netdev - Re: [PATCH v2 net-next 2/2] net: convert (struct ubuf_info)->refcnt to refcount

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: <CAF=yD-JMATnR-JR9W4=gJKNuZrO17fSh9KLJtBakCajwEr5bDQ@mail.gmail.com>
Date:   Thu, 31 Aug 2017 19:55:30 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH v2 net-next 2/2] net: convert (struct ubuf_info)->refcnt
 to refcount_t

On Thu, Aug 31, 2017 at 7:48 PM, Eric Dumazet <edumazet@...gle.com> wrote:
> refcount_t type and corresponding API should be
> used instead of atomic_t when the variable is used as
> a reference counter. This allows to avoid accidental
> refcounter overflows that might lead to use-after-free
> situations.
>
> v2: added the change in drivers/vhost/net.c as spotted
> by Willem.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Acked-by: Willem de Bruijn <willemb@...gle.com>