Messages in this thread | | | From | (Miquel van Smoorenburg) | Subject | Re: ext2 attribute immutable | Date | Tue, 2 Apr 1996 19:33:50 +0200 (MET DST) |
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In article <m0u3rUL-0004CeC@a4dialup-3.ed.ac.uk>, <sct@dcs.ed.ac.uk> wrote: >However, one thing which could be done fairly easily would be to (a) >protect init from all attacks, making it immune to ptrace, kill -9 >etc; and (b) disable all direct kernel access (such as /dev/mem or >loading new kernel modules) once securelev is sufficiently high.
(a) is already in the kernel; you can't PTRACE_ATTACH to init and neither can you kill it with -9. The only way to kill it is to find some bug in init and try to take advantage of it so that it crashes ;)
Mike. -- + Miquel van Smoorenburg + Cistron Internet Services + Living is a | | miquels@cistron.nl (SP6) | Independent Dutch ISP | horizontal | + miquels@drinkel.ow.org + http://www.cistron.nl/ + fall +
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