CVE-2018-8822

Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.

Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.

These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.126 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-1091: In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service (bnc#1087231).
• CVE-2018-7740: The resv_map_release function in mm/hugetlb.c allowed local users to cause a denial of service (BUG) via a crafted application that made mmap system calls and has a large pgoff argument to the remap_file_pages system call (bnc#1084353).
• CVE-2018-8043: The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c did not validate certain resource availability, which allowed local users to cause a denial of service (NULL pointer dereference) (bnc#1084829).
• CVE-2017-18257: The __get_data_block function in fs/f2fs/data.c allowed local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl. (bnc#1088241)
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).

The following non-security bugs were fixed:

• acpica: Add header support for TPM2 table changes (bsc#1084452).
• acpica: Add support for new SRAT subtable (bsc#1085981).
• acpica: iasl: Update to IORT SMMUv3 disassembling (bsc#1085981).
• acpi/iort: numa: Add numa node mapping for smmuv3 devices (bsc#1085981).
• acpi, numa: fix pxm to online numa node associations (bnc#1012382).
• acpi / pmic: xpower: Fix power_table addresses (bnc#1012382).
• acpi/processor: Fix error handling in __acpi_processor_start() (bnc#1012382).
• acpi/processor: Replace racy task affinity logic (bnc#1012382).
• add mainline tag to various patches to be able to get further work done
• af_iucv: enable control sends in case of SEND_SHUTDOWN (bnc#1085507, LTC#165135).
• agp/intel: Flush all chipset writes after updating the GGTT (bnc#1012382).
• ahci: Add PCI-id for the Highpoint Rocketraid 644L card (bnc#1012382).
• alsa: aloop: Fix access to not-yet-ready substream via cable (bnc#1012382).
• alsa: aloop: Sync stale timer before release (bnc#1012382).
• alsa: firewire-digi00x: handle all MIDI messages on streaming packets (bnc#1012382).
• alsa: hda: Add a power_save blacklist (bnc#1012382).
• alsa: hda: add dock and led support for HP EliteBook 820 G3 (bnc#1012382).
• alsa: hda: add dock and led support for HP ProBook 640 G2 (bnc#1012382).
• alsa: hda/realtek - Always immediately update mute LED with pin VREF (bnc#1012382).
• alsa: hda/realtek - Fix dock line-out volume on Dell Precision 7520 (bnc#1012382).
• alsa: hda/realtek - Fix speaker no sound after system resume (bsc#1031717).
• alsa: hda - Revert power_save option default value (git-fixes).
• alsa: pcm: Fix UAF in snd_pcm_oss_get_formats() (bnc#1012382).
• alsa: usb-audio: Add a quirck for B&W PX headphones (bnc#1012382).
• alsa: usb-audio: Fix parsing descriptor of UAC2 processing unit (bnc#1012382).
• apparmor: Make path_max parameter readonly (bnc#1012382).
• arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support (bsc#1068032).
• arm64: Add missing Falkor part number for branch predictor hardening (bsc#1068032).
• arm64: capabilities: Handle duplicate entries for a capability (bsc#1068032).
• arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early (bsc#1068032).
• arm64 / cpuidle: Use new cpuidle macro for entering retention state (bsc#1084328).
• arm64: Enforce BBM for huge IO/VMAP mappings (bsc#1088313).
• arm64: fix smccc compilation (bsc#1068032).
• arm64: Kill PSCI_GET_VERSION as a variant-2 workaround (bsc#1068032).
• arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1…

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

The following security bugs were fixed:

• CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032).

  Enhancements and bugfixes over the previous fixes have been added to this kernel.

• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).

• 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-2018-7566: There was a buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user (bnc#1083483).

• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).

• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).

• CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865).

• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allowed local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).

• CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).

• CVE-2017-18208: The madvise_willneed function in mm/madvise.c local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).

• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).

• CVE-2018-6927: The futex_requeue function in kernel/futex.c in the Linux kernel might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).

• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).

• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).

• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).

• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a…

The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• 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 1087209).
• CVE-2018-7566: A Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user was fixed (bnc#1083483).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).
• CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function in kernel/futex.c might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).
• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to 4.4.121 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability that allowed local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bnc#1090643).
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might have allowed local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• CVE-2017-18257: The __get_data_block function in fs/f2fs/data.c in the Linux kernel allowed local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl. (bnc#1088241)
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2018-8043: The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c did not validate certain resource availability, which allowed local users to cause a denial of service (NULL pointer dereference) (bnc#1084829).
• CVE-2018-7740: The resv_map_release function in mm/hugetlb.c allowed local users to cause a denial of service (BUG) via a crafted application that made mmap system calls and has a large pgoff argument to the remap_file_pages system call (bnc#1084353).
• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)

The following non-security bugs were fixed:

• alsa: hda/realtek - Fix speaker no sound after system resume (bsc#1031717).
• alsa: hda: Add a power_save blacklist (bnc#1012382).
• alsa: usb-audio: Add a quirck for B&W PX headphones (bnc#1012382).
• arm: dts: LogicPD Torpedo: Fix I2C1 pinmux (bnc#1012382).
• arm: mvebu: Fix broken PL310_ERRATA_753970 selects (bnc#1012382).
• kvm: mmu: Fix overlap between public and private memslots (bnc#1012382).
• Partial revert 'e1000e: Avoid receiver overrun interrupt bursts' (bsc#1075428).
• Revert 'e1000e: Separate signaling for link check/link up' (bsc#1075428).
• Revert 'led: core: Fix brightness setting when setting delay_off=0' (bnc#1012382).
• Revert 'watchdog: hpwdt: Remove legacy NMI sourcing (bsc#1085185).' This reverts commit 5d4a2355a2a1c2ec6fdf9d18b68ca0a04ff73c70.
• bpf, x64: implement retpoline for tail call (bnc#1012382).
• bridge: check brport attr show in brport_show (bnc#1012382).
• btrfs: Only check first key for committed tree blocks (bsc#1084721).
• btrfs: Validate child tree block's level and first key (bsc#1084721).
• btrfs: preserve i_mode if __btrfs_set_acl() fails (bnc#1012382).
• ch9200: use skb_cow_head() to deal with cloned skbs (bsc#1088684).
• cpufreq: s3c24xx: Fix broken s3c_cpufreq_init() (bnc#1012382).
• dcache: Add cond_resched in shrink_dentry_list (bsc#1086194).
• dm io: fix duplicate bio completion due to missing ref count (bnc#1012382).
• drm/i915/cmdparser: Do not check past the cmd length (bsc#1031717).
• drm/i915/psr: Check for the specific AUX_FRAME_SYNC cap bit (bsc#1031717).
• e1000e: Avoid missed interrupts following ICR read (bsc#1075428).
• e1000e: Avoid receiver overrun interrupt bursts (bsc#1075428).
• e1000e: Fix check_for_link return value with autoneg off (bsc#1075428).
• e1000e: Fix link check race condition (bsc#1075428).
• e1000e: Fix queue interrupt re-raising in Other interrupt (bsc#1075428).
• e1000e: Remove…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to 4.4.121 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability that allowed local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bnc#1090643).
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might have allowed local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• CVE-2017-18257: The __get_data_block function in fs/f2fs/data.c in the Linux kernel allowed local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl. (bnc#1088241)
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2018-8043: The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c did not validate certain resource availability, which allowed local users to cause a denial of service (NULL pointer dereference) (bnc#1084829).
• CVE-2018-7740: The resv_map_release function in mm/hugetlb.c allowed local users to cause a denial of service (BUG) via a crafted application that made mmap system calls and has a large pgoff argument to the remap_file_pages system call (bnc#1084353).
• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)

The following non-security bugs were fixed:

• alsa: hda/realtek - Fix speaker no sound after system resume (bsc#1031717).
• alsa: hda: Add a power_save blacklist (bnc#1012382).
• alsa: usb-audio: Add a quirck for B&W PX headphones (bnc#1012382).
• arm: dts: LogicPD Torpedo: Fix I2C1 pinmux (bnc#1012382).
• arm: mvebu: Fix broken PL310_ERRATA_753970 selects (bnc#1012382).
• kvm: mmu: Fix overlap between public and private memslots (bnc#1012382).
• Partial revert 'e1000e: Avoid receiver overrun interrupt bursts' (bsc#1075428).
• Revert 'e1000e: Separate signaling for link check/link up' (bsc#1075428).
• Revert 'led: core: Fix brightness setting when setting delay_off=0' (bnc#1012382).
• Revert 'watchdog: hpwdt: Remove legacy NMI sourcing (bsc#1085185).' This reverts commit 5d4a2355a2a1c2ec6fdf9d18b68ca0a04ff73c70.
• bpf, x64: implement retpoline for tail call (bnc#1012382).
• bridge: check brport attr show in brport_show (bnc#1012382).
• btrfs: Only check first key for committed tree blocks (bsc#1084721).
• btrfs: Validate child tree block's level and first key (bsc#1084721).
• btrfs: preserve i_mode if __btrfs_set_acl() fails (bnc#1012382).
• ch9200: use skb_cow_head() to deal with cloned skbs (bsc#1088684).
• cpufreq: s3c24xx: Fix broken s3c_cpufreq_init() (bnc#1012382).
• dcache: Add cond_resched in shrink_dentry_list (bsc#1086194).
• dm io: fix duplicate bio completion due to missing ref count (bnc#1012382).
• drm/i915/cmdparser: Do not check past the cmd length (bsc#1031717).
• drm/i915/psr: Check for the specific AUX_FRAME_SYNC cap bit (bsc#1031717).
• e1000e: Avoid missed interrupts following ICR read (bsc#1075428).
• e1000e: Avoid receiver overrun interrupt bursts (bsc#1075428).
• e1000e: Fix check_for_link return value with autoneg off (bsc#1075428).
• e1000e: Fix link check race condition (bsc#1075428).
• e1000e: Fix queue interrupt re-raising in Other interrupt (bsc#1075428).
• e1000e: Remove…

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.128 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-10124: The kill_something_info function in kernel/signal.c might have allowed local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• CVE-2017-18257: The __get_data_block function in fs/f2fs/data.c allowed local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl (bnc#1088241)
• CVE-2018-1091: In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service (bnc#1087231).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function could have been exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2018-8043: The unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c did not validate certain resource availability, which allowed local users to cause a denial of service (NULL pointer dereference) (bnc#1084829).
• CVE-2018-7740: The resv_map_release function in mm/hugetlb.c allowed local users to cause a denial of service (BUG) via a crafted application that made mmap system calls and has a large pgoff argument to the remap_file_pages system call (bnc#1084353).

The following non-security bugs were fixed:

• Fix ltp might_sleep() splat BUG
• ACPI / PMIC: xpower: Fix power_table addresses (bnc#1012382).
• ACPI, PCI, irq: remove redundant check for null string pointer (bnc#1012382).
• ACPI/IORT: numa: Add numa node mapping for smmuv3 devices (bsc#1085981).
• ACPI/processor: Fix error handling in __acpi_processor_start() (bnc#1012382).
• ACPI/processor: Replace racy task affinity logic (bnc#1012382).
• ACPICA: Add header support for TPM2 table changes (bsc#1084452).
• ACPICA: Add support for new SRAT subtable (bsc#1085981).
• ACPICA: Disassembler: Abort on an invalid/unknown AML opcode (bnc#1012382).
• ACPICA: Events: Add runtime stub support for event APIs (bnc#1012382).
• ACPICA: iasl: Update to IORT SMMUv3 disassembling (bsc#1085981).
• ALSA: aloop: Fix access to not-yet-ready substream via cable (bnc#1012382).
• ALSA: aloop: Sync stale timer before release (bnc#1012382).
• ALSA: firewire-digi00x: handle all MIDI messages on streaming packets (bnc#1012382).
• ALSA: hda - Revert power_save option default value (git-fixes).
• ALSA: hda/realtek - Always immediately update mute LED with pin VREF (bnc#1012382).
• ALSA: hda/realtek - Fix dock line-out volume on Dell Precision 7520 (bnc#1012382).
• ALSA: hda/realtek - Fix speaker no sound after system resume (bsc#1031717).
• ALSA: hda: Add a power_save blacklist (bnc#1012382).
• ALSA: hda: add dock and led support for HP EliteBook 820 G3 (bnc#1012382).
• ALSA: hda: add dock and led support for HP ProBook 640 G2 (bnc#1012382).
• ALSA: pcm: Fix UAF in snd_pcm_oss_get_formats() (bnc#1012382).
• ALSA: pcm: Use dma_bytes as size parameter in dma_mmap_coherent() (bnc#1012382).
• ALSA: pcm: potential uninitialized return values (bnc#1012382).
• ALSA: usb-audio: Add a quirck for BW PX headphones (bnc#1012382).
• ALSA: usb-audio: Fix parsing descriptor of UAC2 processing unit (bnc#1012382).
• ARM64 / cpuidle: Use new cpuidle macro for entering retention state (bsc#1084328).
• ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTER (bnc#1012382).
• ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP (bnc#1012382). -…

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

The following security bugs were fixed:

• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
• CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bnc#1090643).
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c in might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• 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-2017-13220: An elevation of privilege vulnerability in the Upstream kernel bluez was fixed. (bnc#1076537).
• CVE-2017-11089: A buffer overread is observed in nl80211_set_station when user space application sends attribute NL80211_ATTR_LOCAL_MESH_POWER_MODE with data of size less than 4 bytes (bnc#1088261).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allowed local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).

The following non-security bugs were fixed:

• Integrate fixes resulting from bsc#1088147 More info in the respective commit messages.
• kabi: x86/kaiser: properly align trampoline stack (bsc#1087260).
• dcache: Add cond_resched in shrink_dentry_list (bsc#1086194).
• kGraft: fix small race in reversion code (bsc#1083125).
• kabi/severities: Ignore kgr_shadow_* kABI changes
• kvm/x86: fix icebp instruction handling (bsc#1087088).
• livepatch: Allow to call a custom callback when freeing shadow variables (bsc#1082299 fate#313296).
• livepatch: Initialize shadow variables safely by a custom callback (bsc#1082299 fate#313296).
• usbnet: Fix a race between usbnet_stop() and the BH (bsc#1083275).
• x86/entry/64: Do not use IST entry for #BP stack (bsc#1087088).
• x86/espfix: Fix return stack in do_double_fault() (bsc#1085279).
• x86/kaiser: properly align trampoline stack (bsc#1087260).
• x86/retpoline: do not perform thunk calls in ring3 vsyscall code (bsc#1085331).

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

The following security bugs were fixed:

• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
• CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bnc#1090643).
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• 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 1087209).
• CVE-2017-13220: An elevation of privilege vulnerability in the Upstream kernel bluez was fixed. (bnc#1076537).
• CVE-2017-11089: A buffer overread was observed in nl80211_set_station when user space application sends attribute NL80211_ATTR_LOCAL_MESH_POWER_MODE with data of size less than 4 bytes (bnc#1088261).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).

The following non-security bugs were fixed:

• Integrate fixes resulting from bsc#1088147 More info in the respective commit messages.
• KABI: x86/kaiser: properly align trampoline stack (bsc#1087260).
• kGraft: fix small race in reversion code (bsc#1083125).
• kabi/severities: Ignore kgr_shadow_* kABI changes
• kvm/x86: fix icebp instruction handling (bsc#1087088).
• livepatch: Allow to call a custom callback when freeing shadow variables (bsc#1082299 fate#313296).
• livepatch: Initialize shadow variables safely by a custom callback (bsc#1082299 fate#313296).
• x86/entry/64: Do not use IST entry for #BP stack (bsc#1087088).
• x86/kaiser: properly align trampoline stack (bsc#1087260).
• x86/retpoline: do not perform thunk calls in ring3 vsyscall code (bsc#1085331).

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

The following security bugs were fixed:

• CVE-2018-10124: The kill_something_info function in kernel/signal.c might have allowed local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• 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-2018-7566: Buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user potentially allowing for code execution (bnc#1083483).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260 1088268).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function could have beenexploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-13166: Prevent elevation of privilege vulnerability in the video driver (bnc#1072865).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).
• CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function in kernel/futex.c allowed attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).
• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector had small consecutive buffers belonging to the same page. The bio_add_pc_page function merged them into one, but the page reference was never dropped. This caused a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568).
• CVE-2017-16912: The…

USN-3653-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS.

Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639)

It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information (kernel netlink traffic). (CVE-2017-17449)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975)

It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203)

It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel in certain circumstances. A local attacker could use this to cause a denial of service (system hang). (CVE-2017-18208)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)

Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975)

It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193)

It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222)

It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065)

It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068)

It was discovered that a null pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130)

It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803)

It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480)

It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757)

It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995)

Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)

USN-3654-1 fixed vulnerabilities and added mitigations in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975)

It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193)

It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222)

It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065)

It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068)

It was discovered that a null pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130)

It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803)

It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480)

It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757)

It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995)

Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)

Jann Horn and Ken Johnson discovered that microprocessors utilizing speculative execution of a memory read may allow unauthorized memory reads via a sidechannel attack. This flaw is known as Spectre Variant 4. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2018-3639)

Jan H. Schönherr discovered that the Xen subsystem did not properly handle block IO merges correctly in some situations. An attacker in a guest vm could use this to cause a denial of service (host crash) or possibly gain administrative privileges in the host. (CVE-2017-12134)

It was discovered that the Bluetooth HIP Protocol implementation in the Linux kernel did not properly validate HID connection setup information. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-13220)

It was discovered that a buffer overread vulnerability existed in the keyring subsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2017-13305)

It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information (kernel netlink traffic). (CVE-2017-17449)

It was discovered that a race condition existed in the i8042 serial device driver implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18079)

It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203)

It was discovered that a race condition existed in the OCFS2 file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2017-18204)

It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel in certain circumstances. A local attacker could use this to cause a denial of service (system hang). (CVE-2017-18208)

Kefeng Wang discovered that a race condition existed in the memory locking implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2017-18221)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)

Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975)

It was discovered that a race condition existed in the F2FS implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18193)

It was discovered that a buffer overflow existed in the Hisilicon HNS Ethernet Device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18222)

It was discovered that the netfilter subsystem in the Linux kernel did not validate that rules containing jumps contained user-defined chains. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1065)

It was discovered that the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068)

It was discovered that a null pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130)

It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803)

It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7480)

It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757)

It was discovered that a race condition existed in the x86 machine check handler in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-7995)

Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781)

Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)