diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index aabaaacdb4fa..a3325ceab484 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1604,8 +1604,10 @@ static int lo_compat_ioctl(struct block_device *bdev, blk_mode_t mode,
 
 	switch(cmd) {
 	case LOOP_SET_STATUS:
-		err = loop_set_status_compat(lo,
-			     (const struct compat_loop_info __user *)arg);
+		err = -EPERM;
+		if ((mode & BLK_OPEN_WRITE) || capable(CAP_SYS_ADMIN))
+			err = loop_set_status_compat(lo,
+				(const struct compat_loop_info __user *)arg);
 		break;
 	case LOOP_GET_STATUS:
 		err = loop_get_status_compat(lo,