linux-kernel - Re: use-after-free in srpt_enable

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Date:   Wed, 27 Jul 2022 03:24:36 +0000
From:   "lizhijian@...itsu.com" <lizhijian@...itsu.com>
To:     Bart Van Assche <bvanassche@....org>,
        Hillf Danton <hdanton@...a.com>
CC:     Mike Christie <michael.christie@...cle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Leon Romanovsky <leon@...nel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "target-devel@...r.kernel.org" <target-devel@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: use-after-free in srpt_enable_tpg()

Bart,


On 05/07/2022 12:34, Bart Van Assche wrote:
>
> A potential solution could be to decouple the lifetimes of the data structures used for configfs (struct se_wwn and struct srpt_tpg) and the data structures associated with RDMA objects (struct srpt_port). If nobody else beats me to this I will try to find the time to implement this approach. 

I saw your approach this morning, i will have a look and tests later.

Thanks
Zhijian