From: Stephen Hemminger <[email protected]>
Date: Tue, 14 Aug 2012 08:19:33 -0700

> Alternative solution for problem found by Linux Driver Verification
> project (linuxtesting.org).
> 
> As it noted in the comment before the br_handle_frame_finish
> function, this function should be called under rcu_read_lock.
> 
> The problem callgraph:
> br_dev_xmit -> br_nf_pre_routing_finish_bridge_slow ->
>  -> br_handle_frame_finish -> br_port_get_rcu -> rcu_dereference
> 
> And in this case there is no read-lock section.
> 
> Reported-by: Denis Efremov <[email protected]>
> Signed-off-by: Stephen Hemminger <[email protected]>

Applied, thanks Stephen.

Please CC: this to netdev next time.  It's in a grey area whether I or
the netfilter folks should apply this one, and here I'm deciding to
take care of it.

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