BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3921, name: syz-executor.0
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by syz-executor.0/3921:
 #0: ffff00001ce740a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff00001ce74130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:954 [inline]
 #1: ffff00001ce74130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: iterate_tty_write drivers/tty/tty_io.c:973 [inline]
 #1: ffff00001ce74130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x1a4/0x624 drivers/tty/tty_io.c:1096
 #2: ffff00001d1a33e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write+0x50/0x13c drivers/tty/n_gsm.c:3721
irq event stamp: 1024
hardirqs last  enabled at (1023): [<ffff800084e9febc>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (1023): [<ffff800084e9febc>] _raw_spin_unlock_irqrestore+0x80/0xac kernel/locking/spinlock.c:194
hardirqs last disabled at (1024): [<ffff800084e9fae8>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (1024): [<ffff800084e9fae8>] _raw_spin_lock_irqsave+0x7c/0x80 kernel/locking/spinlock.c:162
softirqs last  enabled at (1010): [<ffff80008001d828>] fpsimd_restore_current_state+0x44/0xe4 arch/arm64/kernel/fpsimd.c:1784
softirqs last disabled at (1008): [<ffff80008001d7f8>] alternative_has_cap_likely arch/arm64/include/asm/alternative-macros.h:232 [inline]
softirqs last disabled at (1008): [<ffff80008001d7f8>] system_supports_fpsimd arch/arm64/include/asm/cpufeature.h:734 [inline]
softirqs last disabled at (1008): [<ffff80008001d7f8>] fpsimd_restore_current_state+0x14/0xe4 arch/arm64/kernel/fpsimd.c:1777
Preemption disabled at:
[<ffff8000818c097c>] gsmld_write+0x50/0x13c drivers/tty/n_gsm.c:3721
CPU: 0 PID: 3921 Comm: syz-executor.0 Not tainted 6.9.0-rc2-syzkaller-00435-g9fe30842a90b #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace+0x9c/0x11c arch/arm64/kernel/stacktrace.c:317
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xa4/0xf4 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 __might_resched+0x3d4/0x5b4 kernel/sched/core.c:10197
 __might_sleep+0x94/0x154 kernel/sched/core.c:10126
 console_lock+0x5c/0x174 kernel/printk/printk.c:2659
 do_con_write+0x13c/0x5de8 drivers/tty/vt/vt.c:3056
 con_write+0x1c/0xc8 drivers/tty/vt/vt.c:3434
 gsmld_write+0xac/0x13c drivers/tty/n_gsm.c:3724
 iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
 file_tty_write.constprop.0+0x2c4/0x624 drivers/tty/tty_io.c:1096
 tty_write+0x30/0x50 drivers/tty/tty_io.c:1117
 call_write_iter include/linux/fs.h:2110 [inline]
 do_iter_readv_writev+0x2dc/0x4c4 fs/read_write.c:741
 vfs_writev+0x244/0x684 fs/read_write.c:971
 do_writev+0xfc/0x278 fs/read_write.c:1018
 __do_sys_writev fs/read_write.c:1091 [inline]
 __se_sys_writev fs/read_write.c:1088 [inline]
 __arm64_sys_writev+0x70/0xa0 fs/read_write.c:1088
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x50/0x180 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598