[SRU Focal,Jammy,OEM-6.1,Lunar,Mantic 0/1] CVE-2023-5717

[Thadeu Lima de Souza Cascardo]

[Impact]
Users with access to perf (CAP_PERFMON) or unprivileged users on systems
where sysctl kernel.perf_event_paranoid is less than 1 may escalate
privileges.

[Backport]
All clean cherry-picks, but could not apply cleanly (except with --3way),
hence the multiple submissions.

[Potential regressions]
performance monitoring (perf command) may break.

Peter Zijlstra (1):
  perf: Disallow mis-matched inherited group reads

 include/linux/perf_event.h |  1 +
 kernel/events/core.c       | 39 ++++++++++++++++++++++++++++++++------
 2 files changed, 34 insertions(+), 6 deletions(-)

-- 
2.34.1