Re: Exporting 'sys_call_table' in linux-2.6.20

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On Tue, Jan 29, 2008 at 12:58:27PM +0530, Chetan Nanda wrote:
> Hi,
> 
> If I need to modify "sys_call_table" entries at run time (using
> loadable module), Can I do that in 2.6.20 kernel.

No, you _NEVER_ want to modify the system call table from a module or at
run time.  To do so means that you are probably a root kit, or from a
vendor that doesn't want to open up their source code.

Remember, hooking syscalls, it's not only a bad idea, it's trivial to
circumvent from userspace :)

Why do you feel you need to modify this table?

thanks,

greg k-h

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