[PATCH 5.15 032/244] apparmor: fix setting unconfined mode on a loaded profile

Greg Kroah-Hartman
2022-08-23T09:43:24Z

From: John Johansen <john.johansen@canonical.com>

commit 3bbb7b2e9bbcd22e539e23034da753898fe3b4dc upstream.

When loading a profile that is set to unconfined mode, that label
flag is not set when it should be. Ensure it is set so that when
used in a label the unconfined check will be applied correctly.

Fixes: 038165070aa5 ("apparmor: allow setting any profile into the unconfined state")
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
security/apparmor/policy_unpack.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -746,16 +746,18 @@ static struct aa_profile *unpack_profile
profile->label.flags |= FLAG_HAT;
if (!unpack_u32(e, &tmp, NULL))
goto fail;
- if (tmp == PACKED_MODE_COMPLAIN || (e->version & FORCE_COMPLAIN_FLAG))
+ if (tmp == PACKED_MODE_COMPLAIN || (e->version & FORCE_COMPLAIN_FLAG)) {
profile->mode = APPARMOR_COMPLAIN;
- else if (tmp == PACKED_MODE_ENFORCE)
+ } else if (tmp == PACKED_MODE_ENFORCE) {
profile->mode = APPARMOR_ENFORCE;
- else if (tmp == PACKED_MODE_KILL)
+ } else if (tmp == PACKED_MODE_KILL) {
profile->mode = APPARMOR_KILL;
- else if (tmp == PACKED_MODE_UNCONFINED)
+ } else if (tmp == PACKED_MODE_UNCONFINED) {
profile->mode = APPARMOR_UNCONFINED;
- else
+ profile->label.flags |= FLAG_UNCONFINED;
+ } else {
goto fail;
+ }
if (!unpack_u32(e, &tmp, NULL))
goto fail;
if (tmp)