1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/futex.c b/kernel/futex.c
index 1c337112335c..0672ff88f159 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -247,6 +247,7 @@ again:
         if (err < 0)
                 return err;
 
+        page = compound_head(page);
         lock_page(page);
         if (!page->mapping) {
                 unlock_page(page);
@@ -299,7 +300,7 @@ void put_futex_key(int fshared, union futex_key *key)
 static int fault_in_user_writeable(u32 __user *uaddr)
 {
         int ret = get_user_pages(current, current->mm, (unsigned long)uaddr,
-                                 sizeof(*uaddr), 1, 0, NULL, NULL);
+                                 1, 1, 0, NULL, NULL);
         return ret < 0 ? ret : 0;
 }