Messages in this thread | | | Date | Thu, 17 Dec 2009 18:14:47 +0100 | From | Andi Kleen <> | Subject | Re: [PATCH] Security: Add prctl(PR_{GET,SET}_NETWORK) interface. |
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> This is not very good because in some situations it is useful to disable > connect() and bind() while still allowing ptracing of other processes. For > example, Plash creates a new UID for each sandbox and it is possible to use > strace and gdb inside a sandbox. Currently Plash is not able to block > network access or allow only limited network access. If you treat ptrace() > this way we won't have the ability to use strace and gdb while limiting > network access.
No that's not what the hunk does. I first thought the same. But it actually just limits these processes from initiating ptracing themselves. You can still attach gdb/strace to them.
Now I'm not sure if that's closing all holes, but at least I can't come up with any obvious ones currently. I think I would still prefer a more general security container in general.
-Andi -- ak@linux.intel.com -- Speaking for myself only.
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