Re: Linux 2.1.115 oops (demo and fix)

From: Chris Wedgwood (chrisat_private)
Date: Thu Aug 13 1998 - 20:05:25 PDT

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    On Thu, Aug 13, 1998 at 07:02:40PM +0100, Duncan Simpson wrote:
    
    > 2.1.115 devpts contains a bug that can prevent you from unmounting
    > file systems and the exploit program sticks in uninteruptable sleep
    > until you reboot. It may be possible to trash kernel data
    > structures using the bug with difficulty. I have yet to both ends
    > of a pty using ptmx and devpts. I assume other version are
    > vulnerable too.
    
    [...]
    
    Why is this even on BugTraq?
    
    I assume almost everyone (including Aleph One) knows that 2.1.x is a
    _development_ kernel version so bug should be reported to
    linux-kernelat_private or security-auditat_private
    where hopefully somebody can and will deal with it in a timely
    fashion, and any fixes supplied will be greatfully accepted and
    verified by the kernel gurus.
    
    Anybody who runs 2.1.x on a production server and has it blow up or
    whatever, deserves what they get.
    
    In short, don't use 2.1.x for production/stable systems, use 2.0.x or
    wait for 2.2.x.
    
    Similar arguments apply to development releases of *BSD, etc.
    
    
    
    -Chris
    



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