Messages in this thread | | | Date | Sun, 6 Oct 2013 00:24:51 +0100 | From | Al Viro <> | Subject | Re: [RFC][PATCH 0/3] vfs: Detach mounts on unlink. |
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On Sat, Oct 05, 2013 at 04:17:55PM -0700, Linus Torvalds wrote: > On Sat, Oct 5, 2013 at 4:07 PM, Rob Landley <rob@landley.net> wrote: > > > > A todo item I've had _forever_ is fixing chroot() to not be broken so that > > you can trivially break out of a chroot via: > > What drugs are you on? > > Your example is moronic, and against all _documented_ uses of chroot.
... and even fixing that example (chroot *can* be escaped, if you can call chroot(2) - mkdir /foo, chdir /, chroot /foo, chroot .. and you are out) the whole thing is idiocy - chroot() is not and has never been root-proof and anybody expecting it to be has failed to read any number of FAQs out there.
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