general protection fault, probably for non-canonical address 0xdffffc0020000068: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000100000340-0x0000000100000347] CPU: 0 PID: 9830 Comm: syz-executor007 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 89 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 a8 2e RSP: 0018:ffffc900000077b0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a035a178 RDX: 0000000020000068 RSI: ffffffff84b8fe97 RDI: 0000000100000347 RBP: ffffc900000077e8 R08: 0000000000000000 R09: 0000000000000060 R10: fffffbfff16a3581 R11: ffffffff8b51ac0f R12: 00000000ffffffff R13: ffff8880954ace00 R14: ffff8880a035a178 R15: 0000000000000060 FS: 00000000006e6880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006ddfb0 CR3: 0000000091e61000 CR4: 00000000001406f0 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_cr net/ipv6/mcast.c:1978 [inline] mld_ifc_timer_expire+0x454/0x950 net/ipv6/mcast.c:2477 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:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline] RIP: 0010:console_unlock+0xbb8/0xf00 kernel/printk/printk.c:2481 Code: b3 89 48 c1 e8 03 42 80 3c 30 00 0f 85 e4 02 00 00 48 83 3d c1 65 55 08 00 0f 84 91 01 00 00 e8 be 3c 17 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 6d ff ff ff e8 a9 3c 17 00 48 8b 7d 08 c7 05 7b RSP: 0018:ffffc900067869f0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888094e34100 RBX: 0000000000000200 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffffff815e4b02 RDI: 0000000000000293 RBP: ffffc90006786a78 R08: 1ffffffff16a356c R09: fffffbfff16a356d R10: fffffbfff16a356c R11: ffffffff8b51ab67 R12: 0000000000000000 R13: ffffffff84bee9f0 R14: dffffc0000000000 R15: ffffffff8a355110 vprintk_emit+0x2a0/0x700 kernel/printk/printk.c:1996 vprintk_default+0x28/0x30 kernel/printk/printk.c:2023 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:386 printk+0xba/0xed kernel/printk/printk.c:2056 addrconf_notify.cold+0x2c/0x76 net/ipv6/addrconf.c:3573 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 netdev_state_change net/core/dev.c:1383 [inline] netdev_state_change+0x10d/0x140 net/core/dev.c:1376 do_setlink+0x166a/0x3720 net/core/rtnetlink.c:2814 rtnl_group_changelink net/core/rtnetlink.c:3103 [inline] __rtnl_newlink+0xdd1/0x1790 net/core/rtnetlink.c:3257 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3377 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5436 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2478 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5454 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:00007fff9c05afd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004445f9 RDX: 0000000000000084 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 000000000001a9ed R08: 00000000bb1414ac R09: 00000000bb1414ac R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000 R13: 00000000004053a0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 3b75212a8210e22a ]--- 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 89 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 a8 2e RSP: 0018:ffffc900000077b0 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8880a035a178 RDX: 0000000020000068 RSI: ffffffff84b8fe97 RDI: 0000000100000347 RBP: ffffc900000077e8 R08: 0000000000000000 R09: 0000000000000060 R10: fffffbfff16a3581 R11: ffffffff8b51ac0f R12: 00000000ffffffff R13: ffff8880954ace00 R14: ffff8880a035a178 R15: 0000000000000060 FS: 00000000006e6880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006ddfb0 CR3: 0000000091e61000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400