INFO: task syz-executor.2:11088 blocked for more than 143 seconds.
      Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:27984 pid:11088 ppid:  6501 flags:0x00024004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4969 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6250
 schedule+0xd2/0x260 kernel/sched/core.c:6323
 io_uring_cancel_generic+0x53d/0x690 fs/io_uring.c:9850
 io_uring_files_cancel include/linux/io_uring.h:16 [inline]
 do_exit+0x60c/0x2b40 kernel/exit.c:787
 do_group_exit+0x125/0x310 kernel/exit.c:929
 get_signal+0x47d/0x21d0 kernel/signal.c:2820
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fac71442ae9
RSP: 002b:00007fac6e9b8218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fac71555f68 RCX: 00007fac71442ae9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fac71555f68
RBP: 00007fac71555f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac71555f6c
R13: 00007ffc1dd4b31f R14: 00007fac6e9b8300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8b980de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
6 locks held by kworker/u4:2/44:
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
 #0: ffff888010c74138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
 #1: ffffc90001157db0 ((kfence_timer).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
 #2: ffffffff8b82c470 (cpu_hotplug_lock){++++}-{0:0}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
 #3: ffffffff90541f70 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:661
 #4: ffffffff8b84a968 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0xe/0x20 arch/x86/kernel/jump_label.c:145
 #5: ffff888140ba8078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
 #5: ffff888140ba8078 (ptlock_ptr(page)#2){+.+.}-{2:2}, at: __get_locked_pte+0x2b6/0x4d0 mm/memory.c:1736
2 locks held by kworker/u4:4/928:
1 lock held by in:imklog/6166:

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-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+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:295
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2918 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
RIP: 0010:lock_release+0x3c8/0x720 kernel/locking/lockdep.c:5647
Code: 2b 44 24 40 45 39 87 58 0a 00 00 0f 85 29 02 00 00 48 c7 c7 40 f5 8b 89 e8 85 f2 dc 07 b8 ff ff ff ff 65 0f c1 05 58 67 a6 7e <83> f8 01 0f 85 8d 01 00 00 9c 58 f6 c4 02 0f 85 78 01 00 00 48 f7
RSP: 0018:ffffc90000007de8 EFLAGS: 00000057
RAX: 0000000000000001 RBX: cd165870ae833244 RCX: ffffc90000007e38
RDX: 1ffff1100f048d62 RSI: 0000000000010001 RDI: 0000000000000000
RBP: 1ffff92000000fbf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000003 R14: ffff888078246b18 R15: ffff8880782460c0
FS:  00007ffb686fd8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000ee9488 CR3: 0000000023a6c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
 timekeeping_get_delta kernel/time/timekeeping.c:252 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:386 [inline]
 ktime_get_update_offsets_now+0x15e/0x5c0 kernel/time/timekeeping.c:2300
 hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
 hrtimer_interrupt+0x142/0x790 kernel/time/hrtimer.c:1793
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:qlink_to_object mm/kasan/quarantine.c:129 [inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:134 [inline]
RIP: 0010:qlist_free_all+0x7e/0x110 mm/kasan/quarantine.c:165
Code: 58 f6 c4 02 0f 85 a4 00 00 00 48 85 db 74 01 fb 48 85 ed 74 73 48 89 ee 4d 85 e4 4c 89 e7 74 38 48 63 87 80 00 00 00 48 8b 2e <48> 29 c6 9c 5b fa 81 e3 00 02 00 00 74 aa 48 89 74 24 08 48 89 3c
RSP: 0018:ffffc90002947de0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffea0001bfe147
RDX: 0000000000000000 RSI: ffff88807c3a3800 RDI: ffff888010c40600
RBP: ffff8880792081c0 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81350e1a R11: 000000000000003f R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90002947e28 R15: ffffea0000000000
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
 __kasan_slab_alloc+0x92/0xa0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:519 [inline]
 slab_alloc mm/slab.c:3323 [inline]
 kmem_cache_alloc+0x25f/0x530 mm/slab.c:3507
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
 getname_flags include/linux/audit.h:323 [inline]
 getname fs/namei.c:217 [inline]
 __do_sys_mkdir fs/namei.c:3929 [inline]
 __se_sys_mkdir fs/namei.c:3927 [inline]
 __x64_sys_mkdir+0xda/0x140 fs/namei.c:3927
 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+0x44/0xae
RIP: 0033:0x7ffb679b8687
Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcbcd06dd8 EFLAGS: 00000293 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007ffcbcd09e40 RCX: 00007ffb679b8687
RDX: 0000000000000000 RSI: 00000000000001ed RDI: 000055f0847398c0
RBP: 00007ffcbcd06e10 R08: 000055f0833ec3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 000055f0847398c0 R15: 00007ffcbcd07450
 </TASK>
----------------
Code disassembly (best guess):
   0:	2b 44 24 40          	sub    0x40(%rsp),%eax
   4:	45 39 87 58 0a 00 00 	cmp    %r8d,0xa58(%r15)
   b:	0f 85 29 02 00 00    	jne    0x23a
  11:	48 c7 c7 40 f5 8b 89 	mov    $0xffffffff898bf540,%rdi
  18:	e8 85 f2 dc 07       	callq  0x7dcf2a2
  1d:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  22:	65 0f c1 05 58 67 a6 	xadd   %eax,%gs:0x7ea66758(%rip)        # 0x7ea66782
  29:	7e
* 2a:	83 f8 01             	cmp    $0x1,%eax <-- trapping instruction
  2d:	0f 85 8d 01 00 00    	jne    0x1c0
  33:	9c                   	pushfq
  34:	58                   	pop    %rax
  35:	f6 c4 02             	test   $0x2,%ah
  38:	0f 85 78 01 00 00    	jne    0x1b6
  3e:	48                   	rex.W
  3f:	f7                   	.byte 0xf7