netdev - Re: [PATCH net,v5, 3/3] hv_netvsc: Mark VF as slave before exposing it to user-mode

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]

Message-ID: <20231119085353.757792c1@hermes.local>
Date: Sun, 19 Nov 2023 08:53:53 -0800
From: Stephen Hemminger <stephen@...workplumber.org>
To: Haiyang Zhang <haiyangz@...rosoft.com>
Cc: linux-hyperv@...r.kernel.org, netdev@...r.kernel.org, kys@...rosoft.com,
 wei.liu@...nel.org, decui@...rosoft.com, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, davem@...emloft.net,
 linux-kernel@...r.kernel.org, Long Li <longli@...rosoft.com>,
 stable@...r.kernel.org
Subject: Re: [PATCH net,v5, 3/3] hv_netvsc: Mark VF as slave before exposing
 it to user-mode

On Sun, 19 Nov 2023 08:23:43 -0800
Haiyang Zhang <haiyangz@...rosoft.com> wrote:

> From: Long Li <longli@...rosoft.com>
> 
> When a VF is being exposed form the kernel, it should be marked as "slave"
> before exposing to the user-mode. The VF is not usable without netvsc
> running as master. The user-mode should never see a VF without the "slave"
> flag.
> 
> This commit moves the code of setting the slave flag to the time before
> VF is exposed to user-mode.
> 
> Cc: stable@...r.kernel.org
> Fixes: 0c195567a8f6 ("netvsc: transparent VF management")
> Signed-off-by: Long Li <longli@...rosoft.com>
> Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>

Acked-by: Stephen Hemminger <stephen@...workplumber.org>