Re: /proc filesystem allows bypassing directory permissions on

看板Bugtraq作者時間16年前 (2009/11/05 02:01), 編輯推噓0(000)
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On Wed 2009-11-04 09:06:25, Gabor Gombas wrote: > On Wed, Nov 04, 2009 at 10:17:13AM +1100, psz@maths.usyd.edu.au wrote: > > > But, mount requires root (and root can do anything, including shooting > > himself in the foot). > > Irrelevant. The statement was that if /proc is not mounted, then the > link count tells if there are other ways to access the inode besides the > path you have used to access it. I showed you that this statement is > false. Heck, root can create hardlink and then manually drop link count back to 1 -- for example using debugfs. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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