rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10265 ticks this GP) idle=72e/1/0x4000000000000000 softirq=91539/91544 fqs=176 
	(t=10502 jiffies g=171201 q=1680)
rcu: rcu_preempt kthread starved for 9653 jiffies! g171201 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:28800 pid:   14 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x916/0x23e0 kernel/sched/core.c:5147
 schedule+0xcf/0x270 kernel/sched/core.c:5226
 schedule_timeout+0x14a/0x250 kernel/time/timer.c:1892
 rcu_gp_fqs_loop kernel/rcu/tree.c:2004 [inline]
 rcu_gp_kthread+0xd07/0x2300 kernel/rcu/tree.c:2177
 kthread+0x3b1/0x4a0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7415 Comm: syz-executor.3 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x0/0x80 kernel/kcov.c:269
Code: 39 fe 72 1f 48 83 c2 01 4c 89 44 38 e8 48 c7 44 38 e0 06 00 00 00 48 89 4c 38 f0 4e 89 54 c8 20 48 89 10 c3 66 0f 1f 44 00 00 <53> 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 00 f0 01 00 48
RSP: 0018:ffffc90000dc0040 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88806f076a08 RCX: 0000000000000100
RDX: ffff88801ea28000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8164c7e2 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b9d26400 R14: ffff8880b9d26380 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563cd779cab8 CR3: 000000001786d000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_read_unlock_sched_notrace include/linux/rcupdate.h:795 [inline]
 trace_hrtimer_expire_exit include/trace/events/timer.h:279 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1540 [inline]
 __hrtimer_run_queues+0xa95/0xe40 kernel/time/hrtimer.c:1601
 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:lock_acquire+0x1ef/0x740 kernel/locking/lockdep.c:5480
Code: 72 a7 7e 83 f8 01 0f 85 ee 03 00 00 9c 58 f6 c4 02 0f 85 d9 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90000dc02d0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920001b805c RCX: 00000000141c5a24
RDX: 1ffff11003d4513e RSI: 0000000000000102 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902268a7
R10: fffffbfff2044d14 R11: 0000000000000003 R12: 0000000000000002
R13: ffffffff8bf79320 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:267 [inline]
 rcu_read_lock include/linux/rcupdate.h:657 [inline]
 ip6_rcv_core+0x91/0x1c50 net/ipv6/ip6_input.c:157
 ipv6_rcv+0x75/0x3c0 net/ipv6/ip6_input.c:294
 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5459
 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5573
 netif_receive_skb_internal net/core/dev.c:5678 [inline]
 netif_receive_skb+0x157/0x8e0 net/core/dev.c:5737
 NF_HOOK include/linux/netfilter.h:301 [inline]
 NF_HOOK include/linux/netfilter.h:295 [inline]
 br_pass_frame_up+0x2eb/0x3e0 net/bridge/br_input.c:61
 br_handle_frame_finish+0x678/0x1680 net/bridge/br_input.c:169
 br_nf_hook_thresh+0x2bd/0x350 net/bridge/br_netfilter_hooks.c:1025
 br_nf_pre_routing_finish_ipv6+0x69e/0xd80 net/bridge/br_netfilter_ipv6.c:206
 NF_HOOK include/linux/netfilter.h:301 [inline]
 br_nf_pre_routing_ipv6+0x42f/0x7a0 net/bridge/br_netfilter_ipv6.c:236
 br_nf_pre_routing+0x1622/0x1e60 net/bridge/br_netfilter_hooks.c:505
 nf_hook_entry_hookfn include/linux/netfilter.h:136 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:225 [inline]
 br_handle_frame+0x980/0x1180 net/bridge/br_input.c:368
 __netif_receive_skb_core+0xc4f/0x37f0 net/core/dev.c:5353
 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5457
 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5573
 process_backlog+0x232/0x6c0 net/core/dev.c:6437
 __napi_poll+0xaf/0x440 net/core/dev.c:6985
 napi_poll net/core/dev.c:7052 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7139
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 de 52 41 f8 48 89 ef e8 76 cb 41 f8 e8 d1 bf 61 f8 fb bf 01 00 00 00 <e8> 56 c1 35 f8 65 8b 05 3f c3 e8 76 85 c0 74 02 5d c3 e8 fb 18 e7
RSP: 0018:ffffc90001aef5b0 EFLAGS: 00000202
RAX: 000000000006a831 RBX: 0000000000000000 RCX: 1ffffffff1b925d1
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffff8880b9d35640 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817aec78 R11: 0000000000000000 R12: ffff8880b9d35640
R13: ffff888073cd1c40 R14: 0000000000000000 R15: ffff88801ea28000
 finish_lock_switch kernel/sched/core.c:4093 [inline]
 finish_task_switch.isra.0+0x15d/0x810 kernel/sched/core.c:4210
 context_switch kernel/sched/core.c:4342 [inline]
 __schedule+0x91e/0x23e0 kernel/sched/core.c:5147
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:5307
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:394 [inline]
 zap_pte_range mm/memory.c:1326 [inline]
 zap_pmd_range mm/memory.c:1374 [inline]
 zap_pud_range mm/memory.c:1403 [inline]
 zap_p4d_range mm/memory.c:1424 [inline]
 unmap_page_range+0xf98/0x2650 mm/memory.c:1445
 unmap_single_vma+0x198/0x300 mm/memory.c:1490
 unmap_vmas+0x16d/0x2f0 mm/memory.c:1522
 exit_mmap+0x2a8/0x590 mm/mmap.c:3208
 __mmput+0x122/0x470 kernel/fork.c:1096
 mmput+0x58/0x60 kernel/fork.c:1117
 exit_mm kernel/exit.c:502 [inline]
 do_exit+0xb0a/0x2a60 kernel/exit.c:813
 do_group_exit+0x125/0x310 kernel/exit.c:923
 get_signal+0x47f/0x2150 kernel/signal.c:2835
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:789
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x171/0x280 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: Unable to access opcode bytes at RIP 0x4665af.
RSP: 002b:00007f6064d10188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffea RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000020000480 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc17bedcaf R14: 00007f6064d10300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 7373 Comm: syz-executor.4 Not tainted 5.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:341
 print_cpu_stall kernel/rcu/tree_stall.h:624 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:699 [inline]
 rcu_pending kernel/rcu/tree.c:3911 [inline]
 rcu_sched_clock_irq.cold+0x3f1/0x74b kernel/rcu/tree.c:2649
 update_process_times+0x16d/0x200 kernel/time/timer.c:1796
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1373
 __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
 __hrtimer_run_queues+0x1c0/0xe40 kernel/time/hrtimer.c:1601
 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:ip6_mc_input+0x14b/0xe90 net/ipv6/ip6_input.c:485
Code: 89 c3 89 c6 e8 56 6a b3 f9 85 db 74 1d e8 9d 62 b3 f9 0f b6 1d 06 82 f3 05 31 ff 89 de e8 3d 69 b3 f9 84 db 0f 84 ff 06 00 00 <e8> 80 62 b3 f9 4d 85 ff 0f 85 fe 02 00 00 48 8d 45 70 48 89 04 24
RSP: 0018:ffffc900000078e8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88806c1e9c40 RDI: 0000000000000003
RBP: ffff888066778780 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff87c1812c R11: 0000000000000000 R12: 1ffff92000000f21
R13: ffff888066778790 R14: 0000000000000000 R15: ffff888068463000
 dst_input include/net/dst.h:458 [inline]
 ip6_sublist_rcv_finish+0x9a/0x2c0 net/ipv6/ip6_input.c:85
 ip6_list_rcv_finish.constprop.0+0x715/0xaf0 net/ipv6/ip6_input.c:142
 ip6_sublist_rcv net/ipv6/ip6_input.c:307 [inline]
 ipv6_list_rcv+0x350/0x490 net/ipv6/ip6_input.c:342
 __netif_receive_skb_list_ptype net/core/dev.c:5502 [inline]
 __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5550
 __netif_receive_skb_list net/core/dev.c:5602 [inline]
 netif_receive_skb_list_internal+0x777/0xd70 net/core/dev.c:5712
 netif_receive_skb_list+0x54/0x5b0 net/core/dev.c:5764
 ieee80211_rx_napi+0x344/0x3d0 net/mac80211/rx.c:4931
 ieee80211_rx include/net/mac80211.h:4528 [inline]
 ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235
 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:784
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559
 invoke_softirq kernel/softirq.c:433 [inline]
 __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:finish_task_switch.isra.0+0x17f/0x810 kernel/sched/core.c:4212
Code: 4c 89 e7 e8 f3 23 ca 07 48 b8 00 00 00 00 00 fc ff df 65 4c 8b 24 25 00 f0 01 00 49 8d bc 24 18 15 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 5a 84 c0 74 08 3c 03 0f 8e 5a 04 00 00 41 81 a4 24 18
RSP: 0018:ffffc90001c3f278 EFLAGS: 00000a06
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1ffff1100d83d62b RSI: 0000000000000002 RDI: ffff88806c1eb158
RBP: ffffc90001c3f2c0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817aec78 R11: 0000000000000000 R12: ffff88806c1e9c40
R13: ffff888065723880 R14: 0000000000000000 R15: ffff88806c1e9c40
 context_switch kernel/sched/core.c:4342 [inline]
 __schedule+0x91e/0x23e0 kernel/sched/core.c:5147
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5535
 irqentry_exit+0x31/0x80 kernel/entry/common.c:426
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647
RIP: 0010:rcu_preempt_read_enter kernel/rcu/tree_plugin.h:418 [inline]
RIP: 0010:__rcu_read_lock+0x26/0xa0 kernel/rcu/tree_plugin.h:438
Code: 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 53 65 48 8b 1c 25 00 f0 01 00 48 8d bb cc 03 00 00 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 83 83 cc 03 00
RSP: 0018:ffffc90001c3f478 EFLAGS: 00000a03
RAX: dffffc0000000000 RBX: ffff88806c1e9c40 RCX: ffffc90011a94000
RDX: 0000000000000000 RSI: ffffffff8181129c RDI: ffff88806c1ea00c
RBP: 00000000004665d9 R08: ffffffff8ed7e882 R09: 0000000000000001
R10: fffff52000387ea8 R11: 0000000000084087 R12: ffffc90001c3f5a0
R13: 0000000000000000 R14: ffff88806c1e9c40 R15: ffff88813fffb700
 rcu_read_lock include/linux/rcupdate.h:655 [inline]
 is_bpf_text_address+0x11/0x160 kernel/bpf/core.c:704
 kernel_text_address kernel/extable.c:151 [inline]
 kernel_text_address+0xbd/0xf0 kernel/extable.c:120
 __kernel_text_address+0x9/0x30 kernel/extable.c:105
 unwind_get_return_address arch/x86/kernel/unwind_orc.c:318 [inline]
 unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:313
 arch_stack_walk+0x93/0xe0 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
 save_stack+0x151/0x1e0 mm/page_owner.c:119
 __set_page_owner+0x50/0x290 mm/page_owner.c:181
 prep_new_page mm/page_alloc.c:2358 [inline]
 get_page_from_freelist+0x1033/0x2b60 mm/page_alloc.c:3994
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5200
 __alloc_pages_node include/linux/gfp.h:549 [inline]
 alloc_pages_node include/linux/gfp.h:563 [inline]
 __vmalloc_area_node mm/vmalloc.c:2809 [inline]
 __vmalloc_node_range+0x44a/0x970 mm/vmalloc.c:2915
 __vmalloc_node mm/vmalloc.c:2963 [inline]
 __vmalloc+0x69/0x80 mm/vmalloc.c:2977
 bpf_prog_alloc_no_stats+0x39/0x360 kernel/bpf/core.c:85
 bpf_prog_alloc+0x28/0x1a0 kernel/bpf/core.c:119
 bpf_prog_load+0x656/0x1f40 kernel/bpf/syscall.c:2165
 __do_sys_bpf+0x1272/0x4f40 kernel/bpf/syscall.c:4411
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1565899188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665d9
RDX: 0000000000000070 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0
R13: 00007ffc97568a4f R14: 00007f1565899300 R15: 0000000000022000