Re: [PATCH] fs: Reorder inode_owner_or_capable() to avoid needless

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To: Kees Cook <keescook@xxxxxxxxxxxx>
Subject: Re: [PATCH] fs: Reorder inode_owner_or_capable() to avoid needless
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Fri, 30 Jun 2017 01:06:29 +0100
Cc: Solar Designer <solar@xxxxxxxxxxxx>, "Serge E. Hallyn" <serge@xxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20170620214024.GA121654@beast>
User-agent: Mutt/1.8.0 (2017-02-23)

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

References:
- [PATCH] fs: Reorder inode_owner_or_capable() to avoid needless
  - From: Kees Cook

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