landlock: Document LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS

Document setting no_new_privs with ruleset enforcement, following the
same compatibility section style as previous ABI additions.

Include a section explaining the tradeoffs of setting no_new_privs
through any means for privileged users of Landlock.

Signed-off-by: Justin Suess <utilityemal77@gmail.com>
Link: https://patch.msgid.link/20260809154544.1253100-5-utilityemal77@gmail.com
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Justin Suess 2026-08-09 11:45:22 -04:00 • committed by Mickaël Salaün
commit f2c55c76bd
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