netdev - Re: [PATCH net 0/9] net/sched: init failure fixes

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Date:   Thu, 31 Aug 2017 00:35:00 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Jamal Hadi Salim <jhs@...atatu.com>, netdev@...r.kernel.org
Cc:     edumazet@...gle.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        roopa@...ulusnetworks.com, Lucas Bates <lucasb@...atatu.com>
Subject: Re: [PATCH net 0/9] net/sched: init failure fixes

On 30/08/17 15:15, Jamal Hadi Salim wrote:
> On 17-08-30 05:48 AM, Nikolay Aleksandrov wrote:
>> Hi all,
>> I went over all qdiscs' init, destroy and reset callbacks and found the
>> issues fixed in each patch. Mostly they are null pointer dereferences due
>> to uninitialized timer (qdisc watchdog) or double frees due to ->destroy
>> cleaning up a second time. There's more information in each patch.
>> I've tested these by either sending wrong attributes from user-spaces, no
>> attributes or by simulating memory alloc failure where applicable. Also
>> tried all of the qdiscs as a default qdisc.
>>
>> Most of these bugs were present before commit 87b60cfacf9f, I've tried to
>> include proper fixes tags in each patch.
>>
>> I haven't included individual patch acks in the set, I'd appreciate it if
>> you take another look and resend them.
>>
> 
> 
> Hi Nik,
> 
> For all patches:
> 
> Acked-by: Jamal Hadi Salim <jhs@...atatu.com>
> 
> Would you please consider adding all the the tests
> you used to create the oopses in selftests? It will ensure this
> embarassing bugs get caught should they ever happen again.
> If you need help ping Lucas on Cc.
> 
> cheers,
> jamal

Hi,
Sure, I'll make the tests and send patches for tc selftests, using the infra at
tools/testing/selftests/tc-testing.

Thanks!