This change was applied during the Focal development cycle but then
reverted pending performance testing results. That performance testing
work was never finished and I'm no longer working on this bug.
** Changed in: linux (Ubuntu)
Status: Fix Committed => Triaged
** Changed in: linux (Ubuntu)
Assignee: Tyler Hicks (tyhicks) => (unassigned)
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https://bugs.launchpad.net/bugs/1855337
Title:
CONFIG_DEBUG_NOTIFIERS should be enabled
Status in linux package in Ubuntu:
Triaged
Bug description:
We should enable CONFIG_DEBUG_NOTIFIERS to ensure that notifier functions are
present in the core kernel text or module text sections before calling
those functions.
If an invalid function pointer is detected, a warning is issued and
the function is not called. This helps in attack prevention and
detection.
This config option is recommended by the Kernel Self Protection
Project[1].
[1]
https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings
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