netdev - Re: [PATCH v2 bpf] bpf: devmap: fix wrong interface selection in notifier

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Message-ID: <d71add49-2d6f-a535-945e-28eff0873dbe@iogearbox.net>
Date:   Fri, 26 Oct 2018 00:56:22 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Taehee Yoo <ap420073@...il.com>, ast@...nel.org
Cc:     netdev@...r.kernel.org, john.fastabend@...il.com
Subject: Re: [PATCH v2 bpf] bpf: devmap: fix wrong interface selection in
 notifier_call

On 10/24/2018 01:15 PM, Taehee Yoo wrote:
> The dev_map_notification() removes interface in devmap if
> unregistering interface's ifindex is same.
> But only checking ifindex is not enough because other netns can have
> same ifindex. so that wrong interface selection could occurred.
> Hence netdev pointer comparison code is added.
> 
> v2: compare netdev pointer instead of using net_eq() (Daniel Borkmann)
> v1: Initial patch
> 
> Fixes: 2ddf71e23cc2 ("net: add notifier hooks for devmap bpf map")
> Signed-off-by: Taehee Yoo <ap420073@...il.com>

Applied to bpf, thanks Taehee!