netdev - Re: [PATCH net] net: ipv6: prevent use after free in ip6_route_mpath

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Message-ID: <2c3bfeb5-1bca-f660-a93e-caec4deef325@gmail.com>
Date:   Sun, 3 Jun 2018 19:39:59 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     David Ahern <dsa@...ulusnetworks.com>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net] net: ipv6: prevent use after free in
 ip6_route_mpath_notify()



On 06/03/2018 07:46 AM, David Ahern wrote:

> It was a mistake to set rt_last before checking err. So the
> use-after-free exposed the semantic error.
> 

SGTM, please send the formal patch then, thanks !