Commit 89677197 authored by Stefan Berger's avatar Stefan Berger Committed by Mimi Zohar
Browse files

ima: Do not print policy rule with inactive LSM labels 



Before printing a policy rule scan for inactive LSM labels in the policy
rule. Inactive LSM labels are identified by args_p != NULL and
rule == NULL.

Fixes: 483ec26e ("ima: ima/lsm policy rule loading logic bug fixes")
Signed-off-by: default avatarStefan Berger <stefanb@linux.ibm.com>
Cc: <stable@vger.kernel.org> # v5.6+
Acked-by: default avatarChristian Brauner <brauner@kernel.org>
[zohar@linux.ibm.com: Updated "Fixes" tag]
Signed-off-by: default avatarMimi Zohar <zohar@linux.ibm.com>
parent bb8e52e4

security/integrity/ima/ima_policy.c

+8 −0
Original line number Diff line number Diff line
@@ -1967,6 +1967,14 @@ int ima_policy_show(struct seq_file *m, void *v) 


	rcu_read_lock();



	/* Do not print rules with inactive LSM labels */

	for (i = 0; i < MAX_LSM_RULES; i++) {

		if (entry->lsm[i].args_p && !entry->lsm[i].rule) {

			rcu_read_unlock();

			return 0;

		}

	}



	if (entry->action & MEASURE)

		seq_puts(m, pt(Opt_measure));

	if (entry->action & DONT_MEASURE)