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: 3499 Comm: syz-executor237 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 assign_lock_key+0x21e/0x230 kernel/locking/lockdep.c:937
 register_lock_class+0x28a/0x9a0 kernel/locking/lockdep.c:1250
 __lock_acquire+0xd7/0x1ff0 kernel/locking/lockdep.c:4891
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 gsmld_write+0x5b/0x120 drivers/tty/n_gsm.c:2929
 do_tty_write drivers/tty/tty_io.c:1038 [inline]
 file_tty_write+0x561/0x920 drivers/tty/tty_io.c:1110
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xacf/0xe50 fs/read_write.c:594
 ksys_write+0x1a2/0x2c0 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f54009c8569
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffed0a3b7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffed0a3b978 RCX: 00007f54009c8569
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f5400a3b610 R08: 00007ffed0a3b4b6 R09: 00007ffed0a3b978
R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffed0a3b968 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2555
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3499, name: syz-executor237
INFO: lockdep is turned off.
irq event stamp: 15592
hardirqs last  enabled at (15591): [<ffffffff8a1dd8ce>] syscall_enter_from_user_mode+0x2e/0x240 kernel/entry/common.c:113
hardirqs last disabled at (15592): [<ffffffff8a274a1c>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (15592): [<ffffffff8a274a1c>] _raw_spin_lock_irqsave+0xac/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (15032): [<ffffffff814d84f5>] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last  enabled at (15032): [<ffffffff814d84f5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
softirqs last disabled at (15027): [<ffffffff814d84f5>] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last disabled at (15027): [<ffffffff814d84f5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 PID: 3499 Comm: syz-executor237 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 ___might_sleep+0x547/0x6a0 kernel/sched/core.c:9626
 console_lock+0x18/0x70 kernel/printk/printk.c:2555
 do_con_write+0x110/0x7270 drivers/tty/vt/vt.c:2908
 con_write+0x20/0x40 drivers/tty/vt/vt.c:3295
 gsmld_write+0xf9/0x120 drivers/tty/n_gsm.c:2932
 do_tty_write drivers/tty/tty_io.c:1038 [inline]
 file_tty_write+0x561/0x920 drivers/tty/tty_io.c:1110
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xacf/0xe50 fs/read_write.c:594
 ksys_write+0x1a2/0x2c0 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f54009c8569
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffed0a3b7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffed0a3b978 RCX: 00007f54009c8569
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f5400a3b610 R08: 00007ffed0a3b4b6 R09: 00007ffed0a3b978
R10: 000000000000000e R11: 0000000000000246 R12: 000000000000