netdev - Re: [PATCH net v2 1/4] net: wangxun: fix the incorrect display of queue number in statistics

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Thu, 9 May 2024 08:19:54 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jiawen Wu <jiawenwu@...stnetic.com>
Cc: <davem@...emloft.net>, <edumazet@...gle.com>, <pabeni@...hat.com>,
 <rmk+kernel@...linux.org.uk>, <andrew@...n.ch>, <netdev@...r.kernel.org>,
 <mengyuanlou@...-swift.com>, <duanqiangwen@...-swift.com>
Subject: Re: [PATCH net v2 1/4] net: wangxun: fix the incorrect display of
 queue number in statistics

On Thu, 9 May 2024 10:39:22 +0800 Jiawen Wu wrote:
> > The ethtool API fetches the number of stats and the values in an
> > unsafe, non-atomic way. If someone increases the number of queues
> > while someone else is fetching the stats the memory of the latter
> > process will get corrupted. The code is correct as is.  
> 
> So should we keep the old code, showing stats with fixed maximum
> number of queues?

Yes.