general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 107 Comm: kworker/u4:3 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:pvclock_gtod_notify+0x0/0x3e0 arch/x86/kvm/x86.c:7405
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da8c70 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffffffff8b7f8c18 RSI: 0000000000000000 RDI: ffffffff894a82f8
RBP: ffffffff894a82f8 R08: ffffffff814f2abb R09: fffffbfff1674e9f
R10: fffffbfff1674e9f R11: 0000000000000000 R12: 0000000000000000
R13: 00000000ffffffff R14: 1ffffffff129505f R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000005e492000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 notifier_call_chain kernel/notifier.c:83 [inline]
 __raw_notifier_call_chain kernel/notifier.c:361 [inline]
 raw_notifier_call_chain+0xe7/0x170 kernel/notifier.c:368
 update_pvclock_gtod kernel/time/timekeeping.c:578 [inline]
 timekeeping_update+0x281/0x3f0 kernel/time/timekeeping.c:672
 timekeeping_advance+0x7cd/0x960 kernel/time/timekeeping.c:2119
 tick_sched_do_timer kernel/time/tick-sched.c:147 [inline]
 tick_sched_timer+0xba/0x410 kernel/time/tick-sched.c:1313
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0xb9/0x130 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:lock_acquire+0x1bf/0x720 kernel/locking/lockdep.c:4962
Code: c1 e8 03 80 3c 10 00 74 0c 48 c7 c7 f8 c7 4b 89 e8 a6 03 5a 00 48 83 3d c6 2b f2 07 00 0f 84 09 05 00 00 48 8b 7c 24 10 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 50 0f 85 e0
RSP: 0018:ffffc90001257b80 EFLAGS: 00000286
RAX: 1ffffffff12978ff RBX: 0000000000000000 RCX: 625563f15e59bc1f
RDX: dffffc0000000000 RSI: ffff8880a90c0ca0 RDI: 0000000000000286
RBP: 1ffff11015218189 R08: dffffc0000000000 R09: fffffbfff1674e9f
R10: fffffbfff1674e9f R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: ffff8880a90c0c4c R15: 0000000000000000
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:241
 rcu_read_lock include/linux/rcupdate.h:634 [inline]
 batadv_nc_process_nc_paths+0xc6/0x380 net/batman-adv/network-coding.c:686
 batadv_nc_worker+0x3ee/0x5c0 net/batman-adv/network-coding.c:727
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293
Modules linked in:
---[ end trace 69fe57927872e57f ]---
RIP: 0010:pvclock_gtod_notify+0x0/0x3e0 arch/x86/kvm/x86.c:7405
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90000da8c70 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: dffffc0000000000
RDX: ffffffff8b7f8c18 RSI: 0000000000000000 RDI: ffffffff894a82f8
RBP: ffffffff894a82f8 R08: ffffffff814f2abb R09: fffffbfff1674e9f
R10: fffffbfff1674e9f R11: 0000000000000000 R12: 0000000000000000
R13: 00000000ffffffff R14: 1ffffffff129505f R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000005e492000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400