INFO: task syz-executor372:5182 blocked for more than 143 seconds.
      Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor372 state:D stack:28408 pid:5182  tgid:5181  ppid:5094   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf15/0x5c80 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe7/0x270 kernel/sched/core.c:6817
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b4/0x9c0 kernel/locking/mutex.c:752
 bdev_release+0xcd/0xa80 block/bdev.c:967
 blkdev_release+0x37/0x50 block/fops.c:631
 __fput+0x270/0xb70 fs/file_table.c:376
 task_work_run+0x14c/0x240 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x214/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
 do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f7732c7e7f9
RSP: 002b:00007f7732c3c228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f7732d063e8 RCX: 00007f7732c7e7f9
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f7732d063e0 R08: 00007f7732c3c6c0 R09: 00007f7732c3c6c0
R10: 00007f7732c3c6c0 R11: 0000000000000246 R12: 00007f7732d063ec
R13: 00007f7732cd31b4 R14: 64626e2f7665642f R15: 00007ffcb5ddc238
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf86/0x1210 kernel/hung_task.c:379
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 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: 2803 Comm: kworker/u4:9 Not tainted 6.7.0-rc6-next-20231222-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:cr4_update_irqsoff+0x6a/0xb0 arch/x86/kernel/cpu/common.c:443
Code: 05 13 15 08 0e 85 c0 74 0b 65 8b 05 78 11 d0 7e 85 c0 74 18 48 f7 d6 48 89 f7 48 21 ef 48 09 df 48 39 fd 75 18 48 83 c4 08 5b <5d> c3 65 8b 05 69 0e d0 7e 85 c0 74 dd 90 0f 0b 90 eb d7 65 48 89
RSP: 0018:ffffc9000bd77910 EFLAGS: 00000082
RAX: 0000000000000000 RBX: ffffffff8d326400 RCX: 1ffffffff1e751db
RDX: 0000000000000000 RSI: fffffffffffffeff RDI: 00000000003506f0
RBP: 00000000003506f0 R08: 0000000000000000 R09: fffffbfff1a64c80
R10: ffffffff8d326403 R11: 1ffffffff1a36fa8 R12: 0000000000000000
R13: 000000000003c3e8 R14: ffffffff8d325c80 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005571cce4e548 CR3: 000000000cf78000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 cr4_clear_bits_irqsoff arch/x86/include/asm/tlbflush.h:37 [inline]
 cr4_update_pce_mm arch/x86/mm/tlb.c:483 [inline]
 cr4_update_pce_mm arch/x86/mm/tlb.c:471 [inline]
 switch_mm_irqs_off+0x788/0xbc0 arch/x86/mm/tlb.c:660
 unuse_temporary_mm arch/x86/kernel/alternative.c:1832 [inline]
 __text_poke+0x540/0xca0 arch/x86/kernel/alternative.c:1942
 text_poke_bp_batch+0x493/0x750 arch/x86/kernel/alternative.c:2374
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:2484 [inline]
 text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x1d7/0x400 kernel/jump_label.c:829
 static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:205
 static_key_enable+0x1a/0x20 kernel/jump_label.c:218
 toggle_allocation_gate mm/kfence/core.c:826 [inline]
 toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:818
 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.518 msecs