An recursive locking in igb and igc drivers
Bug #1926564 reported by
AceLan Kao
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Critical
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
AceLan Kao | ||
Hirsute |
Won't Fix
|
Undecided
|
AceLan Kao | ||
Impish |
Won't Fix
|
Undecided
|
AceLan Kao | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
AceLan Kao |
Bug Description
[Impact]
The rtnl_lock() has been called in rtnetlink_
__dev_open() it calls pm_runtime_resume() to resume devices, and in
some devices' resume function(
again. That leads to a recursive lock.
This issue is introduced by below commit since v5.9-rc1
bd869245a3dc net: core: try to runtime-resume detached device in __dev_open
[Fix]
This commit currently is still under discussion fixes the issue.
https:/
[Test]
Verified on Dell Precision workstations.
[Where problems could occur]
The patch is pretty straightforward, no problems could occur by this change.
CVE References
no longer affects: | linux (Ubuntu Focal) |
no longer affects: | linux-oem-5.10 (Ubuntu Hirsute) |
no longer affects: | linux-oem-5.10 (Ubuntu Impish) |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux (Ubuntu Hirsute): | |
status: | New → In Progress |
Changed in linux (Ubuntu Impish): | |
status: | New → In Progress |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → In Progress |
Changed in linux (Ubuntu Hirsute): | |
assignee: | nobody → AceLan Kao (acelankao) |
Changed in linux (Ubuntu Impish): | |
assignee: | nobody → AceLan Kao (acelankao) |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
assignee: | nobody → AceLan Kao (acelankao) |
description: | updated |
tags: | added: oem-priority originate-from-1924661 somerville |
tags: | added: originate-from-1916870 |
tags: | added: originate-from-1917841 |
description: | updated |
description: | updated |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in linux (Ubuntu): | |
status: | Incomplete → Fix Released |
Changed in hwe-next: | |
status: | Incomplete → Fix Released |
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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!