From: Richard Guy Briggs <rgb@redhat.com>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Jones Desougi <jones.desougi+netfilter@gmail.com>,
Phil Sutter <phil@nwl.cc>, Florian Westphal <fw@strlen.de>,
LKML <linux-kernel@vger.kernel.org>,
Linux-Audit Mailing List <linux-audit@redhat.com>,
netfilter-devel@vger.kernel.org, twoerner@redhat.com,
Eric Paris <eparis@parisplace.org>,
tgraf@infradead.org, dan.carpenter@oracle.com
Subject: Re: [PATCH v5] audit: log nftables configuration change events once per table
Date: Wed, 31 Mar 2021 16:55:38 -0400 [thread overview]
Message-ID: <20210331205538.GJ3112383@madcap2.tricolour.ca> (raw)
In-Reply-To: <20210331204635.GA4634@salvia>
On 2021-03-31 22:46, Pablo Neira Ayuso wrote:
> On Fri, Mar 26, 2021 at 01:38:59PM -0400, Richard Guy Briggs wrote:
> > @@ -8006,12 +7966,65 @@ static void nft_commit_notify(struct net *net, u32 portid)
> > WARN_ON_ONCE(!list_empty(&net->nft.notify_list));
> > }
> >
> > +static int nf_tables_commit_audit_alloc(struct list_head *adl,
> > + struct nft_table *table)
> > +{
> > + struct nft_audit_data *adp;
> > +
> > + list_for_each_entry(adp, adl, list) {
> > + if (adp->table == table)
> > + return 0;
> > + }
> > + adp = kzalloc(sizeof(*adp), GFP_KERNEL);
> > + if (!adp)
> > + return -ENOMEM;
> > + adp->table = table;
> > + INIT_LIST_HEAD(&adp->list);
>
> This INIT_LIST_HEAD is not required for an object that is going to be
> inserted into the 'adl' list.
>
> > + list_add(&adp->list, adl);
>
> If no objections, I'll amend this patch. I'll include the UAF fix and
> remove this unnecessary INIT_LIST_HEAD.
Ok, so it is harmless other than being code noise and overhead, thanks again.
- RGB
--
Richard Guy Briggs <rgb@redhat.com>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635
--
Linux-audit mailing list
Linux-audit@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-audit
next prev parent reply other threads:[~2021-03-31 20:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-26 17:38 [PATCH v5] audit: log nftables configuration change events once per table Richard Guy Briggs
2021-03-29 0:50 ` Paul Moore
2021-03-30 22:53 ` Pablo Neira Ayuso
2021-03-31 0:50 ` Paul Moore
2021-03-31 20:22 ` Pablo Neira Ayuso
2021-03-31 20:53 ` Richard Guy Briggs
2021-03-31 20:56 ` Pablo Neira Ayuso
2021-03-31 20:46 ` Pablo Neira Ayuso
2021-03-31 20:55 ` Richard Guy Briggs [this message]
2021-04-01 13:24 ` Phil Sutter
2021-04-01 13:34 ` Richard Guy Briggs
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210331205538.GJ3112383@madcap2.tricolour.ca \
--to=rgb@redhat.com \
--cc=dan.carpenter@oracle.com \
--cc=eparis@parisplace.org \
--cc=fw@strlen.de \
--cc=jones.desougi+netfilter@gmail.com \
--cc=linux-audit@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=pablo@netfilter.org \
--cc=phil@nwl.cc \
--cc=tgraf@infradead.org \
--cc=twoerner@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).