BUG: unable to handle kernel paging request at ffffde2022c74283
#PF error: [normal kernel read fault]
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 30051 Comm: syz-executor.4 Not tainted 5.1.0-rc7+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:iptunnel_xmit_stats include/net/ip_tunnels.h:444 [inline]
RIP: 0010:iptunnel_xmit+0x6ed/0x980 net/ipv4/ip_tunnel_core.c:94
Code: c1 e9 03 80 3c 11 00 0f 85 72 02 00 00 48 03 1c c5 60 00 6c 88 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 02 00 00 48 8d 7b 10 4d 63 e4 48 b8 00 00 00
RSP: 0000:ffff8880ae807888 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff1101163a1400 RCX: 1ffffffff10d800c
RDX: 1fffe22022c74283 RSI: ffffffff833180ac RDI: ffff1101163a1418
RBP: ffff8880ae8078e8 R08: ffff888065360680 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 00000000000000fc
R13: ffff88805e6b2700 R14: ffff88808afe9754 R15: ffff8880a8615e40
FS:  0000000000d5e940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffde2022c74283 CR3: 000000005eedf000 CR4: 00000000001406f0
Call Trace:
 <IRQ>
 udp_tunnel_xmit_skb+0x236/0x310 net/ipv4/udp_tunnel.c:191
 tipc_udp_xmit.isra.0+0x805/0xcc0 net/tipc/udp_media.c:181
 tipc_udp_send_msg+0x295/0x4a0 net/tipc/udp_media.c:247
 tipc_bearer_xmit_skb+0x172/0x360 net/tipc/bearer.c:503
 tipc_disc_timeout+0x933/0xd60 net/tipc/discover.c:332
 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694
 __do_softirq+0x266/0x95a kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x1/0x20 kernel/kcov.c:189
Code: fe ff ff 5d c3 0f 1f 40 00 55 0f b7 d6 0f b7 f7 bf 03 00 00 00 48 89 e5 48 8b 4d 08 e8 d8 fe ff ff 5d c3 66 0f 1f 44 00 00 55 <89> f2 89 fe bf 05 00 00 00 48 89 e5 48 8b 4d 08 e8 ba fe ff ff 5d
RSP: 0000:ffff8880a93afb10 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff888065360680 RBX: 0000000000000003 RCX: ffffffff81a29c5f
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffff8880a93afc00 R08: ffff888065360680 R09: fffff94000380787
R10: fffff94000380786 R11: ffffea0001c03c33 R12: ffffea0001c03c00
R13: 0000000000000003 R14: 0000000000000001 R15: ffff8880a93afc68
 do_wp_page+0x38e/0x1500 mm/memory.c:2544
 handle_pte_fault mm/memory.c:3826 [inline]
 __handle_mm_fault+0x22e8/0x3ec0 mm/memory.c:3934
 handle_mm_fault+0x43f/0xb30 mm/memory.c:3971
 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline]
 __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1541
 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143
RIP: 0033:0x40bf4a
Code: 74 28 41 8b 07 85 c0 0f 85 f0 00 00 00 41 83 c6 01 48 81 c5 a0 00 00 00 41 83 fe 10 75 d7 bf 92 e4 4b 00 31 c0 e8 e6 58 ff ff <c6> 45 f8 01 44 89 75 f4 48 89 ef c6 45 15 00 c7 45 fc 00 00 00 00
RSP: 002b:00007ffe1066a210 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 000000000073bf0c RCX: 00007ffe1066a2c8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: 000000000073bf0c R08: 00007ffe1066a2d0 R09: 00000000007400e8
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000073bf00
R13: 0000000000000003 R14: 0000000000000000 R15: 000000000073bf0c
Modules linked in:
CR2: ffffde2022c74283
---[ end trace 9837a117c90d2416 ]---
RIP: 0010:iptunnel_xmit_stats include/net/ip_tunnels.h:444 [inline]
RIP: 0010:iptunnel_xmit+0x6ed/0x980 net/ipv4/ip_tunnel_core.c:94
Code: c1 e9 03 80 3c 11 00 0f 85 72 02 00 00 48 03 1c c5 60 00 6c 88 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 02 00 00 48 8d 7b 10 4d 63 e4 48 b8 00 00 00
RSP: 0000:ffff8880ae807888 EFLAGS: 00010a02
RAX: dffffc0000000000 RBX: ffff1101163a1400 RCX: 1ffffffff10d800c
RDX: 1fffe22022c74283 RSI: ffffffff833180ac RDI: ffff1101163a1418
RBP: ffff8880ae8078e8 R08: ffff888065360680 R09: ffffed1015d05bc8
R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 00000000000000fc
R13: ffff88805e6b2700 R14: ffff88808afe9754 R15: ffff8880a8615e40
FS:  0000000000d5e940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffde2022c74283 CR3: 000000005eedf000 CR4: 00000000001406f0