INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 3965 Comm: syz-executor941 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 assign_lock_key+0x1e4/0x1f0 kernel/locking/lockdep.c:937
 register_lock_class+0x148/0x6a4 kernel/locking/lockdep.c:1250
 __lock_acquire+0x184/0x7638 kernel/locking/lockdep.c:4891
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162
 gsmld_write+0x60/0x164 drivers/tty/n_gsm.c:2929
 do_tty_write drivers/tty/tty_io.c:1038 [inline]
 file_tty_write+0x44c/0x758 drivers/tty/tty_io.c:1110
 tty_write+0x48/0x58 drivers/tty/tty_io.c:1131
 do_iter_readv_writev+0x420/0x5f8
 do_iter_write+0x1b8/0x664 fs/read_write.c:855
 vfs_writev fs/read_write.c:928 [inline]
 do_writev+0x220/0x3ec fs/read_write.c:971
 __do_sys_writev fs/read_write.c:1044 [inline]
 __se_sys_writev fs/read_write.c:1041 [inline]
 __arm64_sys_writev+0x80/0x94 fs/read_write.c:1041
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2555
in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 3965, name: syz-executor941
INFO: lockdep is turned off.
irq event stamp: 14238
hardirqs last  enabled at (14237): [<ffff800011a71674>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (14237): [<ffff800011a71674>] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
hardirqs last disabled at (14238): [<ffff800011a71150>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (14238): [<ffff800011a71150>] _raw_spin_lock_irqsave+0xfc/0x14c kernel/locking/spinlock.c:162
softirqs last  enabled at (13796): [<ffff800008021c64>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (13796): [<ffff800008021c64>] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587
softirqs last disabled at (13755): [<ffff8000081b6568>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (13755): [<ffff8000081b6568>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (13755): [<ffff8000081b6568>] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637
Preemption disabled at:
[<ffff80000b413a74>] gsmld_write+0x60/0x164 drivers/tty/n_gsm.c:2929
CPU: 0 PID: 3965 Comm: syz-executor941 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 ___might_sleep+0x380/0x4dc kernel/sched/core.c:9626
 __might_sleep+0x98/0xf0 kernel/sched/core.c:9580
 console_lock+0x30/0x16c kernel/printk/printk.c:2555
 do_con_write+0x110/0x5934 drivers/tty/vt/vt.c:2908
 con_write+0x34/0x58 drivers/tty/vt/vt.c:3295
 gsmld_write+0x108/0x164 drivers/tty/n_gsm.c:2932
 do_tty_write drivers/tty/tty_io.c:1038 [inline]
 file_tty_write+0x44c/0x758 drivers/tty/tty_io.c:1110
 tty_write+0x48/0x58 drivers/tty/tty_io.c:1131
 do_iter_readv_writev+0x420/0x5f8
 do_iter_write+0x1b8/0x664 fs/read_write.c:855
 vfs_writev fs/read_write.c:928 [inline]
 do_writev+0x220/0x3ec fs/read_write.c:971
 __do_sys_writev fs/read_write.c:1044 [inline]
 __se_sys_writev fs/read_write.c:1041 [inline]
 __arm64_sys_writev+0x80/0x94 fs/read_write.c:1041
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584