netdev - Re: [scr265482] ip

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>] [day] [month] [year] [list]

Message-ID: <CAM_iQpVCwrdzWztMVyjdqNqoHPK9xuGCiEUWy5iUH3u7VWOaqw@mail.gmail.com>
Date:   Thu, 24 Nov 2016 20:12:18 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Liyang Yu (于立洋1) <yuliyang1@...com>
Cc:     "security@...nel.org" <security@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "cve-request@...re.org" <cve-request@...re.org>
Subject: Re: [scr265482] ip_tunnel.c

On Thu, Nov 24, 2016 at 5:39 PM, Liyang Yu (于立洋1) <yuliyang1@...com> wrote:
> BTW:
>
>    Which RFC suggests UINT_MAX as GRE sequence number?  Can you show me?

https://tools.ietf.org/html/rfc2890

"The receiver maintains the sequence number value of the last successfully
decapsulated packet. Upon establishment of the GRE tunnel, this value
should be set to (2**32)-1."

I agree with Eric here, this is a minor issue, not a serious bug at all.
Please test my patch since you can reproduce it.

BTW, please don't top-post here.

Thanks.