2022-11-15 07:59:28

by Xiang Yang

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 <[email protected]>
---
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

2022-11-16 16:20:21

by Anton Ivanov

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 <[email protected]>
> ---
> 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 <[email protected]>
--
Anton R. Ivanov
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