rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (1 GPs behind) idle=bb2/1/0x4000000000000004 softirq=73673/73674 fqs=0 
rcu: 	 (t=10501 jiffies g=94981 q=180)
NMI backtrace for cpu 0
CPU: 0 PID: 2969 Comm: syz-executor.4 Not tainted 4.19.98-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:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 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+0x189/0x1d5 kernel/rcu/tree.c:1340
 print_cpu_stall kernel/rcu/tree.c:1478 [inline]
 check_cpu_stall kernel/rcu/tree.c:1550 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0x5e3/0xd90 kernel/rcu/tree.c:2682
 update_process_times+0x32/0x80 kernel/time/timer.c:1638
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:168
 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1278
 __run_hrtimer kernel/time/hrtimer.c:1401 [inline]
 __hrtimer_run_queues+0x33b/0xdc0 kernel/time/hrtimer.c:1463
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1521
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
 smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1092
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:184
Code: 48 c7 c0 c8 5b f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 6a 66 9c 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 bc ea f2 f9 65 8b 05 55 f8 ab 78
RSP: 0018:ffff8880ae807c98 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b79 RBX: 0000000000000286 RCX: 1ffff110109d9166
RDX: dffffc0000000000 RSI: ffff888084ec8b10 RDI: 0000000000000286
RBP: ffff8880ae807ca8 R08: ffff888084ec8240 R09: ffff888084ec8b30
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a0f10c28
R13: 0000000000000286 R14: ffff8880a0f10c28 R15: 0000000000000000
 spin_unlock_irqrestore include/linux/spinlock.h:384 [inline]
 skb_dequeue+0x12e/0x180 net/core/skbuff.c:2821
 garp_queue_xmit net/802/garp.c:261 [inline]
 garp_join_timer+0x5e/0x80 net/802/garp.c:413
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x54/0x90 kernel/locking/spinlock.c:192
Code: c0 d8 5b f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 6d 6b 9c 01 00 74 20 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 b2 ef f2 f9 65 8b 05 4b fd ab 78 85 c0 74 06 41
RSP: 0018:ffff88801e517368 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11e4b7b RBX: ffff888084ec8240 RCX: 1ffff110109d915c
RDX: dffffc0000000000 RSI: ffff888084ec8ae8 RDI: ffff888084ec8abc
RBP: ffff88801e517370 R08: ffff888084ec8240 R09: ffff888084ec8ae0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae82c240
R13: ffff88804e878200 R14: 0000000000000000 R15: 0000000000000001
 finish_lock_switch kernel/sched/core.c:2576 [inline]
 finish_task_switch+0x146/0x7c0 kernel/sched/core.c:2676
 context_switch kernel/sched/core.c:2829 [inline]
 __schedule+0x86e/0x1dc0 kernel/sched/core.c:3515
 preempt_schedule_irq+0xb5/0x140 kernel/sched/core.c:3742
 retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:150 [inline]
RIP: 0010:qlist_free_all+0x10c/0x150 mm/kasan/quarantine.c:166
Code: 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 4c 8b 78 18 e9 37 ff ff ff e8 63 8d cd ff 48 83 3d 43 98 4f 07 00 74 39 48 89 df 57 9d <0f> 1f 44 00 00 4d 85 ed 75 96 49 c7 46 08 00 00 00 00 49 c7 06 00
RSP: 0018:ffff88801e517590 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000286 RCX: 1ffff110109d915c
RDX: 0000000000000000 RSI: ffff888084ec8ae8 RDI: 0000000000000286
RBP: ffff88801e5175c0 R08: ffff888084ec8240 R09: ffff888084ec8ae0
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880a8830800 R14: ffff88801e5175d0 R15: ffff88812c31c1c0
 quarantine_reduce+0x169/0x1a0 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xa0/0xf0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:490
 kmem_cache_alloc+0x12e/0x700 mm/slab.c:3559
 __d_alloc+0x2e/0x9c0 fs/dcache.c:1610
 d_alloc+0x4d/0x280 fs/dcache.c:1694
 d_alloc_parallel+0xf4/0x1bb0 fs/dcache.c:2441
 lookup_open+0x525/0x1ad0 fs/namei.c:3147
 do_last fs/namei.c:3324 [inline]
 path_openat+0x1e75/0x45e0 fs/namei.c:3534
 do_filp_open+0x1a1/0x280 fs/namei.c:3564
 do_sys_open+0x3fe/0x550 fs/open.c:1088
 __do_sys_openat fs/open.c:1115 [inline]
 __se_sys_openat fs/open.c:1109 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1109
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b349
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efcc461bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efcc461c6d4 RCX: 000000000045b349
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000007c1 R14: 00000000004c9320 R15: 000000000075bf2c