linux-kernel - [PATCH v6 03/10] audit: no need to walk list in audit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <1347017027-17167-4-git-send-email-jlayton@redhat.com>
Date:	Fri,  7 Sep 2012 07:23:40 -0400
From:	Jeff Layton <jlayton@...hat.com>
To:	eparis@...hat.com, viro@...iv.linux.org.uk
Cc:	linux-audit@...hat.com, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, bfields@...ldses.org
Subject: [PATCH v6 03/10] audit: no need to walk list in audit_inode if name is NULL

If name is NULL then the condition in the loop will never be true. Also,
with this change, we can eliminate the check for n->name == NULL since
the equivalence check will never be true if it is.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 kernel/auditsc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 5c45b9b..4099440 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -2161,11 +2161,15 @@ void __audit_inode(const char *name, const struct dentry *dentry)
 	if (!context->in_syscall)
 		return;
 
+	if (!name)
+		goto out_alloc;
+
 	list_for_each_entry_reverse(n, &context->names_list, list) {
-		if (n->name && (n->name == name))
+		if (n->name == name)
 			goto out;
 	}
 
+out_alloc:
 	/* unable to find the name from a previous getname() */
 	n = audit_alloc_name(context);
 	if (!n)
-- 
1.7.11.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/