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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 1 Nov 2016 17:57:05 -0600
Message-ID: <CA+55aFz6Js+=H01P5d4s2XFORh9sWSA37kbDuYy5ZLgTgKf=bg@mail.gmail.com>
Subject: Re: [PATCH v3 0/8] Various fixes related to ptrace_may_access()
To: Jann Horn <jann@thejh.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
        Roland McGrath <roland@hack.frob.com>,
        Oleg Nesterov <oleg@redhat.com>,
        John Johansen <john.johansen@canonical.com>,
        James Morris <james.l.morris@oracle.com>,
        "Serge E. Hallyn" <serge@hallyn.com>,
        Paul Moore <aul@paul-moore.com>,
        Stephen Smalley <sds@tycho.nsa.gov>,
        Eric Paris <eparis@parisplace.org>,
        Casey Schaufler <casey@schaufler-ca.com>,
        Kees Cook <keescook@chromium.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Janis Danisevskis <jdanis@google.com>,
        Seth Forshee <seth.forshee@canonical.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Benjamin LaHaise <bcrl@kvack.org>,
        Ben Hutchings <ben@decadent.org.uk>,
        Andy Lutomirski <luto@amacapital.net>,
        Krister Johansen <kjlx@templeofstupid.com>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        LSM List <linux-security-module@vger.kernel.org>,
        "security@kernel.org" <security@kernel.org>
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On Sun, Oct 30, 2016 at 3:46 PM, Jann Horn <jann@thejh.net> wrote:
> Next try.
>
> Changes to the individual patches are mostly documented in their
> commit messages.
>
> Added/removed patches:
>  - Added "proc: fix timerslack_ns handling"
>  - Removed "ptrace: warn on ptrace_may_access without proper locking"
>    (because of some reverted changes in the "proc: lock properly [...]"
>    patch)

So I'm a bit unsure which tree this series is going to come in
through. There's no clear maintinership for this area, so I'm just
making sure that Andrew has this on his radar because I suspect this
is going to fall in his lap.

Oleg, you're really the obvious maintainer choice at least for some of
this, but I don't recall having ever pulled from you? If you are ok
with this and were to put  git tree etc, that would certainly also
work very well.  Or at least ack's for Andrew?

                  Linus

---

> Jann Horn (8):
>   exec: introduce cred_guard_light
>   exec: add privunit to task_struct
>   proc: use open()-time creds for ptrace checks
>   futex: don't leak robust_list pointer
>   proc: lock properly in ptrace_may_access callers
>   fs/proc: fix attr access check
>   proc: fix timerslack_ns handling
>   Documentation: add security/ptrace_checks.txt