BUG: unable to handle page fault for address: fffffffff10cabec
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 9e90067 P4D 9e90067 PUD 9e92067 PMD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8164 Comm: kworker/u4:5 Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1746 [inline]
RIP: 0010:pvclock_gtod_notify+0x1ad/0x570 arch/x86/kvm/x86.c:7466
Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2b 03 00 00 8b 43 1c 48 8d 7b 20 48 89 fa 48 c1 ea 03 <89> 05 e9 77 00 70 07 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85
RSP: 0018:ffffc90000da8bf0 EFLAGS: 00010802
RAX: 0000000000000018 RBX: ffffffff8d440980 RCX: 0000000000000001
RDX: 1ffffffff1a88134 RSI: 0000000000000008 RDI: ffffffff8d4409a0
RBP: ffffffff89f77140 R08: 0000000000000000 R09: ffffffff8d0c0a1f
R10: fffffbfff1a18143 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89f02dc0
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffff10cabec CR3: 00000000a24b4000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 update_pvclock_gtod kernel/time/timekeeping.c:581 [inline]
 timekeeping_update+0x28a/0x4a0 kernel/time/timekeeping.c:675
 timekeeping_advance+0x6ad/0xa40 kernel/time/timekeeping.c:2122
 tick_do_update_jiffies64.part.0+0x1ec/0x330 kernel/time/tick-sched.c:101
 tick_do_update_jiffies64 kernel/time/tick-sched.c:64 [inline]
 tick_sched_do_timer kernel/time/tick-sched.c:147 [inline]
 tick_sched_timer+0x236/0x2a0 kernel/time/tick-sched.c:1321
 __run_hrtimer kernel/time/hrtimer.c:1524 [inline]
 __hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1588
 hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1650
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x147/0x5f0 arch/x86/kernel/apic/apic.c:1097
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
 sysvec_apic_timer_interrupt+0xb2/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:lock_acquire+0x27b/0xaf0 kernel/locking/lockdep.c:5032
Code: ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 1d 07 00 00 48 83 3d c8 60 a0 08 00 0f 84 73 05 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 03 44 24 08 48 c7
RSP: 0018:ffffc90009cefb88 EFLAGS: 00000286
RAX: 1ffffffff13f8d7d RBX: ffff8880a95c61c0 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: fcdc9d4a1b53d78b RDI: 0000000000000286
RBP: ffffffff8a067f40 R08: 0000000000000000 R09: ffffffff8d0c09e7
R10: fffffbfff1a1813c R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000286
 rcu_lock_acquire include/linux/rcupdate.h:241 [inline]
 rcu_read_lock include/linux/rcupdate.h:634 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:407 [inline]
 batadv_nc_worker+0x12d/0xe50 net/batman-adv/network-coding.c:718
 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
CR2: fffffffff10cabec
---[ end trace 4acd36a06715976c ]---
RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1746 [inline]
RIP: 0010:pvclock_gtod_notify+0x1ad/0x570 arch/x86/kvm/x86.c:7466
Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2b 03 00 00 8b 43 1c 48 8d 7b 20 48 89 fa 48 c1 ea 03 <89> 05 e9 77 00 70 07 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85
RSP: 0018:ffffc90000da8bf0 EFLAGS: 00010802
RAX: 0000000000000018 RBX: ffffffff8d440980 RCX: 0000000000000001
RDX: 1ffffffff1a88134 RSI: 0000000000000008 RDI: ffffffff8d4409a0
RBP: ffffffff89f77140 R08: 0000000000000000 R09: ffffffff8d0c0a1f
R10: fffffbfff1a18143 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89f02dc0
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffff10cabec CR3: 00000000a24b4000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400