general protection fault, probably for non-canonical address 0x1ffffffff194cbb0: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 152 Comm: kworker/u4:4 Not tainted 5.9.0-rc2-next-20200828-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+0x1c1/0x570 arch/x86/kvm/x86.c:7449 Code: 84 d2 0f 85 2b 03 00 00 8b 43 1c 48 8d 7b 20 48 89 fa 48 c1 ea 03 89 05 f9 22 ea 0a 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 <20> 02 00 03 00 00 48 8b 43 20 48 8d 7b 28 48 89 fa 48 c1 ea 03 48 RSP: 0018:ffffc90000007be8 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffffff8ca65d60 RCX: ffffffff815a153b RDX: 1ffffffff194cbb0 RSI: 0000000000000001 RDI: ffffffff8ca65d80 RBP: ffffffff89b35be0 R08: 0000000000000000 R09: ffffffff8c6a5a1f R10: fffffbfff18d4b43 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89aea220 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ba5364a0d8 CR3: 0000000088a58000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 update_pvclock_gtod kernel/time/timekeeping.c:652 [inline] timekeeping_update+0x28a/0x4a0 kernel/time/timekeeping.c:746 timekeeping_advance+0x6ad/0xa40 kernel/time/timekeeping.c:2193 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+0x32a/0x930 kernel/time/hrtimer.c:1650 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __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+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:653 [inline] RIP: 0010:lock_acquire+0x27b/0xad0 kernel/locking/lockdep.c:5008 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 f8 06 00 00 48 83 3d 6a d1 5b 08 00 0f 84 a6 05 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 03 44 24 10 48 c7 RSP: 0018:ffffc90001587b80 EFLAGS: 00000286 RAX: 1ffffffff136c7d9 RBX: ffff8880a8814480 RCX: 00000000dd5ed671 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8c6a59e7 R10: fffffbfff18d4b3c R11: 0000000000000000 R12: 0000000000000002 R13: ffffffff89c67640 R14: 0000000000000000 R15: ffff8880a8814480 rcu_lock_acquire include/linux/rcupdate.h:248 [inline] rcu_read_lock include/linux/rcupdate.h:641 [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: ---[ end trace c23d5cad3705454a ]--- RIP: 0010:update_pvclock_gtod arch/x86/kvm/x86.c:1746 [inline] RIP: 0010:pvclock_gtod_notify+0x1c1/0x570 arch/x86/kvm/x86.c:7449 Code: 84 d2 0f 85 2b 03 00 00 8b 43 1c 48 8d 7b 20 48 89 fa 48 c1 ea 03 89 05 f9 22 ea 0a 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 <20> 02 00 03 00 00 48 8b 43 20 48 8d 7b 28 48 89 fa 48 c1 ea 03 48 RSP: 0018:ffffc90000007be8 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffffff8ca65d60 RCX: ffffffff815a153b RDX: 1ffffffff194cbb0 RSI: 0000000000000001 RDI: ffffffff8ca65d80 RBP: ffffffff89b35be0 R08: 0000000000000000 R09: ffffffff8c6a5a1f R10: fffffbfff18d4b43 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff89aea220 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ba5364a0d8 CR3: 0000000088a58000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400