Messages in this thread | | | Date | Tue, 25 Sep 2007 16:53:00 -0400 | From | Phillip Susi <> | Subject | Re: sys_chroot+sys_fchdir Fix |
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Alan Cox wrote: > On Fri, 21 Sep 2007 13:39:34 -0400 > Phillip Susi <psusi@cfl.rr.com> wrote: > >> David Newall wrote: >>> * In particular, the superuser can escape from a =91chroot jail=92 by d= >>> oing=20 >>> =91mkdir foo; chroot foo; cd ..=92. >> No, he can not. > > The superuser can escape that way - its expected and fine behaviour
Does not work for me, and that would be the EXACT thing chroot is supposed to prevent. Maybe you guys are thinking of a program that calls chroot() but leaves cwd outside the chroot still being able to navigate outside of it?
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