netdev - Re: [PATCH net] af_key: free SKBs under RCU protection

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Date:   Fri, 21 Sep 2018 12:44:23 -0600
From:   stranche@...eaurora.org
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     netdev@...r.kernel.org, steffen.klassert@...unet.com
Subject: Re: [PATCH net] af_key: free SKBs under RCU protection

On 2018-09-21 11:40, Eric Dumazet wrote:
> On 09/21/2018 10:09 AM, stranche@...eaurora.org wrote:
> 
>> I also tried reverting 7f6b9dbd5afb ("af_key: locking change") and 
>> running the
>> test there and I still see the crash, so it doesn't seem to be an RCU 
>> specific
>> issue.
>> 
>> Is there anything else that could be causing this?
> 
> What about you share your repro ?

Sure. Syzkaller reproducer source is attached.
View attachment "KASAN_use-after-free_Read_in_sock_rfree.c" of type "text/x-c" (32898 bytes)