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Date:   Mon, 19 Oct 2020 01:35:32 +0000
From:   "zhudi (J)" <zhudi21@...wei.com>
To:     Jesse Brandeburg <jesse.brandeburg@...el.com>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "Chenxiang (EulerOS)" <rose.chen@...wei.com>,
        David Ahern <dsahern@...il.com>
Subject: 答复: [PATCH] rtnetlink: fix data overflow in rtnl_calcit()

> > "ip addr show" command execute error when we have a physical network
> > card with number of VFs larger than 247.
> 
> Oh man, this bug has been hurting us forever and I've tried to fix it several
> times without much luck, so thanks for working on it!
> 
> CC: David Ahern <dsahern@...il.com>
> 
> As he's mentioned this bug.
> ...... 
> Kernel documentation says for you to use your real name, please do so,
> unless you're a rock star and have officially changed your name to zhudi.
> 

May be I should use name such as di.zhu  to avoid unnecessary problem :)

> > ---
> >  include/linux/netlink.h | 2 +-
> >  net/core/rtnetlink.c    | 8 ++++----
> >  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> Does it work without any changes to iproute2?

The patch only change the internal data struct currently only used by netlink_dump_start() function.
So I think this patch  has not effects on iproute2 or other packages

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