Re: 2.6.9-rc2-mm4-VP-S7 - ksoftirq and selinux oddity

[Stephen Smalley]

On Fri, 2004-10-08 at 05:31, Luke Kenneth Casson Leighton wrote:
>  an alternative possible solution is to get the packet _out_ from
>  the interrupt context and have the aux pid comm exe information added.

No, the network permission checks are intentionally layered to match the
network protocol implementation.  There is a process-to-socket check
performed in process context when the data is received from the socket
by an actual process, but there is also the socket-to-netif/node/port
check performed in softirq context when the packet is received on the
socket from the network.

-- 
Stephen Smalley <sds@xxxxxxxxxxxxxx>
National Security Agency

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