netdev - Re: [PATCH net-next 0/2] net: ipv4: fix circular-list infinite loop

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Date:   Sun, 30 Jun 2019 07:56:48 +0000
From:   Tariq Toukan <tariqt@...lanox.com>
To:     David Miller <davem@...emloft.net>, "fw@...len.de" <fw@...len.de>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Ran Rozenstein <ranro@...lanox.com>,
        Tariq Toukan <tariqt@...lanox.com>
Subject: Re: [PATCH net-next 0/2] net: ipv4: fix circular-list infinite loop



On 6/27/2019 7:54 PM, David Miller wrote:
> From: Florian Westphal <fw@...len.de>
> Date: Thu, 27 Jun 2019 14:03:31 +0200
> 
>> Tariq and Ran reported a regression caused by net-next commit
>> 2638eb8b50cf ("net: ipv4: provide __rcu annotation for ifa_list").
>>
>> This happens when net.ipv4.conf.$dev.promote_secondaries sysctl is
>> enabled -- we can arrange for ifa->next to point at ifa, so next
>> process that tries to walk the list loops forever.
>>
>> Fix this and extend rtnetlink.sh with a small test case for this.
> 
> Series applied, thanks Florian.
> 

Thanks Florian!

Ran, please test and update.

Tariq