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From: Andi Kleen <andi@firstfloor.org>
To: oleg@redhat.com, linux-kernel@vger.kernel.org
Cc: torvalds@linux-foundation.org
Subject: BKL use in ptrace
Date: Sun, 20 Dec 2009 19:53:18 +0100	[thread overview]
Message-ID: <20091220185318.GA15989@basil.fritz.box> (raw)


Hi,

ptrace has this comment/BKL use:

        /*
         * This lock_kernel fixes a subtle race with suid exec
         */
        lock_kernel();

But unless I'm blind I don't see execve actually getting the BKL
anywhere. So is this comment outdated or misleading (is the race with exit?)
or is there a bug?

Thanks,
-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.

             reply	other threads:[~2009-12-20 18:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-20 18:53 Andi Kleen [this message]
2009-12-21 17:02 ` BKL use in ptrace Oleg Nesterov
2009-12-22  1:13   ` Roland McGrath

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