INFO: task syz.5.2942:17678 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.2942      state:D stack:27688 pid:17678 tgid:17665 ppid:9227   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5263 [inline]
 __schedule+0x1836/0x4ed0 kernel/sched/core.c:6871
 __schedule_loop kernel/sched/core.c:6953 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6968
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7025
 rwsem_down_write_slowpath+0x872/0xfe0 kernel/locking/rwsem.c:1185
 __down_write_common kernel/locking/rwsem.c:1317 [inline]
 __down_write kernel/locking/rwsem.c:1326 [inline]
 down_write_nested+0x1b5/0x200 kernel/locking/rwsem.c:1707
 inode_lock_nested include/linux/fs.h:1072 [inline]
 lock_rename fs/namei.c:3681 [inline]
 __start_renaming+0x148/0x410 fs/namei.c:3777
 do_renameat2+0x399/0x8e0 fs/namei.c:5991
 __do_sys_rename fs/namei.c:6059 [inline]
 __se_sys_rename fs/namei.c:6057 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:6057
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d9418f749
RSP: 002b:00007f5d923d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f5d943e6090 RCX: 00007f5d9418f749
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 0000200000000340
RBP: 00007f5d94213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5d943e6128 R14: 00007f5d943e6090 R15: 00007ffd83983218
 </TASK>
INFO: task syz.5.2942:17680 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.2942      state:D stack:28744 pid:17680 tgid:17665 ppid:9227   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5263 [inline]
 __schedule+0x1836/0x4ed0 kernel/sched/core.c:6871
 __schedule_loop kernel/sched/core.c:6953 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6968
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7025
 rwsem_down_write_slowpath+0x872/0xfe0 kernel/locking/rwsem.c:1185
 __down_write_common kernel/locking/rwsem.c:1317 [inline]
 __down_write kernel/locking/rwsem.c:1326 [inline]
 down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1591
 inode_lock include/linux/fs.h:1027 [inline]
 open_last_lookups fs/namei.c:4506 [inline]
 path_openat+0xabf/0x3d90 fs/namei.c:4753
 do_filp_open+0x1fa/0x410 fs/namei.c:4783
 do_sys_openat2+0x121/0x1c0 fs/open.c:1432
 do_sys_open fs/open.c:1447 [inline]
 __do_sys_creat fs/open.c:1525 [inline]
 __se_sys_creat fs/open.c:1519 [inline]
 __x64_sys_creat+0x8f/0xc0 fs/open.c:1519
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d9418f749
RSP: 002b:00007f5d923b4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f5d943e6180 RCX: 00007f5d9418f749
RDX: 0000000000000000 RSI: 00000000000000ec RDI: 0000200000000e00
RBP: 00007f5d94213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5d943e6218 R14: 00007f5d943e6180 R15: 00007ffd83983218
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffffffff8df3d740 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8df3d740 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #0: ffffffff8df3d740 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
2 locks held by kworker/u8:7/1012:
 #0: ffff88801cbba148 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_one_work+0x841/0x15e0 kernel/workqueue.c:3236
 #1: ffffc90003fefb80 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x868/0x15e0 kernel/workqueue.c:3237
2 locks held by getty/5589:
 #0: ffff88814e2480a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
3 locks held by syz.5.2942/17667:
2 locks held by syz.5.2942/17678:
 #0: ffff88803af2e420 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:509
 #1: ffff888068280398 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1072 [inline]
 #1: ffff888068280398 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: lock_rename fs/namei.c:3681 [inline]
 #1: ffff888068280398 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: __start_renaming+0x148/0x410 fs/namei.c:3777
2 locks held by syz.5.2942/17680:
 #0: ffff88803af2e420 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:509
 #1: ffff888068280398 (&type->i_mutex_dir_key#10){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
 #1: ffff888068280398 (&type->i_mutex_dir_key#10){++++}-{4:4}, at: open_last_lookups fs/namei.c:4506 [inline]
 #1: ffff888068280398 (&type->i_mutex_dir_key#10){++++}-{4:4}, at: path_openat+0xabf/0x3d90 fs/namei.c:4753
2 locks held by dhcpcd/17752:
 #0: ffff8880579fde08 (&sb->s_type->i_mutex_key#12){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
 #0: ffff8880579fde08 (&sb->s_type->i_mutex_key#12){+.+.}-{4:4}, at: __sock_release net/socket.c:661 [inline]
 #0: ffff8880579fde08 (&sb->s_type->i_mutex_key#12){+.+.}-{4:4}, at: sock_close+0x9b/0x240 net/socket.c:1459
 #1: ffffffff8df431f8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline]
 #1: ffffffff8df431f8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:957
4 locks held by dhcpcd-run-hook/20949:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
 watchdog+0xfb5/0x1000 kernel/hung_task.c:515
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 17667 Comm: syz.5.2942 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:146 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:153 [inline]
RIP: 0010:lock_release+0x291/0x3d0 kernel/locking/lockdep.c:5892
Code: c7 d5 4e 97 8d e8 cf be bc 09 b8 ff ff ff ff 65 0f c1 05 e2 f1 d7 10 83 f8 01 75 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 <f7> 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b
RSP: 0018:ffffc900047bfa18 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000283 RCX: 62e1c05a433d2100
RDX: 0000000000000003 RSI: ffffffff8d974ed5 RDI: ffffffff8bbf8160
RBP: ffff88802555e728 R08: ffff8880682818ab R09: 1ffff1100d050315
R10: dffffc0000000000 R11: ffffed100d050316 R12: 0000000000000003
R13: 0000000000000003 R14: ffffffff8dc168d8 R15: ffff88802555db80
FS:  00007f5d923f66c0(0000) GS:ffff888125fbc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdd7ed0468 CR3: 0000000025d40000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 insert_inode_locked+0x2d8/0x5d0 fs/inode.c:1866
 ntfs_new_inode+0xc8/0x100 fs/ntfs3/fsntfs.c:1675
 ntfs_create_inode+0x606/0x32a0 fs/ntfs3/inode.c:1309
 ntfs_mkdir+0x3d/0x50 fs/ntfs3/namei.c:215
 vfs_mkdir+0x512/0x5b0 fs/namei.c:5099
 do_mkdirat+0x276/0x4b0 fs/namei.c:5133
 __do_sys_mkdir fs/namei.c:5160 [inline]
 __se_sys_mkdir fs/namei.c:5158 [inline]
 __x64_sys_mkdir+0x6c/0x80 fs/namei.c:5158
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d9418f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5d923f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f5d943e5fa0 RCX: 00007f5d9418f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000300
RBP: 00007f5d94213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5d943e6038 R14: 00007f5d943e5fa0 R15: 00007ffd83983218
 </TASK>