INFO: task syz.5.516:8247 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.516       state:D stack:24616 pid:8247  tgid:8246  ppid:7489   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 __filemap_get_folio+0x139/0xaf0
 pagecache_get_page+0x2a/0x130
 ni_readpage_cmpr+0x614/0x8d0
 ntfs_read_folio+0x18d/0x200
 filemap_read_folio+0x117/0x380
 filemap_fault+0xb16/0x1200
 __do_fault+0x138/0x390
 __handle_mm_fault+0x3611/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0xf/0x90
Code: c4 10 e9 c4 0a 04 00 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 83 f9 40 73 44 83 f9 08 73 25 85 c9 74 0f <8a> 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 e9 8d 0a 04 00 66 2e
RSP: 0018:ffffc90004ec7d78 EFLAGS: 00010202
RAX: 00007ffffffff001 RBX: 0000000000000004 RCX: 0000000000000004
RDX: 0000000000000001 RSI: 0000200000000040 RDI: ffffc90004ec7e00
RBP: ffffc90004ec7e68 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520009d8fc0 R12: ffff888117fbc800
R13: ffffc90004ec7e00 R14: ffffc90004ec7e00 R15: 0000200000000040
 _copy_from_user+0x7a/0xb0
 do_sock_getsockopt+0x17d/0x450
 __x64_sys_getsockopt+0x1a5/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb3f578ec29
RSP: 002b:00007fb3f665a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007fb3f59d5fa0 RCX: 00007fb3f578ec29
RDX: 0000000000000023 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007fb3f5811e41 R08: 0000200000000040 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb3f59d6038 R14: 00007fb3f59d5fa0 R15: 00007ffea9128dc8
 </TASK>
INFO: task syz.5.516:8251 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.516       state:D stack:24744 pid:8251  tgid:8246  ppid:7489   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 ntfs_read_folio+0x180/0x200
 filemap_read_folio+0x117/0x380
 filemap_fault+0xb16/0x1200
 __do_fault+0x138/0x390
 __handle_mm_fault+0x3611/0x5440
 handle_mm_fault+0x40a/0x8e0
 __get_user_pages+0x1699/0x2ce0
 __gup_longterm_locked+0xde9/0x1660
 gup_fast_fallback+0x1e6a/0x2010
 get_futex_key+0x97e/0x1660
 futex_wait_setup+0x4f/0x590
 __futex_wait+0x148/0x3e0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb3f578ec29
RSP: 002b:00007fb3f6618038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb3f59d6180 RCX: 00007fb3f578ec29
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 000020000000cffc
RBP: 00007fb3f5811e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb3f59d6218 R14: 00007fb3f59d6180 R15: 00007ffea9128dc8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
3 locks held by kworker/u9:4/138:
 #0: ffff88801a489148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000258fbc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f53a1c8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
2 locks held by getty/5677:
 #0: ffff888107c220a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
3 locks held by kworker/1:5/5916:
 #0: ffff88801bb69d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003bffbc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff8881095d6198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
2 locks held by syz.5.516/8247:
 #0: ffff88803bcb5d58 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_fault+0x86a/0x1200
 #1: ffff88803bcb5920 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_read_folio+0x180/0x200
2 locks held by syz.5.516/8251:
 #0: ffff88803bcb5d58 (mapping.invalidate_lock#9){.+.+}-{4:4}, at: filemap_fault+0x86a/0x1200
 #1: ffff88803bcb5920 (&ni->ni_lock#3/5){+.+.}-{4:4}, at: ntfs_read_folio+0x180/0x200
2 locks held by syz-executor/8473:
 #0: ffffffff8f53a1c8 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
 #1: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730
3 locks held by kworker/u8:5/8819:
2 locks held by syz.1.1214/11232:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5888 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events iterate_cleanup_work
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x70
Code: cc cc 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 08 d0 a0 92 65 8b 15 88 22 e1 10 <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 3c 16 00 00
RSP: 0018:ffffc90003a0f928 EFLAGS: 00000287
RAX: ffffffff89acf49b RBX: ffffc90003a0f9e0 RCX: ffff8880206a9cc0
RDX: 0000000080000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa3a737 R09: 1ffffffff1f474e6
R10: dffffc0000000000 R11: fffffbfff1f474e7 R12: 000000000000e36c
R13: ffff888028d71b58 R14: dffffc0000000000 R15: 1ffff92000741f3c
FS:  0000000000000000(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c47acc6 CR3: 0000000022da8000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 nf_ct_iterate_cleanup+0x4cb/0x520
 iterate_cleanup_work+0xdb/0x1f0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
