linux-kernel - Re: [PATCH v2 0/3] Relocate execve() sanity checks

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Date:   Fri, 5 Jun 2020 17:40:53 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Alexander Viro <viro@...iv.linux.org.uk>,
        Aleksa Sarai <cyphar@...har.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Eric Biggers <ebiggers3@...il.com>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Relocate execve() sanity checks

On Fri,  5 Jun 2020 09:00:10 -0700 Kees Cook <keescook@...omium.org> wrote:

> While looking at the code paths for the proposed O_MAYEXEC flag, I saw
> some things that looked like they should be fixed up.
> 
>   exec: Change uselib(2) IS_SREG() failure to EACCES
> 	This just regularizes the return code on uselib(2).
> 
>   exec: Move S_ISREG() check earlier
> 	This moves the S_ISREG() check even earlier than it was already.
> 
>   exec: Move path_noexec() check earlier
> 	This adds the path_noexec() check to the same place as the
> 	S_ISREG() check.

Thanks.

These don't seem super-urgent and they aren't super-reviewed, so I
suggest we hold them off until the next cycle?