[syzbot] Monthly serial report (Dec 2025)

[syzbot]

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, 0 new issues were detected and 0 were fixed.
In total, 17 issues are still open and 45 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  3201    Yes   possible deadlock in console_lock_spinning_enable (5)
                   https://syzkaller.appspot.com/bug?extid=622acb507894a48b2ce9
<2>  2565    Yes   KMSAN: uninit-value in n_tty_receive_buf_standard
                   https://syzkaller.appspot.com/bug?extid=559c7fe4b8bac56d38c2
<3>  1163    Yes   BUG: soft lockup in tx
                   https://syzkaller.appspot.com/bug?extid=5e87db90e68fbc4707c6
<4>  257     Yes   KASAN: slab-use-after-free Read in tty_write_room (2)
                   https://syzkaller.appspot.com/bug?extid=2a81fdd5c6ddffee3894
<5>  232     Yes   INFO: task can't die in show_free_areas
                   https://syzkaller.appspot.com/bug?extid=8f41dccfb6c03cc36fd6
<6>  235     Yes   KMSAN: uninit-value in n_tty_receive_buf_closing (3)
                   https://syzkaller.appspot.com/bug?extid=dd514b5f0cf048aec256
<7>  120     Yes   possible deadlock in tty_buffer_flush (3)
                   https://syzkaller.appspot.com/bug?extid=52cf91760dcb1dac6376
<8>  47      No    KMSAN: uninit-value in n_tty_lookahead_flow_ctrl (2)
                   https://syzkaller.appspot.com/bug?extid=290abdcd4f509377a0eb
<9>  18      Yes   INFO: rcu detected stall in console_callback
                   https://syzkaller.appspot.com/bug?extid=32af18ae7b894a681f2d
<10> 2       Yes   memory leak in gsm_activate_mux
                   https://syzkaller.appspot.com/bug?extid=b5d1f455d385b2c7da3c

---
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 syzkaller@xxxxxxxxxxxxxxxx.

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.