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

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Message-ID: <9a106cdc-03ea-cec6-1ef7-3c6fbf5ae753@cambridgegreys.com>
Date:   Wed, 16 Nov 2022 16:09:43 +0000
From:   Anton Ivanov <anton.ivanov@...bridgegreys.com>
To:     Xiang Yang <xiangyang3@...wei.com>, patchwork@...wei.com,
        kuba@...nel.org, richard@....at, johannes@...solutions.net
Cc:     linux-um@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] um: vector: Fix memory leak in vector_config



On 15/11/2022 07:32, Xiang Yang wrote:
> 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;
>   	}
>   

Acked-By: Anton Ivanov <anton.ivanov@...-begemot.co.uk>
-- 
Anton R. Ivanov
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