diff --git a/ipc/shm.c b/ipc/shm.c
index 1b3adfe3c60e259e7366aa76a23b14e7c1a173b5..1e2b1692ba2c6a3a9f4d03c1120334facdb446cf 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1237,7 +1237,7 @@ COMPAT_SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, void __user *, uptr)
 		err = shmctl_stat(ns, shmid, cmd, &sem64);
 		if (err < 0)
 			return err;
-		if (copy_compat_shmid_to_user(&sem64, uptr, version))
+		if (copy_compat_shmid_to_user(uptr, &sem64, version))
 			err = -EFAULT;
 		return err;