[SRU][H/OEM-5.10/OEM-5.13/U] Fix system hang after unplug tbt dock
Bug #1938689 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 | ||
Hirsute |
Fix Released
|
Undecided
|
Unassigned | ||
Impish |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem-5.13 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
SRU justification:
[Impact]
System hang after unplug thunderbolt dock with Intel igc lan.
[Fix]
igc driver continue reading and writing MMIO address after PCI device is unplugged.
This cause system page fault, and system hang.
Add safe check and prevent reading and writing the MMIO.
The patch is in maintainer's tree, but not merged to Linus's tree.
Due to the schedule, send SRU as SAUCE patch.
[Test]
Verified on hardware, after unplug the thunderbolt cable,
system work fine.
[Where problems could occur]
It may break the igc driver.
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) |
no longer affects: | linux-oem-5.13 (Ubuntu Hirsute) |
no longer affects: | linux-oem-5.13 (Ubuntu Impish) |
tags: | added: oem-priority originate-from-1932115 sutton |
tags: | added: originate-from-1931982 |
Changed in linux (Ubuntu Hirsute): | |
status: | New → Fix Committed |
Changed in linux-oem-5.13 (Ubuntu Focal): | |
status: | New → Fix Committed |
Changed in linux-oem-5.13 (Ubuntu): | |
status: | New → Invalid |
tags: |
added: verification-done-hirsute removed: verification-needed-hirsute |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in hwe-next: | |
status: | New → Fix Released |
no longer affects: | linux-oem-5.10 (Ubuntu) |
no longer affects: | linux-oem-5.10 (Ubuntu Focal) |
To post a comment you must log in.
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- hirsute' to 'verification- done-hirsute' . If the problem still exists, change the tag 'verification- needed- hirsute' to 'verification- failed- hirsute' .
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!