On Tue, Oct 3, 2017 at 9:06 AM, Dmitry Vyukov wrote:
> On Tue, Oct 3, 2017 at 5:38 PM, 'Eric Dumazet' via syzkaller
> wrote:
>> On Tue, Oct 3, 2017 at 8:19 AM, Dmitry Vyukov wrote:
>>> On Mon, Oct 2, 2017 at 4:42 PM, 'Eric Dumazet' via syzkaller
>>> wrote:
On Mon, Oct 2, 2017 at 7:21 AM, M
On Tue, Oct 3, 2017 at 5:38 PM, 'Eric Dumazet' via syzkaller
wrote:
> On Tue, Oct 3, 2017 at 8:19 AM, Dmitry Vyukov wrote:
>> On Mon, Oct 2, 2017 at 4:42 PM, 'Eric Dumazet' via syzkaller
>> wrote:
>>> On Mon, Oct 2, 2017 at 7:21 AM, Mark Rutland wrote:
Hi Eric,
On Mon, Oct 02, 20
On Tue, Oct 3, 2017 at 8:19 AM, Dmitry Vyukov wrote:
> On Mon, Oct 2, 2017 at 4:42 PM, 'Eric Dumazet' via syzkaller
> wrote:
>> On Mon, Oct 2, 2017 at 7:21 AM, Mark Rutland wrote:
>>> Hi Eric,
>>>
>>> On Mon, Oct 02, 2017 at 06:36:32AM -0700, Eric Dumazet wrote:
On Mon, Oct 2, 2017 at 3:49
On Mon, Oct 2, 2017 at 4:42 PM, 'Eric Dumazet' via syzkaller
wrote:
> On Mon, Oct 2, 2017 at 7:21 AM, Mark Rutland wrote:
>> Hi Eric,
>>
>> On Mon, Oct 02, 2017 at 06:36:32AM -0700, Eric Dumazet wrote:
>>> On Mon, Oct 2, 2017 at 3:49 AM, Mark Rutland wrote:
>>> > I hit the below splat at net/cor
On Mon, Oct 02, 2017 at 10:27:15AM -0700, Eric Dumazet wrote:
> On Mon, Oct 2, 2017 at 10:21 AM, Mark Rutland wrote:
> > On Mon, Oct 02, 2017 at 07:48:28AM -0700, Eric Dumazet wrote:
> >> Please try the following fool proof patch.
> >>
> >> This is what I had in my local tree back in August but co
On Mon, Oct 2, 2017 at 10:21 AM, Mark Rutland wrote:
> On Mon, Oct 02, 2017 at 07:48:28AM -0700, Eric Dumazet wrote:
>> Please try the following fool proof patch.
>>
>> This is what I had in my local tree back in August but could not
>> conclude on the syzkaller bug I was working on.
>>
>> diff --
On Mon, Oct 02, 2017 at 07:48:28AM -0700, Eric Dumazet wrote:
> Please try the following fool proof patch.
>
> This is what I had in my local tree back in August but could not
> conclude on the syzkaller bug I was working on.
>
> diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
> index
> 681e33998e
On Mon, Oct 02, 2017 at 07:48:28AM -0700, Eric Dumazet wrote:
> Please try the following fool proof patch.
>
> This is what I had in my local tree back in August but could not
> conclude on the syzkaller bug I was working on.
Thanks, I'll give this a go shortly.
I'm currently minimizing the Syzk
On Mon, Oct 02, 2017 at 07:42:17AM -0700, Eric Dumazet wrote:
> On Mon, Oct 2, 2017 at 7:21 AM, Mark Rutland wrote:
> > Just to check I've understood correctly, are you suggesting that the
> > IPv4 code should also check the dev->mtu against a IP_MIN_MTU (which
> > doesn't seem to exist today)?
>
On Mon, 2017-10-02 at 15:21 +0100, Mark Rutland wrote:
> Hi Eric,
>
> On Mon, Oct 02, 2017 at 06:36:32AM -0700, Eric Dumazet wrote:
> > On Mon, Oct 2, 2017 at 3:49 AM, Mark Rutland wrote:
> > > I hit the below splat at net/core/skbuff.c:2626 while fuzzing v4.14-rc2
> > > on arm64 with Syzkaller.
On Mon, Oct 2, 2017 at 7:21 AM, Mark Rutland wrote:
> Hi Eric,
>
> On Mon, Oct 02, 2017 at 06:36:32AM -0700, Eric Dumazet wrote:
>> On Mon, Oct 2, 2017 at 3:49 AM, Mark Rutland wrote:
>> > I hit the below splat at net/core/skbuff.c:2626 while fuzzing v4.14-rc2
>> > on arm64 with Syzkaller. This i
Hi Eric,
On Mon, Oct 02, 2017 at 06:36:32AM -0700, Eric Dumazet wrote:
> On Mon, Oct 2, 2017 at 3:49 AM, Mark Rutland wrote:
> > I hit the below splat at net/core/skbuff.c:2626 while fuzzing v4.14-rc2
> > on arm64 with Syzkaller. This is the BUG_ON(len) at the end of
> > skb_copy_and_csum_bits().
On Mon, Oct 2, 2017 at 3:49 AM, Mark Rutland wrote:
> Hi all,
>
> I hit the below splat at net/core/skbuff.c:2626 while fuzzing v4.14-rc2
> on arm64 with Syzkaller. This is the BUG_ON(len) at the end of
> skb_copy_and_csum_bits().
>
> I've uploaded a copy of the splat, my config, and (full) Syzkal
Hi all,
I hit the below splat at net/core/skbuff.c:2626 while fuzzing v4.14-rc2
on arm64 with Syzkaller. This is the BUG_ON(len) at the end of
skb_copy_and_csum_bits().
I've uploaded a copy of the splat, my config, and (full) Syzkaller log
to my kernel.org web space [1]. I haven't had the opportu
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