netdev - Re: [PATCH net-next] net: ipv6: Allow connect to linklocal address from socket bound to vrf

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

Date:   Mon, 08 Jan 2018 14:11:35 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     dsahern@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: ipv6: Allow connect to linklocal address
 from socket bound to vrf

From: David Ahern <dsahern@...il.com>
Date: Thu,  4 Jan 2018 14:03:54 -0800

> Allow a process bound to a VRF to connect to a linklocal address.
> Currently, this fails because of a mismatch between the scope of the
> linklocal address and the sk_bound_dev_if inherited by the VRF binding:
>     $ ssh -6 fe80::70b8:cff:fedd:ead8%eth1
>     ssh: connect to host fe80::70b8:cff:fedd:ead8%eth1 port 22: Invalid argument
> 
> Relax the scope check to allow the socket to be bound to the same L3
> device as the scope id.
> 
> This makes ipv6 linklocal consistent with other relaxed checks enabled
> by commits 1ff23beebdd3 ("net: l3mdev: Allow send on enslaved interface")
> and 7bb387c5ab12a ("net: Allow IP_MULTICAST_IF to set index to L3 slave").
> 
> Signed-off-by: David Ahern <dsahern@...il.com>

Applied, thanks David.