netdev - Re: [PATCH net-next] net: diag: add workaround for inode truncation

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Message-ID: <20200901093613.28a36553@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 1 Sep 2020 09:36:13 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kernel-team@...com,
        zeil@...dex-team.ru, khlebnikov@...dex-team.ru, pabeni@...hat.com,
        Dave Marchevsky <davemarchevsky@...com>
Subject: Re: [PATCH net-next] net: diag: add workaround for inode truncation

On Tue, 1 Sep 2020 08:55:29 +0200 Eric Dumazet wrote:
> On 8/31/20 4:59 PM, Jakub Kicinski wrote:
> > Dave reports that struct inet_diag_msg::idiag_inode is 32 bit,
> > while inode's type is unsigned long. This leads to truncation.
> > 
> > Since there is nothing we can do about the size of existing
> > fields - add a new attribute to carry 64 bit inode numbers.
> 
> Last time I checked socket inode numbers were 32bit ?
> 
> Is there a plan changing this ?

Ugh, you're right that appears to be a local patch :/ 

I should have checked, sorry for the noise.