rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=6de/1/0x4000000000000000 softirq=216729/216729 fqs=0 
	(t=10500 jiffies g=389953 q=119)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g389953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=212158
rcu: rcu_preempt kthread starved for 10500 jiffies! g389953 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:29096 pid:   14 ppid:     2 flags:0x00004000
Call Trace:
 context_switch kernel/sched/core.c:4322 [inline]
 __schedule+0x911/0x21b0 kernel/sched/core.c:5073
 schedule+0xcf/0x270 kernel/sched/core.c:5152
 schedule_timeout+0x14a/0x250 kernel/time/timer.c:1892
 rcu_gp_fqs_loop kernel/rcu/tree.c:2005 [inline]
 rcu_gp_kthread+0xd07/0x2250 kernel/rcu/tree.c:2178
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 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 0
CPU: 0 PID: 26097 Comm: syz-executor.0 Not tainted 5.12.0-rc6-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+0x1c7/0x1e4 kernel/rcu/tree_stall.h:478
 print_cpu_stall kernel/rcu/tree_stall.h:620 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:697 [inline]
 rcu_pending kernel/rcu/tree.c:3830 [inline]
 rcu_sched_clock_irq.cold+0x4f2/0x11dd kernel/rcu/tree.c:2650
 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:1369
 __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+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:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline]
RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:854 [inline]
RIP: 0010:kvm_wait+0xb2/0x100 arch/x86/kernel/kvm.c:837
Code: 89 74 24 0c 48 89 3c 24 e8 4b c6 47 00 8b 74 24 0c 48 8b 3c 24 eb 82 e8 6c cb 47 00 e9 07 00 00 00 0f 00 2d a0 98 36 08 fb f4 <eb> 98 e9 07 00 00 00 0f 00 2d 90 98 36 08 f4 eb bf 89 74 24 0c 48
RSP: 0018:ffffc900019df800 EFLAGS: 00000202
RAX: 000000000000c00d RBX: 0000000000000000 RCX: 1ffffffff1f538fa
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffffff8c088300 R08: 0000000000000001 R09: ffffffff8fa998a7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: fffffbfff1811060 R14: 0000000000000001 R15: ffff8880b9c35f40
 pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x8b8/0xb40 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [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]
 alloc_vmap_area+0xba3/0x1e10 mm/vmalloc.c:1215
 __get_vm_area_node+0x128/0x380 mm/vmalloc.c:2096
 __vmalloc_node_range+0xcb/0x170 mm/vmalloc.c:2571
 alloc_thread_stack_node kernel/fork.c:244 [inline]
 dup_task_struct kernel/fork.c:864 [inline]
 copy_process+0x4c9b/0x71a0 kernel/fork.c:1948
 kernel_clone+0xe7/0xab0 kernel/fork.c:2500
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2617
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467a21
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007ffe3e93d088 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f931edae700 RCX: 0000000000467a21
RDX: 00007f931edae9d0 RSI: 00007f931edae2f0 RDI: 00000000003d0f00
RBP: 00007ffe3e93d2c0 R08: 00007f931edae700 R09: 00007f931edae700
R10: 00007f931edae9d0 R11: 0000000000000206 R12: 00007ffe3e93d13e
R13: 00007ffe3e93d13f R14: 00007f931edae300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 26097 Comm: syz-executor.0 Not tainted 5.12.0-rc6-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+0x222/0x2a7 kernel/rcu/tree_stall.h:341
 print_cpu_stall kernel/rcu/tree_stall.h:622 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:697 [inline]
 rcu_pending kernel/rcu/tree.c:3830 [inline]
 rcu_sched_clock_irq.cold+0x4f7/0x11dd kernel/rcu/tree.c:2650
 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:1369
 __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+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:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline]
RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:854 [inline]
RIP: 0010:kvm_wait+0xb2/0x100 arch/x86/kernel/kvm.c:837
Code: 89 74 24 0c 48 89 3c 24 e8 4b c6 47 00 8b 74 24 0c 48 8b 3c 24 eb 82 e8 6c cb 47 00 e9 07 00 00 00 0f 00 2d a0 98 36 08 fb f4 <eb> 98 e9 07 00 00 00 0f 00 2d 90 98 36 08 f4 eb bf 89 74 24 0c 48
RSP: 0018:ffffc900019df800 EFLAGS: 00000202
RAX: 000000000000c00d RBX: 0000000000000000 RCX: 1ffffffff1f538fa
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffffff8c088300 R08: 0000000000000001 R09: ffffffff8fa998a7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: fffffbfff1811060 R14: 0000000000000001 R15: ffff8880b9c35f40
 pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x8b8/0xb40 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [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]
 alloc_vmap_area+0xba3/0x1e10 mm/vmalloc.c:1215
 __get_vm_area_node+0x128/0x380 mm/vmalloc.c:2096
 __vmalloc_node_range+0xcb/0x170 mm/vmalloc.c:2571
 alloc_thread_stack_node kernel/fork.c:244 [inline]
 dup_task_struct kernel/fork.c:864 [inline]
 copy_process+0x4c9b/0x71a0 kernel/fork.c:1948
 kernel_clone+0xe7/0xab0 kernel/fork.c:2500
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2617
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467a21
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007ffe3e93d088 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f931edae700 RCX: 0000000000467a21
RDX: 00007f931edae9d0 RSI: 00007f931edae2f0 RDI: 00000000003d0f00
RBP: 00007ffe3e93d2c0 R08: 00007f931edae700 R09: 00007f931edae700
R10: 00007f931edae9d0 R11: 0000000000000206 R12: 00007ffe3e93d13e
R13: 00007ffe3e93d13f R14: 00007f931edae300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 26099 Comm: syz-executor.1 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x78f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1525
Code: bb a4 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb a4 3c 00 00 <31> ff 44 89 fe e8 07 8c 55 fc 45 84 ff 0f 84 77 ff ff ff e8 49 85
RSP: 0018:ffffc90000dc0ba8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88808294b1e0 RCX: 0000000000000100
RDX: 0000000000000004 RSI: ffffffff851e6be3 RDI: ffff88808294ee84
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff851e6c19 R11: 0000000000000000 R12: ffff8880886d5c80
R13: ffff88805f32b410 R14: ffff88805f32b1e0 R15: 0000000000000000
FS:  00007f34b0553700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30e24000 CR3: 000000009dbea000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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:345
 invoke_softirq kernel/softirq.c:221 [inline]
 __irq_exit_rcu kernel/softirq.c:422 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:434
 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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191
Code: 74 24 10 e8 ea fb 53 f8 48 89 ef e8 12 b2 54 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 03 80 48 f8 65 8b 05 ac 4a fc 76 85 c0 74 0a 5b 5d c3 e8 60 3b
RSP: 0018:ffffc900019ff4d8 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1f53582
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffffff900472a0 R08: 0000000000000001 R09: ffffffff8fa998a7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000009
R13: 0000000000000009 R14: dead000000000100 R15: dffffc0000000000
 __debug_check_no_obj_freed lib/debugobjects.c:997 [inline]
 debug_check_no_obj_freed+0x20c/0x420 lib/debugobjects.c:1018
 free_pages_prepare mm/page_alloc.c:1276 [inline]
 free_pcp_prepare+0x297/0x400 mm/page_alloc.c:1310
 free_unref_page_prepare mm/page_alloc.c:3205 [inline]
 free_unref_page+0x12/0x1d0 mm/page_alloc.c:3253
 kasan_depopulate_vmalloc_pte+0x5c/0x70 mm/kasan/shadow.c:369
 apply_to_pte_range mm/memory.c:2414 [inline]
 apply_to_pmd_range mm/memory.c:2450 [inline]
 apply_to_pud_range mm/memory.c:2478 [inline]
 apply_to_p4d_range mm/memory.c:2506 [inline]
 __apply_to_page_range+0x645/0xdf0 mm/memory.c:2533
 kasan_release_vmalloc+0xa7/0xc0 mm/kasan/shadow.c:479
 __purge_vmap_area_lazy+0x8f9/0x1c50 mm/vmalloc.c:1381
 _vm_unmap_aliases.part.0+0x3d6/0x4e0 mm/vmalloc.c:1784
 _vm_unmap_aliases mm/vmalloc.c:1758 [inline]
 vm_unmap_aliases+0x47/0x50 mm/vmalloc.c:1807
 change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1732
 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline]
 set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1935
 bpf_jit_binary_lock_ro include/linux/filter.h:851 [inline]
 bpf_int_jit_compile+0xe11/0x11b0 arch/x86/net/bpf_jit_comp.c:2329
 bpf_prog_select_runtime+0x576/0x9f0 kernel/bpf/core.c:1868
 bpf_prog_load+0xe75/0x1f40 kernel/bpf/syscall.c:2218
 __do_sys_bpf+0x1272/0x4f40 kernel/bpf/syscall.c:4393
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
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:00007f34b0553188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000035 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00000000004bfbb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffd303d881f R14: 00007f34b0553300 R15: 0000000000022000