BUG: unable to handle kernel paging request at ffffde2020ca4403 #PF error: [normal kernel read fault] PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 29145 Comm: syz-executor.3 Not tainted 5.1.0-rc7+ #193 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 a0 6b 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:ffff8880ae907888 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff110106522000 RCX: 1ffffffff10d740d RDX: 1fffe22020ca4403 RSI: ffffffff83317f8c RDI: ffff110106522018 RBP: ffff8880ae9078e8 R08: ffff88804e036280 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 00000000000000fc R13: ffff888063b40300 R14: ffff8880993ed2d4 R15: ffff88808c9ec3c0 FS: 00007f1193df1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde2020ca4403 CR3: 000000008a062000 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: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 RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 kernel/kcov.c:102 Code: 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 00 ee 01 00 65 8b 15 c8 60 91 7e 81 e2 00 01 1f 00 75 2b 8b 90 e0 12 00 00 <83> fa 02 75 20 48 8b 88 e8 12 00 00 8b 80 e4 12 00 00 48 8b 11 48 RSP: 0018:ffff88809cc977b8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff88804e036280 RBX: 0000000000000001 RCX: ffffffff818aedb4 RDX: 0000000000000002 RSI: ffffffff818ae7f7 RDI: 0000000000000005 RBP: ffff88809cc977b8 R08: ffff88804e036280 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: ffffea00010ddf80 R13: 0000000000000000 R14: ffffea00010ddf80 R15: ffff88809cc978d0 filemap_map_pages+0x9d7/0x11e0 mm/filemap.c:2719 do_fault_around mm/memory.c:3411 [inline] do_read_fault mm/memory.c:3445 [inline] do_fault mm/memory.c:3579 [inline] handle_pte_fault mm/memory.c:3810 [inline] __handle_mm_fault+0x31ed/0x3ec0 mm/memory.c:3934 handle_mm_fault+0x43f/0xb30 mm/memory.c:3971 faultin_page mm/gup.c:548 [inline] __get_user_pages+0x7b6/0x1a40 mm/gup.c:751 populate_vma_page_range+0x20d/0x2a0 mm/gup.c:1409 __mm_populate+0x204/0x380 mm/gup.c:1457 mm_populate include/linux/mm.h:2357 [inline] vm_mmap_pgoff+0x213/0x230 mm/util.c:367 ksys_mmap_pgoff+0xf7/0x630 mm/mmap.c:1610 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1193df0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000458da9 RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 000000000073bfa0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 00007f1193df16d4 R13: 00000000004c4ced R14: 00000000004d8900 R15: 00000000ffffffff Modules linked in: CR2: ffffde2020ca4403 ---[ end trace 9280b12d091f0528 ]--- 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 a0 6b 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:ffff8880ae907888 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff110106522000 RCX: 1ffffffff10d740d RDX: 1fffe22020ca4403 RSI: ffffffff83317f8c RDI: ffff110106522018 RBP: ffff8880ae9078e8 R08: ffff88804e036280 R09: ffffed1015d25bc8 R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: 00000000000000fc R13: ffff888063b40300 R14: ffff8880993ed2d4 R15: ffff88808c9ec3c0 FS: 00007f1193df1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffde2020ca4403 CR3: 000000008a062000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400