linux: CONFIG_SERIAL_8250_MID=y
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Kinetic |
Fix Released
|
Undecided
|
Unassigned | ||
Lunar |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
CONFIG_
The generic kernel should build this driver statically to make sure we properly support these platforms.
[Test case]
Boot the Ubuntu generic kernel on a system that is using the "mid" serial driver (e.g, no PCI serial).
[Fix]
Enable CONFIG_
[Regression potential]
Kernel footprint is increased a bit with this change (around +9K), so we may see little performance regressions at boot time in really small platforms (additional memory usage is probably negligible), but it is worth it, otherwise we won't be able to properly support these platforms.
NOTE: we may want to disable this option in the could kernels and derivatives and keep it only for the generic.
[Original bug report]
Starting from 5.19 HWE kernel, this option became as dedicated module instead of being compiled into the kernel.
5.19 hwe-next also has CONFIG_
On 5.15 it was OK
~$ uname -r
5.19.0-32-generic
$ cat /boot/config-
CONFIG_
Please make it CONFIG_
Previous ticket: https:/
Some discussion: https:/
Thanks!
CVE References
description: | updated |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
description: | updated |
Changed in linux (Ubuntu Kinetic): | |
status: | New → Fix Committed |
tags: |
added: verification-done-kinetic removed: verification-needed-kinetic |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2009283
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.