INFO: task syz-executor.3:16332 blocked for more than 143 seconds.
      Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:24496 pid:16332 tgid:16328 ppid:14805  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2558
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa7b/0xc90 kernel/workqueue.c:4218
 __lru_add_drain_all+0x504/0x570 mm/swap.c:912
 invalidate_bdev+0x93/0xc0 block/bdev.c:95
 ntfs_loadlog_and_replay+0x348/0x4f0 fs/ntfs3/fsntfs.c:330
 ntfs_fill_super+0x2ca2/0x49c0 fs/ntfs3/super.c:1284
 get_tree_bdev+0x3f9/0x570 fs/super.c:1614
 vfs_get_tree+0x92/0x2a0 fs/super.c:1779
 do_new_mount+0x2be/0xb40 fs/namespace.c:3352
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea6e87f46a
RSP: 002b:00007fea6e3feef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fea6e3fef80 RCX: 00007fea6e87f46a
RDX: 0000000020000000 RSI: 0000000020000240 RDI: 00007fea6e3fef40
RBP: 0000000020000000 R08: 00007fea6e3fef80 R09: 000000000100c040
R10: 000000000100c040 R11: 0000000000000202 R12: 0000000020000240
R13: 00007fea6e3fef40 R14: 000000000001f7c5 R15: 0000000020000480
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4844:
 #0: ffff88802f63a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.1/16290:
1 lock held by syz-executor.5/16314:
2 locks held by syz-executor.3/16332:
 #0: ffff88805cc240e0 (&type->s_umount_key#60/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:343
 #1: ffffffff8e3ec608 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x570 mm/swap.c:867
3 locks held by syz-executor.0/16365:
 #0: ffff88801af2ed48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x259/0x320 fs/file.c:1191
 #1: ffff88802fa9a420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline]
 #1: ffff88802fa9a420 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x233/0xcb0 fs/read_write.c:586
 #2: ffff88806cc58400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
 #2: ffff88806cc58400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:530 [inline]
 #2: ffff88806cc58400 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_file_write_iter+0x388/0x1a10 fs/ext4/file.c:696

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #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+0x241/0x360 lib/dump_stack.c:114
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xfde/0x1020 kernel/hung_task.c:380
 kthread+0x2f2/0x390 kernel/kthread.c:388
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16314 Comm: syz-executor.5 Not tainted 6.9.0-syzkaller-00967-gcd97950cbcab #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200
Code: 89 fb e8 23 00 00 00 48 8b 3d bc ed 3e 0c 48 89 de 5b e9 53 2d 59 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 c0 d3 03 00 65 8b 15 a0 bf
RSP: 0018:ffffc90009507938 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900095079e0 RCX: 0000000000040000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8ea44c80
RBP: ffffc90009507b10 R08: ffffffff8fa8fc2f R09: 1ffffffff1f51f85
R10: dffffc0000000000 R11: fffffbfff1f51f86 R12: 00007fd3fbd7dd00
R13: 0000000000000340 R14: 0000000000000344 R15: dffffc0000000000
FS:  00007fd3fbd7e6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd3fbd7df00 CR3: 000000006bcde000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 save_xstate_epilog arch/x86/kernel/fpu/signal.c:127 [inline]
 copy_fpstate_to_sigframe+0xaa5/0xd90 arch/x86/kernel/fpu/signal.c:245
 get_sigframe+0x55d/0x700 arch/x86/kernel/signal.c:142
 x64_setup_rt_frame+0x180/0xcc0 arch/x86/kernel/signal_64.c:175
 setup_rt_frame arch/x86/kernel/signal.c:223 [inline]
 handle_signal arch/x86/kernel/signal.c:267 [inline]
 arch_do_signal_or_restart+0x458/0x860 arch/x86/kernel/signal.c:312
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd3fb07dd67
Code: 14 25 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
RSP: 002b:00007fd3fbd7e0c8 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007fd3fb1abf80 RCX: 00007fd3fb07dd69
RDX: 0000000000000000 RSI: 0000800000000006 RDI: 0000000020001300
RBP: 00007fd3fb0ca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd3fb1abf80 R15: 00007ffe63c04c78
 </TASK>