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/1855339
Title:
CONFIG_LEGACY_PTYS should be disabled
Status in linux package in Ubuntu:
Triaged
Bug description:
Legacy BSD PTYs have been replaced by UNIX 98 PTYs a long time ago.
Disable legacy BSD PTY support as it is no longer needed.
This config option is recommended by the Kernel Self Protection
Project[1] and a 2019 study performed by Capsule 8 shows that it is
enabled in some other major distro kernels[2].
[1]
https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings
[2]
https://capsule8.com/blog/millions-of-binaries-later-a-look-into-linux-hardening-in-the-wild/
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