rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=10341, q=705 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10498 (4294956677-4294946179), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10498 jiffies! g10341 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27224 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 6914 Comm: syz.2.310 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:kasan_check_range+0x9f/0x2c0
Code: 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 00 44 89 dd
RSP: 0000:ffffc90007c277e8 EFLAGS: 00000246
RAX: 1ffff11022aa2501 RBX: ffffffffffffffff RCX: ffffffff89fe2d10
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88816d8bac28
RBP: ffffc90007c279f0 R08: ffff88816d8bac2f R09: 1ffff1102db17585
R10: dffffc0000000000 R11: ffffed102db17585 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffed102db17586 R15: 1ffff1102db17585
FS:  00007f350d4786c0(0000) GS:ffff88818eb38000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30316ff8 CR3: 0000000022454000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ndisc_send_skb+0xc70/0x1510
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0x57/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7f350d4800f0
Code: 48 85 f6 74 0b 48 c7 06 00 00 00 00 48 89 4e 08 5d c3 b8 e5 00 00 00 0f 05 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 50 8b 35 05 cf ff ff f6 05 1b cf ff ff 01 74 6e 83 e6
RSP: 002b:00007f350d477fc8 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 00007f350c69e120 RSI: 00007f350d4780b0 RDI: 0000000000000001
RBP: 00007f350d478040 R08: 7fffffffffffffff R09: 3fffffffffffffff
R10: 4000000000000000 R11: 0000000000000246 R12: 00007f350d479000
R13: 0000000000004284 R14: 00007f350d479038 R15: 0000000000000010
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 104686380190 wd_nsec: 104686382655
