netdev - Re: [PATCH] ipv4: panic in leaf_walk

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Message-Id: <20160803.120143.377608139981878642.davem@davemloft.net>
Date:	Wed, 03 Aug 2016 12:01:43 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dforster@...cade.com
Cc:	netdev@...r.kernel.org, alexander.duyck@...il.com
Subject: Re: [PATCH] ipv4: panic in leaf_walk_rcu due to stale node pointer

From: David Forster <dforster@...cade.com>
Date: Wed, 3 Aug 2016 15:13:01 +0100

> Panic occurs when issuing "cat /proc/net/route" whilst
> populating FIB with > 1M routes.
> 
> Use of cached node pointer in fib_route_get_idx is unsafe.
 ...
> Signed-off-by: Dave Forster <dforster@...cade.com>

Alexander, please review.

Thanks.