selinux: skip bounded transition processing if the policy isn't loaded
authorPaul Moore <paul@paul-moore.com>
Tue, 5 Dec 2017 22:17:43 +0000 (17:17 -0500)
committerPaul Moore <paul@paul-moore.com>
Tue, 5 Dec 2017 22:17:43 +0000 (17:17 -0500)
commit4b14752ec4e0d87126e636384cf37c8dd9df157c
tree9811c34d3e0d68b05f87e4069e911bee1ba32ce2
parentef28df55ac27e1e5cd122e19fa311d886d47a756
selinux: skip bounded transition processing if the policy isn't loaded

We can't do anything reasonable in security_bounded_transition() if we
don't have a policy loaded, and in fact we could run into problems
with some of the code inside expecting a policy.  Fix these problems
like we do many others in security/selinux/ss/services.c by checking
to see if the policy is loaded (ss_initialized) and returning quickly
if it isn't.

Reported-by: syzbot <syzkaller-bugs@googlegroups.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: James Morris <james.l.morris@oracle.com>
security/selinux/ss/services.c