rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10477 ticks this GP) idle=a9e/1/0x4000000000000000 softirq=239834/239836 fqs=0 
	(t=10500 jiffies g=475013 q=5)
rcu: rcu_preempt kthread starved for 10500 jiffies! g475013 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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 28543 Comm: syz-executor.3 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5253 [inline]
RIP: 0010:lock_is_held_type+0x9a/0x140 kernel/locking/lockdep.c:5555
Code: 09 00 00 65 ff 05 d6 0d ec 76 85 c0 7f 12 e9 88 00 00 00 83 c3 01 41 3b 9c 24 f0 09 00 00 7d 7b 48 63 c3 48 89 ee 48 8d 04 80 <4d> 8d 7c c5 00 4c 89 ff e8 09 fe ff ff 85 c0 74 d8 41 83 fe ff 41
RSP: 0018:ffffc90000dc0d58 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8bf796a0 RDI: 0000000000000000
RBP: ffffffff8bf796a0 R08: 0000000000000000 R09: ffffffff8dc95797
R10: fffffbfff1b92af2 R11: 0000000000000000 R12: ffff888025f33880
R13: ffff888025f34278 R14: 00000000ffffffff R15: 7fffffffffffffff
FS:  00007f42a6679700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d021000 CR3: 00000000804c0000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:283 [inline]
 rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x5d3/0x720 kernel/locking/lockdep.c:5523
 seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
 ktime_get+0x8d/0x470 kernel/time/timekeeping.c:827
 clockevents_program_event+0x141/0x370 kernel/time/clockevents.c:326
 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:44
 hrtimer_interrupt+0x414/0xa00 kernel/time/hrtimer.c:1676
 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+0x8e/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:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffffc900182a7610 EFLAGS: 00000206
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff1812788
RDX: 0000000000000001 RSI: ffffffff817acfb1 RDI: ffffffff8132b571
RBP: ffffffff8c093c40 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817acf79 R11: 0000000000000000 R12: 000000000000444c
R13: fffffbfff1812788 R14: 0000000000000001 R15: ffff8880b9d36000
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
 spin_lock include/linux/spinlock.h:354 [inline]
 preload_this_cpu_lock mm/vmalloc.c:1450 [inline]
 alloc_vmap_area+0x1ba/0x1e10 mm/vmalloc.c:1491
 __get_vm_area_node+0x128/0x380 mm/vmalloc.c:2370
 __vmalloc_node_range+0x135/0x970 mm/vmalloc.c:2906
 __vmalloc_node mm/vmalloc.c:2963 [inline]
 vmalloc+0x67/0x80 mm/vmalloc.c:2996
 netlink_alloc_large_skb net/netlink/af_netlink.c:1189 [inline]
 netlink_sendmsg+0x5f0/0xd90 net/netlink/af_netlink.c:1902
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
 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:00007f42a6679188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fff5c4165ef R14: 00007f42a6679300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 28538 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:mac80211_hwsim_tx_frame_no_nl.isra.0+0x737/0x1330 drivers/net/wireless/mac80211_hwsim.c:1515
Code: b6 44 24 08 84 c0 0f 85 a8 06 00 00 e8 e2 bd 4c fc e8 dd bd 4c fc 48 89 d8 48 c1 e8 03 80 3c 28 00 0f 85 93 09 00 00 48 8b 1b <48> 81 fb c0 33 d6 8c 0f 84 f7 04 00 00 e8 b7 bd 4c fc 49 39 de 4c
RSP: 0018:ffffc90000007ba0 EFLAGS: 00000246
RAX: 1ffff11005f2e63c RBX: ffff8880680c31e0 RCX: 0000000000000100
RDX: ffff888026ca54c0 RSI: ffffffff852804d3 RDI: 0000000000000003
RBP: dffffc0000000000 R08: 0000000000000004 R09: 0000000000000000
R10: ffffffff85280549 R11: 0000000000000000 R12: ffff88808f4ba500
R13: ffff88801e063410 R14: ffff88801e0631e0 R15: 0000000000000000
 mac80211_hwsim_tx_frame+0x14f/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1775
 mac80211_hwsim_beacon_tx+0x4ba/0x910 drivers/net/wireless/mac80211_hwsim.c:1829
 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1852
 __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
 __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618
 __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:__nr_to_section include/linux/mmzone.h:1317 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:1405 [inline]
RIP: 0010:get_pageblock_bitmap mm/page_alloc.c:481 [inline]
RIP: 0010:__get_pfnblock_flags_mask mm/page_alloc.c:506 [inline]
RIP: 0010:get_pfnblock_migratetype mm/page_alloc.c:531 [inline]
RIP: 0010:free_unref_page_prepare mm/page_alloc.c:3253 [inline]
RIP: 0010:free_unref_page_prepare mm/page_alloc.c:3246 [inline]
RIP: 0010:free_unref_page+0x4b/0x1d0 mm/page_alloc.c:3298
Code: 16 00 00 48 c7 c0 80 30 79 90 48 ba 00 00 00 00 00 fc ff df 49 01 ec 48 c1 e8 03 49 c1 fc 06 4c 89 e3 48 c1 eb 0f 80 3c 10 00 <0f> 85 33 01 00 00 48 8b 05 f8 f3 c8 0e 48 85 c0 0f 84 08 01 00 00
RSP: 0018:ffffc900183ff560 EFLAGS: 00000246
RAX: 1ffffffff20f2610 RBX: 0000000000000011 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 00000000000000ff RDI: ffffed1011eb2400
RBP: ffffea00023d6440 R08: 0000000000000000 R09: ffffed1011eb2200
R10: 0000000000000001 R11: 0000000000084087 R12: 000000000008f591
R13: 0000000000000000 R14: ffff88801faddeb0 R15: fffff520017d5000
 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:369
 apply_to_pte_range mm/memory.c:2425 [inline]
 apply_to_pmd_range mm/memory.c:2469 [inline]
 apply_to_pud_range mm/memory.c:2505 [inline]
 apply_to_p4d_range mm/memory.c:2541 [inline]
 __apply_to_page_range+0x69a/0x1050 mm/memory.c:2575
 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:479
 __purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1652
 try_purge_vmap_area_lazy mm/vmalloc.c:1671 [inline]
 free_vmap_area_noflush+0xa57/0xd00 mm/vmalloc.c:1713
 free_unmap_vmap_area mm/vmalloc.c:1726 [inline]
 remove_vm_area+0x1cc/0x230 mm/vmalloc.c:2462
 vm_remove_mappings mm/vmalloc.c:2491 [inline]
 __vunmap+0x392/0xb60 mm/vmalloc.c:2556
 __vfree+0x3c/0xd0 mm/vmalloc.c:2613
 vfree+0x5a/0x90 mm/vmalloc.c:2644
 netlink_skb_destructor+0xc2/0x210 net/netlink/af_netlink.c:375
 skb_release_head_state+0x9f/0x250 net/core/skbuff.c:713
 skb_release_all net/core/skbuff.c:724 [inline]
 __kfree_skb net/core/skbuff.c:740 [inline]
 consume_skb net/core/skbuff.c:896 [inline]
 consume_skb+0x89/0x160 net/core/skbuff.c:890
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x53b/0x7d0 net/netlink/af_netlink.c:1338
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927
 sock_sendmsg_nosec net/socket.c:654 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:674
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433
 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:00007fa928533188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fffe3f6696f R14: 00007fa928533300 R15: 0000000000022000