This bug was fixed in the package linux - 4.15.0-39.42

---------------
linux (4.15.0-39.42) bionic; urgency=medium

  * linux: 4.15.0-39.42 -proposed tracker (LP: #1799411)

  * Linux: insufficient shootdown for paging-structure caches (LP: #1798897)
    - mm: move tlb_table_flush to tlb_flush_mmu_free
    - mm/tlb: Remove tlb_remove_table() non-concurrent condition
    - mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE
    - [Config] CONFIG_HAVE_RCU_TABLE_INVALIDATE=y

  * Ubuntu18.04: GPU total memory is reduced (LP: #1792102)
    - Revert "powerpc/powernv: Increase memory block size to 1GB on radix"

  * arm64: snapdragon: reduce boot noise (LP: #1797154)
    - [Config] arm64: snapdragon: DRM_MSM=m
    - [Config] arm64: snapdragon: SND*=m
    - [Config] arm64: snapdragon: disable ARM_SDE_INTERFACE
    - [Config] arm64: snapdragon: disable DRM_I2C_ADV7511_CEC
    - [Config] arm64: snapdragon: disable VIDEO_ADV7511, VIDEO_COBALT

  * [Bionic] CPPC bug fixes (LP: #1796949)
    - ACPI / CPPC: Update all pr_(debug/err) messages to log the susbspace id
    - cpufreq: CPPC: Don't set transition_latency
    - ACPI / CPPC: Fix invalid PCC channel status errors

  * regression in 'ip --family bridge neigh' since linux v4.12 (LP: #1796748)
    - rtnetlink: fix rtnl_fdb_dump() for ndmsg header

  * screen displays abnormally on the lenovo M715 with the AMD GPU (Radeon Vega
    8 Mobile, rev ca, 1002:15dd) (LP: #1796786)
    - drm/amd/display: Fix takover from VGA mode
    - drm/amd/display: early return if not in vga mode in disable_vga
    - drm/amd/display: Refine disable VGA

  * arm64: snapdragon: WARNING: CPU: 0 PID: 1 arch/arm64/kernel/setup.c:271
    reserve_memblock_reserved_regions (LP: #1797139)
    - SAUCE: arm64: Fix /proc/iomem for reserved but not memory regions

  * The front MIC can't work on the Lenovo M715 (LP: #1797292)
    - ALSA: hda/realtek - Fix the problem of the front MIC on the Lenovo M715

  * Keyboard backlight sysfs sometimes is missing on Dell laptops (LP: #1797304)
    - platform/x86: dell-smbios: Correct some style warnings
    - platform/x86: dell-smbios: Rename dell-smbios source to dell-smbios-base
    - platform/x86: dell-smbios: Link all dell-smbios-* modules together
    - [Config] CONFIG_DELL_SMBIOS_SMM=y, CONFIG_DELL_SMBIOS_WMI=y

  * rpi3b+: ethernet not working (LP: #1797406)
    - lan78xx: Don't reset the interface on open

  * 87cdf3148b11 was never backported to 4.15  (LP: #1795653)
    - xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto

  * [Ubuntu18.04][Power9][DD2.2]package installation segfaults inside debian
    chroot env in P9 KVM guest with HTM enabled (kvm) (LP: #1792501)
    - KVM: PPC: Book3S HV: Fix guest r11 corruption with POWER9 TM workarounds

  * Provide mode where all vCPUs on a core must be the same VM (LP: #1792957)
    - KVM: PPC: Book3S HV: Provide mode where all vCPUs on a core must be the 
same
      VM

  * fscache: bad refcounting in fscache_op_complete leads to OOPS (LP: #1797314)
    - SAUCE: fscache: Fix race in decrementing refcount of op->npages

  * CVE-2018-9363
    - Bluetooth: hidp: buffer overflow in hidp_process_report

  * CVE-2017-13168
    - scsi: sg: mitigate read/write abuse

  * [Bionic] ACPI / PPTT: use ACPI ID whenever ACPI_PPTT_ACPI_PROCESSOR_ID_VALID
    is set (LP: #1797200)
    - ACPI / PPTT: use ACPI ID whenever ACPI_PPTT_ACPI_PROCESSOR_ID_VALID is set

  * [Bionic] arm64: topology: Avoid checking numa mask for scheduler MC
    selection (LP: #1797202)
    - arm64: topology: Avoid checking numa mask for scheduler MC selection

  * crypto/vmx - Backport of Fix sleep-in-atomic bugs patch for 18.04
    (LP: #1790832)
    - crypto: vmx - Fix sleep-in-atomic bugs

  * hns3: autoneg settings get lost on down/up (LP: #1797654)
    - net: hns3: Fix for information of phydev lost problem when down/up

  * not able to unwind the stack from within __kernel_clock_gettime in the Linux
    vDSO (LP: #1797963)
    - powerpc/vdso: Correct call frame information

  * Signal 7 error when running GPFS tracing in cluster (LP: #1792195)
    - powerpc/mm/books3s: Add new pte bit to mark pte temporarily invalid.
    - powerpc/mm/radix: Only need the Nest MMU workaround for R -> RW transition

  * Support Edge Gateway's WIFI LED (LP: #1798330)
    - SAUCE: mwifiex: Switch WiFi LED state according to the device status

  * Support Edge Gateway's Bluetooth LED (LP: #1798332)
    - SAUCE: Bluetooth: Support for LED on Edge Gateways

  * USB cardreader (0bda:0328) make the system can't enter s3 or hang
    (LP: #1798328)
    - usb: Don't disable Latency tolerance Messaging (LTM) before port reset

  * CVE-2018-15471
    - xen-netback: fix input validation in xenvif_set_hash_mapping()

  * CVE-2018-16658
    - cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status

  * [Bionic] Update ThunderX2 implementation defined pmu core events
    (LP: #1796904)
    - perf vendor events arm64: Update ThunderX2 implementation defined pmu core
      events

  * the machine of lenovo M715 with the AMD GPU (Radeon Vega 8 Mobile, rev ca,
    1002:15dd) often hangs randomly (LP: #1796789)
    - drm/amd: Add missing fields in atom_integrated_system_info_v1_11

  * [18.04] GLK hang after a while (LP: #1760545)
    - drm/i915/glk: Add MODULE_FIRMWARE for Geminilake

  * Fix usbcore.quirks when used at boot (LP: #1795784)
    - usb: core: safely deal with the dynamic quirk lists

 -- Kleber Sacilotto de Souza <kleber.so...@canonical.com>  Tue, 23 Oct
2018 14:44:55 +0000

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

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-13168

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-15471

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-16658

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-9363

-- 
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https://bugs.launchpad.net/bugs/1797406

Title:
  rpi3b+: ethernet not working

Status in linux package in Ubuntu:
  Incomplete
Status in linux-raspi2 package in Ubuntu:
  New
Status in linux source package in Bionic:
  Fix Released
Status in linux-raspi2 source package in Bionic:
  Fix Released

Bug description:
  Impact:

  Since the release of Ubuntu-raspi2_4.15.0-1022.24, the ethernet port
  of the RaspberryPi 3B+ has stopped to work: no phy interrupts are
  generated when a cable is inserted, so it's like the ethernet port is
  always disconnected.

  The problem lies in commit 72eff2505735 ("lan78xx: Connect phy
  early"), that was backported into Bionic/master (and then percolated
  down into Bionic/raspi2):

  "    Commit 92571a1aae40 ("lan78xx: Connect phy early") moves the PHY
      initialisation into lan78xx_probe, but lan78xx_open subsequently calls
      lan78xx_reset. As well as forcing a second round of link negotiation,
      this reset frequently prevents the phy interrupt from being generated
      (even though the link is up), rendering the interface unusable.
      
      Fix this issue by removing the lan78xx_reset call from lan78xx_open.
  "

  Fix:

  Apply the attached patch and recompile

  How to test:

  Boot a patched kernel and checks if the ethernet port is working

  Regression potential:

  None, the attached patch is a fix for the aforementioned patch, and
  fixes exactly this issue - it's upstream already and was backported
  into gregkh's stable branches 4.17+.

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