Hello net maintainers/developers,
This is a 31-day syzbot report for the net subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/net
During the period, 5 new issues were detected and 13 were fixed.
In total, 77 issues are still open and 1358 have been fixed so far.
Some of the still happening issues:
Ref Crashes Repro Title
<1> 3878 Yes KMSAN: uninit-value in eth_type_trans (2)
https://syzkaller.appspot.com/bug?extid=0901d0cc75c3d716a3a3
<2> 892 Yes possible deadlock in __dev_queue_xmit (3)
https://syzkaller.appspot.com/bug?extid=3b165dac15094065651e
<3> 860 Yes INFO: task hung in switchdev_deferred_process_work (2)
https://syzkaller.appspot.com/bug?extid=8ecc009e206a956ab317
<4> 590 Yes INFO: task hung in rtnetlink_rcv_msg
https://syzkaller.appspot.com/bug?extid=8218a8a0ff60c19b8eae
<5> 390 Yes WARNING in kcm_write_msgs
https://syzkaller.appspot.com/bug?extid=52624bdfbf2746d37d70
<6> 373 Yes INFO: rcu detected stall in corrupted (4)
https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e
<7> 249 Yes INFO: rcu detected stall in tc_modify_qdisc
https://syzkaller.appspot.com/bug?extid=9f78d5c664a8c33f4cce
<8> 240 Yes BUG: corrupted list in p9_fd_cancelled (2)
https://syzkaller.appspot.com/bug?extid=1d26c4ed77bc6c5ed5e6
<9> 172 No INFO: task hung in linkwatch_event (3)
https://syzkaller.appspot.com/bug?extid=d4b2f8282f84f54e87a1
<10> 154 Yes WARNING in print_bfs_bug (2)
https://syzkaller.appspot.com/bug?extid=630f83b42d801d922b8b
---
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To disable reminders for individual bugs, reply with the following command:
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On Thu, Nov 23, 2023 at 8:12 AM syzbot
<[email protected]> wrote:
>
> Hello net maintainers/developers,
>
> This is a 31-day syzbot report for the net subsystem.
> All related reports/information can be found at:
> https://syzkaller.appspot.com/upstream/s/net
>
Hi,
Could you please Cc the stakeholders for each issue (especially when
there is a reproducer)? Not everybody reads every single message that
shows up in the kernel.
cheers,
jamal
> During the period, 5 new issues were detected and 13 were fixed.
> In total, 77 issues are still open and 1358 have been fixed so far.
>
> Some of the still happening issues:
>
> Ref Crashes Repro Title
> <1> 3878 Yes KMSAN: uninit-value in eth_type_trans (2)
> https://syzkaller.appspot.com/bug?extid=0901d0cc75c3d716a3a3
> <2> 892 Yes possible deadlock in __dev_queue_xmit (3)
> https://syzkaller.appspot.com/bug?extid=3b165dac15094065651e
> <3> 860 Yes INFO: task hung in switchdev_deferred_process_work (2)
> https://syzkaller.appspot.com/bug?extid=8ecc009e206a956ab317
> <4> 590 Yes INFO: task hung in rtnetlink_rcv_msg
> https://syzkaller.appspot.com/bug?extid=8218a8a0ff60c19b8eae
> <5> 390 Yes WARNING in kcm_write_msgs
> https://syzkaller.appspot.com/bug?extid=52624bdfbf2746d37d70
> <6> 373 Yes INFO: rcu detected stall in corrupted (4)
> https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e
> <7> 249 Yes INFO: rcu detected stall in tc_modify_qdisc
> https://syzkaller.appspot.com/bug?extid=9f78d5c664a8c33f4cce
> <8> 240 Yes BUG: corrupted list in p9_fd_cancelled (2)
> https://syzkaller.appspot.com/bug?extid=1d26c4ed77bc6c5ed5e6
> <9> 172 No INFO: task hung in linkwatch_event (3)
> https://syzkaller.appspot.com/bug?extid=d4b2f8282f84f54e87a1
> <10> 154 Yes WARNING in print_bfs_bug (2)
> https://syzkaller.appspot.com/bug?extid=630f83b42d801d922b8b
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at [email protected].
>
> To disable reminders for individual bugs, reply with the following command:
> #syz set <Ref> no-reminders
>
> To change bug's subsystems, reply with:
> #syz set <Ref> subsystems: new-subsystem
>
> You may send multiple commands in a single email message.
>
On Thu, 23 Nov 2023 05:12:23 -0800 syzbot wrote:
> <8> 240 Yes BUG: corrupted list in p9_fd_cancelled (2)
> https://syzkaller.appspot.com/bug?extid=1d26c4ed77bc6c5ed5e6
One nit - p9 is not really net.
Thanks again for restarting the reports!
On Sat, Nov 25, 2023 at 3:28 AM Jakub Kicinski <[email protected]> wrote:
>
> On Thu, 23 Nov 2023 05:12:23 -0800 syzbot wrote:
> > <8> 240 Yes BUG: corrupted list in p9_fd_cancelled (2)
> > https://syzkaller.appspot.com/bug?extid=1d26c4ed77bc6c5ed5e6
>
> One nit - p9 is not really net.
At least it's not reflected in MAINTAINERS:
$ ./scripts/get_maintainer.pl --nom --nor ./net/9p/
[email protected] (open list:9P FILE SYSTEM)
[email protected] (open list:NETWORKING [GENERAL])
[email protected] (open list)
Maybe it could be worth it to add "X: net/9p/" to "NETWORKING [GENERAL]"?
Syzbot would then eventually also pick up the change.
--
Aleksandr
>
> Thanks again for restarting the reports!
>
On Tue, 28 Nov 2023 15:54:00 +0100 Aleksandr Nogikh wrote:
> Maybe it could be worth it to add "X: net/9p/" to "NETWORKING [GENERAL]"?
> Syzbot would then eventually also pick up the change.
Good point, sent.
Hi Jamal,
This sounds interesting, thanks for the suggestion!
It would be a lot of emails though, so maybe we could randomly pick a
few of them each time.
I've filed https://github.com/google/syzkaller/issues/4369
--
Aleksandr
On Thu, Nov 23, 2023 at 3:03 PM Jamal Hadi Salim <[email protected]> wrote:
>
> On Thu, Nov 23, 2023 at 8:12 AM syzbot
> <[email protected]> wrote:
> >
> > Hello net maintainers/developers,
> >
> > This is a 31-day syzbot report for the net subsystem.
> > All related reports/information can be found at:
> > https://syzkaller.appspot.com/upstream/s/net
> >
>
> Hi,
> Could you please Cc the stakeholders for each issue (especially when
> there is a reproducer)? Not everybody reads every single message that
> shows up in the kernel.
>
> cheers,
> jamal
>
> > During the period, 5 new issues were detected and 13 were fixed.
> > In total, 77 issues are still open and 1358 have been fixed so far.
> >
> > Some of the still happening issues:
> >
> > Ref Crashes Repro Title
> > <1> 3878 Yes KMSAN: uninit-value in eth_type_trans (2)
> > https://syzkaller.appspot.com/bug?extid=0901d0cc75c3d716a3a3
> > <2> 892 Yes possible deadlock in __dev_queue_xmit (3)
> > https://syzkaller.appspot.com/bug?extid=3b165dac15094065651e
> > <3> 860 Yes INFO: task hung in switchdev_deferred_process_work (2)
> > https://syzkaller.appspot.com/bug?extid=8ecc009e206a956ab317
> > <4> 590 Yes INFO: task hung in rtnetlink_rcv_msg
> > https://syzkaller.appspot.com/bug?extid=8218a8a0ff60c19b8eae
> > <5> 390 Yes WARNING in kcm_write_msgs
> > https://syzkaller.appspot.com/bug?extid=52624bdfbf2746d37d70
> > <6> 373 Yes INFO: rcu detected stall in corrupted (4)
> > https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e
> > <7> 249 Yes INFO: rcu detected stall in tc_modify_qdisc
> > https://syzkaller.appspot.com/bug?extid=9f78d5c664a8c33f4cce
> > <8> 240 Yes BUG: corrupted list in p9_fd_cancelled (2)
> > https://syzkaller.appspot.com/bug?extid=1d26c4ed77bc6c5ed5e6
> > <9> 172 No INFO: task hung in linkwatch_event (3)
> > https://syzkaller.appspot.com/bug?extid=d4b2f8282f84f54e87a1
> > <10> 154 Yes WARNING in print_bfs_bug (2)
> > https://syzkaller.appspot.com/bug?extid=630f83b42d801d922b8b
> >
> > ---
> > This report is generated by a bot. It may contain errors.
> > See https://goo.gl/tpsmEJ for more information about syzbot.
> > syzbot engineers can be reached at [email protected].
> >
> > To disable reminders for individual bugs, reply with the following command:
> > #syz set <Ref> no-reminders
> >
> > To change bug's subsystems, reply with:
> > #syz set <Ref> subsystems: new-subsystem
> >
> > You may send multiple commands in a single email message.
> >
>
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