netdev - Re: [PATCH net] net: thunderx: fix NULL pointer dereference in nic

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Message-Id: <20181127.161916.1064966549359537523.davem@davemloft.net>
Date:   Tue, 27 Nov 2018 16:19:16 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     lorenzo.bianconi@...hat.com
Cc:     netdev@...r.kernel.org, Sunil.Goutham@...ium.com
Subject: Re: [PATCH net] net: thunderx: fix NULL pointer dereference in
 nic_remove

From: Lorenzo Bianconi <lorenzo.bianconi@...hat.com>
Date: Mon, 26 Nov 2018 15:07:16 +0100

> Fix a possible NULL pointer dereference in nic_remove routine
> removing the nicpf module if nic_probe fails.
> The issue can be triggered with the following reproducer:
> 
> $rmmod nicvf
> $rmmod nicpf
> 
> [  521.412008] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000014
 ...
> Fixes: 4863dea3fab0 ("net: Adding support for Cavium ThunderX network controller")
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@...hat.com>

Applied.