Re: [PATCH] security_ops locking

Previous message: Chris Wright: "Re: new hook for do_sys_settimeofday"
In reply to: Jesse Pollard: "Re: [PATCH] security_ops locking"
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chrisat_private

* Jesse Pollard (pollardat_private) wrote:
> 
> Simple - it isn't true in any arch where the bus size is not equal to the
> pointer size (usually meaning "bus size is less than pointer size").

Yes, I did come across some embedded motorola processor with 32 bit word
and 16 bit bus.  The SMP issue is not the only issue.  Some of the hooks
are followed on interrupt, but it wasn't clear that on this processor
the interrupt could interrupt the store of the pointer.  My hunch is
many things would be broken if we couldn't expect a safe assignment.

thanks,
-chris
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Linux Security Modules     http://lsm.immunix.org     http://lsm.bkbits.net
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