netdev - Re: [PATCH net v4] net/ipv6: Add anycast addresses to a global hashtable

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:   Sat, 27 Oct 2018 21:27:04 -0400
From:   Jeff Barnhill <0xeffeff@...il.com>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH net v4] net/ipv6: Add anycast addresses to a global hashtable

You are right, David...I mistook the refcount_dec_and_test() in
aca_put() as being for the fib6_info, but it's for the aca_refcnt.
Thanks!  I'll submit a corrected patch.
On Sat, Oct 27, 2018 at 7:39 PM David Ahern <dsahern@...il.com> wrote:
>
> On 10/27/18 12:02 PM, Jeff Barnhill wrote:
> > @@ -275,6 +356,11 @@ int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr)
> >               err = -ENOMEM;
> >               goto out;
> >       }
> > +     err = ipv6_add_acaddr_hash(dev_net(idev->dev), addr);
> > +     if (err) {
> > +             aca_put(aca);
> > +             goto out;
> > +     }
> >
> >       aca->aca_next = idev->ac_list;
> >       idev->ac_list = aca;
>
> you misunderstood my comment. aca_put is instead of a double call to
> fib6_info_release(f6i). You still need one call to
> fib6_info_release(f6i) for the addrconf_f6i_alloc.