BUG: unable to handle page fault for address: ffffde202333426b #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.2.0-rc1+ #5 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: rcu_gp process_srcu RIP: 0010:iptunnel_xmit_stats include/net/ip_tunnels.h:444 [inline] RIP: 0010:iptunnel_xmit+0x6e5/0x970 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 e2 74 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: 0018:ffff8880ae909878 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff1101199a1340 RCX: 1ffffffff10e9c4d RDX: 1fffe2202333426b RSI: ffffffff83355e3c RDI: ffff1101199a1358 RBP: ffff8880ae9098d8 R08: ffff8880a9918480 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: 00000000000000fc R13: ffff88806b088300 R14: ffff88808b977714 R15: ffff8880925b37c0 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde202333426b CR3: 00000000a9304000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udp_tunnel_xmit_skb+0x236/0x310 net/ipv4/udp_tunnel.c:192 tipc_udp_xmit.isra.0+0x802/0xcc0 net/tipc/udp_media.c:181 tipc_udp_send_msg+0x295/0x4a0 net/tipc/udp_media.c:247 tipc_bearer_xmit_skb+0x16c/0x360 net/tipc/bearer.c:503 tipc_disc_timeout+0x933/0xd60 net/tipc/discover.c:332 call_timer_fn+0x193/0x720 kernel/time/timer.c:1322 expire_timers kernel/time/timer.c:1366 [inline] __run_timers kernel/time/timer.c:1685 [inline] __run_timers kernel/time/timer.c:1653 [inline] run_timer_softirq+0x66f/0x1740 kernel/time/timer.c:1698 __do_softirq+0x25c/0x94c 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+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:70 [inline] RIP: 0010:write_comp_data+0x17/0x70 kernel/kcov.c:123 Code: c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 5d c3 0f 1f 00 65 4c 8b 04 25 c0 fd 01 00 65 8b 05 b8 58 91 7e a9 00 01 1f 00 75 51 <41> 8b 80 e0 12 00 00 83 f8 03 75 45 49 8b 80 e8 12 00 00 45 8b 80 RSP: 0018:ffff8880a9927b68 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000080000001 RBX: 0000000000000001 RCX: ffffffff83355e2e RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff8880a9927b70 R08: ffff8880a9918480 R09: 0000000000000040 R10: 0000000000000040 R11: ffffffff8a67a7e7 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000002ced R15: 00000000000115e3 check_preemption_disabled lib/smp_processor_id.c:16 [inline] debug_smp_processor_id+0x2e/0x280 lib/smp_processor_id.c:57 delay_tsc+0x42/0xc0 arch/x86/lib/delay.c:79 __delay arch/x86/lib/delay.c:161 [inline] __const_udelay+0x59/0x80 arch/x86/lib/delay.c:175 try_check_zero+0x201/0x330 kernel/rcu/srcutree.c:705 srcu_advance_state kernel/rcu/srcutree.c:1142 [inline] process_srcu+0x329/0xe20 kernel/rcu/srcutree.c:1237 process_one_work+0x989/0x1790 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x354/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: CR2: ffffde202333426b ---[ end trace 041a9625f9238f02 ]--- RIP: 0010:iptunnel_xmit_stats include/net/ip_tunnels.h:444 [inline] RIP: 0010:iptunnel_xmit+0x6e5/0x970 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 e2 74 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: 0018:ffff8880ae909878 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff1101199a1340 RCX: 1ffffffff10e9c4d RDX: 1fffe2202333426b RSI: ffffffff83355e3c RDI: ffff1101199a1358 RBP: ffff8880ae9098d8 R08: ffff8880a9918480 R09: ffffed1015d26be0 R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: 00000000000000fc R13: ffff88806b088300 R14: ffff88808b977714 R15: ffff8880925b37c0 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde202333426b CR3: 00000000a9304000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400