------------[ cut here ]------------
kernel BUG at kernel/cgroup/cgroup.c:5219!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-rc2-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:css_release+0xfb/0x100 kernel/cgroup/cgroup.c:5219
Code: b6 3d 05 bf 08 00 00 00 48 89 da e8 9f 5e e1 ff 5b 41 5e 41 5f 5d c3 e8 a3 32 08 00 48 c7 c7 00 33 0c 85 31 c0 e8 35 c2 44 03 <0f> 0b 0f 1f 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18
RSP: 0018:ffffc90000007ba0 EFLAGS: 00010246

RAX: 000000000000003d RBX: ffff888120838468 RCX: 14b885a41f41ce00
RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000
RBP: ffffc90000007bb8 R08: ffffffff8157ac48 R09: ffffed103ee465d1
R10: ffffed103ee465d1 R11: 1ffff1103ee465d0 R12: ffff888120838410
R13: ffff888120869c80 R14: ffff888120838401 R15: ffff888120838418
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4668420130 CR3: 00000001206b5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 percpu_ref_put_many include/linux/percpu-refcount.h:335 [inline]
 percpu_ref_put include/linux/percpu-refcount.h:351 [inline]
 percpu_ref_call_confirm_rcu lib/percpu-refcount.c:163 [inline]
 percpu_ref_switch_to_atomic_rcu+0x60d/0x620 lib/percpu-refcount.c:205
 rcu_do_batch+0x507/0xbc0 kernel/rcu/tree.c:2535
 rcu_core+0x4dc/0xef0 kernel/rcu/tree.c:2786
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2803
 __do_softirq+0x24e/0x586 kernel/softirq.c:558
 invoke_softirq+0x70/0xd0 kernel/softirq.c:432
 __irq_exit_rcu+0x4f/0xb0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:116 [inline]
RIP: 0010:acpi_idle_do_entry+0xb8/0x1f0 drivers/acpi/processor_idle.c:556
Code: 8b 1b 48 89 de 48 83 e6 08 31 ff e8 42 b6 bd fc 48 83 e3 08 0f 85 ab 00 00 00 eb 0c e8 11 b1 bd fc 0f 00 2d 4a c9 bc 00 fb f4 <fa> e9 a1 00 00 00 49 83 c6 04 4c 89 f0 48 c1 e8 03 42 8a 04 38 84
RSP: 0018:ffffffff86007be8 EFLAGS: 00000246
RAX: 1ffffffff0c03630 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff8601b180 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff86007c00 R08: ffffffff84b2db3e R09: fffffbfff0c03631
R10: fffffbfff0c03631 R11: 1ffffffff0c03630 R12: 0000000000000001
R13: ffff8881096fc804 R14: ffff8881091ea864 R15: dffffc0000000000
 acpi_idle_enter+0x32d/0x4f0 drivers/acpi/processor_idle.c:691
 cpuidle_enter_state+0x541/0x10e0 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x379/0x5e0 kernel/sched/idle.c:303
 cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:400
 rest_init+0x107/0x130 init/main.c:726
 arch_call_rest_init+0xe/0x10 init/main.c:882
 start_kernel+0x465/0x4d7 init/main.c:1140
 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:546
 x86_64_start_kernel+0x9b/0xa0 arch/x86/kernel/head64.c:527
 secondary_startup_64_no_verify+0xc4/0xcb
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:css_release+0xfb/0x100 kernel/cgroup/cgroup.c:5219
Code: b6 3d 05 bf 08 00 00 00 48 89 da e8 9f 5e e1 ff 5b 41 5e 41 5f 5d c3 e8 a3 32 08 00 48 c7 c7 00 33 0c 85 31 c0 e8 35 c2 44 03 <0f> 0b 0f 1f 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18
RSP: 0018:ffffc90000007ba0 EFLAGS: 00010246
RAX: 000000000000003d RBX: ffff888120838468 RCX: 14b885a41f41ce00
RDX: 0000000000000101 RSI: 0000000000000101 RDI: 0000000000000000
RBP: ffffc90000007bb8 R08: ffffffff8157ac48 R09: ffffed103ee465d1
R10: ffffed103ee465d1 R11: 1ffff1103ee465d0 R12: ffff888120838410
R13: ffff888120869c80 R14: ffff888120838401 R15: ffff888120838418
FS:  0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4668420130 CR3: 00000001206b5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8b 1b                	mov    (%rbx),%ebx
   2:	48 89 de             	mov    %rbx,%rsi
   5:	48 83 e6 08          	and    $0x8,%rsi
   9:	31 ff                	xor    %edi,%edi
   b:	e8 42 b6 bd fc       	callq  0xfcbdb652
  10:	48 83 e3 08          	and    $0x8,%rbx
  14:	0f 85 ab 00 00 00    	jne    0xc5
  1a:	eb 0c                	jmp    0x28
  1c:	e8 11 b1 bd fc       	callq  0xfcbdb132
  21:	0f 00 2d 4a c9 bc 00 	verw   0xbcc94a(%rip)        # 0xbcc972
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	e9 a1 00 00 00       	jmpq   0xd1
  30:	49 83 c6 04          	add    $0x4,%r14
  34:	4c 89 f0             	mov    %r14,%rax
  37:	48 c1 e8 03          	shr    $0x3,%rax
  3b:	42 8a 04 38          	mov    (%rax,%r15,1),%al
  3f:	84                   	.byte 0x84