INFO: task syz.1.1038:13952 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1038      state:D stack:24696 pid:13952 tgid:13951 ppid:13520  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x6d9/0x940
 down_read+0x99/0x2e0
 super_lock+0x2d6/0x3d0
 user_get_super+0xc8/0x120
 __se_sys_quotactl+0x540/0x9e0
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe63f99cdd9
RSP: 002b:00007fe6407b8028 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007fe63fc15fa0 RCX: 00007fe63f99cdd9
RDX: 0000000000000000 RSI: 0000200000000680 RDI: ffffffff80000102
RBP: 00007fe63fa32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe63fc16038 R14: 00007fe63fc15fa0 R15: 00007ffd1d8d0548
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5433:
 #0: ffff888111f6d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
3 locks held by syz-executor/8888:
1 lock held by syz.1.1038/13952:
 #0: ffff8881765860d8 (&type->s_umount_key#61){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
7 locks held by syz-executor/16789:
 #0: ffff88816f474410 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x227/0xb90
 #1: ffff8881bd2a4c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1de/0x540
 #2: ffff88816fcf6698 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x231/0x540
 #3: ffffffff8f64ecc0 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd7/0x370
 #4: ffff888116304128 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x870
 #5: ffff888116303258 (&devlink->lock_key#29){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x170
 #6: ffffffff8e962f38 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x580
3 locks held by syz.8.1566/16929:
1 lock held by dhcpcd-run-hook/16939:

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

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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 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: 16938 Comm: dhcpcd-run-hook 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:stack_trace_consume_entry+0x5/0x280
Code: e9 50 4f fa 09 cc e8 9a 5b f7 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff
RSP: 0000:ffffc9000773f2d8 EFLAGS: 00000286
RAX: ffffffff822dd835 RBX: ffffc9000773f3a0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff822dd835 RDI: ffffc9000773f3a0
RBP: ffffc9000773f370 R08: ffffc9000773f930 R09: 0000000000000000
R10: ffffc9000773f338 R11: ffffffff81b0d870 R12: ffff888176751d80
R13: 1ffff1102ecea46e R14: ffffffff81b0d870 R15: ffffc9000773f2e8
FS:  00007f80fa7d2380(0000) GS:ffff88818dc90000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558489538950 CR3: 00000001155ea000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 arch_stack_walk+0x10f/0x150
 stack_trace_save+0xa9/0x100
 save_stack+0x122/0x230
 __set_page_owner+0x8d/0x4c0
 post_alloc_hook+0x231/0x280
 get_page_from_freelist+0x24ba/0x2540
 __alloc_frozen_pages_noprof+0x18d/0x380
 alloc_pages_mpol+0x235/0x490
 folio_alloc_mpol_noprof+0x39/0x160
 vma_alloc_folio_noprof+0xe1/0x1e0
 do_wp_page+0x118a/0x4cc0
 handle_mm_fault+0x151d/0x3170
 do_user_addr_fault+0xa73/0x1340
 exc_page_fault+0x6a/0xc0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f80faa53258
Code: da 85 db 75 0e 41 bc 01 00 00 00 84 c0 0f 84 0b 02 00 00 41 bc 01 00 00 00 49 8b 16 89 d8 83 e0 ef 89 44 24 08 8b 42 40 ff c0 <89> 42 40 31 c0 83 7c 24 08 01 0f 95 c0 80 3d b2 f6 07 00 00 89 44
RSP: 002b:00007ffed6c35320 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000001 RCX: 00007f80fa90ca12
RDX: 0000558489538910 RSI: 0000558489539b70 RDI: 0000000000000001
RBP: 0000558489539b70 R08: 000000000000422d R09: ffffffffff000000
R10: 00007f80fa7d2650 R11: 0000000000000246 R12: 0000000000000001
R13: 0000558489539b70 R14: 00007f80faad2470 R15: 0000000000000000
 </TASK>
