Public bug reported:
[Impact]
Coverity scanning discovered a potential NULL dereference in this driver.
Though I'm unaware of anyone hitting it in practice, it is an obvious bug.
[Test Case]
There is no known reproducer for this, so it can only be regression tested.
[Regression Risk]
The fix is localized to a driver and is a clean cherry pick from upstream.
The bug fix looks straightforward - don't dereference the pointer if it is
NULL. The only regression theory I have would be if this means that, instead of
crashing, we now execute code that is *worse* than crashing (e.g. resulting in
corruption, etc).
** Affects: linux (Ubuntu)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
** Affects: linux (Ubuntu Zesty)
Importance: Medium
Assignee: dann frazier (dannf)
Status: In Progress
** Also affects: linux (Ubuntu Zesty)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Zesty)
Status: New => Confirmed
** Changed in: linux (Ubuntu Zesty)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Zesty)
Assignee: (unassigned) => dann frazier (dannf)
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https://bugs.launchpad.net/bugs/1708714
Title:
scsi: hisi_sas: add null check before indirect pointer dereference
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