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Message-ID: <20160729180211.GB11621@pc.thejh.net>
Date: Fri, 29 Jul 2016 20:02:11 +0200
From: Jann Horn <jann@...jh.net>
To: kernel-hardening@...ts.openwall.com
Cc: linux-security-module@...r.kernel.org, keescook@...omium.org,
spender@...ecurity.net, jmorris@...ei.org,
casey.schaufler@...el.com, michael.leibowitz@...el.com,
william.c.roberts@...el.com,
Elena Reshetova <elena.reshetova@...el.com>
Subject: Re: [RFC] [PATCH 3/5] sb_unsharefs LSM hook
On Fri, Jul 29, 2016 at 10:34:38AM +0300, Elena Reshetova wrote:
> This adds a new security_sb_unsharefs() LSM hook.
> It can be used by LSMs concerned about unsharefs()
> system call.
There is no unsharefs() system call. Your patch touches a kernel function
unshare_fs_struct() that is called by the NFS server kernel thread and
some lustre stuff, which also looks like kernel threads.
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