Public bug reported:
[Impact]
We are seeing a null kernel dereference on kernfs during system sleep
stress.
[Fix]
Make sure kernfs root is not null.
[Test]
Run sleep stress. Not seeing the issue after the fix is applied.
[Regression Potential]
Low. Fix limits to kernfs, also the it has been in upstream kernel for
quite a while.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: Incomplete
** Tags: busan oem-priority originate-from-1865972
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Tags added: busan oem-priority originate-from-1865972
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https://bugs.launchpad.net/bugs/1874221
Title:
Fix potential null pointer dereference on kernfs
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