linux-kernel - [syzbot] Monthly serial report (Jul 2025)

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Message-ID: <6881fdb9.a00a0220.2f88df.001c.GAE@google.com>
Date: Thu, 24 Jul 2025 02:32:41 -0700
From: syzbot <syzbot+listf09721d34cbf05dcddc5@...kaller.appspotmail.com>
To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org, 
	linux-serial@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: [syzbot] Monthly serial report (Jul 2025)

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, 1 new issues were detected and 0 were fixed.
In total, 19 issues are still open and 44 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 1359    Yes   KMSAN: uninit-value in n_tty_receive_buf_standard
                  https://syzkaller.appspot.com/bug?extid=559c7fe4b8bac56d38c2
<2> 196     Yes   INFO: task can't die in show_free_areas
                  https://syzkaller.appspot.com/bug?extid=8f41dccfb6c03cc36fd6
<3> 189     Yes   KASAN: slab-use-after-free Read in tty_write_room (2)
                  https://syzkaller.appspot.com/bug?extid=2a81fdd5c6ddffee3894
<4> 138     Yes   KMSAN: uninit-value in n_tty_receive_buf_closing (3)
                  https://syzkaller.appspot.com/bug?extid=dd514b5f0cf048aec256
<5> 96      Yes   BUG: soft lockup in tx
                  https://syzkaller.appspot.com/bug?extid=5e87db90e68fbc4707c6
<6> 77      Yes   possible deadlock in tty_buffer_flush (3)
                  https://syzkaller.appspot.com/bug?extid=52cf91760dcb1dac6376
<7> 24      No    KMSAN: uninit-value in n_tty_lookahead_flow_ctrl (2)
                  https://syzkaller.appspot.com/bug?extid=290abdcd4f509377a0eb
<8> 18      Yes   INFO: rcu detected stall in console_callback
                  https://syzkaller.appspot.com/bug?extid=32af18ae7b894a681f2d
<9> 17      No    general protection fault in n_tty_receive_buf_common (2)
                  https://syzkaller.appspot.com/bug?extid=2dda672e146ff12ccb02

---
This report is generated by a bot. It may contain errors.
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