netdev - Re: Reminder: 99 open syzbot bugs in net subsystem

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Date:   Thu, 25 Jul 2019 07:04:47 +0200
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     David Miller <davem@...emloft.net>, eric.dumazet@...il.com,
        dvyukov@...gle.com, netdev@...r.kernel.org, fw@...len.de,
        i.maximets@...sung.com, edumazet@...gle.com, dsahern@...il.com,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: Reminder: 99 open syzbot bugs in net subsystem



On 7/24/19 11:09 PM, Eric Biggers wrote:
> On Wed, Jul 24, 2019 at 01:09:28PM -0700, David Miller wrote:
>> From: Eric Biggers <ebiggers@...nel.org>
>> Date: Wed, 24 Jul 2019 11:37:12 -0700
>>
>>> We can argue about what words to use to describe this situation, but
>>> it doesn't change the situation itself.
>>
>> And we should argue about those words because it matters to humans and
>> effects how they feel, and humans ultimately fix these bugs.
>>
>> So please stop with the hyperbole.
>>
>> Thank you.
> 
> Okay, there are 151 bugs that syzbot saw on the mainline Linux kernel in the
> last 7 days (90.1% with reproducers).  Of those, 59 were reported over 3 months
> ago (89.8% with reproducers).  Of those, 12 were reported over a year ago (83.3%
> with reproducers).
> 
> No opinion on whether those are small/medium/large numbers, in case it would
> hurt someone's feelings.
> 
> These numbers do *not* include bugs that are still valid but weren't seen on
> mainline in last 7 days, e.g.:
> 
> - Bugs that are seen only rarely, so by chance weren't seen in last 7 days.
> - Bugs only in linux-next and/or subsystem branches.
> - Bugs that were seen in mainline more than 7 days ago, and then only on
>   linux-next or subsystem branch in last 7 days.
> - Bugs that stopped being seen due to a change in syzkaller.
> - Bugs that stopped being seen due to a change in kernel config.
> - Bugs that stopped being seen due to other environment changes such as kernel
>   command line parameters.
> - Bugs that stopped being seen due to a kernel change that hid the bug but
>   didn't actually fix it, i.e. still reachable in other ways.
> 

We do not doubt syzkaller is an incredible tool.

But netdev@ and lkml@ are mailing lists for humans to interact,
exchange ideas, send patches and review them.

To me, an issue that was reported to netdev by a real user is _way_ more important
than potential issues that a bot might have found doing crazy things.

We need to keep optimal S/N on mailing lists, so any bots trying to interact
with these lists must be very cautious and damn smart.

When I have time to spare and can work on syzbot reports, I am going to a web
page where I can see them and select the ones it makes sense to fix.
I hate having to set up email filters.