arm64: fix CONFIG_DEBUG_WX address reporting
Bug #1765850 reported by
dann frazier
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Artful |
Fix Released
|
Undecided
|
dann frazier |
Bug Description
[Impact]
The warnings emitted by the kernel when CONFIG_DEBUG_WX is enabled will show an incorrect address, nullifying the value of this config option.
[Test Case]
Boot; if a "arm64/mm: Found insecure W+X mapping at address" message appears, confirm it's not in the userspace mapping.
[Regression Risk]
This is arm64-only code, so regressions would be restricted to arm64. This change is currently present in bionic without any noticed regressions.
CVE References
Changed in linux (Ubuntu Artful): | |
status: | New → In Progress |
assignee: | nobody → dann frazier (dannf) |
Changed in linux (Ubuntu Artful): | |
status: | In Progress → Fix Committed |
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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- artful' to 'verification- done-artful' . If the problem still exists, change the tag 'verification- needed- artful' to 'verification- failed- artful' .
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.
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