[SRU][B/B-OEM/C/D] Fix AMD IOMMU NULL dereference
Bug #1820990 reported by
AaronMa
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned | ||
Disco |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned | ||
Cosmic |
Fix Released
|
Undecided
|
Unassigned | ||
Disco |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
When no acpi hid match the device, there will be a NULL dereference in amd iommu.
It will make system hang.
[Fix]
Check NULL pointer before using it.
[Test]
Tested on several AMD platforms, bugs are fixed with this patch.
[Regression Potential]
Low, upstream fix, Verified on several platforms.
It should be safe.
tags: | added: originate-from-1818010 sutton |
summary: |
- [SRU][B/C/OEM/D] Fix AMD IOMMU NULL dereference + [SRU][B/B-OEM/C/D] Fix AMD IOMMU NULL dereference |
description: | updated |
Changed in linux (Ubuntu): | |
status: | Incomplete → Fix Committed |
Changed in linux (Ubuntu Bionic): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Cosmic): | |
status: | New → Fix Committed |
Changed in linux-oem (Ubuntu Bionic): | |
status: | New → Fix Committed |
Changed in linux-oem (Ubuntu Cosmic): | |
status: | New → Invalid |
Changed in linux-oem (Ubuntu Disco): | |
status: | New → Invalid |
tags: |
added: verification-done-bionic removed: verification-needed-bionic |
tags: |
added: verification-done-cosmic removed: verification-needed-cosmic |
Changed in linux-oem (Ubuntu Cosmic): | |
status: | Invalid → Fix Released |
Changed in linux-oem (Ubuntu Disco): | |
status: | Invalid → Fix Released |
Changed in linux-oem (Ubuntu): | |
status: | Invalid → Fix Released |
Changed in hwe-next: | |
status: | New → Fix Released |
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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 1820990
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.