linux-kernel - Re: [PATCH] hostap: Fix memleak in prism2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87tuoimhuc.fsf@codeaurora.org>
Date:   Wed, 07 Apr 2021 14:53:15 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Dinghao Liu <dinghao.liu@....edu.cn>
Cc:     kjlu@....edu, Jouni Malinen <j@...fi>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Leon Romanovsky <leon@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hostap: Fix memleak in prism2_config

Dinghao Liu <dinghao.liu@....edu.cn> writes:

> When prism2_hw_config() fails, we just return an error code
> without any resource release, which may lead to memleak.
>
> Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
> ---
>  drivers/net/wireless/intersil/hostap/hostap_cs.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wireless/intersil/hostap/hostap_cs.c b/drivers/net/wireless/intersil/hostap/hostap_cs.c
> index ec7db2badc40..7dc16ab50ad6 100644
> --- a/drivers/net/wireless/intersil/hostap/hostap_cs.c
> +++ b/drivers/net/wireless/intersil/hostap/hostap_cs.c
> @@ -536,10 +536,10 @@ static int prism2_config(struct pcmcia_device *link)
>  	sandisk_enable_wireless(dev);
>  
>  	ret = prism2_hw_config(dev, 1);
> -	if (!ret)
> -		ret = hostap_hw_ready(dev);
> +	if (ret)
> +		goto failed;
>  
> -	return ret;
> +	return hostap_hw_ready(dev);;

Two semicolons.

But I'm not sure about this, can someone provide a Reviewed-by tag?

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches