Description: rbd: require global CAP_SYS_ADMIN for mapping and unmapping
References:
 https://twitter.com/grsecurity/status/1304537507560919041
Notes:
Bugs:
upstream: pending [f44d04e696feaf13d192d942c4f14ad2e117065a]
4.19-upstream-stable:
4.9-upstream-stable:
sid:
4.19-buster-security:
4.9-stretch-security: