netdev - Re: [PATCH net v2] ipv6: Handle race in addrconf_dad

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Date:   Wed, 2 Oct 2019 14:08:41 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     David Ahern <dsahern@...nel.org>, davem@...emloft.net,
        jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, rajendra.dendukuri@...adcom.com,
        David Ahern <dsahern@...il.com>
Subject: Re: [PATCH net v2] ipv6: Handle race in addrconf_dad_work



On 10/1/19 11:18 AM, Eric Dumazet wrote:
> 
> 
> On 9/30/19 8:28 PM, David Ahern wrote:
>> From: David Ahern <dsahern@...il.com>
>>
>> Rajendra reported a kernel panic when a link was taken down:
>>
>> [ 6870.263084] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a8
>> [ 6870.271856] IP: [<ffffffff8efc5764>] __ipv6_ifa_notify+0x154/0x290
>>
>> <snip>
>>
> 
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>
> 
> Thanks !
> 

Apparently this patch causes problems. I yet have to make an analysis.