INFO: task syz-executor.2:5102 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc1-syzkaller-00344-g037266a5f723 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:18864 pid:5102  tgid:5102  ppid:1      flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6778
 io_schedule+0x8c/0x100 kernel/sched/core.c:8998
 folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1273
 __filemap_get_folio+0xa3/0xbb0 mm/filemap.c:1864
 truncate_inode_pages_range+0x55a/0xf70 mm/truncate.c:376
 ntfs_evict_big_inode+0x30/0x480 fs/ntfs/inode.c:2251
 evict+0x2a4/0x630 fs/inode.c:664
 dispose_list fs/inode.c:697 [inline]
 evict_inodes+0x5f8/0x690 fs/inode.c:747
 generic_shutdown_super+0x9d/0x2c0 fs/super.c:675
 kill_block_super+0x44/0x90 fs/super.c:1667
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:88
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f5bca87de17
RSP: 002b:00007ffdf91b0628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5bca87de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffdf91b06e0
RBP: 00007ffdf91b06e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdf91b17a0
R13: 00007f5bca8c73b9 R14: 000000000014c6ea R15: 000000000000000a
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
 #0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
 #0: ffffffff8d92d060 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
2 locks held by getty/4813:
 #0: ffff888026a3e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.2/5102:
 #0: ffff8880578540e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff8880578540e0 (&type->s_umount_key#102){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff8880578540e0 (&type->s_umount_key#102){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:516

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

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc1-syzkaller-00344-g037266a5f723 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfaf/0xff0 kernel/hung_task.c:379
 kthread+0x2d3/0x370 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4499 Comm: klogd Not tainted 6.7.0-rc1-syzkaller-00344-g037266a5f723 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:metadata_to_pageaddr mm/kfence/core.c:266 [inline]
RIP: 0010:kfence_guarded_alloc+0x383/0xe20 mm/kfence/core.c:432
Code: 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 68 d2 ff ff 48 c7 c3 00 f0 ff ff 49 23 1c 24 <48> 89 df 4c 89 f6 e8 e2 f5 a3 ff 4c 39 f3 0f 85 91 06 00 00 e8 c4
RSP: 0018:ffffc90003167380 EFLAGS: 00000086
RAX: 1ffff11047ff5d9c RBX: ffff88823bcd0000 RCX: dffffc0000000000
RDX: 0000000000003d8f RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003167490 R08: ffffffff81ea8a47 R09: 1ffffffff21ba86e
R10: dffffc0000000000 R11: fffffbfff21ba86f R12: ffff88823ffaece0
R13: ffff888012cd7640 R14: ffff88823bcd0000 R15: ffff88823ffaec78
FS:  00007fe3101dc380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556e831b0680 CR3: 00000000254e4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __kfence_alloc+0x344/0x370 mm/kfence/core.c:1116
 kfence_alloc include/linux/kfence.h:129 [inline]
 slab_alloc_node mm/slub.c:3464 [inline]
 kmem_cache_alloc_node+0x294/0x310 mm/slub.c:3523
 __alloc_skb+0x181/0x420 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1286 [inline]
 alloc_skb_with_frags+0xc3/0x780 net/core/skbuff.c:6331
 sock_alloc_send_pskb+0x919/0xa50 net/core/sock.c:2780
 unix_dgram_sendmsg+0x696/0x2200 net/unix/af_unix.c:1976
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x484/0x640 net/socket.c:2190
 __do_sys_sendto net/socket.c:2202 [inline]
 __se_sys_sendto net/socket.c:2198 [inline]
 __x64_sys_sendto+0xde/0xf0 net/socket.c:2198
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe31033e9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffeb3f9fe08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe31033e9b5
RDX: 0000000000000047 RSI: 0000558317e4cdf0 RDI: 0000000000000003
RBP: 0000558317e44910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fe3104cc212 R14: 00007ffeb3f9ff08 R15: 0000000000000000
 </TASK>