rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (171 ticks this GP) idle=712/1/0x4000000000000000 softirq=172748/172748 fqs=50 
	(t=10501 jiffies g=340709 q=269)
rcu: rcu_preempt kthread starved for 9644 jiffies! g340709 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:28816 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:
NMI backtrace for cpu 1
CPU: 1 PID: 2381 Comm: syz-executor.4 Not tainted 5.12.0-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_check_gp_kthread_starvation.cold+0x1cc/0x1d1 kernel/rcu/tree_stall.h:478
 print_cpu_stall kernel/rcu/tree_stall.h:622 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:699 [inline]
 rcu_pending kernel/rcu/tree.c:3911 [inline]
 rcu_sched_clock_irq.cold+0x3ec/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:632
RIP: 0010:ieee80211_rx_h_mgmt_check net/mac80211/rx.c:3098 [inline]
RIP: 0010:ieee80211_rx_handlers+0x3558/0xae60 net/mac80211/rx.c:3788
Code: e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e ff 5d 00 00 48 8b 44 24 08 bf 03 00 00 00 8b a8 18 12 00 00 89 ee e8 e8 5c 02 f9 <83> fd 03 0f 84 9a 31 00 00 e8 2a 55 02 f9 48 8b 44 24 18 48 c1 e8
RSP: 0018:ffffc90000dc08f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000080 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888080763880 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffff88726d78 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000004c R14: ffff8880840fd000 R15: 0000000000000000
 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3824 [inline]
 ieee80211_prepare_and_rx_handle+0x22ad/0x5070 net/mac80211/rx.c:4538
 __ieee80211_rx_handle_packet net/mac80211/rx.c:4636 [inline]
 ieee80211_rx_list+0x930/0x2680 net/mac80211/rx.c:4820
 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4843
 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:632
RIP: 0010:__schedule+0x0/0x23e0 kernel/sched/core.c:5026
Code: 5b 5d 41 5c c3 e8 50 0b a2 f8 eb d9 e8 49 0b a2 f8 e9 4b ff ff ff e8 df 0a a2 f8 e9 02 ff ff ff e8 f5 0a a2 f8 e9 6c ff ff ff <55> 48 89 e5 41 57 48 8d 85 78 ff ff ff 41 56 49 c7 c6 80 52 03 00
RSP: 0018:ffffc900016afcc0 EFLAGS: 00000206
RAX: 000000000008a52b RBX: ffff888080763880 RCX: 1ffffffff204c61a
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed10100ec710 R08: 0000000000000001 R09: ffffffff9025f8af
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 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:632
RIP: 0010:perf_event__header_size+0x0/0x1c0 kernel/events/core.c:1898
Code: 24 18 e9 3e fe ff ff e8 ae 10 85 07 4c 89 ef e8 f6 80 28 00 e9 c3 fd ff ff e8 8c 80 28 00 e9 f9 fc ff ff 0f 1f 80 00 00 00 00 <41> 56 41 55 41 54 55 48 89 fd 53 e8 b0 47 e3 ff 48 8d bd 90 00 00
RSP: 0018:ffffc900016afd98 EFLAGS: 00000212
RAX: 0000000000004474 RBX: 0000000000000000 RCX: ffffc90012dfe000
RDX: 0000000000040000 RSI: ffffffff8194e4a1 RDI: ffff888037398ba0
RBP: ffff8880b9c3a408 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8194e494 R11: 0000000000000000 R12: 0000000000000008
R13: 0000000000000000 R14: ffff8880b9c3a450 R15: ffff888037398ba0
 __do_sys_perf_event_open+0x1cf9/0x2df0 kernel/events/core.c:12317
 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:00007f3c4d4aa188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 000000002025c000
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056c038
R13: 00007fff8eff1b7f R14: 00007f3c4d4aa300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 2381 Comm: syz-executor.4 Not tainted 5.12.0-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:632
RIP: 0010:ieee80211_rx_h_mgmt_check net/mac80211/rx.c:3098 [inline]
RIP: 0010:ieee80211_rx_handlers+0x3558/0xae60 net/mac80211/rx.c:3788
Code: e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e ff 5d 00 00 48 8b 44 24 08 bf 03 00 00 00 8b a8 18 12 00 00 89 ee e8 e8 5c 02 f9 <83> fd 03 0f 84 9a 31 00 00 e8 2a 55 02 f9 48 8b 44 24 18 48 c1 e8
RSP: 0018:ffffc90000dc08f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000080 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888080763880 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000
R10: ffffffff88726d78 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000004c R14: ffff8880840fd000 R15: 0000000000000000
 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3824 [inline]
 ieee80211_prepare_and_rx_handle+0x22ad/0x5070 net/mac80211/rx.c:4538
 __ieee80211_rx_handle_packet net/mac80211/rx.c:4636 [inline]
 ieee80211_rx_list+0x930/0x2680 net/mac80211/rx.c:4820
 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4843
 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:632
RIP: 0010:__schedule+0x0/0x23e0 kernel/sched/core.c:5026
Code: 5b 5d 41 5c c3 e8 50 0b a2 f8 eb d9 e8 49 0b a2 f8 e9 4b ff ff ff e8 df 0a a2 f8 e9 02 ff ff ff e8 f5 0a a2 f8 e9 6c ff ff ff <55> 48 89 e5 41 57 48 8d 85 78 ff ff ff 41 56 49 c7 c6 80 52 03 00
RSP: 0018:ffffc900016afcc0 EFLAGS: 00000206
RAX: 000000000008a52b RBX: ffff888080763880 RCX: 1ffffffff204c61a
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed10100ec710 R08: 0000000000000001 R09: ffffffff9025f8af
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 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:632
RIP: 0010:perf_event__header_size+0x0/0x1c0 kernel/events/core.c:1898
Code: 24 18 e9 3e fe ff ff e8 ae 10 85 07 4c 89 ef e8 f6 80 28 00 e9 c3 fd ff ff e8 8c 80 28 00 e9 f9 fc ff ff 0f 1f 80 00 00 00 00 <41> 56 41 55 41 54 55 48 89 fd 53 e8 b0 47 e3 ff 48 8d bd 90 00 00
RSP: 0018:ffffc900016afd98 EFLAGS: 00000212
RAX: 0000000000004474 RBX: 0000000000000000 RCX: ffffc90012dfe000
RDX: 0000000000040000 RSI: ffffffff8194e4a1 RDI: ffff888037398ba0
RBP: ffff8880b9c3a408 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8194e494 R11: 0000000000000000 R12: 0000000000000008
R13: 0000000000000000 R14: ffff8880b9c3a450 R15: ffff888037398ba0
 __do_sys_perf_event_open+0x1cf9/0x2df0 kernel/events/core.c:12317
 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:00007f3c4d4aa188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 000000002025c000
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000056c038
R13: 00007fff8eff1b7f R14: 00007f3c4d4aa300 R15: 0000000000022000