linux-kernel - Re: ptrace versus setuid changes in 4.14?

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Message-ID: <20171222155536.502c0a53@zooty>
Date:   Fri, 22 Dec 2017 15:55:36 -0500
From:   Tom Horsley <horsley1953@...il.com>
To:     Laura Abbott <labbott@...hat.com>
Cc:     linux-kernel@...r.kernel.org, Kees Cook <keescook@...omium.org>,
        David Howells <dhowells@...hat.com>,
        Serge Hallyn <serge@...lyn.com>,
        James Morris <james.l.morris@...cle.com>
Subject: Re: ptrace versus setuid changes in 4.14?

On Fri, 22 Dec 2017 12:28:25 -0800
Laura Abbott wrote:

> Assuming this is https://bugzilla.redhat.com/show_bug.cgi?id=1528633
> This is yet another victim of
> 
> commit e37fdb785a5f95ecadf43b773c97f676500ac7b8 (refs/bisect/bad)
> Author: Kees Cook <keescook@...omium.org>
> Date:   Tue Jul 18 15:25:31 2017 -0700
> 
>      exec: Use secureexec for setting dumpability

You mean there is hope this really is a bug and not a security
enhancement? Amazing :-).

And yes, that is the bugzilla I submitted after I reduced
things to a small test program.