INFO: task syz-executor.5:8654 blocked for more than 143 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:29216 pid: 8654 ppid:  3637 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 rwsem_down_read_slowpath+0x5c1/0xb00 kernel/locking/rwsem.c:1087
 __down_read_common kernel/locking/rwsem.c:1252 [inline]
 __down_read kernel/locking/rwsem.c:1261 [inline]
 down_read+0xe2/0x450 kernel/locking/rwsem.c:1501
 inode_lock_shared include/linux/fs.h:770 [inline]
 lookup_slow fs/namei.c:1701 [inline]
 walk_component+0x332/0x5a0 fs/namei.c:1993
 lookup_last fs/namei.c:2450 [inline]
 path_lookupat+0x1ba/0x840 fs/namei.c:2474
 filename_lookup+0x1ce/0x590 fs/namei.c:2503
 user_path_at_empty+0x42/0x60 fs/namei.c:2876
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3380 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x1ea/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f117cc89279
RSP: 002b:00007f117dd3c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f117cd9c050 RCX: 00007f117cc89279
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000000
RBP: 00007f117cce3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe329ab1bf R14: 00007f117dd3c300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:8655 blocked for more than 144 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:28792 pid: 8655 ppid:  3637 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 rwsem_down_write_slowpath+0x697/0x11e0 kernel/locking/rwsem.c:1182
 __down_write_common kernel/locking/rwsem.c:1297 [inline]
 __down_write_common kernel/locking/rwsem.c:1294 [inline]
 __down_write kernel/locking/rwsem.c:1306 [inline]
 down_write_nested+0x139/0x150 kernel/locking/rwsem.c:1663
 inode_lock_nested include/linux/fs.h:795 [inline]
 filename_create+0x1aa/0x4a0 fs/namei.c:3725
 do_mkdirat+0x94/0x300 fs/namei.c:3969
 __do_sys_mkdir fs/namei.c:4000 [inline]
 __se_sys_mkdir fs/namei.c:3998 [inline]
 __x64_sys_mkdir+0xf2/0x140 fs/namei.c:3998
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f117cc89279
RSP: 002b:00007f117dd1b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f117cd9c120 RCX: 00007f117cc89279
RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000020000080
RBP: 00007f117cce3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe329ab1bf R14: 00007f117dd1b300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:8660 blocked for more than 145 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:29480 pid: 8660 ppid:  3637 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 rwsem_down_read_slowpath+0x5c1/0xb00 kernel/locking/rwsem.c:1087
 __down_read_common kernel/locking/rwsem.c:1252 [inline]
 __down_read kernel/locking/rwsem.c:1261 [inline]
 down_read+0xe2/0x450 kernel/locking/rwsem.c:1501
 inode_lock_shared include/linux/fs.h:770 [inline]
 lookup_slow fs/namei.c:1701 [inline]
 walk_component+0x332/0x5a0 fs/namei.c:1993
 lookup_last fs/namei.c:2450 [inline]
 path_lookupat+0x1ba/0x840 fs/namei.c:2474
 filename_lookup+0x1ce/0x590 fs/namei.c:2503
 user_path_at_empty+0x42/0x60 fs/namei.c:2876
 user_path_at include/linux/namei.h:57 [inline]
 __do_sys_chdir fs/open.c:514 [inline]
 __se_sys_chdir fs/open.c:508 [inline]
 __x64_sys_chdir+0xb7/0x260 fs/open.c:508
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f117cc89279
RSP: 002b:00007f117b9fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 00007f117cd9c1f0 RCX: 00007f117cc89279
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0
RBP: 00007f117cce3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe329ab1bf R14: 00007f117b9fe300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8bd86870 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8bd86570 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffffffff8bd873c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492
3 locks held by kworker/u4:5/1080:
2 locks held by getty/3280:
 #0: ffff888026916098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
2 locks held by syz-executor.5/8646:
1 lock held by syz-executor.5/8654:
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:770 [inline]
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: lookup_slow fs/namei.c:1701 [inline]
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: walk_component+0x332/0x5a0 fs/namei.c:1993
2 locks held by syz-executor.5/8655:
 #0: ffff888033830460 (sb_writers#13){.+.+}-{0:0}, at: filename_create+0xf1/0x4a0 fs/namei.c:3718
 #1: ffff8880365566c0 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:795 [inline]
 #1: ffff8880365566c0 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: filename_create+0x1aa/0x4a0 fs/namei.c:3725
1 lock held by syz-executor.5/8660:
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:770 [inline]
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: lookup_slow fs/namei.c:1701 [inline]
 #0: ffff8880365566c0 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: walk_component+0x332/0x5a0 fs/namei.c:1993
2 locks held by syz-executor.1/11592:

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:369
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3635 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:os_xsave arch/x86/kernel/fpu/xstate.h:187 [inline]
RIP: 0010:save_fpregs_to_fpstate+0xd6/0x270 arch/x86/kernel/fpu/core.c:118
Code: 00 45 85 ff 0f 84 31 01 00 00 e8 e5 f4 4d 00 31 d2 48 89 ef 4c 89 e6 e8 f8 95 00 00 48 8d 7d 40 44 89 e0 44 89 f2 48 0f c7 27 <45> 31 e4 31 ff 44 89 e6 e8 fd f0 4d 00 45 85 e4 0f 85 07 01 00 00
RSP: 0018:ffffc90000157ab0 EFLAGS: 00000012
RAX: 0000000000000007 RBX: ffff888023a898c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff812ce4e8 RDI: ffff888023a89940
RBP: ffff888023a89900 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000007
R13: ffff888023a898d0 R14: 0000000000000000 R15: 0000000000000001
FS:  0000555556ffb400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe45476a1b8 CR3: 0000000028cc4000 CR4: 0000000000350ee0
Call Trace: