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Date: Fri, 30 Jun 2017 01:06:29 +0100
From: Al Viro <viro@ZenIV.linux.org.uk>
To: Kees Cook <keescook@chromium.org>
Cc: Solar Designer <solar@openwall.com>,
        "Serge E. Hallyn" <serge@hallyn.com>,
        Andy Lutomirski <luto@kernel.org>, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fs: Reorder inode_owner_or_capable() to avoid needless
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References: <20170620214024.GA121654@beast>
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On Tue, Jun 20, 2017 at 02:40:24PM -0700, Kees Cook wrote:
> Checking for capabilities should be the last operation when performing
> access control tests so that PF_SUPERPRIV is set only when it was required
> for success (implying that the capability was needed for the operation).

Applied