Ubuntu
linux package

Update fix for LP: #1936708

Bug #1942972 reported by Kai-Heng Feng
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
Medium
Unassigned
Focal
Won't Fix
Undecided
Unassigned
Hirsute
Invalid
Medium
Unassigned
Impish
Fix Released
Medium
Unassigned
linux-oem-5.13 (Ubuntu)
Invalid
Undecided
Unassigned
Focal
Fix Released
Undecided
Unassigned
Hirsute
Invalid
Undecided
Unassigned
Impish
Invalid
Undecided
Unassigned
linux-oem-5.14 (Ubuntu)
Invalid
Undecided
Unassigned
Focal
Fix Released
Undecided
Unassigned
Hirsute
Invalid
Undecided
Unassigned
Impish
Invalid
Undecided
Unassigned

Bug Description

[Impact]
There's a new fix for LP: #1936708, and it's more reliable than the
old approach. So replace it.

[Fix]
Use eDP as predicate to enable max params.

[Test]
Users confirmed the fix can resolve their issue.

[Where problems could occur]
This patch reverts to the old behavior, which is to use max parameters,
for older panels. If there's any new panel reports with older eDP
version, this might change the behavior on it.

CVE References

Kai-Heng Feng (kaihengfeng)
Changed in linux-oem-5.13 (Ubuntu Impish):
status: New → Invalid
Changed in linux (Ubuntu Focal):
status: New → Won't Fix
Changed in linux (Ubuntu Impish):
status: New → Confirmed
Changed in linux-oem-5.13 (Ubuntu Focal):
status: New → Confirmed
Changed in linux-oem-5.14 (Ubuntu Focal):
status: New → Confirmed
Changed in linux-oem-5.14 (Ubuntu Impish):
status: New → Invalid
Changed in linux (Ubuntu Hirsute):
status: New → Confirmed
Changed in linux-oem-5.13 (Ubuntu Hirsute):
status: New → Invalid
Changed in linux-oem-5.14 (Ubuntu Hirsute):
status: New → Invalid
Timo Aaltonen (tjaalton)
Changed in linux-oem-5.13 (Ubuntu Focal):
status: Confirmed → Fix Committed
Changed in linux-oem-5.14 (Ubuntu Focal):
status: Confirmed → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the 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
Kleber Sacilotto de Souza (kleber-souza)
Changed in linux (Ubuntu Hirsute):
status: Confirmed → In Progress
Changed in linux (Ubuntu Impish):
status: Confirmed → In Progress
Stefan Bader (smb)
Changed in linux (Ubuntu Hirsute):
importance: Undecided → Medium
Changed in linux (Ubuntu Impish):
importance: Undecided → Medium
Revision history for this message
Stefan Bader (smb) wrote :

This does not apply to hirsute:linux because we did not pick up the initial SAUCE patch. For tracking I am adjusting the fixup to refer to the original bug #1936708 for the distro kernel.

Changed in linux (Ubuntu Hirsute):
status: In Progress → Invalid
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux-oem-5.13 - 5.13.0-1014.18

---------------
linux-oem-5.13 (5.13.0-1014.18) focal; urgency=medium

  * focal/linux-oem-5.13: 5.13.0-1014.18 -proposed tracker (LP: #1944429)

  * CVE-2021-40490
    - ext4: fix race writing to an inline_data file while its xattrs are changing

  * CVE-2021-41073
    - io_uring: ensure symmetry in handling iter types in loop_rw_iter()

 -- Timo Aaltonen <email address hidden> Wed, 22 Sep 2021 18:34:24 +0300

Changed in linux-oem-5.13 (Ubuntu Focal):
status: Fix Committed → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 5.13.0-19.19

---------------
linux (5.13.0-19.19) impish; urgency=medium

  * impish/linux: 5.13.0-19.19 -proposed tracker (LP: #1946337)

  * impish:linux-aws 5.13 panic during systemd autotest (LP: #1946001)
    - [Config] disable KFENCE

 -- Andrea Righi <email address hidden> Thu, 07 Oct 2021 11:09:51 +0200

Changed in linux (Ubuntu Impish):
status: In Progress → Fix Released
Timo Aaltonen (tjaalton)
Changed in linux-oem-5.14 (Ubuntu Focal):
status: Fix Committed → Fix Released
Anthony Wong (anthonywong)
tags: added: verification-done-focal
removed: verification-needed-focal
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