INFO: task syz-executor483:4181 blocked for more than 143 seconds.
      Not tainted 5.15.173-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor483 state:D stack:27744 pid: 4181 ppid:  4165 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 d_wait_lookup+0x1f0/0x2c0 fs/dcache.c:2569
 d_alloc_parallel+0xa5e/0x1390 fs/dcache.c:2651
 __lookup_slow+0x111/0x3d0 fs/namei.c:1648
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
RSP: 002b:00007f558ff95228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6b8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f559008b6b0 R08: 00007fff6f93f2e7 R09: 00007f558ff956c0
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f559008b6bc
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>
INFO: task syz-executor483:4179 blocked for more than 144 seconds.
      Not tainted 5.15.173-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor483 state:D stack:27744 pid: 4179 ppid:  4164 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 d_wait_lookup+0x1f0/0x2c0 fs/dcache.c:2569
 d_alloc_parallel+0xa5e/0x1390 fs/dcache.c:2651
 __lookup_slow+0x111/0x3d0 fs/namei.c:1648
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
RSP: 002b:00007f558ff95228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6b8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f559008b6b0 R08: 00007fff6f93f2e7 R09: 00007f558ff956c0
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f559008b6bc
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>
INFO: task syz-executor483:4180 blocked for more than 145 seconds.
      Not tainted 5.15.173-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor483 state:D stack:27200 pid: 4180 ppid:  4163 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 d_wait_lookup+0x1f0/0x2c0 fs/dcache.c:2569
 d_alloc_parallel+0xa5e/0x1390 fs/dcache.c:2651
 __lookup_slow+0x111/0x3d0 fs/namei.c:1648
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
RSP: 002b:00007f558ff95228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6b8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f559008b6b0 R08: 00007fff6f93f2e7 R09: 00007f558ff956c0
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f559008b6bc
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>
INFO: task syz-executor483:4183 blocked for more than 146 seconds.
      Not tainted 5.15.173-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor483 state:D stack:27744 pid: 4183 ppid:  4166 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 d_wait_lookup+0x1f0/0x2c0 fs/dcache.c:2569
 d_alloc_parallel+0xa5e/0x1390 fs/dcache.c:2651
 __lookup_slow+0x111/0x3d0 fs/namei.c:1648
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
RSP: 002b:00007f558ff95228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6b8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f559008b6b0 R08: 00007fff6f93f2e7 R09: 00007f558ff956c0
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f559008b6bc
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>
INFO: task syz-executor483:4182 blocked for more than 147 seconds.
      Not tainted 5.15.173-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor483 state:D stack:27744 pid: 4182 ppid:  4167 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 d_wait_lookup+0x1f0/0x2c0 fs/dcache.c:2569
 d_alloc_parallel+0xa5e/0x1390 fs/dcache.c:2651
 __lookup_slow+0x111/0x3d0 fs/namei.c:1648
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
RSP: 002b:00007f558ff95228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6b8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f559008b6b0 R08: 00007fff6f93f2e7 R09: 00007f558ff956c0
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f559008b6bc
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8cb1fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by kswapd0/254:
1 lock held by kswapd1/255:
2 locks held by getty/3942:
 #0: ffff88802cfe6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc900025ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
1 lock held by syz-executor483/4176:
1 lock held by syz-executor483/4181:
 #0: ffff8880711f06d0 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
 #0: ffff8880711f06d0 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679
1 lock held by syz-executor483/4170:
1 lock held by syz-executor483/4179:
 #0: ffff8880711f0188 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
 #0: ffff8880711f0188 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679
1 lock held by syz-executor483/4174:
1 lock held by syz-executor483/4180:
 #0: ffff888075574188 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
 #0: ffff888075574188 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679
2 locks held by syz-executor483/4177:
1 lock held by syz-executor483/4183:
 #0: ffff8880711f0c18 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
 #0: ffff8880711f0c18 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679
1 lock held by syz-executor483/4178:
1 lock held by syz-executor483/4182:
 #0: ffff8880755746d0 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
 #0: ffff8880755746d0 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679
2 locks held by dhcpcd/4209:
 #0: ffff8880711b6e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
 #0: ffff8880711b6e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
 #0: ffff8880711b6e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x98/0x230 net/socket.c:1336
 #1: ffffffff8cb24228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
 #1: ffffffff8cb24228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:295
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4177 Comm: syz-executor483 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_is_held_type+0x149/0x180 kernel/locking/lockdep.c:5671
Code: 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 0f 0b 48 c7 c7 80 2a ab 8a e8 23 11 00 00 65 c7
RSP: 0018:ffffc90002f0f3f0 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888078115940
RDX: ffff888078115940 RSI: ffffffff8aab3d20 RDI: ffffffff8af9ed00
RBP: 0000000000000000 R08: ffffffff843a6f5d R09: fffffbfff2131021
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005e1ea0
R13: 000000000000001f R14: 00000000ffffffff R15: ffff8880711f0d10
FS:  00007f558ffb66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005630fa73a680 CR3: 000000007657e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lock_is_held include/linux/lockdep.h:287 [inline]
 xa_entry include/linux/xarray.h:1182 [inline]
 xas_descend+0xe2/0x3a0 lib/xarray.c:204
 xas_load+0xba/0x140 lib/xarray.c:240
 mapping_get_entry mm/filemap.c:1826 [inline]
 pagecache_get_page+0x20f/0x1010 mm/filemap.c:1894
 find_get_page include/linux/pagemap.h:351 [inline]
 do_read_cache_page+0x51/0x1040 mm/filemap.c:3455
 read_mapping_page include/linux/pagemap.h:515 [inline]
 dir_get_page fs/sysv/dir.c:58 [inline]
 sysv_find_entry+0x1b0/0x650 fs/sysv/dir.c:146
 sysv_inode_by_name+0x9e/0x3f0 fs/sysv/dir.c:360
 sysv_lookup+0x63/0xe0 fs/sysv/namei.c:38
 __lookup_slow+0x275/0x3d0 fs/namei.c:1663
 lookup_slow+0x53/0x70 fs/namei.c:1680
 walk_component+0x48c/0x610 fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2455
 filename_lookup+0x230/0x5c0 fs/namei.c:2484
 user_path_at_empty+0x40/0x180 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 vfs_statx+0x106/0x3b0 fs/stat.c:221
 vfs_fstatat fs/stat.c:243 [inline]
 __do_sys_newfstatat fs/stat.c:411 [inline]
 __se_sys_newfstatat fs/stat.c:405 [inline]
 __x64_sys_newfstatat+0x12c/0x1b0 fs/stat.c:405
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f558fff9dc9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f558ffb6228 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f559008b6a8 RCX: 00007f558fff9dc9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f559008b6a0 R08: 00007f558ffb66c0 R09: 00007f558ffb66c0
R10: 0000000000000800 R11: 0000000000000246 R12: 00007f559008b6ac
R13: 0030656c69662f2e R14: 00007f559004e160 R15: 00007fff6f93f2e8
 </TASK>