INFO: task syz-executor:18049 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22376 pid:18049 tgid:18049 ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 v9fs_evict_inode+0x170/0x320
 evict+0x504/0x9c0
 __dentry_kill+0x209/0x660
 dput+0x19f/0x2b0
 shrink_dcache_for_umount+0xa0/0x170
 generic_shutdown_super+0x67/0x2c0
 kill_anon_super+0x3b/0x70
 v9fs_kill_super+0x4c/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: 0033:0x7f81f378ff17
RSP: 002b:00007ffe7823f1e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f81f3811c05 RCX: 00007f81f378ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe7823f2a0
RBP: 00007ffe7823f2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe78240330
R13: 00007f81f3811c05 R14: 00000000000879c1 R15: 00007ffe78240370
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5683:
 #0: ffff888022c620a0 (&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 sshd/5841:
3 locks held by kworker/0:4/5925:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900036dfbc0 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8e13f978 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730
1 lock held by syz-executor/18049:
 #0: ffff88812456a0e0 (&type->s_umount_key#113){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz-executor/22633:
1 lock held by syz.4.5805/23067:
 #0: ffff88812456a0e0 (&type->s_umount_key#113){++++}-{4:4}, at: super_lock+0x2a9/0x3b0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #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+0x3fc/0x770
 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: 23084 Comm: rm Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #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:__sanitizer_cov_trace_const_cmp8+0x8/0x90
Code: 48 89 44 11 20 e9 88 7b bc 09 cc 0f 1f 80 00 00 00 00 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 40 a0 92 65 8b 15 a8 8f e0 10 81 e2 00 01 ff 00
RSP: 0000:ffffc9000321f9b0 EFLAGS: 00000246
RAX: ffffffff81f7737d RBX: 0000000000000006 RCX: 1ffffd4000093ed8
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffffd4000093ed9 R08: ffffea000049f6c7 R09: 1ffffd4000093ed8
R10: dffffc0000000000 R11: fffff94000093ed9 R12: ffffea000049f6c0
R13: 00fff38000000a2c R14: ffffea000049f6c8 R15: ffffc9000321fb40
FS:  0000000000000000(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9fe6c6270 CR3: 000000010960a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 next_uptodate_folio+0x14d/0x5d0
 filemap_map_pages+0x102b/0x1740
 __handle_mm_fault+0x34ac/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa81/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7ff9fe982614
Code: 01 00 e9 0b 05 00 00 41 0f b7 9c 24 b8 02 00 00 48 6b db 38 49 03 9c 24 a8 02 00 00 49 39 9c 24 a8 02 00 00 0f 84 1f 02 00 00 <8b> 43 c8 48 83 eb 38 83 f8 04 74 1a 3d 53 e5 74 64 75 df 8b b5 2c
RSP: 002b:00007ffc79d6f630 EFLAGS: 00010293
RAX: 00007ff9fe6e94c8 RBX: 00007ff9fe6c62a8 RCX: 00007ff9fe9a2350
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007ff9fe99e326
RBP: 00007ffc79d6f790 R08: 000000006ffffdff R09: 000000006ffffeff
R10: 000000006fffff41 R11: 000000006ffffe35 R12: 00007ff9fe971f00
R13: 00007ffc79d6f818 R14: 0000000070000022 R15: 00000000effffef5
 </TASK>
