BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 784, name: kworker/0:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by kworker/0:2/784:
 #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3193 [inline]
 #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3299
 #1: ffffc90003b97d00 ((work_completion)(&gsm->tx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3194 [inline]
 #1: ffffc90003b97d00 ((work_completion)(&gsm->tx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3299
 #2: ffff88801b78f3e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write_task+0x3c/0x9f0 drivers/tty/n_gsm.c:3494
irq event stamp: 82952
hardirqs last  enabled at (82951): [<ffffffff8b8f8c53>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (82951): [<ffffffff8b8f8c53>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202
hardirqs last disabled at (82952): [<ffffffff8b8f8870>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (82952): [<ffffffff8b8f8870>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (82932): [<ffffffff815a45cb>] do_softirq+0x11b/0x1e0 kernel/softirq.c:455
softirqs last disabled at (82879): [<ffffffff815a45cb>] do_softirq+0x11b/0x1e0 kernel/softirq.c:455
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 784 Comm: kworker/0:2 Not tainted 6.9.0-rc3-next-20240412-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 __might_resched+0x5d4/0x780 kernel/sched/core.c:10197
 console_lock+0x20/0x1b0 kernel/printk/printk.c:2659
 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056
 con_write+0x26/0x40 drivers/tty/vt/vt.c:3434
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x734/0x930 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x163/0x9f0 drivers/tty/n_gsm.c:3496
 process_one_work kernel/workqueue.c:3218 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 784, name: kworker/0:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 82969
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] _raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (82932): [<ffffffff815a45cb>] do_softirq+0x11b/0x1e0 kernel/softirq.c:455
softirqs last disabled at (82959): [<ffffffff815a48e2>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (82959): [<ffffffff815a48e2>] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 784 Comm: kworker/0:2 Tainted: G        W          6.9.0-rc3-next-20240412-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 __might_resched+0x5d4/0x780 kernel/sched/core.c:10197
 console_lock+0x20/0x1b0 kernel/printk/printk.c:2659
 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056
 con_write+0x26/0x40 drivers/tty/vt/vt.c:3434
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x734/0x930 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x163/0x9f0 drivers/tty/n_gsm.c:3496
 process_one_work kernel/workqueue.c:3218 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 784, name: kworker/0:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 82969
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] _raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (82932): [<ffffffff815a45cb>] do_softirq+0x11b/0x1e0 kernel/softirq.c:455
softirqs last disabled at (82959): [<ffffffff815a48e2>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (82959): [<ffffffff815a48e2>] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 784 Comm: kworker/0:2 Tainted: G        W          6.9.0-rc3-next-20240412-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 __might_resched+0x5d4/0x780 kernel/sched/core.c:10197
 console_lock+0x20/0x1b0 kernel/printk/printk.c:2659
 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056
 con_write+0x26/0x40 drivers/tty/vt/vt.c:3434
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x734/0x930 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x163/0x9f0 drivers/tty/n_gsm.c:3496
 process_one_work kernel/workqueue.c:3218 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 784, name: kworker/0:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 82969
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (82968): [<ffffffff8b8f8b6f>] _raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (82969): [<ffffffff8b8f8870>] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (82932): [<ffffffff815a45cb>] do_softirq+0x11b/0x1e0 kernel/softirq.c:455
softirqs last disabled at (82959): [<ffffffff815a48e2>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (82959): [<ffffffff815a48e2>] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 784 Comm: kworker/0:2 Tainted: G        W          6.9.0-rc3-next-20240412-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events gsmld_write_task
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 __might_resched+0x5d4/0x780 kernel/sched/core.c:10197
 console_lock+0x20/0x1b0 kernel/printk/printk.c:2659
 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056
 con_write+0x26/0x40 drivers/tty/vt/vt.c:3434
 gsmld_output drivers/tty/n_gsm.c:3461 [inline]
 gsm_send_packet+0x734/0x930 drivers/tty/n_gsm.c:964
 gsm_data_kick drivers/tty/n_gsm.c:1026 [inline]
 gsmld_write_task+0x163/0x9f0 drivers/tty/n_gsm.c:3496
 process_one_work kernel/workqueue.c:3218 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>