rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (21 ticks this GP) idle=c76c/1/0x4000000000000000 softirq=23663/23663 fqs=10
rcu: 	(detected by 1, t=10502 jiffies, g=17017, q=158 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7939 Comm: syz.2.596 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:kasan_check_range+0x26/0x2c0
Code: 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f 82 82 02 00 00 <49> b9 00 00 00 00 00 80 ff ff eb 11 cc cc cc f3 0f 1e fa 49 b9 00
RSP: 0018:ffffc90000006600 EFLAGS: 00000006
RAX: 0000000000000001 RBX: 0000000000000012 RCX: ffffffff819cbfea
RDX: 0000000000000001 RSI: 0000000000000012 RDI: ffffe8ff1465a8f8
RBP: ffffc90000006748 R08: ffffe8ff1465a90a R09: 0000000000000003
R10: dffffc0000000000 R11: fffffbfff1719ea2 R12: ffffffff819cbfea
R13: 0000000000000013 R14: ffffffff8b8cf500 R15: ffffe8ff1465a8f8
FS:  00007fe5c31636c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c24df1b CR3: 0000000045cbe000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __asan_memcpy+0x40/0x70
 perf_trace_lock+0x28a/0x3b0
 lock_release+0x3b2/0x3e0
 _raw_spin_unlock_irqrestore+0x70/0x110
 hrtimer_try_to_cancel+0x3be/0x420
 hrtimer_cancel+0x3b/0x50
 cpu_clock_event_stop+0xd9/0x130
 __perf_event_overflow+0x580/0xe40
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 7b 5f 03 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90000007018 EFLAGS: 00000206
RAX: cd2b54a6fff08200 RBX: 0000000000000000 RCX: cd2b54a6fff08200
RDX: 0000000000000000 RSI: ffffffff8dba9991 RDI: ffffffff8be33e00
RBP: ffffffff8172d195 R08: 0000000000000000 R09: ffffffff8172d195
R10: ffffc90000006e60 R11: ffffffff81ac4d00 R12: 0000000000000002
R13: ffffffff8e13a120 R14: 0000000000000000 R15: 0000000000000246
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 __ip_make_skb+0x1336/0x1c80
 ip_push_pending_frames+0x30/0x150
 __icmp_send+0xf87/0x12d0
 ipv4_link_failure+0x64e/0xa30
 arp_error_report+0x118/0x160
 neigh_invalidate+0x235/0x460
 neigh_timer_handler+0x949/0x1150
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 ab 7a 14 f6 e8 16 d7 4b f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000400f860 EFLAGS: 00000286
RAX: cd2b54a6fff08200 RBX: 0000000000000000 RCX: cd2b54a6fff08200
RDX: 0000000000000000 RSI: ffffffff8d9ba2bf RDI: 0000000000000001
RBP: ffffc9000400f910 R08: ffffffff8fa3a937 R09: 1ffffffff1f47526
R10: dffffc0000000000 R11: fffffbfff1f47527 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000801f0c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_count_add+0x6/0x1a0
Code: 24 e8 8e 32 93 00 eb 8c e9 f1 fe ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 53 49 bf 00 00 00 00 00 fc ff df 48 c7 c0 20 23 ac 99 48 c1
RSP: 0018:ffffc9000400f9d8 EFLAGS: 00000a02
RAX: cd2b54a6fff08200 RBX: ffff888020a39cc0 RCX: cd2b54a6fff08200
RDX: 0000000000000000 RSI: ffffffff8dba9991 RDI: 0000000000000001
RBP: 1ffff1100414739b R08: ffffc9000400f7af R09: 0000000000000000
R10: ffffc9000400f7a0 R11: ffffffffa0000854 R12: ffff888020a39cec
R13: dffffc0000000000 R14: 1ffff11004147398 R15: ffff888020a3af48
 schedule+0x15e/0x360
 __futex_wait+0x1c3/0x3e0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe5c238eba9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe5c31630e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fe5c25d5fa8 RCX: 00007fe5c238eba9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe5c25d5fa8
RBP: 00007fe5c25d5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe5c25d6038 R14: 00007ffcafd37630 R15: 00007ffcafd37718
 </TASK>
rcu: rcu_preempt kthread starved for 10475 jiffies! g17017 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:27224 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 7935 Comm: syz.0.595 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:smp_call_function_single+0x3b2/0x590
Code: e8 23 7a 0b 00 41 83 e6 01 75 11 e8 d8 75 0b 00 4d 89 fe eb 3f e8 ce 75 0b 00 eb 3c 4d 89 fe f3 90 43 0f b6 04 2c 84 c0 75 0f <f7> 03 01 00 00 00 74 1d e8 b1 75 0b 00 eb e6 89 d9 80 e1 07 80 c1
RSP: 0018:ffffc9000410fa40 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000410fa88 RCX: ffff888108f81cc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000410fb30 R08: ffffc9000410f8e7 R09: 1ffff92000821f1c
R10: dffffc0000000000 R11: fffff52000821f1d R12: 1ffff92000821f51
R13: dffffc0000000000 R14: 1ffff92000821f4c R15: 1ffff92000821f4c
FS:  000055557ab51500(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c36dfc3 CR3: 0000000045db0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 event_function_call+0x25d/0x970
 perf_event_release_kernel+0x15d/0x510
 perf_release+0x38/0x50
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9163d8eba9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffecbee37b8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f9163fd7da0 RCX: 00007f9163d8eba9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f9163fd7da0 R08: 0000000000000234 R09: 0000001ecbee3aaf
R10: 00000000003ffba8 R11: 0000000000000246 R12: 0000000000021109
R13: 00007f9163fd6090 R14: ffffffffffffffff R15: 00007ffecbee38d0
 </TASK>
