kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 6654 Comm: syz-executor5 Not tainted 4.15.0+ #222
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355
RSP: 0018:ffff8801b13265e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8801db3ed8a8 RCX: ffffffff84db9c11
RDX: 0000000000000452 RSI: 0000000000000000 RDI: ffff8801db3ed74e
RBP: ffff8801b1326830 R08: ffff8801b1326928 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801db3ed6c0
FS:  00007f1666d68700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000a2ed68 CR3: 00000001ade4e002 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip6table_security_hook+0x65/0x80 net/ipv6/netfilter/ip6table_security.c:45
 nf_hook_entry_hookfn include/linux/netfilter.h:120 [inline]
 nf_hook_slow+0xba/0x1a0 net/netfilter/core.c:483
 nf_hook include/linux/netfilter.h:243 [inline]
 NF_HOOK include/linux/netfilter.h:286 [inline]
 ip6_input+0x35c/0x560 net/ipv6/ip6_input.c:327
 ip6_mc_input+0x3a8/0xb10 net/ipv6/ip6_input.c:404
 dst_input include/net/dst.h:449 [inline]
 ip6_rcv_finish+0x297/0x8c0 net/ipv6/ip6_input.c:71
 NF_HOOK include/linux/netfilter.h:288 [inline]
 ipv6_rcv+0xf37/0x1fa0 net/ipv6/ip6_input.c:208
 __netif_receive_skb_core+0x1a41/0x3460 net/core/dev.c:4547
 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4612
 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4686
 netif_receive_skb+0xae/0x390 net/core/dev.c:4710
 tun_rx_batched.isra.52+0x5ee/0x870 drivers/net/tun.c:1559
 tun_get_user+0x25de/0x3940 drivers/net/tun.c:1960
 tun_chr_write_iter+0xbd/0x1c0 drivers/net/tun.c:1988
 call_write_iter include/linux/fs.h:1781 [inline]
 do_iter_readv_writev+0x55c/0x830 fs/read_write.c:653
 do_iter_write+0x154/0x540 fs/read_write.c:932
 vfs_writev+0x18a/0x340 fs/read_write.c:977
 do_writev+0xfc/0x2a0 fs/read_write.c:1012
 SYSC_writev fs/read_write.c:1085 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1082
 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x26/0x9b
RIP: 0033:0x453931
RSP: 002b:00007f1666d67ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 000000000000004a RCX: 0000000000453931
RDX: 0000000000000001 RSI: 00007f1666d67bf0 RDI: 0000000000000012
RBP: 00000000205c9000 R08: 0000000000000012 R09: 0000000000000000
R10: 000000000000004a R11: 0000000000000293 R12: 00000000ffffffff
R13: 000000000000060f R14: 00000000006f9208 R15: 0000000000000000
Code: 41 f6 87 83 00 00 00 04 75 37 e8 5f 0e 95 fc 8b 85 14 fe ff ff 48 8b b5 50 fe ff ff 4c 8d 2c c6 44 8d 60 01 4c 89 e8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 26 03 00 00 4d 89 7d 00 44 89 a5 14 fe ff 
RIP: ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355 RSP: ffff8801b13265e8
---[ end trace c3d34351a84a071e ]---