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From: Roland McGrath <roland@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
	Andrew Tridgell <tridge@samba.org>,
	David Howells <dhowells@redhat.com>,
	Eric Paris <eparis@parisplace.org>,
	Jakub Jelinek <jakub@redhat.com>,
	James Morris <jmorris@namei.org>,
	Stephen Smalley <sds@tycho.nsa.gov>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] signals: check_kill_permission: don't check creds if same_thread_group()
Date: Thu, 20 May 2010 13:02:25 -0700 (PDT)	[thread overview]
Message-ID: <20100520200225.A01E4403F1@magilla.sf.frob.com> (raw)
In-Reply-To: Andrew Morton's message of  Thursday, 20 May 2010 12:42:14 -0700 <20100520124214.2ac81a21.akpm@linux-foundation.org>

> So... which kernel(s) do we think this fix should be merged into?

I'd say all.  The glibc (libpthread) that does set*id across threads has
been in use for a while (2.3.4?), probably in distro's using kernels as old
or older than any active -stable streams.  In the race in question, this
kernel bug is breaking valid POSIX application expectations.


Thanks,
Roland

      reply	other threads:[~2010-05-20 20:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-17 19:54 [PATCH] signals: check_kill_permission: don't check creds if same_thread_group() Oleg Nesterov
2010-05-18  1:25 ` Roland McGrath
2010-05-18  8:55 ` David Howells
2010-05-18 13:39   ` Oleg Nesterov
2010-05-18 13:50     ` David Howells
2010-05-18 14:08       ` Oleg Nesterov
2010-05-20 19:42 ` Andrew Morton
2010-05-20 20:02   ` Roland McGrath [this message]

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