linux-kernel - [PATCH -next] um: vector: Fix memory leak in vector

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Message-ID: <20221115073225.161592-1-xiangyang3@huawei.com>
Date:   Tue, 15 Nov 2022 15:32:25 +0800
From:   Xiang Yang <xiangyang3@...wei.com>
To:     <patchwork@...wei.com>, <xiangyang3@...wei.com>, <kuba@...nel.org>,
        <richard@....at>, <anton.ivanov@...bridgegreys.com>,
        <johannes@...solutions.net>
CC:     <linux-um@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] um: vector: Fix memory leak in vector_config

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@...wei.com>
---
 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 ded7c47d2fbe..131b7cb29576 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -767,6 +767,7 @@ static int vector_config(char *str, char **error_out)
 
 	if (parsed == NULL) {
 		*error_out = "vector_config failed to parse parameters";
+		kfree(params);
 		return -EINVAL;
 	}
 
-- 
2.22.0