tree 09316c8c181a845b3a7dd81d6b831f9ce11f4537
parent 11c236b89d7c26d58c55d5613a858600a4d2ab3a
author John Johansen <john.johansen@canonical.com> 1484556163 -0800
committer John Johansen <john.johansen@canonical.com> 1484558315 -0800

apparmor: provide userspace flag indicating binfmt_elf_mmap change

Commit 9f834ec18def ("binfmt_elf: switch to new creds when switching to new mm")
changed when the creds are installed by the binfmt_elf handler. This
affects which creds are used to mmap the executable into the address
space. Which can have an affect on apparmor policy.

Add a flag to apparmor at
/sys/kernel/security/apparmor/features/domain/fix_binfmt_elf_mmap

to make it possible to detect this semantic change so that the userspace
tools and the regression test suite can correctly deal with the change.

BugLink: http://bugs.launchpad.net/bugs/1630069
Signed-off-by: John Johansen <john.johansen@canonical.com>