Re: [Patch net] ipv6: fix a potential deadlock in do_ipv6_setsockopt()

[Cong Wang]

On Wed, Oct 19, 2016 at 4:38 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
>> diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
>> index 46ad699..b8c8d20 100644
>> --- a/net/ipv6/af_inet6.c
>> +++ b/net/ipv6/af_inet6.c
>> @@ -414,7 +414,9 @@ int inet6_release(struct socket *sock)
>>               return -EINVAL;
>>
>>       /* Free mc lists */
>> +     rtnl_lock();
>
> Certainly not.
>
> Some people want IPv6 being reasonably fast.

Oh, good catch, I should move the 'if' check out too...