netdev

Open Source and information security mailing list archives

Date:	Fri, 28 Sep 2007 18:13:54 -0500
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] Update get_net_ns_by_pid

Quoting Eric W. Biederman (ebiederm@...ssion.com):
> 
> In the -mm tree the rules for access an nsproxy have changed,
> and in get_net_ns_by_pid we access the nsproxy, so update
> it to follow the new rules.
> 
> Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>

Yup, looks right.

I assume Pavel's Acked-by would actually matter, but still

Acked-by: Serge Hallyn <serue@...ibm.com>

thanks,
-serge

> ---
> 
> diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
> index 739fbad..1caba10 100644
> --- a/net/core/rtnetlink.c
> +++ b/net/core/rtnetlink.c
> @@ -746,10 +746,10 @@ static struct net *get_net_ns_by_pid(pid_t pid)
>  	rcu_read_lock();
>  	tsk = find_task_by_pid(pid);
>  	if (tsk) {
> -		task_lock(tsk);
> -		if (tsk->nsproxy)
> -			net = get_net(tsk->nsproxy->net_ns);
> -		task_unlock(tsk);
> +		struct nsproxy *nsproxy;
> +		nsproxy = task_nsproxy(tsk);
> +		if (nsproxy)
> +			net = get_net(nsproxy->net_ns);
>  	}
>  	rcu_read_unlock();
>  	return net;
> _______________________________________________
> Containers mailing list
> Containers@...ts.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/containers
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

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