focal/linux-hwe-5.8: 5.8.0-51.57~20.04.1 -proposed tracker

[Kleber Sacilotto de Souza]

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
built:
  lrg: build#1
  lrm: build#1
  lrs: build#1
  main: build#1
  meta: build#1
  signed: build#1
kernel-stable-master-bug: 1923754
packages:
  lrg: linux-restricted-generate-hwe-5.8
  lrm: linux-restricted-modules-hwe-5.8
  lrs: linux-restricted-signatures-hwe-5.8
  main: linux-hwe-5.8
  meta: linux-meta-hwe-5.8
  signed: linux-signed-hwe-5.8
phase: Testing
phase-changed: Saturday, 24. April 2021 03:41 UTC
promote:
- signed
- lrm
- lrs
- main
- meta
proposed-announcement-sent: true
proposed-testing-requested: true
reason:
  regression-testing: Stalled -- testing FAILED
  security-signoff: Stalled -- waiting for signoff
synthetic:
  :promote-to-as-proposed: Fix Released
variant: debs
versions:
  lrm: 5.8.0-51.57~20.04.1+1
  main: 5.8.0-51.57~20.04.1
  meta: 5.8.0.51.57~20.04.35
  signed: 5.8.0-51.57~20.04.1
  source: 5.8.0-51.57~20.04.1

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

Kernel deb testing completes, no regressions found. Ready for Updates. Results here: https://trello.com/c/Ffvxq0VD/1802-focal-hwe-linux-image-580-51-generic-580-515720041

[Kleber Sacilotto de Souza (kleber-souza)]

Marking regression-testing as incomplete as the following regression has been reported:

bug 1925290 - hangup01 from pty in ubuntu_ltp_stable failed on G-5.8

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-hwe-5.8 - 5.8.0-53.60~20.04.1

---------------
linux-hwe-5.8 (5.8.0-53.60~20.04.1) focal; urgency=medium

  [ Ubuntu: 5.8.0-53.60 ]

  * CVE-2021-3491
    - io_uring: fix provide_buffers sign extension
    - io_uring: fix overflows checks in provide buffers
    - SAUCE: proc: Avoid mixing integer types in mem_rw()
    - SAUCE: io_uring: truncate lengths larger than MAX_RW_COUNT on provide
      buffers
  * CVE-2021-3490
    - bpf: Fix a verifier failure with xor
    - SAUCE: bpf: verifier: fix ALU32 bounds tracking with bitwise ops
  * CVE-2021-3489
    - SAUCE: bpf: ringbuf: deny reserve of buffers larger than ringbuf
    - SAUCE: bpf: prevent writable memory-mapping of read-only ringbuf pages

 -- Stefan Bader <email address hidden> Thu, 06 May 2021 11:28:58 +0200