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: 2937 Comm: kworker/0:43 Not tainted 5.6.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
RIP: 0010:ipvlan_hard_header+0x73/0x110 drivers/net/ipvlan/ipvlan_main.c:362
Code: 48 89 df e8 9f 92 e2 fc 4c 8b 33 4d 85 ff 74 07 e8 22 69 a5 fc eb 25 e8 1b 69 a5 fc 49 8d 9e 48 03 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 6e 92 e2 fc 4c 8b 3b 49 8d 9e 10
RSP: 0018:ffffc90008b8f778 EFLAGS: 00010203
RAX: 0000000020000068 RBX: 0000000100000347 RCX: ffff88809e5be000
RDX: 0000000000000000 RSI: ffff8880a2d08000 RDI: ffff88809247e400
RBP: ffffc90008b8f7b0 R08: 0000000000000000 R09: 0000000000000060
R10: fffffbfff1406518 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88809247e400 R14: 00000000ffffffff R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559de0cf2110 CR3: 00000000a6d22000 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+0x4c5/0x6b0 net/core/neighbour.c:1482
 neigh_output include/net/neighbour.h:510 [inline]
 ip6_finish_output2+0x1057/0x13e0 net/ipv6/ip6_output.c:116
 __ip6_finish_output+0x693/0x8c0 net/ipv6/ip6_output.c:142
 ip6_finish_output+0x52/0x1e0 net/ipv6/ip6_output.c:152
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x2c2/0x3c0 net/ipv6/ip6_output.c:175
 dst_output include/net/dst.h:436 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 mld_sendpack+0x770/0xb80 net/ipv6/mcast.c:1682
 mld_send_initial_cr+0x24d/0x2c0 net/ipv6/mcast.c:2099
 ipv6_mc_dad_complete+0x70/0x3b0 net/ipv6/mcast.c:2106
 addrconf_dad_completed+0x73c/0xc70 net/ipv6/addrconf.c:4176
 addrconf_dad_work+0xd24/0x1c20 net/ipv6/addrconf.c:3962
 process_one_work+0x7f5/0x10f0 kernel/workqueue.c:2264
 worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 603c13bfdb2cf39e ]---
RIP: 0010:ipvlan_hard_header+0x73/0x110 drivers/net/ipvlan/ipvlan_main.c:362
Code: 48 89 df e8 9f 92 e2 fc 4c 8b 33 4d 85 ff 74 07 e8 22 69 a5 fc eb 25 e8 1b 69 a5 fc 49 8d 9e 48 03 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 6e 92 e2 fc 4c 8b 3b 49 8d 9e 10
RSP: 0018:ffffc90008b8f778 EFLAGS: 00010203
RAX: 0000000020000068 RBX: 0000000100000347 RCX: ffff88809e5be000
RDX: 0000000000000000 RSI: ffff8880a2d08000 RDI: ffff88809247e400
RBP: ffffc90008b8f7b0 R08: 0000000000000000 R09: 0000000000000060
R10: fffffbfff1406518 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88809247e400 R14: 00000000ffffffff R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559de0cf2110 CR3: 000000000926d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400