Description: Linux kernel POSIX CPU timer UAF
References:
 https://www.openwall.com/lists/oss-security/2022/08/09/7
 https://lore.kernel.org/lkml/20220809170751.164716-1-cascardo@canonical.com/T/#u
Notes:
Bugs:
upstream: needed
5.10-upstream-stable: needed
4.19-upstream-stable: N/A "Vulnerable code introduced later"
sid: released (5.18.16-1) [bugfix/all/posix-cpu-timers-Cleanup-CPU-timers-before-freeing-t.patch]
5.10-bullseye-security: released (5.10.136-1) [bugfix/all/posix-cpu-timers-Cleanup-CPU-timers-before-freeing-t.patch]
4.19-buster-security: N/A "Vulnerable code introduced later"