linux-kernel - [PATCH 0/4] proc: deuglify task

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20141107201424.GA22209@redhat.com>
Date:	Fri, 7 Nov 2014 21:14:24 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Aaron Tomlin <atomlin@...hat.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Sterling Alexander <stalexan@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] proc: deuglify task_state()

Hello.

I tried to optimize the usage of tasklist_lock in exit_notify() paths
but found the bug which should be fixed first: the EXIT_DEAD setting
in reparent_leader() can break the task_ppid_nr_ns()-like code and
ptrace_parent().

I am still thinking about the "right" fix, but whatever we do we need
to cleanup these users, probably before the fix.

One particular user is task_state(), but it also asks for other off-
topic cleanups which I believe make sense anyway, lets do this first.

Oleg.

 fs/proc/array.c |   47 ++++++++++++++++++++++-------------------------
 1 files changed, 22 insertions(+), 25 deletions(-)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/