linux-kernel - [PATCH 3/3] selinux: Use an other error code for an input validation failure in sidtab

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Date:   Tue, 4 Apr 2017 13:16:01 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Casey Schaufler <casey@...aufler-ca.com>,
        Eric Paris <eparis@...isplace.org>,
        James Morris <james.l.morris@...cle.com>,
        Paul Moore <paul@...l-moore.com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        William Roberts <william.c.roberts@...el.com>,
        linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/3] selinux: Use an other error code for an input validation
 failure in sidtab_insert()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 4 Apr 2017 12:23:41 +0200

The error code "-ENOMEM" was also returned so far when the parameter "s"
of this function contained a null pointer.
Now I find that the code "-EINVAL" is more appropriate in this case.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 security/selinux/ss/sidtab.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index c5f436b15d19..2eb2a54b88d2 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -36,7 +36,7 @@ int sidtab_insert(struct sidtab *s, u32 sid, struct context *context)
 	struct sidtab_node *prev, *cur, *newnode;
 
 	if (!s)
-		return -ENOMEM;
+		return -EINVAL;
 
 	hvalue = SIDTAB_HASH(sid);
 	prev = NULL;
-- 
2.12.2