Re: net/ipv6: null-ptr-deref in ip6_route_del/lock_acquire

From: Cong Wang
Date: Mon Feb 27 2017 - 15:45:45 EST


On Mon, Feb 27, 2017 at 12:05 PM, Andrey Konovalov
<andreyknvl@xxxxxxxxxx> wrote:
> On Mon, Feb 27, 2017 at 8:59 PM, David Ahern <dsa@xxxxxxxxxxxxxxxxxxx> wrote:
>> On 2/27/17 10:11 AM, Cong Wang wrote:
>>> The attached patch fixes this crash, but I am not sure if it is the
>>> best way to fix this bug yet...
>>
>> I'll take a look. I can not reproduce this using route or ip, so the
>> fuzzer is doing something interesting.
>
> Hi David,
>
> I've attached a simple reproducer to the report, it doesn't work for you?

It works for me and I have verified the formal patch I sent.