rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=1ca/1/0x4000000000000004 softirq=44383/44384 fqs=5226 
	(t=10500 jiffies g=69085 q=966)
NMI backtrace for cpu 0
CPU: 0 PID: 22620 Comm: syz-executor.4 Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x183/0x1cf kernel/rcu/tree_stall.h:254
 print_cpu_stall kernel/rcu/tree_stall.h:455 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:529 [inline]
 rcu_pending kernel/rcu/tree.c:2736 [inline]
 rcu_sched_clock_irq.cold+0x4dd/0xc13 kernel/rcu/tree.c:2183
 update_process_times+0x32/0x80 kernel/time/timer.c:1639
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:167
 tick_sched_timer+0x53/0x140 kernel/time/tick-sched.c:1296
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x364/0xe40 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1106 [inline]
 smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1131
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:write_comp_data+0x0/0x70 kernel/kcov.c:122
Code: 83 fa 02 75 20 48 8b 88 f8 12 00 00 8b 80 f4 12 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 5d c3 0f 1f 00 <65> 4c 8b 04 25 40 fe 01 00 65 8b 05 58 88 8f 7e a9 00 01 1f 00 75
RSP: 0000:ffff8880ae809470 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff88808fbdd078 RCX: ffffffff85c7df19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffff8880ae809478 R08: ffff88809ff02400 R09: fffffbfff14e9755
R10: ffff88809ff02d58 R11: ffff88809ff02400 R12: dffffc0000000000
R13: ffff88808fbdcd80 R14: ffff88808fbdd110 R15: 0000000000000000
 hhf_dequeue+0xb9/0xa20 net/sched/sch_hhf.c:434
 dequeue_skb net/sched/sch_generic.c:258 [inline]
 qdisc_restart net/sched/sch_generic.c:361 [inline]
 __qdisc_run+0x1e7/0x19d0 net/sched/sch_generic.c:379
 __dev_xmit_skb net/core/dev.c:3533 [inline]
 __dev_queue_xmit+0x16f1/0x3650 net/core/dev.c:3838
 dev_queue_xmit+0x18/0x20 net/core/dev.c:3902
 neigh_resolve_output net/core/neighbour.c:1490 [inline]
 neigh_resolve_output+0x5a5/0x970 net/core/neighbour.c:1470
 neigh_output include/net/neighbour.h:511 [inline]
 ip6_finish_output2+0x1034/0x2520 net/ipv6/ip6_output.c:116
 __ip6_finish_output+0x444/0xa50 net/ipv6/ip6_output.c:142
 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x235/0x7c0 net/ipv6/ip6_output.c:175
 dst_output include/net/dst.h:436 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0xf29/0x1450 net/ipv6/ndisc.c:505
 ndisc_send_rs+0x134/0x6d0 net/ipv6/ndisc.c:699
 addrconf_rs_timer+0x30f/0x680 net/ipv6/addrconf.c:3879
 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers kernel/time/timer.c:1685 [inline]
 __run_timers kernel/time/timer.c:1653 [inline]
 run_timer_softirq+0x697/0x17a0 kernel/time/timer.c:1698
 __do_softirq+0x262/0x98c kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x19b/0x1e0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:537 [inline]
 smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1133
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:91 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:109 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:135 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:166 [inline]
RIP: 0010:check_memory_region_inline mm/kasan/generic.c:182 [inline]
RIP: 0010:check_memory_region+0x118/0x1a0 mm/kasan/generic.c:192
Code: ee 4b 8d 44 25 00 4d 85 c0 75 31 49 89 d9 49 29 c1 e9 68 ff ff ff 5b b8 01 00 00 00 41 5c 41 5d 5d c3 4d 85 c9 74 ef 4d 01 e1 <eb> 09 48 83 c0 01 4c 39 c8 74 e1 80 38 00 74 f2 eb 8c 4d 39 c2 74
RSP: 0000:ffff88805d0ef8e8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffffed100ba1df2b RBX: ffffed100ba1df2c RCX: ffffffff81579995
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88805d0ef958
RBP: ffff88805d0ef900 R08: 1ffff1100ba1df2b R09: ffffed100ba1df2c
R10: ffffed100ba1df2b R11: ffff88805d0ef95f R12: ffffed100ba1df2b
R13: ffffffff89024d88 R14: 1ffff1100ba1df27 R15: ffff88805d0ef998
 __kasan_check_write+0x14/0x20 mm/kasan/common.c:98
 atomic64_try_cmpxchg include/asm-generic/atomic-instrumented.h:1504 [inline]
 atomic_long_try_cmpxchg include/asm-generic/atomic-long.h:436 [inline]
 rwsem_clear_reader_owned kernel/locking/rwsem.c:245 [inline]
 __up_read kernel/locking/rwsem.c:1404 [inline]
 up_read+0x135/0x570 kernel/locking/rwsem.c:1543
 shrink_slab_memcg mm/vmscan.c:661 [inline]
 shrink_slab+0x5c9/0x630 mm/vmscan.c:707
 shrink_node+0x322/0x16b0 mm/vmscan.c:2714
 shrink_zones mm/vmscan.c:2942 [inline]
 do_try_to_free_pages+0x3cb/0x11f0 mm/vmscan.c:3000
 try_to_free_mem_cgroup_pages+0x314/0xa80 mm/vmscan.c:3300
 reclaim_high.constprop.0+0x12f/0x1a0 mm/memcontrol.c:2345
 mem_cgroup_handle_over_high+0x8e/0x130 mm/memcontrol.c:2370
 tracehook_notify_resume include/linux/tracehook.h:197 [inline]
 exit_to_usermode_loop+0x230/0x380 arch/x86/entry/common.c:163
 prepare_exit_to_usermode+0x2ff/0x370 arch/x86/entry/common.c:194
 retint_user+0x8/0x18
RIP: 0033:0x41122f
Code: 0f 84 c8 02 00 00 48 83 bd 78 ff ff ff 00 0f 84 f9 04 00 00 48 8b 95 68 ff ff ff 44 89 95 38 ff ff ff 4c 8d ac 10 00 f7 ff ff <49> 89 85 90 06 00 00 49 8d 85 10 03 00 00 49 89 95 98 06 00 00 41
RSP: 002b:00007ffe04b8bf70 EFLAGS: 00010206
RAX: 00007f3a08d00000 RBX: 0000000000020000 RCX: 000000000045993a
RDX: 0000000000021000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 00007ffe04b8c050 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe04b8c140
R13: 00007f3a08d20700 R14: 0000000000000001 R15: 000000000075bfd4