Ubuntu
linux-hwe-5.11 package

linux-azure: Fix NUMA node assignment when kernel boots with custom NUMA topology

  1. Focal (20.04)
  2. Bug #1961300
Bug #1961300 reported by Tim Gardner
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-azure (Ubuntu)
Fix Released
Medium
Tim Gardner
Focal
Fix Released
Medium
Tim Gardner
Impish
Fix Released
Medium
Tim Gardner
Jammy
Fix Released
Medium
Tim Gardner
linux-hwe-5.11 (Ubuntu)
Invalid
Undecided
Unassigned
Focal
In Progress
Medium
Tim Gardner
Impish
Invalid
Undecided
Unassigned
Jammy
Invalid
Undecided
Unassigned

Bug Description

SRU Justification

[Impact]

When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.

This patch also fixes the case where kernel is booting with "numa=off".

Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and support PCI_BUS_RELATIONS2")

[Test Case]

Microsoft tested.

[Where things could go wrong]

NUMA node assignments could be wrong.

[Other Info]

SF: #00323281

CVE References

Tim Gardner (timg-tpi)
affects: linux (Ubuntu) → linux-azure (Ubuntu)
Changed in linux-azure (Ubuntu):
assignee: nobody → Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Jammy):
status: New → Fix Committed
Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Impish):
status: New → In Progress
assignee: nobody → Tim Gardner (timg-tpi)
Changed in linux-hwe-5.11 (Ubuntu Impish):
status: New → Invalid
Changed in linux-hwe-5.11 (Ubuntu Jammy):
status: New → Invalid
Changed in linux-hwe-5.11 (Ubuntu Focal):
status: New → In Progress
assignee: nobody → Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Focal):
status: New → In Progress
assignee: nobody → Tim Gardner (timg-tpi)
importance: Undecided → Medium
Changed in linux-azure (Ubuntu Impish):
importance: Undecided → Medium
Changed in linux-azure (Ubuntu Jammy):
importance: Undecided → Medium
Changed in linux-hwe-5.11 (Ubuntu Focal):
importance: Undecided → Medium
Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Focal):
status: In Progress → Fix Committed
Changed in linux-azure (Ubuntu Impish):
status: In Progress → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-azure/5.13.0-1018.20 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-impish' to 'verification-done-impish'. If the problem still exists, change the tag 'verification-needed-impish' to 'verification-failed-impish'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-impish
Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Focal):
status: Fix Committed → In Progress
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-azure-5.13/5.13.0-1019.21~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-focal
Tim Gardner (timg-tpi)
tags: added: verification-done-focal verification-done-impish
removed: verification-needed-focal verification-needed-impish
Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Focal):
status: In Progress → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-azure - 5.13.0-1021.24

---------------
linux-azure (5.13.0-1021.24) impish; urgency=medium

  * impish/linux-azure: 5.13.0-1021.24 -proposed tracker (LP: #1966226)

  [ Ubuntu: 5.13.0-39.44 ]

  * impish/linux: 5.13.0-39.44 -proposed tracker (LP: #1966236)
  * CVE-2022-27666
    - sock: remove one redundant SKB_FRAG_PAGE_ORDER macro
    - esp: Fix possible buffer overflow in ESP transformation
  * CVE-2022-1055
    - net: sched: fix use-after-free in tc_new_tfilter()

 -- Ian May <email address hidden> Mon, 28 Mar 2022 15:40:30 -0500

Changed in linux-azure (Ubuntu Impish):
status: Fix Committed → Fix Released
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-azure-5.4/5.4.0-1076.79~18.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-bionic
Tim Gardner (timg-tpi)
tags: added: verification-done-bionic
removed: verification-needed-bionic
Tim Gardner (timg-tpi)
Changed in linux-azure (Ubuntu Focal):
status: Fix Committed → Fix Released
Changed in linux-azure (Ubuntu Jammy):
status: Fix Committed → Fix Released
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