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* [PATCH v2] ima: fix wrong signed policy requirement when not appraising
@ 2019-05-15  6:18 Petr Vorel
  0 siblings, 0 replies; 1+ messages in thread
From: Petr Vorel @ 2019-05-15  6:18 UTC (permalink / raw)
  To: linux-integrity; +Cc: Petr Vorel, Mimi Zohar, Nayna Jain, Mimi Zohar

Kernel booted just with ima_policy=tcb (not with
ima_policy=appraise_tcb) shouldn't require signed policy.

Regression found with LTP test ima_policy.sh.

Fixes: c52657d93b05 ("ima: refactor ima_init_policy()")

Suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Changelog v1->v2:
* Use POLICY_CHECK instead of ima_use_appraise_tcb.
Thanks Mimi for obvious hint :).

Kind regards,
Petr

 security/integrity/ima/ima_policy.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index e0cc323f948f..0f6fe53cef09 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -498,10 +498,11 @@ static void add_rules(struct ima_rule_entry *entries, int count,
 
 			list_add_tail(&entry->list, &ima_policy_rules);
 		}
-		if (entries[i].action == APPRAISE)
+		if (entries[i].action == APPRAISE) {
 			temp_ima_appraise |= ima_appraise_flag(entries[i].func);
-		if (entries[i].func == POLICY_CHECK)
-			temp_ima_appraise |= IMA_APPRAISE_POLICY;
+			if (entries[i].func == POLICY_CHECK)
+				temp_ima_appraise |= IMA_APPRAISE_POLICY;
+		}
 	}
 }
 
-- 
2.16.4


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2019-05-15  6:18 [PATCH v2] ima: fix wrong signed policy requirement when not appraising Petr Vorel

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