with open min/max (bnc#1012382).
• alsa: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro (bnc#1012382).
• apparmor: remove no-op permission check in policy_unpack (git-fixes).
• arc: build: Get rid of…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).
• CVE-2018-18710: An issue was discovered in the Linux kernel An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-9516: A lack of certain checks in the hid_debug_events_read() function in the drivers/hid/hid-debug.c file might have resulted in receiving userspace buffer overflow and an out-of-bounds write or to the infinite loop. (bnc#1108498).

The following non-security bugs were fixed:

• 6lowpan: iphc: reset mac_header after decompress to fix panic (bnc#1012382).
• alsa: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping (bnc#1012382).
• alsa: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO (bnc#1012382).
• alsa: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge (bnc#1012382).
• alsa: hda - Fix cancel_work_sync() stall from jackpoll work (bnc#1012382).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bnc#1012382).
• alsa: msnd: Fix the default sample sizes (bnc#1012382).
• alsa: pcm: Fix snd_interval_refine first/last with open min/max (bnc#1012382).
• alsa: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro (bnc#1012382).
• apparmor: remove no-op permission check in policy_unpack (git-fixes).
• arc: build: Get rid of toolchain check (bnc#1012382).
• arc: clone syscall to setp r25 as thread pointer (bnc#1012382).
• arch/hexagon: fix kernel/dma.c build warning (bnc#1012382).
• arc: [plat-axs*]: Enable SWAP (bnc#1012382).
• arm64: bpf: jit JMP_JSET_{X,K} (bsc#1110613).
• arm64: Correct type for PUD macros (bsc#1110600).
• arm64: cpufeature: Track 32bit EL0 support (bnc#1012382).
• arm64: dts: qcom: db410c: Fix Bluetooth LED trigger (bnc#1012382).
• arm64: fix erroneous __raw_read_system_reg() cases (bsc#1110606).
• arm64: Fix potential race with hardware DBM in ptep_set_access_flags() (bsc#1110605).
• arm64: fpsimd: Avoid FPSIMD context…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).
• CVE-2018-18710: An issue was discovered in the Linux kernel An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-9516: A lack of certain checks in the hid_debug_events_read() function in the drivers/hid/hid-debug.c file might have resulted in receiving userspace buffer overflow and an out-of-bounds write or to the infinite loop. (bnc#1108498).

The following non-security bugs were fixed:

• 6lowpan: iphc: reset mac_header after decompress to fix panic (bnc#1012382).
• alsa: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping (bnc#1012382).
• alsa: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO (bnc#1012382).
• alsa: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge (bnc#1012382).
• alsa: hda - Fix cancel_work_sync() stall from jackpoll work (bnc#1012382).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bnc#1012382).
• alsa: msnd: Fix the default sample sizes (bnc#1012382).
• alsa: pcm: Fix snd_interval_refine first/last with open min/max (bnc#1012382).
• alsa: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro (bnc#1012382).
• apparmor: remove no-op permission check in policy_unpack (git-fixes).
• arc: build: Get rid of toolchain check (bnc#1012382).
• arc: clone syscall to setp r25 as thread pointer (bnc#1012382).
• arch/hexagon: fix kernel/dma.c build warning (bnc#1012382).
• arc: [plat-axs*]: Enable SWAP (bnc#1012382).
• arm64: bpf: jit JMP_JSET_{X,K} (bsc#1110613).
• arm64: Correct type for PUD macros (bsc#1110600).
• arm64: cpufeature: Track 32bit EL0 support (bnc#1012382).
• arm64: dts: qcom: db410c: Fix Bluetooth LED trigger (bnc#1012382).
• arm64: fix erroneous __raw_read_system_reg() cases (bsc#1110606).
• arm64: Fix potential race with hardware DBM in ptep_set_access_flags() (bsc#1110605).
• arm64: fpsimd: Avoid FPSIMD context…

The SUSE Linux Enterprise 11 SP4 kernel was updated to 3.0.101-108.81 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18281: An issue was discovered in the Linux kernel, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused (bnc#1113769).
• CVE-2018-18710: An issue was discovered in the Linux kernel, an information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18386: drivers/tty/n_tty.c in the Linux kernel allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c in the Linux kernel 4.x allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-1000407: An denial of service issue was discovered in the Linux kernel, by flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic (bnc#1071021).
• CVE-2018-9516: An issue was discovered in the Linux kernel, the copy_to_user() inside the HID code does not correctly check the length before executing (bsc#1108498).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely (bnc#1107829).

The following non-security bugs were fixed:

• Btrfs: fix deadlock when finalizing block group creation (bsc#1107849).
• Btrfs: fix quick exhaustion of the system array in the superblock (bsc#1107849).
• FS-Cache: Synchronise object death state change vs operation submission (bsc#1107371).
• KABI: move the new handler to end of machdep_calls and hide it from genksyms (bsc#1094244).
• KVM: Disable irq while unregistering user notifier (bsc#1106240).
• KVM: SVM: obey guest PAT (bsc#1106240).
• KVM: VMX: remove I/O port 0x80 bypass on Intel hosts (bsc#1106240).
• KVM: emulate: fix CMPXCHG8B on 32-bit hosts (bsc#1106240).
• KVM: x86: emulator: Return to user-mode on L1 CPL=0 emulation failure (bsc#1106240).
• KVM: x86: fix use of uninitialized memory as segment descriptor in emulator (bsc#1106240).
• KVM: x86: zero base3 of unusable segments (bsc#1106240).
• NFS - do not hang if xdr decoded username is bad (bsc#1105799).
• NFSv4.1 - Do not leak IO size from one mount to another (bsc#1103145).
• PCI/AER: Report non-fatal errors only to the affected endpoint (bsc#1109806).
• PCI: Supply CPU physical address (not bus address) to iomem_is_exclusive()…

This update for the Linux Kernel 3.12.74-60_64_104 fixes one issue.

The following security issue was fixed:

• CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bsc#1112039).

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).
• CVE-2018-18710: An issue was discovered in the Linux kernel An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-9516: A lack of certain checks in the hid_debug_events_read() function in the drivers/hid/hid-debug.c file might have resulted in receiving userspace buffer overflow and an out-of-bounds write or to the infinite loop. (bnc#1108498).

The following non-security bugs were fixed:

• 6lowpan: iphc: reset mac_header after decompress to fix panic (bnc#1012382).
• alsa: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping (bnc#1012382).
• alsa: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO (bnc#1012382).
• alsa: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge (bnc#1012382).
• alsa: hda - Fix cancel_work_sync() stall from jackpoll work (bnc#1012382).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bnc#1012382).
• alsa: msnd: Fix the default sample sizes (bnc#1012382).
• alsa: pcm: Fix snd_interval_refine first/last with open min/max (bnc#1012382).
• alsa: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro (bnc#1012382).
• apparmor: remove no-op permission check in policy_unpack (git-fixes).
• arc: build: Get rid of toolchain check (bnc#1012382).
• arc: clone syscall to setp r25 as thread pointer (bnc#1012382).
• arch/hexagon: fix kernel/dma.c build warning (bnc#1012382).
• arc: [plat-axs*]: Enable SWAP (bnc#1012382).
• arm64: bpf: jit JMP_JSET_{X,K} (bsc#1110613).
• arm64: Correct type for PUD macros (bsc#1110600).
• arm64: cpufeature: Track 32bit EL0 support (bnc#1012382).
• arm64: dts: qcom: db410c: Fix Bluetooth LED trigger (bnc#1012382).
• arm64: fix erroneous __raw_read_system_reg() cases (bsc#1110606).
• arm64: Fix potential race with hardware DBM in ptep_set_access_flags() (bsc#1110605).
• arm64: fpsimd: Avoid FPSIMD context…

This update for the Linux Kernel 4.4.90-92_50 fixes several issues.

The following security issues were fixed:

• CVE-2018-5391: Fixed a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may have caused a denial of service condition by sending specially crafted IP fragments. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098).
• CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bsc#1112039).

This update for the Linux Kernel 4.4.92-6_30 fixes several issues.

The following security issues were fixed:

• CVE-2018-5391: Fixed a possible denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098).
• CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bsc#1112039).

The SUSE Linux Enterprise 11 SP4 RT kernel was updated to 3.0.101-rt130-69.39 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18281: An issue was discovered in the Linux kernel, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused (bnc#1113769).
• CVE-2018-18710: An issue was discovered in the Linux kernel, an information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18386: drivers/tty/n_tty.c in the Linux kernel allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c in the Linux kernel 4.x allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c in the Linux kernel allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-1000407: An denial of service issue was discovered in the Linux kernel, by flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic (bnc#1071021).
• CVE-2018-9516: An issue was discovered in the Linux kernel, the copy_to_user() inside the HID code does not correctly check the length before executing (bsc#1108498).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely (bnc#1107829).

The following non-security bugs were fixed:

• Btrfs: fix deadlock when finalizing block group creation (bsc#1107849).
• Btrfs: fix quick exhaustion of the system array in the superblock (bsc#1107849).
• FS-Cache: Synchronise object death state change vs operation submission (bsc#1107371).
• KABI: move the new handler to end of machdep_calls and hide it from genksyms (bsc#1094244).
• KVM: Disable irq while unregistering user notifier (bsc#1106240).
• KVM: SVM: obey guest PAT (bsc#1106240).
• KVM: VMX: remove I/O port 0x80 bypass on Intel hosts (bsc#1106240).
• KVM: emulate: fix CMPXCHG8B on 32-bit hosts (bsc#1106240).
• KVM: x86: emulator: Return to user-mode on L1 CPL=0 emulation failure (bsc#1106240).
• KVM: x86: fix use of uninitialized memory as segment descriptor in emulator (bsc#1106240).
• KVM: x86: zero base3 of unusable segments (bsc#1106240).
• NFS - do not hang if xdr decoded username is bad (bsc#1105799).
• NFSv4.1 - Do not leak IO size from one mount to another (bsc#1103145).
• PCI/AER: Report non-fatal errors only to the affected endpoint (bsc#1109806).
• PCI: Supply CPU physical address (not bus address) to…

This update for the Linux Kernel 4.12.14-23 fixes several issues.

The following security issues were fixed:

• CVE-2018-5391: Fixed a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may have caused a denial of service condition by sending specially crafted IP fragments. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098).
• CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bsc#1112039).

The SUSE Linux Enterprise 12 SP4 kernel for Azure was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18445: Faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bnc#1112372).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-18224: fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allowed local users to cause a denial of service (BUG) by modifying a certain e_cpos field (bnc#1084831).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).

The following non-security bugs were fixed:

• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#112128).
• acpi / processor: Fix the return value of acpi_processor_ids_walk() (bsc#1051510).
• aio: fix io_destroy(2) vs. lookup_ioctx() race (git-fixes).
• alsa: hda: Add 2 more models to the power_save blacklist (bsc#1051510).
• alsa: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905) (bsc#1051510).
• alsa: hda - Add quirk for ASUS G751 laptop (bsc#1051510).
• alsa: hda - Fix headphone pin config for ASUS G751 (bsc#1051510).
• alsa: hda: fix unused variable warning (bsc#1051510).
• alsa: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 (bsc#1051510).
• alsa: hda/realtek - Fix the problem of the front MIC on the Lenovo M715 (bsc#1051510).
• alsa: usb-audio: update quirk for B&W PX to remove microphone (bsc#1051510).
• apparmor: Check buffer bounds when mapping permissions mask (git-fixes).
• ARM: bcm2835: Add GET_THROTTLED firmware property (bsc#1108468).
• ASoC: intel: skylake: Add missing break in skl_tplg_get_token() (bsc#1051510).
• ASoC: Intel: Skylake: Reset the controller in probe (bsc#1051510).
• ASoC: rsnd: adg: care clock-frequency size (bsc#1051510).
• ASoC: rsnd: do not fallback to PIO mode when -EPROBE_DEFER (bsc#1051510).
• ASoC: rt5514: Fix the issue of the delay volume applied again (bsc#1051510).
• ASoC: sigmadsp: safeload should not have lower byte limit (bsc#1051510).
• ASoC: wm8804: Add ACPI support (bsc#1051510).
• ath10k: fix kernel panic issue during pci probe (bsc#1051510).
• ath10k: fix scan crash due to incorrect length calculation (bsc#1051510).
• ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait (bsc#1051510).
• autofs: fix autofs_sbi() does not check super block type (git-fixes).
• autofs: fix slab out of bounds read in getname_kernel() (git-fixes).
• autofs: mount point create should honour passed in mode (git-fixes).
• badblocks: fix wrong return value in badblocks_set if badblocks are disabled (git-fixes).
• batman-adv: Avoid probe ELP information leak (bsc#1051510).
• batman-adv: fix backbone_gw refcount on queue_work() failure (bsc#1051510).
• batman-adv: fix hardif_neigh refcount on queue_work() failure (bsc#1051510).
• bdi: Fix another oops in wb_workfn() (bsc#1112746).
• bdi: Preserve kabi when adding cgwb_release_mutex (bsc#1112746).
• blkdev_report_zones_ioctl(): Use vmalloc() to allocate large buffers (bsc#1111819).
• blk-mq: I/O and timer unplugs are inverted in blktrace (bsc#1112713).
• block, bfq: fix wrong init of saved start time for weight raising…

The SUSE Linux Enterprise 15 azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-9363: Fixed an integer overflow that could have been used for an out of bounds write with no additional execution privileges needed. User interaction is not needed for exploitation (bsc#1105292).
• CVE-2018-6555: The irda_setsockopt function in net/irda/af_irda.c was fixed in drivers/staging/irda/net/af_irda.c that allowed local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket (bsc#1106511).
• CVE-2018-6554: Fixed memory leak in the irda_bind function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c that allowed local users to cause a denial of service (memory consumption) by repeatedly binding an AF_IRDA socket (bsc#1106509).
• CVE-2018-18710: An information leak was fixed in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c that could have been used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bsc#1113751).
• CVE-2018-18445: Fixed faulty computation of numeric bounds in the BPF verifier that now permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bsc#1112372).
• CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c was fixed that was vulnerable to sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations. (bsc#1108399).
• CVE-2018-16658: An information leak in cdrom_ioctl_drive_status in drivers/cdrom/cdrom.c was fixed that could have leed to be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 (bsc#1107689).
• CVE-2018-15572: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c was not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks. (bsc#1102517)
• CVE-2018-14633: A security flaw was fixed in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely (bsc#1107829).
• CVE-2018-14617: A NULL pointer dereference and panic in hfsplus_lookup() was fixed when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory. (bsc#1102870)
• CVE-2018-14613: An invalid pointer dereference in io_ctl_map_page() was fixed when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c. (bsc#1102896)
• CVE-2018-13095: A denial of service (memory corruption and BUG) was fixed to prevent a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork. (bsc#1099999)
• CVE-2018-13093: A NULL pointer dereference and panic in lookup_slow() on a NULL was fixed to prevent pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removed entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry could remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18445: Faulty computation of numeric bounds in the BPF verifier permitted out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bnc#1112372).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-18224: fs/ocfs2/aops.c omitted use of a semaphore and consequently had a race condition for access to the extent tree during read operations in DIRECT mode, which allowed local users to cause a denial of service (BUG) by modifying a certain e_cpos field (bnc#1084831).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).

The following non-security bugs were fixed:

• ACPI/APEI: Handle GSIV and GPIO notification types (bsc#1115567).
• ACPICA: Tables: Add WSMT support (bsc#1089350).
• ACPI/IORT: Fix iort_get_platform_device_domain() uninitialized pointer value (bsc#1051510).
• ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers (bsc#1051510).
• ACPI, nfit: Fix ARS overflow continuation (bsc#1116895).
• ACPI, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1112128).
• ACPI/nfit, x86/mce: Handle only uncorrectable machine checks (bsc#1114279).
• ACPI/nfit, x86/mce: Validate a MCE's address before using it (bsc#1114279).
• ACPI / platform: Add SMB0001 HID to forbidden_id_list (bsc#1051510).
• ACPI / processor: Fix the return value of acpi_processor_ids_walk() (bsc#1051510).
• ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM (bsc#1051510).
• act_ife: fix a potential use-after-free (networking-stable-18_09_11).
• Add the cherry-picked dup id for PCI dwc fix
• Add version information to KLP_SYMBOLS file
• ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write (bsc#1051510).
• ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops (bsc#1051510).
• ALSA: control: Fix race between adding and removing a user element (bsc#1051510).
• ALSA: hda: Add 2 more models to the power_save blacklist (bsc#1051510).
• ALSA: hda: Add ASRock N68C-S UCC the power_save blacklist (bsc#1051510).
• ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905) (bsc#1051510).
• ALSA: hda - Add quirk for ASUS G751 laptop (bsc#1051510).
• ALSA: hda/ca0132 - Call pci_iounmap() instead of iounmap() (bsc#1051510).
• ALSA: hda - Fix headphone pin config for ASUS G751 (bsc#1051510).
• ALSA: hda: fix unused variable warning (bsc#1051510).
• ALSA: hda/realtek - Add auto-mute quirk for HP Spectre x360 laptop (bsc#1051510).
• ALSA: hda/realtek - Add GPIO data update helper (bsc#1051510).
• ALSA: hda/realtek - Allow skipping spec->init_amp detection (bsc#1051510). -…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removed entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry could remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18445: Faulty computation of numeric bounds in the BPF verifier permitted out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandled 32-bit right shifts (bnc#1112372).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-18224: fs/ocfs2/aops.c omitted use of a semaphore and consequently had a race condition for access to the extent tree during read operations in DIRECT mode, which allowed local users to cause a denial of service (BUG) by modifying a certain e_cpos field (bnc#1084831).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).

The following non-security bugs were fixed:

• ACPI/APEI: Handle GSIV and GPIO notification types (bsc#1115567).
• ACPICA: Tables: Add WSMT support (bsc#1089350).
• ACPI/IORT: Fix iort_get_platform_device_domain() uninitialized pointer value (bsc#1051510).
• ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers (bsc#1051510).
• ACPI, nfit: Fix ARS overflow continuation (bsc#1116895).
• ACPI, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1112128).
• ACPI/nfit, x86/mce: Handle only uncorrectable machine checks (bsc#1114279).
• ACPI/nfit, x86/mce: Validate a MCE's address before using it (bsc#1114279).
• ACPI / platform: Add SMB0001 HID to forbidden_id_list (bsc#1051510).
• ACPI / processor: Fix the return value of acpi_processor_ids_walk() (bsc#1051510).
• ACPI / watchdog: Prefer iTCO_wdt always when WDAT table uses RTC SRAM (bsc#1051510).
• act_ife: fix a potential use-after-free (networking-stable-18_09_11).
• Add the cherry-picked dup id for PCI dwc fix
• Add version information to KLP_SYMBOLS file
• ALSA: ac97: Fix incorrect bit shift at AC97-SPSA control write (bsc#1051510).
• ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops (bsc#1051510).
• ALSA: control: Fix race between adding and removing a user element (bsc#1051510).
• ALSA: hda: Add 2 more models to the power_save blacklist (bsc#1051510).
• ALSA: hda: Add ASRock N68C-S UCC the power_save blacklist (bsc#1051510).
• ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905) (bsc#1051510).
• ALSA: hda - Add quirk for ASUS G751 laptop (bsc#1051510).
• ALSA: hda/ca0132 - Call pci_iounmap() instead of iounmap() (bsc#1051510).
• ALSA: hda - Fix headphone pin config for ASUS G751 (bsc#1051510).
• ALSA: hda: fix unused variable warning (bsc#1051510).
• ALSA: hda/realtek - Add auto-mute quirk for HP Spectre x360 laptop (bsc#1051510).
• ALSA: hda/realtek - Add GPIO data update helper (bsc#1051510).
• ALSA: hda/realtek - Allow skipping spec->init_amp detection (bsc#1051510). -…

The SUSE Linux Enterprise 12 SP3 Azure kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-9516: In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (bnc#1108498).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).
• CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bnc#1108399).
• CVE-2018-16597: Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem (bnc#1106512).
• CVE-2018-14613: There is an invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c (bnc#1102896).
• CVE-2018-14617: There is a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory (bnc#1102870).
• CVE-2018-16276: Local attackers could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges (bnc#1106095 bnc#1115593).
• 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#1087209). -…

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-19985: The function hso_probe read if_num from the USB device (as an u8) and used it without a length check to index an array, resulting in an OOB memory read in hso_probe or hso_get_config_data that could be used by local attackers (bnc#1120743).
• CVE-2018-16884: NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out (bnc#1119946).
• CVE-2018-20169: The USB subsystem mishandled size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c (bnc#1119714).
• CVE-2018-9568: In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bnc#1118319).
• CVE-2018-16862: A security flaw was found in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one (bnc#1117186).
• CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-9516: In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (bnc#1108498).
• CVE-2019-3459, CVE-2019-3460: The Blutooth stack suffered from two remote information leak vulnerabilities in the code that handles incoming L2cap configuration packets (bsc#1120758).

The following non-security bugs were fixed:

• aio: hold an extra file reference over AIO read/write operations (bsc#1116027).
• ata: Fix racy link clearance (bsc#1107866).
• btrfs: Fix wrong first_key parameter in replace_path (follow up fixes for bsc#1084721).
• cgroup, netclassid: add a preemption point to write_classid (bnc#1098996).
• cifs: Fix infinite loop when using hard mount option (bsc#1091171).
• dm round robin: revert 'use percpu 'repeat_count' and 'current_path'' (bsc#1113192)
• fscache: fix race between…

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

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2016-10741: fs/xfs/xfs_aops.c allowed local users to cause a denial of service (system crash) because there is a race condition between direct and memory-mapped I/O (associated with a hole) that is handled with BUG_ON instead of an I/O failure (bnc#1114920 bnc#1124010).
• CVE-2017-1000407: By flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic (bnc#1071021).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-7472: The KEYS subsystem allowed local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls (bnc#1034862).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. (bnc#1107829).
• CVE-2018-15572: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c did not always fill RSB upon a context switch, which made it easier for attackers to conduct userspace-userspace spectreRSB attacks (bnc#1102517 bnc#1105296).
• CVE-2018-16884: NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out (bnc#1119946).
• CVE-2018-18281: The mremap() syscall performed TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 3.0.101 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-9516: In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1108498).
• CVE-2018-19407: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c allowed local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized (bnc#1116841).
• CVE-2018-19985: The function hso_probe read if_num from the USB device (as an u8) and used it without a length check to index an array, resulting in an OOB memory read in hso_probe or hso_get_config_data that could be used by local attackers (bnc#1120743).
• CVE-2018-20169: The USB subsystem mishandled size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c (bnc#1119714).
• CVE-2018-9568: In sk_clone_lock of sock.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (bnc#1118319).
• CVE-2018-19824: A local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c (bnc#1118152).
• CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused (bnc#1113769).
• CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-1000407: Fixed a denial of service, which was caused by flooding the diagnostic port 0x80 an exception leading to a kernel panic (bnc#1071021).

The following non-security bugs were fixed:

• ALSA: pcm: Fix potential deadlock in OSS emulation (bsc#968018, bsc#1104366).
• cpusets, isolcpus: exclude isolcpus from load balancing in cpusets (bsc#1119255).
• Drivers: scsi: storvsc: Change the limits to reflect the values on the host (bug#1107189).
• drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure (bug#1107189).
• Drivers: scsi: storvsc: Filter commands based on the storage protocol version (bug#1107189).
• Drivers: scsi: storvsc: Fix a bug in handling VMBUS protocol version (bug#1107189).
• Drivers: scsi: storvsc: Implement a eh_timed_out handler (bug#1107189).
• Drivers: scsi: storvsc: Set cmd_per_lun to reflect value supported by the Host (bug#1107189).
• drivers: scsi: storvsc: Set srb_flags in all cases (bug#1107189).
• EHCI: improved logic for isochronous…

It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2647)

It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902)

It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896)

Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734)

It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276)

Tetsuo Handa discovered a logic error in the TTY subsystem of the Linux kernel. A local attacker with access to pseudo terminal devices could use this to cause a denial of service. (CVE-2018-18386)

Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690)

It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710)