diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 08d364ed7d6c..c105aaf9ff5d 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1793,6 +1793,10 @@ static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,
 	inode = fuse_ilookup(fc, nodeid,  NULL);
 	if (!inode)
 		goto out_up_killsb;
+	if (!S_ISREG(inode->i_mode)) {
+		err = -EINVAL;
+		goto out_iput;
+	}
 
 	mapping = inode->i_mapping;
 	file_size = i_size_read(inode);
@@ -1970,7 +1974,10 @@ static int fuse_notify_retrieve(struct fuse_conn *fc, unsigned int size,
 
 	inode = fuse_ilookup(fc, nodeid, &fm);
 	if (inode) {
-		err = fuse_retrieve(fm, inode, &outarg);
+		if (!S_ISREG(inode->i_mode))
+			err = -EINVAL;
+		else
+			err = fuse_retrieve(fm, inode, &outarg);
 		iput(inode);
 	}
 	up_read(&fc->killsb);