From: Xiang Yang <xiangyang3@huawei.com>
Date: Tue, 15 Nov 2022 07:32:25 +0000 (+0800)
Subject: um: vector: Fix memory leak in vector_config
X-Git-Tag: baikal/mips/sdk5.8.2~291
X-Git-Url: https://git.baikalelectronics.ru/?a=commitdiff_plain;h=5f9296d43b64da724277873f1eb21d2cb88dd8ad;p=kernel.git

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: 6922d31f3415 ("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>
---

diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 769ffbd9e9a61..eb9dba8dcf958 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -746,6 +746,7 @@ static int vector_config(char *str, char **error_out)
 
 	if (parsed == NULL) {
 		*error_out = "vector_config failed to parse parameters";
+		kfree(params);
 		return -EINVAL;
 	}