From: Oleg Nesterov <oleg@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jann Horn <jann@thejh.net>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Roland McGrath <roland@hack.frob.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>
Subject: Re: [PATCH v3 0/8] Various fixes related to ptrace_may_access()
Date: Wed, 2 Nov 2016 19:38:26 +0100 [thread overview]
Message-ID: <20161102183826.GD1112@redhat.com> (raw)
In-Reply-To: <CA+55aFz6Js+=H01P5d4s2XFORh9sWSA37kbDuYy5ZLgTgKf=bg@mail.gmail.com>
On 11/01, Linus Torvalds wrote:
>
> Oleg, you're really the obvious maintainer choice at least for some of
> this,
Well. I still disagree with 1/8, I think we need to fix and cleanup
the usage of cred_guard_mutex we already have. And to me the additional
complications added by, say, 4/8 make no sense, we can make a much more
simple change to avoid this leak "in practice".
But. I never pretended I understand the security problems. So I won't
really argue with these changes.
Oleg.
next prev parent reply other threads:[~2016-11-02 17:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-30 21:46 [PATCH v3 0/8] Various fixes related to ptrace_may_access() Jann Horn
2016-10-30 21:46 ` [PATCH v3 1/8] exec: introduce cred_guard_light Jann Horn
2016-11-02 18:18 ` Oleg Nesterov
2016-11-02 20:50 ` Jann Horn
2016-11-02 21:38 ` Ben Hutchings
2016-11-02 21:54 ` Jann Horn
2016-11-03 18:12 ` Oleg Nesterov
2016-11-03 21:17 ` Jann Horn
2016-11-04 13:26 ` Eric W. Biederman
2016-11-04 15:00 ` Eric W. Biederman
2016-11-04 18:04 ` Oleg Nesterov
2016-11-04 18:45 ` Oleg Nesterov
2016-11-05 14:56 ` Oleg Nesterov
2016-11-09 0:34 ` Eric W. Biederman
2016-11-16 20:03 ` Eric W. Biederman
2016-11-08 22:02 ` Kees Cook
2016-11-08 22:46 ` Eric W. Biederman
2016-11-08 22:56 ` Benjamin LaHaise
2016-11-08 23:33 ` Eric W. Biederman
2016-10-30 21:46 ` [PATCH v3 2/8] exec: add privunit to task_struct Jann Horn
2016-10-30 21:46 ` [PATCH v3 3/8] proc: use open()-time creds for ptrace checks Jann Horn
2016-10-30 21:46 ` [PATCH v3 4/8] futex: don't leak robust_list pointer Jann Horn
2016-10-30 21:46 ` [PATCH v3 5/8] proc: lock properly in ptrace_may_access callers Jann Horn
2016-10-30 21:46 ` [PATCH v3 6/8] fs/proc: fix attr access check Jann Horn
2016-10-30 21:46 ` [PATCH v3 7/8] proc: fix timerslack_ns handling Jann Horn
2016-10-30 21:46 ` [PATCH v3 8/8] Documentation: add security/ptrace_checks.txt Jann Horn
2016-11-01 23:57 ` [PATCH v3 0/8] Various fixes related to ptrace_may_access() Linus Torvalds
2016-11-02 18:38 ` Oleg Nesterov [this message]
2016-11-02 21:40 ` Jann Horn
2016-11-03 19:09 ` Andrew Morton
2016-11-03 20:01 ` Jann Horn
2016-11-04 0:57 ` James Morris
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