Messages in this thread | | | From | Al Boldi <> | Subject | Re: [PATCH 12/18] shared mount handling: bind and rbind | Date | Wed, 16 Nov 2005 08:35:28 +0300 |
| |
Linus Torvalds wrote: > This is why we have "pivot_root()" and "chroot()", which can both be used > to do what you want to do. You mount the new root somewhere else, and then > you chroot (or pivot-root) to it. And THEN you do 'chdir("/")' to move the > cwd into the new root too (and only at that point have you "lost" the old > root - although you can actually get it back if you have some file > descriptor open to it).
Wouldn't this constitute a security flaw?
Shouldn't chroot jail you?
-- Al
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |