dlm: don't allow zero length names

kobject doesn't like zero length object names, so let's test for that. Signed-off-by: Tycho Andersen <tycho@tycho.ws> Signed-off-by: David Teigland <teigland@redhat.com>
mariux64 · Nov 7, 2018 · 3f0806d · 3f0806d
1 parent d968b4e
commit 3f0806d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
@@ -431,7 +431,7 @@ static int new_lockspace(const char *name, const char *cluster,
 	int do_unreg = 0;
 	int namelen = strlen(name);
 
-	if (namelen > DLM_LOCKSPACE_LEN)
+	if (namelen > DLM_LOCKSPACE_LEN || namelen == 0)
 		return -EINVAL;
 
 	if (!lvblen || (lvblen % 8))