netdev - Re: [PATCH v2 7/7] taskstats: Use task_is_in_init_pid

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: <YbgyD6cK/ZkMPCDb@balbir-desktop>
Date:   Tue, 14 Dec 2021 16:56:31 +1100
From:   Balbir Singh <bsingharora@...il.com>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Leon Romanovsky <leon@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jan Harkes <jaharkes@...cmu.edu>, coda@...cmu.edu,
        Paul Moore <paul@...l-moore.com>,
        Eric Paris <eparis@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, codalist@...a.cs.cmu.edu,
        linux-audit@...hat.com
Subject: Re: [PATCH v2 7/7] taskstats: Use task_is_in_init_pid_ns()

On Wed, Dec 08, 2021 at 04:33:20PM +0800, Leo Yan wrote:
> Replace open code with task_is_in_init_pid_ns() for checking root PID
> namespace.
> 
> Signed-off-by: Leo Yan <leo.yan@...aro.org>
> ---
>  kernel/taskstats.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/taskstats.c b/kernel/taskstats.c
> index 2b4898b4752e..f570d8e1f001 100644
> --- a/kernel/taskstats.c
> +++ b/kernel/taskstats.c
> @@ -284,7 +284,7 @@ static int add_del_listener(pid_t pid, const struct cpumask *mask, int isadd)
>  	if (current_user_ns() != &init_user_ns)
>  		return -EINVAL;
>  
> -	if (task_active_pid_ns(current) != &init_pid_ns)
> +	if (!task_is_in_init_pid_ns(current))
>  		return -EINVAL;
>  
>  	if (isadd == REGISTER) {
> -- 
> 2.25.1
>

Acked-by: Balbir Singh <bsingharora@...il.com>