rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10495 ticks this GP) idle=b394/1/0x4000000000000000 softirq=14463/14473 fqs=4746
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   759990         22            0
rcu: 	cputime:    37411      15078           62   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=7497 q=3653 ncpus=2)
CPU: 0 UID: 0 PID: 6079 Comm: syz.2.40 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+0x0/0x40
Code: a6 ed 08 f6 90 0f 0b 90 90 90 eb c4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 31 c0 83 3d 57 3c 29 04 00 74 1e 83 3d 6a 6c 29 04 00
RSP: 0018:ffffc90000007478 EFLAGS: 00000292
RAX: e8d28b8fa6482500 RBX: 0000000000000003 RCX: e8d28b8fa6482500
RDX: 0000000000000000 RSI: ffffffff8dba99ca RDI: ffffffff8be33e80
RBP: ffffc90000007590 R08: 0000000000000000 R09: ffffffff8a305192
R10: ffffc900000074f0 R11: fffff52000000ea2 R12: ffffc90000007740
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8a305192
FS:  00007f73232de6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 00000000248d4000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000090602
Call Trace:
 <IRQ>
 ip6_pol_route+0x188/0x1180
 fib6_rule_lookup+0x52f/0x6f0
 ip6_route_input+0x6ce/0xa50
 ip6_rcv_finish+0x141/0x2e0
 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:kasan_check_range+0x9b/0x2c0
Code: 01 00 00 00 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb <41> 80 3b 00 0f 85 de 01 00 00 49 ff c3 48 ff c3 75 ee e9 21 01 00
RSP: 0018:ffffc90004fc7728 EFLAGS: 00000286
RAX: f2f200f2f2f2f201 RBX: ffffffffffffffff RCX: ffffffff8b7b3f69
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc90004fc7910
RBP: 0000000000000000 R08: ffffc90004fc791f R09: 1ffff920009f8f23
R10: dffffc0000000000 R11: fffff520009f8f23 R12: 0000000000000002
R13: 0000000000000001 R14: fffff520009f8f24 R15: 1ffff920009f8f22
 __asan_memset+0x22/0x50
 __schedule+0xb9/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 smp_call_function_single+0x470/0x590
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f732238eba9
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:00007f73232de038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f73225d5fa0 RCX: 00007f732238eba9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000300
RBP: 00007f7322411e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f73225d6038 R14: 00007f73225d5fa0 R15: 00007ffed4dce2d8
 </TASK>
