INFO: task syz-executor422:3757 blocked for more than 143 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:23952 pid: 3757 ppid:  3636 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>
INFO: task syz-executor422:3866 blocked for more than 143 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:23952 pid: 3866 ppid:  3637 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>
INFO: task syz-executor422:3870 blocked for more than 143 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:25168 pid: 3870 ppid:  3635 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>
INFO: task syz-executor422:4332 blocked for more than 144 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:24720 pid: 4332 ppid:  3633 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>
INFO: task syz-executor422:5134 blocked for more than 144 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:25008 pid: 5134 ppid:  3638 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>
INFO: task syz-executor422:5150 blocked for more than 144 seconds.
      Not tainted 5.17.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor422 state:D stack:25168 pid: 5150 ppid:  3634 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4995 [inline]
 __schedule+0x926/0x1080 kernel/sched/core.c:6304
 schedule+0x12b/0x1f0 kernel/sched/core.c:6377
 schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 kthread_stop+0xf8/0x200 kernel/kthread.c:709
 ext4_stop_mmpd+0x43/0xb0 fs/ext4/mmp.c:255
 __ext4_fill_super+0x9b13/0xf6f0 fs/ext4/super.c:5505
 ext4_fill_super+0x30d/0x6f0 fs/ext4/super.c:5554
 get_tree_bdev+0x406/0x630 fs/super.c:1292
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:3024 [inline]
 path_mount+0x1986/0x2c30 fs/namespace.c:3354
 do_mount fs/namespace.c:3367 [inline]
 __do_sys_mount fs/namespace.c:3575 [inline]
 __se_sys_mount+0x308/0x3c0 fs/namespace.c:3552
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb99a42adaa
RSP: 002b:00007ffe76902b08 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe76902b60 RCX: 00007fb99a42adaa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe76902b20
RBP: 00007ffe76902b20 R08: 00007ffe76902b60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000200003f8
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000005
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8cb1d460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3276:
 #0: ffff88807eca8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b732e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2075
1 lock held by syz-executor422/3757:
 #0: ffff88807abde0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
1 lock held by syz-executor422/3866:
 #0: ffff888022c360e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
1 lock held by syz-executor422/3870:
 #0: ffff8880205ae0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
1 lock held by syz-executor422/4332:
 #0: ffff88801ad120e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
1 lock held by syz-executor422/5134:
 #0: ffff888076d060e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228
1 lock held by syz-executor422/5150:
 #0: ffff88801d26e0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x820 fs/super.c:228

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:369
 kthread+0x2a3/0x2d0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3683 Comm: kworker/u4:1 Not tainted 5.17.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4716 [inline]
RIP: 0010:__lock_acquire+0x6be/0x2b00 kernel/locking/lockdep.c:4977
Code: cb 0f 88 bd 00 00 00 41 89 de 83 fb 31 0f 83 8e 00 00 00 4b 8d 04 b6 4c 8d b4 c7 80 0a 00 00 4c 89 f0 48 c1 e8 03 0f b6 04 30 <84> c0 75 23 45 8b 36 48 8b 44 24 38 0f b6 04 30 84 c0 75 39 48 8b
RSP: 0018:ffffc9000295f600 EFLAGS: 00000806
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000003
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff888072541d00
RBP: ffffc9000295f750 R08: dffffc0000000000 R09: fffffbfff1ffb7c5
R10: fffffbfff1ffb7c5 R11: 0000000000000000 R12: 0000000000000014
R13: 0000000000000002 R14: ffff8880725427a8 R15: ffff888072542758
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e8c143f680 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5639
 __mutex_lock_common+0x1d5/0x2590 kernel/locking/mutex.c:600
 __mutex_lock kernel/locking/mutex.c:733 [inline]
 mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
 arch_jump_label_transform_queue+0x3f/0xd0 arch/x86/kernel/jump_label.c:136
 __jump_label_update+0x15d/0x350 kernel/jump_label.c:451
 static_key_disable_cpuslocked+0xcc/0x1b0 kernel/jump_label.c:207
 static_key_disable+0x16/0x20 kernel/jump_label.c:215
 toggle_allocation_gate+0x3c8/0x460 mm/kfence/core.c:749
 process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
 worker_thread+0xab1/0x1300 kernel/workqueue.c:2454
 kthread+0x2a3/0x2d0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30
 </TASK>
----------------
Code disassembly (best guess):
   0:	cb                   	lret
   1:	0f 88 bd 00 00 00    	js     0xc4
   7:	41 89 de             	mov    %ebx,%r14d
   a:	83 fb 31             	cmp    $0x31,%ebx
   d:	0f 83 8e 00 00 00    	jae    0xa1
  13:	4b 8d 04 b6          	lea    (%r14,%r14,4),%rax
  17:	4c 8d b4 c7 80 0a 00 	lea    0xa80(%rdi,%rax,8),%r14
  1e:	00
  1f:	4c 89 f0             	mov    %r14,%rax
  22:	48 c1 e8 03          	shr    $0x3,%rax
  26:	0f b6 04 30          	movzbl (%rax,%rsi,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	75 23                	jne    0x51
  2e:	45 8b 36             	mov    (%r14),%r14d
  31:	48 8b 44 24 38       	mov    0x38(%rsp),%rax
  36:	0f b6 04 30          	movzbl (%rax,%rsi,1),%eax
  3a:	84 c0                	test   %al,%al
  3c:	75 39                	jne    0x77
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b