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From: David Ahern <dsa@cumulusnetworks.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Cong Wang <xiyou.wangcong@gmail.com>,
	Mahesh Bandewar <maheshb@google.com>,
	Eric Dumazet <edumazet@google.com>,
	David Miller <davem@davemloft.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	James Morris <jmorris@namei.org>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Patrick McHardy <kaber@trash.net>,
	netdev <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone
Date: Fri, 21 Apr 2017 12:25:33 -0600	[thread overview]
Message-ID: <75e4e5bb-7ce9-9317-4aca-8be41a8161d7@cumulusnetworks.com> (raw)
In-Reply-To: <1492793238.6453.30.camel@edumazet-glaptop3.roam.corp.google.com>

On 4/21/17 10:47 AM, Eric Dumazet wrote:
> On Fri, 2017-04-21 at 08:27 -0600, David Ahern wrote:
>> On 4/20/17 10:09 AM, Andrey Konovalov wrote:
>>> On Thu, Apr 20, 2017 at 5:39 PM, Andrey Konovalov <andreyknvl@google.com> wrote:
>>>> On Thu, Apr 20, 2017 at 5:35 PM, David Ahern <dsa@cumulusnetworks.com> wrote:
>>>>> On 4/20/17 9:28 AM, Andrey Konovalov wrote:
>>>>>> This one seems to be much closer to what Dmitry reported intially.
>>>>> does not repro here; I ran in a loop and nothing.
>>> Here's strace log, maybe it'll help figuring out why it doesn't reproduce:
>>
>> reproduced. working on it.
> 
> Thanks guys for working on this ;)
> 


Reliable reproducer is the key.

I see what's going on - why the WARN_ON is hit; just looking for the
right fix.

  reply	other threads:[~2017-04-21 18:25 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03 14:39 net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Dmitry Vyukov
2017-03-03 19:12 ` David Ahern
2017-03-03 19:14   ` Dmitry Vyukov
2017-03-04 18:57   ` Dmitry Vyukov
2017-03-04 19:00     ` Dmitry Vyukov
2017-03-04 20:15     ` Eric Dumazet
2017-03-05 10:53       ` Dmitry Vyukov
2017-03-06 17:31       ` David Ahern
2017-03-06 18:51         ` Dmitry Vyukov
2017-03-06 23:41           ` David Ahern
2017-03-07  8:43             ` Dmitry Vyukov
2017-03-07  9:21               ` Dmitry Vyukov
2017-03-07 18:03                 ` David Ahern
2017-03-07 18:13                   ` Dmitry Vyukov
2017-03-07 18:43                     ` David Ahern
2017-03-07 19:02                       ` Dmitry Vyukov
2017-03-07 19:30                         ` Dmitry Vyukov
2017-03-07 20:00                           ` Dmitry Vyukov
2017-03-08 11:55                             ` Dmitry Vyukov
2017-03-27 12:42                               ` Dmitry Vyukov
2017-03-27 13:57                                 ` David Ahern
2017-03-27 14:23                                   ` Dmitry Vyukov
2017-04-18 20:43                                     ` Andrey Konovalov
2017-04-18 23:20                                       ` David Ahern
2017-04-19  1:09                                         ` Andrey Konovalov
2017-04-19 16:09                                       ` David Ahern
2017-04-19 16:12                                         ` Andrey Konovalov
2017-04-19 16:29                                           ` David Ahern
2017-04-19 23:47                                           ` Cong Wang
2017-04-19 23:51                                             ` David Ahern
2017-04-20  8:35                                               ` Dmitry Vyukov
2017-04-20 12:10                                                 ` Andrey Konovalov
2017-04-20 15:28                                                   ` Andrey Konovalov
2017-04-20 15:29                                                     ` Andrey Konovalov
2017-04-20 15:35                                                     ` David Ahern
2017-04-20 15:39                                                       ` Andrey Konovalov
2017-04-20 16:09                                                         ` Andrey Konovalov
2017-04-21 14:27                                                           ` David Ahern
2017-04-21 16:47                                                             ` Eric Dumazet
2017-04-21 18:25                                                               ` David Ahern [this message]
2017-04-25 15:51                                       ` David Ahern
2017-04-25 15:57                 ` David Ahern
2017-03-07 17:17               ` David Ahern
2017-03-07 17:45                 ` Dmitry Vyukov
2017-03-07 17:57               ` David Ahern
2017-04-25 15:56     ` David Ahern
2017-04-25 16:36       ` Andrey Konovalov
2017-04-25 16:38         ` Andrey Konovalov
2017-04-25 16:40           ` David Ahern

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