[linux-oem] Fix out of bound VBT pin on CNP
Bug #1746411 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
OEM Priority Project |
Confirmed
|
High
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Xenial |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem (Ubuntu) |
Invalid
|
Undecided
|
Kai-Heng Feng | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
=== SRU Justification ===
[Impact]
i915 crashed when probing for VBT pin. No graphics output after that.
[Test Case]
Enable Legacy ROM boot option in BIOS. Screen goes blank.
Cherrypick fixes can solve the issue.
[Fix]
Handle out of bounds pin value more appropriately.
Patches from Jani are most refactoring, but the fix we want depends on
them.
Patches from Rogrigo are the fixes we want. These patches are also
picked base on his suggestion,
https:/
[Regression Potential]
Low. CNL and CNP are still quite new. These commits are limited to them.
CVE References
tags: | added: originate-from-1729230 somerville |
affects: | linux (Ubuntu) → linux-oem (Ubuntu) |
Changed in linux-oem (Ubuntu): | |
status: | Incomplete → Invalid |
tags: | added: originate-from-1743937 |
tags: | added: originate-from-1738973 |
Changed in linux-oem (Ubuntu Xenial): | |
status: | New → Fix Committed |
Changed in oem-priority: | |
status: | New → Confirmed |
importance: | Undecided → High |
tags: | added: hwe oem-priority |
Changed in linux (Ubuntu): | |
status: | Incomplete → 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 1746411
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.