[lkml]   [2002]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: prevent breaking a chroot() jail?

> I'm trying to develop a way to ensure that one can't break out of a
> chroot() jail, even as root. I'm willing to change the way the syscalls
> work (most likely only for a subset of processes, i.e. processes that
> are run in the jail end up getting a marker which is passed down to all
> their children that causes the syscalls to behave differently).
> What should I be aware of? I figure devices (no need to run mknod in
> this jail) and chroot (as per man page), is there any other way of
> breaking the chroot jail (at a syscall level or otherwise)?, or UML. Its hard to do with chroot(). Think
kill(-9, -1).
Worst form of spam? Adding advertisment signatures ala
What goes next? Inserting advertisment *into* email?
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:22    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean