rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1082 ticks this GP) idle=ca94/1/0x4000000000000000 softirq=14543/14543 fqs=4998
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   259821          2            0
rcu: 	cputime:     6951       3856            7   ==> 10820(ms)
rcu: 	(t=10502 jiffies g=7557 q=4105 ncpus=2)
CPU: 1 UID: 0 PID: 5981 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:debug_lockdep_rcu_enabled+0x2d/0x40
Code: fa 31 c0 83 3d 57 81 28 04 00 74 1e 83 3d 6a b1 28 04 00 74 15 65 48 8b 0c 25 08 d0 a0 92 31 c0 83 b9 ec 0a 00 00 00 0f 94 c0 <e9> 0e dd 02 00 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90
RSP: 0018:ffffc900001e0330 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffc900001e0401 RCX: ffff888020a0d640
RDX: ffffffff9040a801 RSI: 0000000000000000 RDI: ffffc900001e0410
RBP: dffffc0000000000 R08: ffffc900001e0467 R09: 0000000000000000
R10: ffffc900001e0458 R11: fffff5200003c08d R12: ffffc900001e0798
R13: ffffc900001d9000 R14: ffffc900001e0408 R15: ffffffff8172d195
FS:  00007fdeef5826c0(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c28a12b CR3: 0000000024224000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 unwind_next_frame+0x195c/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kmem_cache_free+0x18f/0x400
 ip6_mc_input+0x8de/0xb70
 NF_HOOK+0x30c/0x3a0
 __netif_receive_skb+0xd3/0x380
 process_backlog+0x60e/0x14f0
 __napi_poll+0xc7/0x360
 net_rx_action+0x707/0xe30
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:obj_cgroup_charge_account+0x17e/0x660
Code: 20 50 e8 45 30 72 ff 48 83 c4 08 48 c7 c0 20 23 ac 99 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 74 03 00 00 83 3d 12 e6 80 17 00 <75> 25 48 8d 6b 28 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89
RSP: 0018:ffffc90003e1fb60 EFLAGS: 00000246
RAX: 0000000000000004 RBX: ffff88813663b500 RCX: ffffffff99ac2303
RDX: 0000000000000001 RSI: ffffffff8dba95f5 RDI: ffffffff8be33c00
RBP: 1ffff11026cc76a6 R08: 0000000000000000 R09: ffffffff822b3ccb
R10: dffffc0000000000 R11: fffffbfff1f471e7 R12: 0000000000000005
R13: ffff88813663b530 R14: dffffc0000000000 R15: 0000000000000180
 __memcg_slab_post_alloc_hook+0x3e6/0x7f0
 kmem_cache_alloc_lru_noprof+0x2c7/0x3d0
 __d_alloc+0x36/0x7a0
 d_alloc_pseudo+0x21/0xc0
 alloc_file_pseudo+0xcc/0x210
 sock_alloc_file+0xb8/0x2e0
 __sys_socket+0x13d/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdeee78eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdeef582038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fdeee9d6090 RCX: 00007fdeee78eba9
RDX: 0000000000000106 RSI: 0200000000000001 RDI: 0000000000000002
RBP: 00007fdeee811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdeee9d6128 R14: 00007fdeee9d6090 R15: 00007ffda9897ee8
 </TASK>
