INFO: task syz-executor:5816 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:21672 pid:5816  tgid:5816  ppid:1      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
 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+0xe9/0x130
 do_syscall_64+0x2bd/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4f5d390af7
RSP: 002b:00007ffd8f3a8a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f4f5d3ee72f RCX: 00007f4f5d390af7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd8f3a8af0
RBP: 00007ffd8f3a8af0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd8f3a9b80
R13: 00007f4f5d3ee72f R14: 000000000001e4ab R15: 00007ffd8f3a9bc0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8df3d6a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5637:
 #0: ffff88816b7d20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by syz-executor/5816:
 #0: ffff888100b980e0 (&type->s_umount_key#94){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
3 locks held by kworker/0:5/5879:
1 lock held by udevd/6327:
1 lock held by syz.5.1621/10238:
 #0: ffff888100b980e0 (&type->s_umount_key#94){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.1621/10239:
 #0: ffff888100b980e0 (&type->s_umount_key#94){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.0.2110/11531:
 #0: ffff888100b980e0 (&type->s_umount_key#94){++++}-{4:4}, at: super_lock+0x2a9/0x3b0

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 35 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6327 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:stack_trace_save+0xb0/0xe0
Code: 25 08 a0 6e 92 48 c7 c7 40 42 ac 81 48 89 c6 31 c9 e8 c4 ef bd ff 8b 44 24 30 48 c7 04 24 0e 36 e0 45 4a c7 04 33 00 00 00 00 <42> c7 44 33 08 00 00 00 00 65 48 8b 0d 0f 5e c2 10 48 3b 4c 24 78
RSP: 0018:ffffc900086778e0 EFLAGS: 00000292
RAX: 000000000000000d RBX: 1ffff920010cef1c RCX: 535c647dcfd41300
RDX: 0000000000000000 RSI: ffffffff8d8f5516 RDI: ffff88810a2f5700
RBP: ffffc90008677970 R08: 0000000000000000 R09: ffffffff81cf2566
R10: ffffc90008677898 R11: ffffffff81ac4240 R12: 00000000000005f8
R13: 000000000001fe28 R14: dffffc0000000000 R15: ffffc90008677980
FS:  00007f34eced1c80(0000) GS:ffff88818eb36000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff4b59b7198 CR3: 0000000115f20000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_lru_noprof+0x36c/0x6e0
 shmem_alloc_inode+0x28/0x40
 alloc_inode+0x6a/0x1b0
 new_inode+0x22/0x170
 shmem_get_inode+0x346/0xe90
 shmem_symlink+0xa3/0x510
 vfs_symlink+0x143/0x2f0
 do_symlinkat+0x1b1/0x3f0
 __x64_sys_symlink+0x7a/0x90
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f34ecb17ce7
Code: f0 ff ff 73 01 c3 48 8b 0d 3e 91 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 11 91 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe3b22a068 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007ffe3b22a078 RCX: 00007f34ecb17ce7
RDX: 0000000000000000 RSI: 00007ffe3b22a078 RDI: 000055b45997d5a0
RBP: 000055b45998e780 R08: 0000000000000000 R09: 00007ffe3b2299e8
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000903
R13: 000055b459985950 R14: 0000000000000008 R15: 000055b45996e910
 </TASK>
