BUG: unable to handle page fault for address: ffffde202388e233 #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: 0 PID: 31607 Comm: syz-executor.5 Not tainted 5.1.0+ #8 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+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 70 6f 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:ffff8880ae809878 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff11011c471180 RCX: 1ffffffff10dee0c RDX: 1fffe2202388e233 RSI: ffffffff8334ff3c RDI: ffff11011c471198 RBP: ffff8880ae8098d8 R08: ffff88808bcdc400 R09: ffffed1015d06be0 R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: 00000000000000fc R13: ffff88806dc64440 R14: ffff88809856ee54 R15: ffff88809bbbe140 FS: 0000000002a18940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde202388e233 CR3: 000000008893f000 CR4: 00000000001406f0 Call Trace: 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+0x196/0x720 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+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:1067 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:68 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x50 kernel/kcov.c:102 Code: 48 c7 05 ae f4 d4 08 00 00 00 00 e9 a4 e9 ff ff 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 c0 fd 01 00 <65> 8b 15 90 23 91 7e 81 e2 00 01 1f 00 75 2b 8b 90 e0 12 00 00 83 RSP: 0018:ffff888098aa7918 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff88808bcdc400 RBX: ffff888098aa7a90 RCX: 80000000a4356007 RDX: 0000000000000000 RSI: ffffffff819c823f RDI: ffff8880877af700 RBP: ffff888098aa7918 R08: ffff88808bcdc400 R09: fffff94000521ab7 R10: fffff94000521ab6 R11: ffffea000290d5b3 R12: 0000000000000000 R13: 80000000a4356007 R14: 0000000000000020 R15: 0000000000000000 copy_pte_range mm/memory.c:861 [inline] copy_pmd_range mm/memory.c:907 [inline] copy_pud_range mm/memory.c:941 [inline] copy_p4d_range mm/memory.c:963 [inline] copy_page_range+0xa1f/0x1f90 mm/memory.c:1024 dup_mmap kernel/fork.c:587 [inline] dup_mm+0x9c6/0x1370 kernel/fork.c:1331 copy_mm kernel/fork.c:1386 [inline] copy_process.part.0+0x2cd2/0x6710 kernel/fork.c:2006 copy_process kernel/fork.c:1774 [inline] _do_fork+0x25d/0xfe0 kernel/fork.c:2340 __do_sys_clone kernel/fork.c:2447 [inline] __se_sys_clone kernel/fork.c:2441 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2441 do_syscall_64+0x103/0x670 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45737a Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00 RSP: 002b:00007ffdf85ca7f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffdf85ca7f0 RCX: 000000000045737a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffdf85ca830 R08: 0000000000000001 R09: 0000000002a18940 R10: 0000000002a18c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffdf85ca880 Modules linked in: CR2: ffffde202388e233 ---[ end trace f5fa169949b3a6bc ]--- 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 70 6f 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:ffff8880ae809878 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff11011c471180 RCX: 1ffffffff10dee0c RDX: 1fffe2202388e233 RSI: ffffffff8334ff3c RDI: ffff11011c471198 RBP: ffff8880ae8098d8 R08: ffff88808bcdc400 R09: ffffed1015d06be0 R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: 00000000000000fc R13: ffff88806dc64440 R14: ffff88809856ee54 R15: ffff88809bbbe140 FS: 0000000002a18940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde202388e233 CR3: 000000008893f000 CR4: 00000000001406f0