linux-kernel - Re: [PATCH V4 net 2/3] net: hns3: fix kernel crash when devlink reload during pf initialization

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: Tue, 26 Mar 2024 11:22:38 +0000
From: Simon Horman <horms@...nel.org>
To: Jijie Shao <shaojijie@...wei.com>
Cc: yisen.zhuang@...wei.com, salil.mehta@...wei.com, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	michal.kubiak@...el.com, rkannoth@...vell.com, jiri@...nulli.us,
	shenjian15@...wei.com, wangjie125@...wei.com,
	liuyonglong@...wei.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 net 2/3] net: hns3: fix kernel crash when devlink
 reload during pf initialization

On Mon, Mar 25, 2024 at 08:43:10PM +0800, Jijie Shao wrote:
> From: Yonglong Liu <liuyonglong@...wei.com>
> 
> The devlink reload process will access the hardware resources,
> but the register operation is done before the hardware is initialized.
> So, processing the devlink reload during initialization may lead to kernel
> crash. This patch fixes this by taking devl_lock during initialization.
> 
> Fixes: b741269b2759 ("net: hns3: add support for registering devlink for PF")
> Signed-off-by: Yonglong Liu <liuyonglong@...wei.com>
> Signed-off-by: Jijie Shao <shaojijie@...wei.com>

Reviewed-by: Simon Horman <horms@...nel.org>