tree 837376c781b1f13304ba65c78fc989c33b12312a
parent c6c0e52ab3fbe3915066eca7f072ee5977957eb5
author Stephen Smalley <sds@tycho.nsa.gov> 1547049310 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1548227456 +0100

selinux: fix GPF on invalid policy

commit 5b0e7310a2a33c06edc7eb81ffc521af9b2c5610 upstream.

levdatum->level can be NULL if we encounter an error while loading
the policy during sens_read prior to initializing it.  Make sure
sens_destroy handles that case correctly.

Reported-by: syzbot+6664500f0f18f07a5c0e@syzkaller.appspotmail.com
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>