diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 5525267d2e03..ea1432251ccf 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -38,6 +38,8 @@ static void io_req_uring_cleanup(struct io_kiocb *req, unsigned int issue_flags)
 	if (io_alloc_cache_put(&req->ctx->cmd_cache, ac)) {
 		ioucmd->sqe = NULL;
 		io_req_async_data_clear(req, REQ_F_NEED_CLEANUP);
+	} else {
+		io_vec_free(&ac->vec);
 	}
 }
 
@@ -208,6 +210,8 @@ int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 	ac = io_uring_alloc_async_data(&req->ctx->cmd_cache, req);
 	if (!ac)
 		return -ENOMEM;
+	if (ac->vec.iovec)
+		req->flags |= REQ_F_NEED_CLEANUP;
 	ioucmd->sqe = sqe;
 	return 0;
 }