apparmor: fix rlimit for posix cpu timers

CVE-2026-46328

What is CVE-2026-46328?

In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix rlimit for posix cpu timers

Posix cpu timers requires an additional step beyond setting the rlimit. Refactor the code so its clear when what code is setting the limit and conditionally update the posix cpu timers when appropriate.

References