Hello serial maintainers/developers,
This is a 31-day syzbot report for the serial subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/serial
During the period, 3 new issues were detected and 0 were fixed.
In total, 16 issues are still open and 40 have been fixed so far.
Some of the still happening issues:
Ref Crashes Repro Title
<1> 51656 Yes possible deadlock in console_flush_all (2)
https://syzkaller.appspot.com/bug?extid=f78380e4eae53c64125c
<2> 4747 Yes BUG: sleeping function called from invalid context in console_lock (2)
https://syzkaller.appspot.com/bug?extid=dbac96d8e73b61aa559c
<3> 207 Yes KMSAN: uninit-value in n_tty_receive_buf_standard
https://syzkaller.appspot.com/bug?extid=559c7fe4b8bac56d38c2
<4> 121 Yes KASAN: stack-out-of-bounds Read in sched_show_task
https://syzkaller.appspot.com/bug?extid=8d2757d62d403b2d9275
<5> 73 Yes general protection fault in serial8250_tx_chars
https://syzkaller.appspot.com/bug?extid=837b8c9032c053262db8
<6> 60 Yes BUG: soft lockup in tx
https://syzkaller.appspot.com/bug?extid=5e87db90e68fbc4707c6
<7> 36 Yes INFO: task can't die in show_free_areas
https://syzkaller.appspot.com/bug?extid=8f41dccfb6c03cc36fd6
<8> 6 Yes INFO: task hung in paste_selection (2)
https://syzkaller.appspot.com/bug?extid=275e275bd3f536725dd8
<9> 2 No KASAN: slab-use-after-free Read in tty_write_room (2)
https://syzkaller.appspot.com/bug?extid=2a81fdd5c6ddffee3894
---
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.
Hi Hillf,
* syzbot <[email protected]> [700101 02:00]:
> <5> 73 Yes general protection fault in serial8250_tx_chars
> https://syzkaller.appspot.com/bug?extid=837b8c9032c053262db8
Can you please send your earlier fix [0] to the linux-serial mailing list
so it can be applied?
Not quite sure what triggers the serial_port_remove().. But let's fix the
serial_port_runtime_resume() issue first.
Regards,
Tony
[0] https://groups.google.com/g/syzkaller-bugs/c/m3vOaJRjnMs