diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 9adfc38ca7da..ed7e1257399c 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -574,6 +574,16 @@ static ssize_t exfat_file_write_iter(struct kiocb *iocb, struct iov_iter *iter)
 	if (ret < 0)
 		goto unlock;
 
+	if (iocb->ki_flags & IOCB_DIRECT) {
+		unsigned long align = pos | iov_iter_alignment(iter);
+
+		if (!IS_ALIGNED(align, i_blocksize(inode)) &&
+		    !IS_ALIGNED(align, bdev_logical_block_size(inode->i_sb->s_bdev))) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	}
+
 	if (pos > valid_size) {
 		ret = exfat_file_zeroed_range(file, valid_size, pos);
 		if (ret < 0 && ret != -ENOSPC) {