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: 1 PID: 3506 Comm: syz-executor248 Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb 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:4890
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
 __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:2925
 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:2103 [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+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9ff7e7f0e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9ae48d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f9ff7e7f0e9
RDX: 0000000000000078 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000000d R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ff7e42630
R13: 0000000000000000 R14: 00007fff9ae48d40 R15: 00007fff9ae48d30
 </TASK>
BUG: sleeping function called from invalid context at kernel/printk/printk.c:2545
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3506, name: syz-executor248
INFO: lockdep is turned off.
irq event stamp: 554
hardirqs last  enabled at (553): [<ffffffff8a1a2462>] exc_page_fault+0x342/0x740 arch/x86/mm/fault.c:1544
hardirqs last disabled at (554): [<ffffffff8a237dec>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (554): [<ffffffff8a237dec>] _raw_spin_lock_irqsave+0xac/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (18): [<ffffffff814d3d05>] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last  enabled at (18): [<ffffffff814d3d05>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:636
softirqs last disabled at (13): [<ffffffff814d3d05>] invoke_softirq kernel/softirq.c:432 [inline]
softirqs last disabled at (13): [<ffffffff814d3d05>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:636
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 3506 Comm: syz-executor248 Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 ___might_sleep+0x547/0x6a0 kernel/sched/core.c:9625
 console_lock+0x18/0x70 kernel/printk/printk.c:2545
 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:2928
 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:2103 [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+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9ff7e7f0e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9ae48d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f9ff7e7f0e9
RDX: 0000000000000078 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000000d R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ff7e42630
R13: 0000000000000000 R14: 00007fff9ae48d40 R15: 00007fff9ae48d30
 </TASK>