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Date:      Wed, 22 Oct 1997 19:02:25 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        freebsd-hackers@FreeBSD.ORG (FreeBSD hackers)
Subject:   Re: Possible SERIOUS bug in open()?
Message-ID:  <19971022190225.DV50844@uriah.heep.sax.de>
In-Reply-To: <Pine.BSF.3.96.971022013546.8389A-100000@trojanhorse.ml.org>; from Jamil J. Weatherbee on Oct 22, 1997 01:38:11 -0700
References:  <19971022093040.UM28723@uriah.heep.sax.de> <Pine.BSF.3.96.971022013546.8389A-100000@trojanhorse.ml.org>

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As Jamil J. Weatherbee wrote:

> > > This was sent to me recently...  It seems to be a pretty serious hole
> > > in open() and permissions...
> > 
> > Fixed.
> 
> How exactly did you fix it, this is related to what I was saying about
> opening a file as RD_ONLY and WR_ONLY, ...

Yep, this was in the same boat.  The way the fix works, only one of
O_RDONLY, O_WRONLY, or O_RDWR should be possible now, and anything
else should be rejected as EINVAL.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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