INFO: task syz.0.895:9765 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.895       state:D stack:26104 pid:9765  tgid:9751  ppid:5845   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb80
 __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+0xbc5/0x12b0
 __do_fault+0x138/0x390
 __handle_mm_fault+0x35e3/0x5400
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1380
 exc_page_fault+0x82/0x100
 asm_exc_page_fault+0x26/0x30
RIP: 0010:__get_user_nocheck_1+0x6/0x20
Code: e9 8f 27 04 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 0f ae e8 <0f> b6 10 31 c0 0f 1f 00 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90028907e90 EFLAGS: 00010202
RAX: 0000200000006680 RBX: ffff88810cb7d700 RCX: 0000000000080000
RDX: ffffc9000f50a000 RSI: 00000000000061eb RDI: 00000000000061ec
RBP: ffffc90028907f38 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc90028907f48 R15: ffff88810cb7d700
 syscall_user_dispatch+0x4f/0x90
 syscall_trace_enter+0x20/0x160
 do_syscall_64+0xd3/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2f918ec29
RSP: 002b:00007fd2f9f550e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fd2f93d6098 RCX: 00007fd2f918ec29
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fd2f93d609c
RBP: 00007fd2f93d6090 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd2f93d6128 R14: 00007ffd63bdca90 R15: 00007ffd63bdcb78
 </TASK>
INFO: task syz.0.895:9771 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.895       state:D stack:24040 pid:9771  tgid:9751  ppid:5845   task_flags:0x400040 flags:0x00080002
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+0xbc5/0x12b0
 __do_fault+0x138/0x390
 __handle_mm_fault+0x35e3/0x5400
 handle_mm_fault+0x40a/0x8e0
 __get_user_pages+0x165c/0x2a00
 __gup_longterm_locked+0xde4/0x1660
 gup_fast_fallback+0x1d65/0x22d0
 get_futex_key+0x97e/0x1660
 futex_wait_setup+0x4f/0x590
 __futex_wait+0x148/0x3d0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2f918ec29
RSP: 002b:00007fd2f9f34038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fd2f93d6180 RCX: 00007fd2f918ec29
RDX: 0000000000000004 RSI: 0000000000000000 RDI: 000020000000cffc
RBP: 00007fd2f9211e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd2f93d6218 R14: 00007fd2f93d6180 R15: 00007ffd63bdcb78
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e33d320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5673:
 #0: ffff888023d690a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900028382f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by syz.0.895/9765:
 #0: ffff888121868538 (mapping.invalidate_lock#5){++++}-{4:4}, at: filemap_fault+0x919/0x12b0
 #1: ffff888121868100 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_read_folio+0x180/0x200
2 locks held by syz.0.895/9771:
 #0: ffff888121868538 (mapping.invalidate_lock#5){++++}-{4:4}, at: filemap_fault+0x919/0x12b0
 #1: ffff888121868100 (&ni->ni_lock#2/5){+.+.}-{4:4}, at: ntfs_read_folio+0x180/0x200
3 locks held by syz.5.1690/13361:

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

NMI backtrace for cpu 0
CPU: 0 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+0xf60/0xfa0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5283 Comm: klogd 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
RIP: 0010:asm_sysvec_call_function_single+0x0/0x20
Code: c6 80 7f 0a e9 e1 05 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 91 04 00 00 48 89 c4 48 89 e7 e8 d6 7f 7f 0a e9 c1 05 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 71 04 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc900040ff708 EFLAGS: 00000006
RAX: 006f13b061a2d500 RBX: 0000000000000283 RCX: 006f13b061a2d500
RDX: 0000000000000001 RSI: ffffffff8dd8dcaa RDI: ffffffff8c03da60
RBP: ffff888108c26258 R08: 0000000000000000 R09: ffffffff82180dbd
R10: dffffc0000000000 R11: ffffed10046505a4 R12: 0000000000000001
R13: 0000000000000001 R14: ffffffff8e457660 R15: ffff888108c25700
FS:  00007ff444f27380(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557197e5c8 CR3: 0000000021098000 CR4: 00000000000006f0
Call Trace:
 <TASK>
RIP: 0010:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 1b 30 24 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900040ff738 EFLAGS: 00000206
 kmem_cache_alloc_node_noprof+0x48/0x710
 __alloc_skb+0x112/0x2d0
 alloc_skb_with_frags+0xca/0x890
 sock_alloc_send_pskb+0x84d/0x980
 unix_dgram_sendmsg+0x461/0x1850
 __sock_sendmsg+0x21c/0x270
 __sys_sendto+0x3bd/0x520
 __x64_sys_sendto+0xde/0x100
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff4450899b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc3fa22bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff4450899b5
RDX: 000000000000003a RSI: 0000559d994eaa20 RDI: 0000000000000003
RBP: 0000559d994e3910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007ff445217212 R14: 00007ffc3fa22cf8 R15: 0000000000000000
 </TASK>
