BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5484, name: syz-executor.0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by syz-executor.0/5484:
 #0: ffff88806ee710a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffff88806ee71130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:954 [inline]
 #1: ffff88806ee71130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: iterate_tty_write drivers/tty/tty_io.c:973 [inline]
 #1: ffff88806ee71130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write+0x1f3/0x9b0 drivers/tty/tty_io.c:1096
 #2: ffff88802c03d3e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write+0x5b/0x120 drivers/tty/n_gsm.c:3721
irq event stamp: 328
hardirqs last  enabled at (327): [<ffffffff8b24840f>] syscall_enter_from_user_mode include/linux/entry-common.h:197 [inline]
hardirqs last  enabled at (327): [<ffffffff8b24840f>] do_syscall_64+0x3f/0x190 arch/x86/entry/common.c:79
hardirqs last disabled at (328): [<ffffffff8b2f8d0c>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (328): [<ffffffff8b2f8d0c>] _raw_spin_lock_irqsave+0xac/0x120 kernel/locking/spinlock.c:162
softirqs last  enabled at (0): [<ffffffff815794af>] rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
softirqs last  enabled at (0): [<ffffffff815794af>] rcu_read_lock include/linux/rcupdate.h:781 [inline]
softirqs last  enabled at (0): [<ffffffff815794af>] copy_process+0x9ff/0x3df0 kernel/fork.c:2259
softirqs last disabled at (0): [<0000000000000000>] 0x0
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 5484 Comm: syz-executor.0 Not tainted 6.9.0-syzkaller-01560-ga7c840ba5fa7 #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+0x23d/0x360 lib/dump_stack.c:114
 __might_resched+0x5d0/0x780 kernel/sched/core.c:10197
 console_lock+0x1c/0x1b0 kernel/printk/printk.c:2659
 do_con_write+0x150/0x4c20 drivers/tty/vt/vt.c:3056
 con_write+0x22/0x40 drivers/tty/vt/vt.c:3434
 gsmld_write+0xfa/0x120 drivers/tty/n_gsm.c:3724
 iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
 file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
 call_write_iter include/linux/fs.h:2120 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa01/0xc40 fs/read_write.c:590
 ksys_write+0x19c/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x84/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc869c7dd69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc86a93f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc869dabf80 RCX: 00007fc869c7dd69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fc869cca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc869dabf80 R15: 00007ffeb2d46858
 </TASK>