netdev - Re: [patch -master] netfilter: xt_CT: checking for IS

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]

Date:	Mon, 3 Aug 2015 11:29:14 -0700
From:	Joe Stringer <joestringer@...ira.com>
To:	Pablo Neira Ayuso <pablo@...filter.org>
Cc:	Dan Carpenter <dan.carpenter@...cle.com>,
	Patrick McHardy <kaber@...sh.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	"David S. Miller" <davem@...emloft.net>,
	netfilter-devel@...r.kernel.org, coreteam@...filter.org,
	Linux Netdev List <netdev@...r.kernel.org>,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch -master] netfilter: xt_CT: checking for IS_ERR() instead
 of NULL

On 30 July 2015 at 04:57, Pablo Neira Ayuso <pablo@...filter.org> wrote:
> On Tue, Jul 28, 2015 at 01:42:28AM +0300, Dan Carpenter wrote:
>> We recently changed this from nf_conntrack_alloc() to nf_ct_tmpl_alloc()
>> so the error handling needs to changed to check for NULL instead of
>> IS_ERR().
>>
>> Fixes: 0838aa7fcfcd ('netfilter: fix netns dependencies with conntrack templates')
>> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
>
> Applied, thanks.
>
> I have also appended this chunk, since synproxy is also affected:
>
> --- a/net/netfilter/nf_synproxy_core.c
> +++ b/net/netfilter/nf_synproxy_core.c
> @@ -353,7 +353,7 @@ static int __net_init synproxy_net_init(struct net *net)
>         int err = -ENOMEM;
>
>         ct = nf_ct_tmpl_alloc(net, 0, GFP_KERNEL);
> -       if (IS_ERR(ct)) {
> +       if (!ct) {
>                 err = PTR_ERR(ct);
>                 goto err1;
>         }

Does PTR_ERR() implicitly interpret NULL as -ENOMEM? Seems like the
fix applied here is a little different from the xt_CT fix.
--
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