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authorJohn Johansen <john.johansen@canonical.com>2020-06-05 18:12:21 -0700
committerJohn Johansen <john.johansen@canonical.com>2020-06-05 18:12:21 -0700
commit5268d795d6888b202ad9f2b16a254cd00d0de77b (patch)
treec221ac7e3a4e95fdb323ddf1e20bada0a3e5daa8
parent2cf002d194977c4ec8848496a9a9804a317099dd (diff)
apparmor: fix introspection of of task mode for unconfined tasks
Fix two issues with introspecting the task mode. 1. If a task is attached to a unconfined profile that is not the ns->unconfined profile then. Mode the mode is always reported as - $ ps -Z LABEL PID TTY TIME CMD unconfined 1287 pts/0 00:00:01 bash test (-) 1892 pts/0 00:00:00 ps instead of the correct value of (unconfined) as shown below $ ps -Z LABEL PID TTY TIME CMD unconfined 2483 pts/0 00:00:01 bash test (unconfined) 3591 pts/0 00:00:00 ps 2. if a task is confined by a stack of profiles that are unconfined the output of label mode is again the incorrect value of (-) like above, instead of (unconfined). This is because the visibile profile count increment is skipped by the special casing of unconfined. Signed-off-by: John Johansen <john.johansen@canonical.com>
-rw-r--r--security/apparmor/label.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 676eebcbfd68..23f7a193df4f 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -1558,13 +1558,13 @@ static const char *label_modename(struct aa_ns *ns, struct aa_label *label,
label_for_each(i, label, profile) {
if (aa_ns_visible(ns, profile->ns, flags & FLAG_VIEW_SUBNS)) {
- if (profile->mode == APPARMOR_UNCONFINED)
+ count++;
+ if (profile == profile->ns->unconfined)
/* special case unconfined so stacks with
* unconfined don't report as mixed. ie.
* profile_foo//&:ns1:unconfined (mixed)
*/
continue;
- count++;
if (mode == -1)
mode = profile->mode;
else if (mode != profile->mode)