This bug was fixed in the package linux - 4.15.0-55.60 --------------- linux (4.15.0-55.60) bionic; urgency=medium * linux: 4.15.0-55.60 -proposed tracker (LP: #1834954) * Request backport of ceph commits into bionic (LP: #1834235) - ceph: use atomic_t for ceph_inode_info::i_shared_gen - ceph: define argument structure for handle_cap_grant - ceph: flush pending works before shutdown super - ceph: send cap releases more aggressively - ceph: single workqueue for inode related works - ceph: avoid dereferencing invalid pointer during cached readdir - ceph: quota: add initial infrastructure to support cephfs quotas - ceph: quota: support for ceph.quota.max_files - ceph: quota: don't allow cross-quota renames - ceph: fix root quota realm check - ceph: quota: support for ceph.quota.max_bytes - ceph: quota: update MDS when max_bytes is approaching - ceph: quota: add counter for snaprealms with quota - ceph: avoid iput_final() while holding mutex or in dispatch thread * QCA9377 isn't being recognized sometimes (LP: #1757218) - SAUCE: USB: Disable USB2 LPM at shutdown * hns: fix ICMP6 neighbor solicitation messages discard problem (LP: #1833140) - net: hns: fix ICMP6 neighbor solicitation messages discard problem - net: hns: fix unsigned comparison to less than zero * Fix occasional boot time crash in hns driver (LP: #1833138) - net: hns: Fix probabilistic memory overwrite when HNS driver initialized * use-after-free in hns_nic_net_xmit_hw (LP: #1833136) - net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw() * hns: attempt to restart autoneg when disabled should report error (LP: #1833147) - net: hns: Restart autoneg need return failed when autoneg off * systemd 237-3ubuntu10.14 ADT test failure on Bionic ppc64el (test-seccomp) (LP: #1821625) - powerpc: sys_pkey_alloc() and sys_pkey_free() system calls - powerpc: sys_pkey_mprotect() system call * [UBUNTU] pkey: Indicate old mkvp only if old and curr. mkvp are different (LP: #1832625) - pkey: Indicate old mkvp only if old and current mkvp are different * [UBUNTU] kernel: Fix gcm-aes-s390 wrong scatter-gather list processing (LP: #1832623) - s390/crypto: fix gcm-aes-s390 selftest failures * System crashes on hot adding a core with drmgr command (4.15.0-48-generic) (LP: #1833716) - powerpc/numa: improve control of topology updates - powerpc/numa: document topology_updates_enabled, disable by default * Kernel modules generated incorrectly when system is localized to a non- English language (LP: #1828084) - scripts: override locale from environment when running recordmcount.pl * [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs (LP: #1832624) - s390/zcrypt: Fix wrong dispatching for control domain CPRBs * CVE-2019-11815 - net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). * Sound device not detected after resume from hibernate (LP: #1826868) - drm/i915: Force 2*96 MHz cdclk on glk/cnl when audio power is enabled - drm/i915: Save the old CDCLK atomic state - drm/i915: Remove redundant store of logical CDCLK state - drm/i915: Skip modeset for cdclk changes if possible * Handle overflow in proc_get_long of sysctl (LP: #1833935) - sysctl: handle overflow in proc_get_long * Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe drains lots of power under s2idle (LP: #1808957) - Revert "UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being disabled" - Revert "UBUNTU: SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "UBUNTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3" - Revert "SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "SAUCE: pci: prevent sk hynix nvme from entering D3" - PCI: PM: Avoid possible suspend-to-idle issue - PCI: PM: Skip devices in D0 for suspend-to-idle - nvme-pci: Sync queues on reset - nvme: Export get and set features - nvme-pci: Use host managed power state for suspend * linux v4.15 ftbfs on a newer host kernel (e.g. hwe) (LP: #1823429) - selinux: use kernel linux/socket.h for genheaders and mdp * 32-bit x86 kernel 4.15.0-50 crash in vmalloc_sync_all (LP: #1830433) - x86/mm/pat: Disable preemption around __flush_tlb_all() - x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init() - x86/mm: Disable ioremap free page handling on x86-PAE - ioremap: Update pgtable free interfaces with addr - x86/mm: Add TLB purge to free pmd/pte page interfaces - x86/init: fix build with CONFIG_SWAP=n - x86/mm: provide pmdp_establish() helper - x86/mm: Use WRITE_ONCE() when setting PTEs * hinic: fix oops due to race in set_rx_mode (LP: #1832048) - hinic: fix a bug in set rx mode * ubuntu 18.04 flickering screen with Radeon X1600 (LP: #1791312) - drm/radeon: prefer lower reference dividers * Login screen never appears on vmwgfx using bionic kernel 4.15 (LP: #1832138) - drm/vmwgfx: use monotonic event timestamps * [linux-azure] Block Layer Commits Requested in Azure Kernels (LP: #1834499) - block: Clear kernel memory before copying to user - block/bio: Do not zero user pages * CONFIG_LOG_BUF_SHIFT set to 14 is too low on arm64 (LP: #1824864) - [Config] CONFIG_LOG_BUF_SHIFT=18 on all 64bit arches * Handle overflow for file-max (LP: #1834310) - sysctl: handle overflow for file-max - kernel/sysctl.c: fix out-of-bounds access when setting file-max * [ALSA] [PATCH] Headset fixup for System76 Gazelle (gaze14) (LP: #1827555) - ALSA: hda/realtek - Headset fixup for System76 Gazelle (gaze14) - ALSA: hda/realtek - Corrected fixup for System76 Gazelle (gaze14) * crashdump fails on HiSilicon D06 (LP: #1828868) - iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel - iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel * CVE-2019-11833 - ext4: zero out the unused memory region in the extent tree block * zfs 0.7.9 fixes a bug (https://github.com/zfsonlinux/zfs/pull/7343) that hangs the system completely (LP: #1772412) - SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.6 * does not detect headphone when there is no other output devices (LP: #1831065) - ALSA: hda/realtek - Fixed hp_pin no value - ALSA: hda/realtek - Use a common helper for hp pin reference * kernel crash : net_sched race condition in tcindex_destroy() (LP: #1825942) - net_sched: fix NULL pointer dereference when delete tcindex filter - RCU, workqueue: Implement rcu_work - net_sched: switch to rcu_work - net_sched: fix a race condition in tcindex_destroy() - net_sched: fix a memory leak in cls_tcindex - net_sched: initialize net pointer inside tcf_exts_init() - net_sched: fix two more memory leaks in cls_tcindex * Support new ums-realtek device (LP: #1831840) - USB: usb-storage: Add new ID to ums-realtek * amd_iommu possible data corruption (LP: #1823037) - iommu/amd: Reserve exclusion range in iova-domain - iommu/amd: Set exclusion range correctly * Add new sound card PCIID into the alsa driver (LP: #1832299) - ALSA: hda: Add Icelake PCI ID - ALSA: hda/intel: add CometLake PCI IDs * sky2 ethernet card doesn't work after returning from suspend (LP: #1807259) // sky2 ethernet card link not up after suspend (LP: #1809843) - sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79 * idle-page oopses when accessing page frames that are out of range (LP: #1833410) - mm/page_idle.c: fix oops because end_pfn is larger than max_pfn * Add pointstick support on HP ZBook 17 G5 (LP: #1833387) - Revert "HID: multitouch: Support ALPS PTP stick with pid 0x120A" - SAUCE: HID: multitouch: Add pointstick support for ALPS Touchpad * [SRU][B/B-OEM/B-OEM-OSP-1/C/D/E] Add trackpoint middle button support of 2 new thinpads (LP: #1833637) - Input: elantech - enable middle button support on 2 ThinkPads * CVE-2019-11085 - drm/i915/gvt: Fix mmap range check - drm/i915: make mappable struct resource centric - drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on * CVE-2019-11884 - Bluetooth: hidp: fix buffer overflow * af_alg06 test from crypto test suite in LTP failed with kernel oops on B/C (LP: #1829725) - crypto: authenc - fix parsing key with misaligned rta_len * CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130 // CVE-2019-11091 - SAUCE: Synchronize MDS mitigations with upstream - Documentation: Correct the possible MDS sysfs values - x86/speculation/mds: Fix documentation typo * CVE-2019-11091 - x86/mds: Add MDSUM variant to the MDS documentation * alignment test in powerpc from ubuntu_kernel_selftests failed on B/C Power9 (LP: #1813118) - selftests/powerpc: Remove Power9 copy_unaligned test * TRACE_syscall.ptrace_syscall_dropped in seccomp from ubuntu_kernel_selftests failed on B/C PowerPC (LP: #1812796) - selftests/seccomp: Enhance per-arch ptrace syscall skip tests * Add powerpc/alignment_handler test for selftests (LP: #1828935) - selftests/powerpc: Add alignment handler selftest - selftests/powerpc: Fix to use ucontext_t instead of struct ucontext * Cannot build kernel 4.15.0-48.51 due to an in-source-tree ZFS module. (LP: #1828763) - SAUCE: (noup) Update zfs to 0.7.5-1ubuntu16.5 * Eletrical noise occurred when external headset enter powersaving mode on a DEll machine (LP: #1828798) - ALSA: hda/realtek - Reduce click noise on Dell Precision 5820 headphone - ALSA: hda/realtek - Fixup headphone noise via runtime suspend * [18.04/18.10] File libperf-jvmti.so is missing in linux-tools-common deb on Ubuntu (LP: #1761379) - [Packaging] Support building libperf-jvmti.so * TCP : race condition on socket ownership in tcp_close() (LP: #1830813) - tcp: do not release socket ownership in tcp_close() * bionic: netlink: potential shift overflow in netlink_bind() (LP: #1831103) - netlink: Don't shift on 64 for ngroups * Add support to Comet Lake LPSS (LP: #1830175) - mfd: intel-lpss: Add Intel Comet Lake PCI IDs * Reduce NAPI weight in hns driver from 256 to 64 (LP: #1830587) - net: hns: Use NAPI_POLL_WEIGHT for hns driver * x86: add support for AMD Rome (LP: #1819485) - x86: irq_remapping: Move irq remapping mode enum - iommu/amd: Add support for higher 64-bit IOMMU Control Register - iommu/amd: Add support for IOMMU XT mode - hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs - hwmon/k10temp: Add support for AMD family 17h, model 30h CPUs - x86/amd_nb: Add PCI device IDs for family 17h, model 30h - x86/MCE/AMD: Fix the thresholding machinery initialization order - x86/amd_nb: Add support for newer PCI topologies * nx842 - CRB request time out (-110) when uninstall NX modules and initiate NX request (LP: #1827755) - crypto/nx: Initialize 842 high and normal RxFIFO control registers * Require improved hypervisor detection patch in Ubuntu 18.04 (LP: #1829972) - s390/early: improve machine detection -- Kleber Sacilotto de Souza