From 8ed5d4945716adff06aeb0be9788ede33cb9b973 Mon Sep 17 00:00:00 2001
From: Xiang Yang <xiangyang3@huawei.com>
Date: Tue, 15 Nov 2022 15:32:25 +0800
Subject: [PATCH] um: vector: Fix memory leak in vector_config

[ Upstream commit 8f88c73afe481f93d40801596927e8c0047b6d96 ]

If the return value of the uml_parse_vector_ifspec function is NULL,
we should call kfree(params) to prevent memory leak.

Fixes: 49da7e64f33e ("High Performance UML Vector Network Driver")
Signed-off-by: Xiang Yang <xiangyang3@huawei.com>
Acked-By: Anton Ivanov <anton.ivanov@kot-begemot.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/drivers/vector_kern.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index cde6db184c26..45a4bcd27a39 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -770,6 +770,7 @@ static int vector_config(char *str, char **error_out)
 
 	if (parsed == NULL) {
 		*error_out = "vector_config failed to parse parameters";
+		kfree(params);
 		return -EINVAL;
 	}