This bug was fixed in the package linux - 4.15.0-50.54

---------------
linux (4.15.0-50.54) bionic; urgency=medium

  * CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130
    - Documentation/l1tf: Fix small spelling typo
    - x86/cpu: Sanitize FAM6_ATOM naming
    - kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
    - locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a
      new <linux/bits.h> file
    - tools include: Adopt linux/bits.h
    - x86/msr-index: Cleanup bit defines
    - x86/speculation: Consolidate CPU whitelists
    - x86/speculation/mds: Add basic bug infrastructure for MDS
    - x86/speculation/mds: Add BUG_MSBDS_ONLY
    - x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
    - x86/speculation/mds: Add mds_clear_cpu_buffers()
    - x86/speculation/mds: Clear CPU buffers on exit to user
    - x86/kvm/vmx: Add MDS protection when L1D Flush is not active
    - x86/speculation/mds: Conditionally clear CPU buffers on idle entry
    - x86/speculation/mds: Add mitigation control for MDS
    - x86/speculation/mds: Add sysfs reporting for MDS
    - x86/speculation/mds: Add mitigation mode VMWERV
    - Documentation: Move L1TF to separate directory
    - Documentation: Add MDS vulnerability documentation
    - x86/speculation/mds: Add mds=full,nosmt cmdline option
    - x86/speculation: Move arch_smt_update() call to after mitigation decisions
    - x86/speculation/mds: Add SMT warning message
    - x86/speculation/mds: Fix comment
    - x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
    - x86/speculation/mds: Add 'mitigations=' support for MDS

  * CVE-2017-5715 // CVE-2017-5753
    - s390/speculation: Support 'mitigations=' cmdline option

  * CVE-2017-5715 // CVE-2017-5753 // CVE-2017-5754 // CVE-2018-3639
    - powerpc/speculation: Support 'mitigations=' cmdline option

  * CVE-2017-5715 // CVE-2017-5754 // CVE-2018-3620 // CVE-2018-3639 //
    CVE-2018-3646
    - cpu/speculation: Add 'mitigations=' cmdline option
    - x86/speculation: Support 'mitigations=' cmdline option

  * Packaging resync (LP: #1786013)
    - [Packaging] resync git-ubuntu-log

linux (4.15.0-49.53) bionic; urgency=medium

  * linux: 4.15.0-49.53 -proposed tracker (LP: #1826358)

  * Backport support for software count cache flush Spectre v2 mitigation. (CVE)
    (required for POWER9 DD2.3) (LP: #1822870)
    - powerpc/64s: Add support for ori barrier_nospec patching
    - powerpc/64s: Patch barrier_nospec in modules
    - powerpc/64s: Enable barrier_nospec based on firmware settings
    - powerpc: Use barrier_nospec in copy_from_user()
    - powerpc/64: Use barrier_nospec in syscall entry
    - powerpc/64s: Enhance the information in cpu_show_spectre_v1()
    - powerpc/64: Disable the speculation barrier from the command line
    - powerpc/64: Make stf barrier PPC_BOOK3S_64 specific.
    - powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
    - powerpc/64: Call setup_barrier_nospec() from setup_arch()
    - powerpc/64: Make meltdown reporting Book3S 64 specific
    - powerpc/lib/code-patching: refactor patch_instruction()
    - powerpc/lib/feature-fixups: use raw_patch_instruction()
    - powerpc/asm: Add a patch_site macro & helpers for patching instructions
    - powerpc/64s: Add new security feature flags for count cache flush
    - powerpc/64s: Add support for software count cache flush
    - powerpc/pseries: Query hypervisor for count cache flush settings
    - powerpc/powernv: Query firmware for count cache flush settings
    - powerpc/fsl: Add nospectre_v2 command line argument
    - KVM: PPC: Book3S: Add count cache flush parameters to 
kvmppc_get_cpu_char()
    - [Config] Add CONFIG_PPC_BARRIER_NOSPEC

  * Packaging resync (LP: #1786013)
    - [Packaging] resync git-ubuntu-log

  * autopkgtests run too often, too much and don't skip enough (LP: #1823056)
    - [Debian] Set +x on rebuild testcase.
    - [Debian] Skip rebuild test, for regression-suite deps.
    - [Debian] Make ubuntu-regression-suite skippable on unbootable kernels.
    - [Debian] make rebuild use skippable error codes when skipping.
    - [Debian] Only run regression-suite, if requested to.

  * bionic: fork out linux-snapdragon into its own topic kernel (LP: #1820868)
    - [Packaging] remove arm64 snapdragon from getabis
    - [Config] config changes for snapdragon split
    - packaging: arm64: disable building the snapdragon flavour
    - [Packaging] arm64: Drop snapdragon from kernel-versions

  * CVE-2017-5753
    - KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_get_irq()
    - media: dvb_ca_en50221: prevent using slot_info for Spectre attacs
    - sysvipc/sem: mitigate semnum index against spectre v1
    - libahci: Fix possible Spectre-v1 pmp indexing in ahci_led_store()
    - s390/keyboard: sanitize array index in do_kdsk_ioctl
    - arm64: fix possible spectre-v1 write in ptrace_hbp_set_event()
    - KVM: arm/arm64: vgic: Fix possible spectre-v1 write in 
vgic_mmio_write_apr()
    - pktcdvd: Fix possible Spectre-v1 for pkt_devs
    - net: socket: fix potential spectre v1 gadget in socketcall
    - net: socket: Fix potential spectre v1 gadget in sock_is_registered
    - drm/amdgpu/pm: Fix potential Spectre v1
    - netlink: Fix spectre v1 gadget in netlink_create()
    - ext4: fix spectre gadget in ext4_mb_regular_allocator()
    - drm/i915/kvmgt: Fix potential Spectre v1
    - net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
    - fs/quota: Fix spectre gadget in do_quotactl
    - hwmon: (nct6775) Fix potential Spectre v1
    - mac80211_hwsim: Fix possible Spectre-v1 for hwsim_world_regdom_custom
    - switchtec: Fix Spectre v1 vulnerability
    - misc: hmc6352: fix potential Spectre v1
    - tty: vt_ioctl: fix potential Spectre v1
    - nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT
    - nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds
    - IB/ucm: Fix Spectre v1 vulnerability
    - RDMA/ucma: Fix Spectre v1 vulnerability
    - drm/bufs: Fix Spectre v1 vulnerability
    - usb: gadget: storage: Fix Spectre v1 vulnerability
    - ptp: fix Spectre v1 vulnerability
    - HID: hiddev: fix potential Spectre v1
    - vhost: Fix Spectre V1 vulnerability
    - drivers/misc/sgi-gru: fix Spectre v1 vulnerability
    - ipv4: Fix potential Spectre v1 vulnerability
    - aio: fix spectre gadget in lookup_ioctx
    - ALSA: emux: Fix potential Spectre v1 vulnerabilities
    - ALSA: pcm: Fix potential Spectre v1 vulnerability
    - ip6mr: Fix potential Spectre v1 vulnerability
    - ALSA: rme9652: Fix potential Spectre v1 vulnerability
    - ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
    - KVM: arm/arm64: vgic: Fix off-by-one bug in vgic_get_irq()
    - drm/ioctl: Fix Spectre v1 vulnerabilities
    - char/mwave: fix potential Spectre v1 vulnerability
    - applicom: Fix potential Spectre v1 vulnerabilities
    - ipmi: msghandler: Fix potential Spectre v1 vulnerabilities
    - powerpc/ptrace: Mitigate potential Spectre v1
    - cfg80211: prevent speculation on cfg80211_classify8021d() return
    - ALSA: rawmidi: Fix potential Spectre v1 vulnerability
    - ALSA: seq: oss: Fix Spectre v1 vulnerability

  * Bionic: Sync to Xenial (Spectre) (LP: #1822760)
    - x86/speculation/l1tf: Suggest what to do on systems with too much RAM
    - KVM: SVM: Add MSR-based feature support for serializing LFENCE
    - KVM: VMX: fixes for vmentry_l1d_flush module parameter
    - KVM: X86: Allow userspace to define the microcode version
    - SAUCE: [Fix] x86/KVM/VMX: Add L1D flush logic
    - SAUCE: [Fix] x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on
      vmentry

  * [SRU] [B/OEM] Fix ACPI bug that causes boot failure (LP: #1819921)
    - SAUCE: ACPI / bus: Add some Lenovo laptops in list of acpi table term list

  * Bionic update: upstream stable patchset for fuse 2019-04-12 (LP: #1824553)
    - fuse: fix double request_end()
    - fuse: fix unlocked access to processing queue
    - fuse: umount should wait for all requests
    - fuse: Fix oops at process_init_reply()
    - fuse: Don't access pipe->buffers without pipe_lock()
    - fuse: Fix use-after-free in fuse_dev_do_read()
    - fuse: Fix use-after-free in fuse_dev_do_write()
    - fuse: set FR_SENT while locked
    - fuse: fix blocked_waitq wakeup
    - fuse: fix leaked notify reply
    - fuse: fix possibly missed wake-up after abort
    - fuse: fix use-after-free in fuse_direct_IO()
    - fuse: continue to send FUSE_RELEASEDIR when FUSE_OPEN returns ENOSYS
    - fuse: handle zero sized retrieve correctly
    - fuse: call pipe_buf_release() under pipe lock
    - fuse: decrement NR_WRITEBACK_TEMP on the right page

  * Backport support for software count cache flush Spectre v2 mitigation. (CVE)
    (required for POWER9 DD2.3) (LP: #1822870) // Backport support for software
    count cache flush Spectre v2 mitigation. (CVE) (required for POWER9 DD2.3)
    (LP: #1822870)
    - powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2
    - powerpc/fsl: Fix spectre_v2 mitigations reporting
    - powerpc: Avoid code patching freed init sections

  * Backport support for software count cache flush Spectre v2 mitigation. (CVE)
    (required for POWER9 DD2.3) (LP: #1822870) // Backport support for software
    count cache flush Spectre v2 mitigation. (CVE) (required for POWER9 DD2.3)
    (LP: #1822870) // Backport support for software count cache flush Spectre v2
    mitigation. (CVE) (required for POWER9 DD2.3) (LP: #1822870)
    - powerpc/security: Fix spectre_v2 reporting

  * CVE-2019-3874
    - sctp: use sk_wmem_queued to check for writable space
    - sctp: implement memory accounting on tx path
    - sctp: implement memory accounting on rx path

  * NULL pointer dereference when using z3fold and zswap (LP: #1814874)
    - z3fold: fix possible reclaim races

  * Kprobe event argument syntax in ftrace from ubuntu_kernel_selftests failed
    on B PowerPC (LP: #1812809)
    - selftests/ftrace: Add ppc support for kprobe args tests

  * The Realtek card reader does not enter PCIe 1.1/1.2 (LP: #1825487)
    - misc: rtsx: make various functions static
    - misc: rtsx: Enable OCP for rts522a rts524a rts525a rts5260
    - SAUCE: misc: rtsx: Fixed rts5260 power saving parameter and sd glitch

  * headset-mic doesn't work on two Dell laptops. (LP: #1825272)
    - ALSA: hda/realtek - add two more pin configuration sets to quirk table

  * CVE-2018-16884
    - sunrpc: use SVC_NET() in svcauth_gss_* functions
    - sunrpc: use-after-free in svc_process_common()

  * sky2 ethernet card don't work after returning from suspension (LP: #1798921)
    - sky2: Increase D3 delay again

  * CVE-2019-9500
    - brcmfmac: assure SSID length from firmware is limited

  * CVE-2019-9503
    - brcmfmac: add subtype check for event handling in data path

  * CVE-2019-3882
    - vfio/type1: Limit DMA mappings per container

  * Intel I210 Ethernet card not working after hotplug [8086:1533]
    (LP: #1818490)
    - igb: Fix WARN_ONCE on runtime suspend

  * bionic, xenial/hwe: misses "fuse: fix initial parallel dirops" patch
    (LP: #1823972)
    - fuse: fix initial parallel dirops

  * amdgpu resume failure: failed to allocate wb slot (LP: #1825074)
    - drm/amdgpu: fix&cleanups for wb_clear

  * Pop noise when headset is plugged in or removed from GHS/Line-out jack
    (LP: #1821290)
    - ALSA: hda/realtek - Add unplug function into unplug state of Headset Mode
      for ALC225
    - ALSA: hda/realtek - Disable headset Mic VREF for headset mode of ALC225
    - ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO
    - ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB

  * mac80211_hwsim unable to handle kernel NULL pointer dereference
    at0000000000000000  (LP: #1825058)
    - mac80211_hwsim: Timer should be initialized before device registered

  * [regression][snd_hda_codec_realtek] repeating crackling noise after 19.04
    upgrade (LP: #1821663)
    - ALSA: hda: Add Intel NUC7i3BNB to the power_save blacklist
    - ALSA: hda - add Lenovo IdeaCentre B550 to the power_save_blacklist
    - ALSA: hda - Add two more machines to the power_save_blacklist

  * ubuntu_nbd_smoke_test failed on P9 with Bionic kernel (LP: #1822247)
    - nbd: fix how we set bd_invalidated

  * TSC clocksource not available in nested guests (LP: #1822821)
    - kvmclock: fix TSC calibration for nested guests

  * 4.15 kernel ip_vs --ops causes performance and hang problem (LP: #1819786)
    - ipvs: fix refcount usage for conns in ops mode

  * systemd cause kernel trace "BUG: unable to handle kernel paging request at
    6db23a14" on Cosmic i386 (LP: #1813244) // systemd cause kernel trace "BUG:
    unable to handle kernel paging request at 6db23a14" on Cosmic i386
    (LP: #1813244)
    - openvswitch: fix flow actions reallocation

 -- Stefan Bader <stefan.ba...@canonical.com>  Mon, 06 May 2019 18:59:24
+0200

** Changed in: linux (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5753

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5754

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12126

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12127

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-12130

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-16884

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-3620

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-3639

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-3646

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-3874

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-3882

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-9500

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-9503

** Changed in: linux (Ubuntu Cosmic)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-3887

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https://bugs.launchpad.net/bugs/1818490

Title:
  Intel I210 Ethernet card not working after hotplug [8086:1533]

Status in HWE Next:
  Confirmed
Status in OEM Priority Project:
  Triaged
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  Fix Committed
Status in linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in linux source package in Cosmic:
  Fix Released
Status in linux source package in Disco:
  Fix Released

Bug description:
  Summary:
  Intel I210 Ethernet card not working after hotplug

  Steps to reproduce:
  1. Power on system with ethernet cable on Intel I210
  2. Check ethernet is workable
  3. Unplug then plug the ethernet cable

  Expected result:
  Intel I210 Ethernet card is working, e.g. IP address acquired automatically 
if configured as DHCP.

  Actual result:
  Intel I210 Ethernet card not working after hotplug. dmesg has following error 
messages instead:
  [ 16.464321] ------------[ cut here ]------------
  [ 16.464326] PCI PM: State of device not saved by 
igb_runtime_suspend+0x0/0x90 [igb]
  [ 16.464334] WARNING: CPU: 2 PID: 49 at 
/build/linux-oem-ta19Pv/linux-oem-4.15.0/drivers/pci/pci-driver.c:1282 
pci_pm_runtime_suspend+0x175/0x180
  [ 16.464334] Modules linked in: joydev input_leds nls_iso8859_1 
snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic intel_rapl 
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_intel 
irqbypass snd_hda_codec crct10dif_pclmul snd_hda_core crc32_pclmul snd_hwdep 
ghash_clmulni_intel pcbc snd_pcm dell_smm_hwmon aesni_intel aes_x86_64 
snd_seq_midi crypto_simd snd_seq_midi_event glue_helper cryptd snd_rawmidi 
intel_cstate snd_seq intel_rapl_perf dell_wmi snd_seq_device dell_smbios dcdbas 
snd_timer dell_wmi_aio dell_wmi_descriptor intel_wmi_thunderbolt snd 
sparse_keymap wmi_bmof soundcore idma64 virt_dma mei_me intel_lpss_pci 
intel_pch_thermal mei intel_lpss mac_hid acpi_pad sch_fq_codel parport_pc ppdev 
lp parport ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456
  [ 16.464354] async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log 
hid_generic usbhid hid i915 igb drm_kms_helper syscopyarea dca sysfillrect 
i2c_algo_bit e1000e sysimgblt ptp fb_sys_fops pps_core ahci libahci drm wmi 
video
  [ 16.464366] CPU: 2 PID: 49 Comm: kworker/2:1 Not tainted 4.15.0-1032-oem 
#37-Ubuntu
  [ 16.464367] Hardware name: Dell Inc. Precision 3630 Tower/, BIOS 99.2.2 
01/14/2019
  [ 16.464369] Workqueue: pm pm_runtime_work
  [ 16.464370] RIP: 0010:pci_pm_runtime_suspend+0x175/0x180
  [ 16.464371] RSP: 0018:ffffa968c3363d48 EFLAGS: 00010282
  [ 16.464372] RAX: 0000000000000000 RBX: ffff8a2557aee0a0 RCX: 0000000000000006
  [ 16.464372] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff8a257c496490
  [ 16.464373] RBP: ffffa968c3363d70 R08: 0000000000000001 R09: 0000000000000373
  [ 16.464373] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
  [ 16.464373] R13: ffffffffc0481540 R14: ffff8a2557aee000 R15: 0000000000000000
  [ 16.464374] FS: 0000000000000000(0000) GS:ffff8a257c480000(0000) 
knlGS:0000000000000000
  [ 16.464375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 16.464375] CR2: 00007f30b3e93170 CR3: 0000000842c0a004 CR4: 00000000003606e0
  [ 16.464376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  [ 16.464376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  [ 16.464376] Call Trace:
  [ 16.464379] ? pci_pm_runtime_resume+0xb0/0xb0
  [ 16.464380] __rpm_callback+0xca/0x210
  [ 16.464381] ? __switch_to_asm+0x40/0x70
  [ 16.464382] ? __switch_to_asm+0x34/0x70
  [ 16.464382] rpm_callback+0x59/0x80
  [ 16.464383] ? pci_pm_runtime_resume+0xb0/0xb0
  [ 16.464384] rpm_suspend+0x137/0x640
  [ 16.464385] ? __switch_to_asm+0x40/0x70
  [ 16.464386] pm_runtime_work+0x81/0xa0
  [ 16.464388] process_one_work+0x1de/0x410
  [ 16.464389] worker_thread+0x32/0x410
  [ 16.464390] kthread+0x121/0x140
  [ 16.464391] ? process_one_work+0x410/0x410
  [ 16.464392] ? kthread_create_worker_on_cpu+0x70/0x70
  [ 16.464392] ret_from_fork+0x35/0x40
  [ 16.464393] Code: 2b ff ff ff 80 3d 21 c6 11 01 00 0f 85 1e ff ff ff 49 8b 
b5 a0 00 00 00 48 c7 c7 a0 56 b2 ad c6 05 06 c6 11 01 01 e8 0b 74 b9 ff <0f> 0b 
e9 fd fe ff ff 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 53
  [ 16.464408] ---[ end trace 97e5f2cf651b62e6 ]---

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