general protection fault, probably for non-canonical address 0xdffffc0020000068: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000100000340-0x0000000100000347] CPU: 1 PID: 10303 Comm: syz-executor992 Not tainted 5.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ipvlan_hard_header+0x120/0x160 drivers/net/ipvlan/ipvlan_main.c:361 Code: 5d 41 5e 41 5f 5d c3 45 31 e4 eb e4 e8 29 87 bc fc 49 8d bc 24 48 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 2f 49 8b 9c 24 48 03 00 00 e9 29 ff ff ff e8 98 2e RSP: 0018:ffffc90000da87b0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a28ec178 RDX: 0000000020000068 RSI: ffffffff84b90097 RDI: 0000000100000347 RBP: ffffc90000da87e8 R08: 0000000000000000 R09: 0000000000000060 R10: fffffbfff16a3581 R11: ffffffff8b51ac0f R12: 00000000ffffffff R13: ffff8880a00f0b80 R14: ffff8880a28ec178 R15: 0000000000000060 FS: 0000000001433880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006ddfb0 CR3: 00000000a7f6e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dev_hard_header include/linux/netdevice.h:2987 [inline] neigh_resolve_output net/core/neighbour.c:1482 [inline] neigh_resolve_output+0x552/0x990 net/core/neighbour.c:1467 neigh_output include/net/neighbour.h:510 [inline] ip6_finish_output2+0x109a/0x25c0 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x25e/0x880 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] mld_sendpack+0x9c2/0xed0 net/ipv6/mcast.c:1682 mld_send_initial_cr.part.0+0x114/0x160 net/ipv6/mcast.c:2099 mld_send_initial_cr net/ipv6/mcast.c:2083 [inline] mld_dad_timer_expire+0x42/0x230 net/ipv6/mcast.c:2118 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1146 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:102 [inline] RIP: 0010:__local_bh_enable_ip+0x18e/0x270 kernel/softirq.c:196 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 df 00 00 00 48 83 3d 57 37 6c 08 00 0f 84 8f 00 00 00 fb 66 0f 1f 44 00 00 <65> 8b 05 03 a5 ba 7e 85 c0 74 7f 5b 41 5c 41 5d 5d c3 80 3d c7 93 RSP: 0018:ffffc900061ee998 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1367619 RBX: 0000000000000200 RCX: 0000000000000006 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88808b35aa54 RBP: ffffc900061ee9b0 R08: 1ffffffff16a3582 R09: fffffbfff16a3583 R10: fffffbfff16a3582 R11: ffffffff8b51ac17 R12: ffffffff86737b3c R13: ffff88808b35a1c0 R14: 0000000000000001 R15: dffffc0000000000 local_bh_enable include/linux/bottom_half.h:32 [inline] get_next_corpse net/netfilter/nf_conntrack_core.c:2148 [inline] nf_ct_iterate_cleanup+0x212/0x4e0 net/netfilter/nf_conntrack_core.c:2171 nf_ct_iterate_cleanup_net net/netfilter/nf_conntrack_core.c:2256 [inline] nf_ct_iterate_cleanup_net+0x133/0x190 net/netfilter/nf_conntrack_core.c:2241 masq_device_event+0xb5/0xe0 net/netfilter/nf_nat_masquerade.c:88 notifier_call_chain+0xc2/0x230 kernel/notifier.c:83 __raw_notifier_call_chain kernel/notifier.c:361 [inline] raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:368 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xba/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] dev_close_many+0x32a/0x6c0 net/core/dev.c:1549 dev_close.part.0+0x114/0x1e0 net/core/dev.c:1571 dev_close+0x63/0x80 net/core/dev.c:1574 team_port_add drivers/net/team/team.c:1301 [inline] team_add_slave+0xfba/0x18a0 drivers/net/team/team.c:1962 do_set_master net/core/rtnetlink.c:2468 [inline] do_set_master+0x1dd/0x240 net/core/rtnetlink.c:2441 do_setlink+0xad2/0x3720 net/core/rtnetlink.c:2603 __rtnl_newlink+0xbef/0x1790 net/core/rtnetlink.c:3252 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3377 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5440 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2478 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5458 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x753/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmsg+0x105/0x1d0 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4445f9 Code: e8 8c 07 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 8b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffcd3a49bf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004445f9 RDX: 0000000000000000 RSI: 0000000020001640 RDI: 0000000000000006 RBP: 0000000000019ff5 R08: 00000000bb1414ac R09: 00000000bb1414ac R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000 R13: 00000000004053a0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 572b8e0097cee0a3 ]--- RIP: 0010:ipvlan_hard_header+0x120/0x160 drivers/net/ipvlan/ipvlan_main.c:361 Code: 5d 41 5e 41 5f 5d c3 45 31 e4 eb e4 e8 29 87 bc fc 49 8d bc 24 48 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 2f 49 8b 9c 24 48 03 00 00 e9 29 ff ff ff e8 98 2e RSP: 0018:ffffc90000da87b0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a28ec178 RDX: 0000000020000068 RSI: ffffffff84b90097 RDI: 0000000100000347 RBP: ffffc90000da87e8 R08: 0000000000000000 R09: 0000000000000060 R10: fffffbfff16a3581 R11: ffffffff8b51ac0f R12: 00000000ffffffff R13: ffff8880a00f0b80 R14: ffff8880a28ec178 R15: 0000000000000060 FS: 0000000001433880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006ddfb0 CR3: 00000000a7f6e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400