linux-kernel - Re: [PATCH v4] driver core: Fix use-after-free and double free on glue directory

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:   Fri, 24 May 2019 21:04:43 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Muchun Song <smuchun@...il.com>
Cc:     rafael@...nel.org, benh@...nel.crashing.org, prsood@...eaurora.org,
        mojha@...eaurora.org, gkohli@...eaurora.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        zhaowuyun@...gtech.com
Subject: Re: [PATCH v4] driver core: Fix use-after-free and double free on
 glue directory

On Thu, May 16, 2019 at 10:23:42PM +0800, Muchun Song wrote:
> There is a race condition between removing glue directory and adding a new
> device under the glue directory. It can be reproduced in following test:

<snip>

Is this related to:
	Subject: [PATCH v3] drivers: core: Remove glue dirs early only when refcount is 1

?

If so, why is the solution so different?

thanks,

greg k-h