Subject: Re: security/7060: find and rm
To: None <richard.earnshaw@arm.com>
From: Chris Jones <cjones@rupert.honors.montana.edu>
List: netbsd-bugs
Date: 03/01/1999 10:10:57
>>>>> "Richard" == Richard Earnshaw <rearnsha@arm.com> writes:
Richard> So combine this with Dave's idea of a chdir. Then all that
Richard> unlink needs to be passed is the file in the current
Richard> directory (rather than the path). If the stat isn't done
Richard> until after the chdir then nothing that is unsafe can be
Richard> changed between the stat and the unlink -- I am correct in
Richard> thinking that unlink doesn't need an absolute pathname aren't
Richard> I (it works on slowlaris), or does unlink add the current
Richard> directory before passing it into the kernel?
Hmm; I think that would work, assuming that we can be sure that the
chdir() is safe. And no, unlink doesn't change its pathname to a
fully-qualified one, as far as I can tell.
Chris
--
-----------------------------------------------------cjones@math.montana.edu
Chris Jones cjones@honors.montana.edu
Mad scientist at large cjones@nervana.montana.edu
"Is this going to be a stand-up programming session, sir, or another bug hunt?"