INFO: task syz-executor:6569 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:21416 pid:6569  tgid:6569  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: 0033:0x7fa8fc98ff57
RSP: 002b:00007ffc6a7a3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fa8fca11c2d RCX: 00007fa8fc98ff57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc6a7a30f0
RBP: 00007ffc6a7a30f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc6a7a4180
R13: 00007fa8fca11c2d R14: 0000000000015946 R15: 00007ffc6a7a41c0
 </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
4 locks held by kworker/u10:5/1091:
3 locks held by udevd/5300:
2 locks held by getty/5680:
 #0: ffff8880299d90a0 (&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
1 lock held by syz-executor/6569:
 #0: ffff8880324be0e0 (&type->s_umount_key#69){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz-executor/7351:
 #0: ffff8880329980e0 (&type->s_umount_key#69){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.2.461/7642:
 #0: ffff8880324be0e0 (&type->s_umount_key#69){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.1.479/7711:
 #0: ffff8880324be0e0 (&type->s_umount_key#69){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz-executor/7798:
 #0: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
2 locks held by syz-executor/9906:
 #0: ffffffff8eca9720 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff8f53a1c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70
1 lock held by cmp/10143:

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

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: 10144 Comm: rm 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:__up_read+0x1f8/0x680
Code: 41 83 e4 03 4c 89 ff be 08 00 00 00 e8 21 40 86 00 48 8d 7c 24 40 be 08 00 00 00 e8 12 40 86 00 48 8b 44 24 40 f0 4d 0f b1 27 <74> 05 49 89 c4 eb be 48 89 df be 08 00 00 00 e8 f4 3f 86 00 49 c7
RSP: 0018:ffffc90002a5f620 EFLAGS: 00000246
RAX: ffff8880203dd641 RBX: ffff888033bd5338 RCX: ffffffff819ced8e
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc90002a5f660
RBP: ffffc90002a5f6d0 R08: ffffc90002a5f667 R09: 1ffff9200054becc
R10: dffffc0000000000 R11: fffff5200054becd R12: 0000000000000001
R13: 1ffff1100677aa68 R14: ffff8880203dd640 R15: ffff888033bd5340
FS:  00007f1d91a70380(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1d91b78dc3 CR3: 0000000035a2c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 validate_mm+0x24e/0x4b0
 __split_vma+0x8bd/0xa00
 vma_modify+0x13b3/0x1970
 vma_modify_flags+0x1e8/0x230
 mprotect_fixup+0x407/0x9c0
 do_mprotect_pkey+0x8cd/0xce0
 __x64_sys_mprotect+0x80/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d91d96bb7
Code: 00 00 00 b8 0b 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 c3 48 8d 0d b9 46 01 00 f7 d8 89 01 48 83 c8 ff c3 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 99 46 01 00 f7 d8 89 01 48 83
RSP: 002b:00007ffee531b598 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f1d91d71500 RCX: 00007f1d91d96bb7
RDX: 0000000000000001 RSI: 0000000000004000 RDI: 00007f1d91c9b000
RBP: 00007ffee531b6b0 R08: 00007ffee5310000 R09: 00007f1d91daaab0
R10: 00007f1d91b01ab8 R11: 0000000000000206 R12: 00007f1d91d71500
R13: 00007f1d91d9eeda R14: 00007f1d91c9ebf8 R15: 00007f1d91c9eb70
 </TASK>
