1 files changed, 5 insertions, 4 deletions

diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index b53e1b5d80f4..58eacd41526c 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -114,10 +114,11 @@ long strncpy_from_user(char *dst, const char __user *src, long count)
 
                 kasan_check_write(dst, count);
                 check_object_size(dst, count, false);
-                user_access_begin();
-                retval = do_strncpy_from_user(dst, src, count, max);
-                user_access_end();
-                return retval;
+                if (user_access_begin(src, max)) {
+                        retval = do_strncpy_from_user(dst, src, count, max);
+                        user_access_end();
+                        return retval;
+                }
         }
         return -EFAULT;
 }