Re: /proc/sys/kernel/pid_max issues

From: Ingo Molnar (mingo_at_elte.hu)
Date: 09/12/04

  • Next message: Christoph Hellwig: "[PATCH] superflous do_softirq invocation in cris do_IRQ()" 
    Date:	Sun, 12 Sep 2004 13:20:26 +0200
To: William Lee Irwin III <wli@holomorphy.com>, Anton Blanchard <anton@samba.org>, linux-kernel@vger.kernel.org, viro@parcelfarce.linux.theplanet.co.uk

    * William Lee Irwin III <wli@holomorphy.com> wrote:

    > Forgot to check map->page in the first spin:
    >
    > last_pid is not honored because next_free_map(map - 1, ...) may return
    > the same map and so restart with a lesser offset.

    it's getting quite spaghetti ... do we really want to handle
    RESERVED_PID? There's no guarantee that any root daemon wont stray out
    of the 1...300 PID range anyway, so if it has an exploitable PID race
    bug then it's probably exploitable even without the RESERVED_PID
    protection.

            Ingo
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  • Next message: Christoph Hellwig: "[PATCH] superflous do_softirq invocation in cris do_IRQ()"

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