BUG: sleeping function called from invalid context at kernel/printk/printk.c:2634
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 23, name: kworker/1:0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by kworker/1:0/23:
 #0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78c/0x15f0 kernel/workqueue.c:2611
 #1: ffffc900001d7d80 ((work_completion)(&gsm->tx_work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x15f0 kernel/workqueue.c:2612
 #2: ffff8880216123e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write_task+0x2e/0x1040 drivers/tty/n_gsm.c:3494
irq event stamp: 713460
hardirqs last  enabled at (713459): [<ffffffff8a8572b3>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (713459): [<ffffffff8a8572b3>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
hardirqs last disabled at (713460): [<ffffffff8a8570de>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (713460): [<ffffffff8a8570de>] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162
softirqs last  enabled at (713342): [<ffffffff88e90963>] local_bh_enable include/linux/bottom_half.h:33 [inline]
softirqs last  enabled at (713342): [<ffffffff88e90963>] update_defense_level+0x5e3/0xfb0 net/netfilter/ipvs/ip_vs_ctl.c:210
softirqs last disabled at (713340): [<ffffffff88e9044f>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (713340): [<ffffffff88e9044f>] update_defense_level+0xcf/0xfb0 net/netfilter/ipvs/ip_vs_ctl.c:110
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.7.0-rc2-next-20231120-syzkaller-02011-g5a82d69d48c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 __might_resched+0x3bc/0x5d0 kernel/sched/core.c:10189
 console_lock+0x34/0x150 kernel/printk/printk.c:2634
 do_con_write+0x145/0x7f40 drivers/tty/vt/vt.c:2862
 con_write+0x23/0xb0 drivers/tty/vt/vt.c:3251
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x46b/0xa80 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x225/0x1040 drivers/tty/n_gsm.c:3496
 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2636
 process_scheduled_works kernel/workqueue.c:2709 [inline]
 worker_thread+0x8b6/0x1290 kernel/workqueue.c:2790
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2634
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 23, name: kworker/1:0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 713594
hardirqs last  enabled at (713593): [<ffffffff8a81e43b>] irqentry_exit+0x3b/0x80 kernel/entry/common.c:435
hardirqs last disabled at (713594): [<ffffffff8a8405dd>] __schedule+0x260d/0x5c00 kernel/sched/core.c:6624
softirqs last  enabled at (713592): [<ffffffff8a859f41>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (713592): [<ffffffff8a859f41>] __do_softirq+0x591/0x8d5 kernel/softirq.c:582
softirqs last disabled at (713467): [<ffffffff814fe835>] invoke_softirq kernel/softirq.c:427 [inline]
softirqs last disabled at (713467): [<ffffffff814fe835>] __irq_exit_rcu kernel/softirq.c:632 [inline]
softirqs last disabled at (713467): [<ffffffff814fe835>] irq_exit_rcu+0xb5/0x120 kernel/softirq.c:644
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 23 Comm: kworker/1:0 Tainted: G        W          6.7.0-rc2-next-20231120-syzkaller-02011-g5a82d69d48c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 __might_resched+0x3bc/0x5d0 kernel/sched/core.c:10189
 console_lock+0x34/0x150 kernel/printk/printk.c:2634
 do_con_write+0x145/0x7f40 drivers/tty/vt/vt.c:2862
 con_write+0x23/0xb0 drivers/tty/vt/vt.c:3251
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x46b/0xa80 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x225/0x1040 drivers/tty/n_gsm.c:3496
 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2636
 process_scheduled_works kernel/workqueue.c:2709 [inline]
 worker_thread+0x8b6/0x1290 kernel/workqueue.c:2790
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2634
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 23, name: kworker/1:0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 713594
hardirqs last  enabled at (713593): [<ffffffff8a81e43b>] irqentry_exit+0x3b/0x80 kernel/entry/common.c:435
hardirqs last disabled at (713594): [<ffffffff8a8405dd>] __schedule+0x260d/0x5c00 kernel/sched/core.c:6624
softirqs last  enabled at (713592): [<ffffffff8a859f41>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (713592): [<ffffffff8a859f41>] __do_softirq+0x591/0x8d5 kernel/softirq.c:582
softirqs last disabled at (713467): [<ffffffff814fe835>] invoke_softirq kernel/softirq.c:427 [inline]
softirqs last disabled at (713467): [<ffffffff814fe835>] __irq_exit_rcu kernel/softirq.c:632 [inline]
softirqs last disabled at (713467): [<ffffffff814fe835>] irq_exit_rcu+0xb5/0x120 kernel/softirq.c:644
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 23 Comm: kworker/1:0 Tainted: G        W          6.7.0-rc2-next-20231120-syzkaller-02011-g5a82d69d48c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 __might_resched+0x3bc/0x5d0 kernel/sched/core.c:10189
 console_lock+0x34/0x150 kernel/printk/printk.c:2634
 do_con_write+0x145/0x7f40 drivers/tty/vt/vt.c:2862
 con_write+0x23/0xb0 drivers/tty/vt/vt.c:3251
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x46b/0xa80 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x225/0x1040 drivers/tty/n_gsm.c:3496
 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2636
 process_scheduled_works kernel/workqueue.c:2709 [inline]
 worker_thread+0x8b6/0x1290 kernel/workqueue.c:2790
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>