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Date: Thu, 14 May 2020 13:37:49 +1000 (AEST)
From: James Morris <jmorris@...ei.org>
To: Mickaël Salaün <mic@...ikod.net>
cc: linux-kernel@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>,
Andy Lutomirski <luto@...capital.net>, Arnd Bergmann <arnd@...db.de>,
Casey Schaufler <casey@...aufler-ca.com>, Jann Horn <jannh@...gle.com>,
Jonathan Corbet <corbet@....net>, Kees Cook <keescook@...omium.org>,
Michael Kerrisk <mtk.manpages@...il.com>,
Mickaël Salaün <mickael.salaun@....gouv.fr>,
"Serge E . Hallyn" <serge@...lyn.com>, Shuah Khan <shuah@...nel.org>,
Vincent Dagonneau <vincent.dagonneau@....gouv.fr>,
kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-kselftest@...r.kernel.org,
linux-security-module@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH v17 05/10] fs,landlock: Support filesystem
access-control
On Mon, 11 May 2020, Mickaël Salaün wrote:
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 45cc10cdf6dd..2276642f8e05 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -1517,6 +1517,11 @@ struct super_block {
> /* Pending fsnotify inode refs */
> atomic_long_t s_fsnotify_inode_refs;
>
> +#ifdef CONFIG_SECURITY_LANDLOCK
> + /* References to Landlock underlying objects */
> + atomic_long_t s_landlock_inode_refs;
> +#endif
> +
This needs to be converted to the LSM API via superblock blob stacking.
See Casey's old patch:
https://lore.kernel.org/linux-security-module/20190829232935.7099-2-casey@schaufler-ca.com/
--
James Morris
<jmorris@...ei.org>
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