From: Jann Horn <jannh@google.com>
Date: Wed, 10 Apr 2019 16:56:27 +0000 (-0700)
Subject: LSM: SafeSetID: fix use of literal -1 in capable hook
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e10337daefecb47209fd2af5f4fab0d1a370737f;p=openwrt%2Fstaging%2Fblogic.git

LSM: SafeSetID: fix use of literal -1 in capable hook

The capable() hook returns an error number. -EPERM is actually the same as
-1, so this doesn't make a difference in behavior.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
---

diff --git a/security/safesetid/lsm.c b/security/safesetid/lsm.c
index 22964e2a6187..7760019ad35d 100644
--- a/security/safesetid/lsm.c
+++ b/security/safesetid/lsm.c
@@ -90,7 +90,7 @@ static int safesetid_security_capable(const struct cred *cred,
 	 */
 	pr_warn("Operation requires CAP_SETUID, which is not available to UID %u for operations besides approved set*uid transitions\n",
 		__kuid_val(cred->uid));
-	return -1;
+	return -EPERM;
 }
 
 /*