Da5hes··on Escaping Docker container using waitid() – CVE-2017-5123you are right, i actually didn't check on git, my bad
Da5hes··on Escaping Docker container using waitid() – CVE-2017-5123it is the use of unsafe_put_user without access_ok(), not access_ok() alone
Da5hes··on Escaping Docker container using waitid() – CVE-2017-5123it was introduced by this commmit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...which by itself is in a 4.12 vanilla code tree
Da5hes··on Escaping Docker container using waitid() – CVE-2017-5123that's correct, versions prior to 4.12 are not affected