INFO: task syz-executor:5855 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21000 pid:5855  tgid:5855  ppid:1      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
 truncate_inode_pages_range+0x3ed/0xda0
 evict+0x517/0x9c0
 evict_inodes+0x64c/0x6d0
 generic_shutdown_super+0x9a/0x2c0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f59c3d8ff57
RSP: 002b:00007ffe0203cce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f59c3e11c2d RCX: 00007f59c3d8ff57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe0203cda0
RBP: 00007ffe0203cda0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe0203de30
R13: 00007f59c3e11c2d R14: 000000000001395f R15: 00007ffe0203de70
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/9:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffff88804b024008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff888031ce5240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x26b/0x3180
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by syslogd/5279:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff888136624008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
2 locks held by getty/5679:
 #0: ffff8880218cc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by syz-executor/5802:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
1 lock held by syz-executor/5855:
 #0: ffff8881115ae0e0 (&type->s_umount_key#67){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
3 locks held by kworker/1:4/5887:
1 lock held by syz.1.328/8837:
 #0: ffff8881115ae0e0 (&type->s_umount_key#67){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
3 locks held by dhcpcd-run-hook/9588:

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

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+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 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: 6351 Comm: udevd 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:kasan_check_range+0xb/0x2c0
Code: ff 90 0f 0b cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 55 <41> 54 53 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f
RSP: 0018:ffffc90002e6f3d8 EFLAGS: 00000046
RAX: 00000000000006a8 RBX: ffff8881a3c13000 RCX: ffffffff822aae9e
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88803048e6a8
RBP: ffffe8ffffc63490 R08: 0000000000000000 R09: ffffffff822ab599
R10: dffffc0000000000 R11: fffff940008f3191 R12: dffffc0000000000
R13: 0000607e5c050480 R14: 1ffffd1ffff8c692 R15: ffff88803048e6a8
FS:  00007fef51aadc80(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e7484e000 CR3: 000000001ec28000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 memcg_rstat_updated+0xee/0x220
 mod_memcg_lruvec_state+0x165/0x370
 __lruvec_stat_mod_folio+0x1a0/0x2f0
 filemap_unaccount_folio+0x20a/0x790
 __filemap_remove_folio+0xc3/0x500
 filemap_remove_folio+0xe6/0x1f0
 truncate_inode_folio+0x5d/0x70
 shmem_undo_range+0x3a9/0x14b0
 shmem_evict_inode+0x272/0xa70
 evict+0x504/0x9c0
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 __fput+0x68e/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fef517170a8
Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffc82a81278 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fef51aadae0 RCX: 00007fef517170a8
RDX: 000055ac8b5afb95 RSI: 00007ffc82a80a78 RDI: 0000000000000008
RBP: 000055a9d1c889b0 R08: 0000000000000006 R09: 64273a9982c31874
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000002
R13: 000055a9d1c87960 R14: 0000000000000008 R15: 000055a9d1c7e910
 </TASK>
