1 files changed, 3 insertions, 8 deletions

diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 173b3873a4f4..1925d6d222b8 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -515,14 +515,9 @@ static ssize_t device_write(struct file *file, const char __user *buf,
         if (count > sizeof(struct dlm_write_request) + DLM_RESNAME_MAXLEN)
                 return -EINVAL;
 
-        kbuf = kzalloc(count + 1, GFP_NOFS);
-        if (!kbuf)
-                return -ENOMEM;
-
-        if (copy_from_user(kbuf, buf, count)) {
-                error = -EFAULT;
-                goto out_free;
-        }
+        kbuf = memdup_user_nul(buf, count);
+        if (!IS_ERR(kbuf))
+                return PTR_ERR(kbuf);
 
         if (check_version(kbuf)) {
                 error = -EBADE;