Messages in this thread | | | Date | Sat, 19 May 2001 10:58:46 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: Why side-effects on open(2) are evil. (was Re: [RFD w/info-PATCH] device arguments from lookup) |
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On Sat, 19 May 2001 Andries.Brouwer@cwi.nl wrote:
> > A lot of stuff relies on the fact that close(open(foo, O_RDONLY)) > > is a no-op. Breaking that assumption is a Bad Thing(tm). > > Also here I would like to agree. Unfortunately this is false. > Opening device files often has interesting side effects.
Too bad. They can be triggered by similar races between attacker changing the type of object (file<->symlink) and backup.
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