linux-kernel - Re: [PATCH] net: dev_forward_skb(): Scrub packet's per-netns info only when crossing netns

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Message-ID: <55538.1521571867@turing-police.cc.vt.edu>
Date:   Tue, 20 Mar 2018 14:51:07 -0400
From:   valdis.kletnieks@...edu
To:     Liran Alon <LIRAN.ALON@...CLE.COM>
Cc:     David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, idan.brown@...CLE.COM,
        yuval.shaia@...CLE.COM
Subject: Re: [PATCH] net: dev_forward_skb(): Scrub packet's per-netns info only when crossing netns

On Tue, 20 Mar 2018 18:39:47 +0200, Liran Alon said:
> What is your opinion in regards if it's OK to put the flag enabling this
> "fix" in /proc/sys/net/core? Do you think it's sufficient?

Umm.. *which* /proc/sys/net/core?  These could differ for things that
are in different namespaces.  Or are you proposing one systemwide
global value (which also gets "interesting" if it's writable inside a
container and changes the behavior a different container sees...)


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