BUG: sleeping function called from invalid context at kernel/printk/printk.c:2623 in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 9377, name: syz-executor.2 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor.2/9377: #0: ffff0000f0c2b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff0000f0c2b130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:944 [inline] #1: ffff0000f0c2b130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:967 [inline] #1: ffff0000f0c2b130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write+0x18c/0x6f0 drivers/tty/tty_io.c:1089 #2: ffff0000d0b0a3e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write+0x60/0x154 drivers/tty/n_gsm.c:3060 irq event stamp: 578 hardirqs last enabled at (577): [] ___slab_alloc+0xd08/0xee0 mm/slub.c:3132 hardirqs last disabled at (578): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (578): [] _raw_spin_lock_irqsave+0xa4/0xb4 kernel/locking/spinlock.c:162 softirqs last enabled at (566): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (564): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 Preemption disabled at: [] gsmld_write+0x60/0x154 drivers/tty/n_gsm.c:3060 CPU: 0 PID: 9377 Comm: syz-executor.2 Not tainted 6.1.88-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 __might_resched+0x37c/0x4d8 kernel/sched/core.c:9942 __might_sleep+0x90/0xe4 kernel/sched/core.c:9871 console_lock+0x38/0x238 kernel/printk/printk.c:2623 do_con_write+0x110/0x5a8c drivers/tty/vt/vt.c:2908 con_write+0x34/0x58 drivers/tty/vt/vt.c:3295 gsmld_write+0x104/0x154 drivers/tty/n_gsm.c:3063 do_tty_write drivers/tty/tty_io.c:1018 [inline] file_tty_write+0x404/0x6f0 drivers/tty/tty_io.c:1089 tty_write+0x48/0x58 drivers/tty/tty_io.c:1110 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 loop2: detected capacity change from 0 to 512 EXT4-fs: Ignoring removed mblk_io_submit option [EXT4 FS bs=1024, gc=1, bpg=255, ipg=32, mo=a816c118, mo2=0000] System zones: 1-12 EXT4-fs error (device loop2): ext4_xattr_inode_iget:404: inode #11: comm syz-executor.2: missing EA_INODE flag EXT4-fs error (device loop2): ext4_xattr_inode_iget:409: comm syz-executor.2: error while reading EA inode 11 err=-117 EXT4-fs (loop2): 1 orphan inode deleted EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback.