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Date: Fri, 2 Feb 2018 17:56:48 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Mike Rapoport <rppt@...ux.vnet.ibm.com>,
Mimi Zohar <zohar@...ux.vnet.ibm.com>
Subject: [PATCH 4.14 027/156] ima/policy: fix parsing of fsuuid
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mike Rapoport <rppt@...ux.vnet.ibm.com>
commit 36447456e1cca853188505f2a964dbbeacfc7a7a upstream.
The switch to uuid_t invereted the logic of verfication that &entry->fsuuid
is zero during parsing of "fsuuid=" rule. Instead of making sure the
&entry->fsuuid field is not attempted to be overwritten, we bail out for
perfectly correct rule.
Fixes: 787d8c530af7 ("ima/policy: switch to use uuid_t")
Signed-off-by: Mike Rapoport <rppt@...ux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@...ux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
security/integrity/ima/ima_policy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -743,7 +743,7 @@ static int ima_parse_rule(char *rule, st
case Opt_fsuuid:
ima_log_string(ab, "fsuuid", args[0].from);
- if (uuid_is_null(&entry->fsuuid)) {
+ if (!uuid_is_null(&entry->fsuuid)) {
result = -EINVAL;
break;
}
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