Messages in this thread | | | Date | Thu, 16 Jan 2003 13:58:43 +0100 | From | DervishD <> | Subject | Re: Changing argv[0] under Linux. |
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Hi Jon :)
> It is easy to do a mount() system call, the rootfs can be ro.
Yes, but you still need a mountpoint. Lot of worries for something as trivial and useless as changing the ps identity ;))
> > What if /proc/self/exe is not part form procfs, > > but from some evil user ;)) > Would the user not need root privilegdes to mess with /proc?
/proc/self/exe doesn't need to be in procfs... If proc is not mounted... Anyway it was just an example. The degree of evil-user intrusion in a machine for doing something like that is quite high. There are simpler ways of attacking a machine if you can forge /proc/self/exe :))
> Is there any good reason why init should not be executable > by root only?
My init refuses to run if not called by the superuser ;) because I think the same as you and anyway my init doesn't need a shutdown command, it works with a keycombo that root controls.
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