bionic/linux: 4.15.0-76.86 -proposed tracker

[Marcelo Cerri]

This bug will contain status and test results related to a kernel source (or snap) as stated in the title.

For an explanation of the tasks and the associated workflow see:
  https://wiki.ubuntu.com/Kernel/kernel-sru-workflow

-- swm properties --
boot-testing-requested: true
bugs-spammed: true
packages:
  lrm: linux-restricted-modules
  main: linux
  meta: linux-meta
  signed: linux-signed
phase: Complete
phase-changed: Tuesday, 28. January 2020 13:37 UTC
proposed-announcement-sent: true
proposed-testing-requested: true
trackers:
  bionic/linux-aws: bug 1859795
  bionic/linux-ibm-gt: bug 1860788
  bionic/linux-oem: bug 1862012
  bionic/linux-raspi2: bug 1859700
  bionic/linux-snapdragon: bug 1859793
  bionic/linux/pc-kernel: bug 1860120
  bionic/linux/pc-lowlatency-kernel: bug 1860121
  xenial/linux-azure: bug 1862355
  xenial/linux-hwe: bug 1860122
variant: debs

[Devices Certification Bot (ce-certification-qa)]

Kernel deb testing completes, no regressions found. Ready for Updates. Results here: https://trello.com/c/UmsKJ8H5/280-bionic-linux-image-4150-76-generic-4150-7686

[Marcelo Cerri (mhcerri)]

At the moment we can't fix/hint that the network-manager MISS in our ADT testing. The problem is that a new version of network-manager was published to updates and later reverted. That caused our automation to still expect tests with that version. I'm flipping the ADT task manually because of that.

[Khaled El Mously (kmously)]

Only 2 bugs remain unverified for this kernel:

1858815 PAN is broken for execute-only user mappings on ARMv8
1859522 use-after-free in i915_ppgtt_close

The first isn't easily verifiable and should just be ensured to not cause any regressions.
The second issue is unverifiable unless the kernel is rebuilt - so should have no risk on the kernel itself as it is.

After discussing with Tyler Hicks about the risks of those bugs, they are deemed non-risky to release unverified.

Manually setting the status of verification-testing to "Fix released"

[Sean Feole (sfeole)]

Refer to https://bugs.launchpad.net/ubuntu-kernel-tests/+bugs?field.tag=sru-20191202

For existing bugs

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-76.86

---------------
linux (4.15.0-76.86) bionic; urgency=medium

  * bionic/linux: 4.15.0-76.86 -proposed tracker (LP: #1860123)

  * Integrate Intel SGX driver into linux-azure (LP: #1844245)
    - [Packaging] Add systemd service to load intel_sgx

  * [Regression] Bionic kernel 4.15.0-71.80 can not boot on ThunderX
    (LP: #1853326) // Bionic kernel panic on Cavium ThunderX CN88XX
    (LP: #1853485) // Cavium ThunderX CN88XX crashes on boot (LP: #1857074)
    - arm64: Check for errata before evaluating cpu features
    - arm64: add sentinel to kpti_safe_list

linux (4.15.0-75.85) bionic; urgency=medium

  * bionic/linux: 4.15.0-75.85 -proposed tracker (LP: #1859705)

  * use-after-free in i915_ppgtt_close (LP: #1859522) // CVE-2020-7053
    - SAUCE: drm/i915: Fix use-after-free when destroying GEM context

  * CVE-2019-14615
    - drm/i915/gen9: Clear residual context state on context switch

  * PAN is broken for execute-only user mappings on ARMv8 (LP: #1858815)
    - arm64: Revert support for execute-only user mappings

  * [Regression] usb usb2-port2: Cannot enable. Maybe the USB cable is bad?
    (LP: #1856608)
    - SAUCE: Revert "usb: handle warm-reset port requests on hub resume"

  * Miscellaneous Ubuntu changes
    - update dkms package versions

 -- Marcelo Henrique Cerri <email address hidden> Fri, 17 Jan 2020 10:59:22 -0300

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

All tasks have been completed and the bug is being set to Fix Released