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Date: Fri, 1 May 2020 13:36:08 -0700
From: Deven Bowers <deven.desai@...ux.microsoft.com>
To: Mickaël Salaün <mic@...ikod.net>,
linux-kernel@...r.kernel.org
Cc: Aleksa Sarai <cyphar@...har.com>, Alexei Starovoitov <ast@...nel.org>,
Al Viro <viro@...iv.linux.org.uk>, Andy Lutomirski <luto@...nel.org>,
Christian Heimes <christian@...hon.org>,
Daniel Borkmann <daniel@...earbox.net>, Eric Chiang <ericchiang@...gle.com>,
Florian Weimer <fweimer@...hat.com>, James Morris <jmorris@...ei.org>,
Jan Kara <jack@...e.cz>, Jann Horn <jannh@...gle.com>,
Jonathan Corbet <corbet@....net>, Kees Cook <keescook@...omium.org>,
Matthew Garrett <mjg59@...gle.com>, Matthew Wilcox <willy@...radead.org>,
Michael Kerrisk <mtk.manpages@...il.com>,
Mickaël Salaün <mickael.salaun@....gouv.fr>,
Mimi Zohar <zohar@...ux.ibm.com>,
Philippe Trébuchet <philippe.trebuchet@....gouv.fr>,
Scott Shell <scottsh@...rosoft.com>,
Sean Christopherson <sean.j.christopherson@...el.com>,
Shuah Khan <shuah@...nel.org>, Steve Dower <steve.dower@...hon.org>,
Steve Grubb <sgrubb@...hat.com>,
Thibaut Sautereau <thibaut.sautereau@....gouv.fr>,
Vincent Strubel <vincent.strubel@....gouv.fr>,
kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
linux-security-module@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v4 1/5] fs: Add support for an O_MAYEXEC flag on
openat2(2)
On 4/30/2020 6:23 AM, Mickaël Salaün wrote:
> When the O_MAYEXEC flag is passed, openat2(2) may be subject to
> additional restrictions depending on a security policy managed by the
> kernel through a sysctl or implemented by an LSM thanks to the
> inode_permission hook.
> This new flag is ignored by open(2) and openat(2).
Reviewed-by: Deven Bowers <deven.desai@...ux.microsoft.com>
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