R10: 0000000020000000 R11: 0000000000000246 R12: ffffffffffffffff
R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000
Not allocated shadow for addr ffff880100000000 (page ffffea0006000000)
Attempted to access 64 bytes
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1326!
invalid opcode: 0000 [#1] SMP PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 4517 Comm: syz-executor062 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1325
RSP: 0018:ffff88019ad5f578 EFLAGS: 00010086
RAX: 000000000000001c RBX: 0000000000000400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff88019ad5f590 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000040
R13: 0000000000000202 R14: 0000000000000001 R15: 0000000000000040
FS:  0000000001ca9880(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd16f3cfb8 CR3: 00000001a5dec000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmsan_internal_memset_shadow+0x5c/0xd0 mm/kmsan/kmsan.c:171
 __msan_memset+0x73/0xd0 mm/kmsan/kmsan_instr.c:507
 slab_alloc_node mm/slub.c:2735 [inline]
 __kmalloc_node+0xa58/0x1190 mm/slub.c:3832
 kmalloc_node include/linux/slab.h:554 [inline]
 kzalloc_node include/linux/slab.h:712 [inline]
 __get_vm_area_node+0x28e/0x810 mm/vmalloc.c:1402
 __vmalloc_node_range+0x2ad/0x1140 mm/vmalloc.c:1754
 __vmalloc_node mm/vmalloc.c:1804 [inline]
 __vmalloc_node_flags mm/vmalloc.c:1818 [inline]
 vzalloc+0xb2/0xc0 mm/vmalloc.c:1857
 alloc_counters+0x99/0x920 net/ipv6/netfilter/ip6_tables.c:830
 copy_entries_to_user net/ipv4/netfilter/arp_tables.c:686 [inline]
 get_entries net/ipv4/netfilter/arp_tables.c:871 [inline]
 do_arpt_get_ctl+0x7da/0xe60 net/ipv4/netfilter/arp_tables.c:1489
 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
 nf_getsockopt+0x47b/0x4e0 net/netfilter/nf_sockopt.c:122
 ip_getsockopt+0x284/0x3c0 net/ipv4/ip_sockglue.c:1572
 tcp_getsockopt+0x1c1/0x1f0 net/ipv4/tcp.c:3359
 sock_common_getsockopt+0x13a/0x170 net/core/sock.c:2934
 SYSC_getsockopt+0x49b/0x570 net/socket.c:1880
 SyS_getsockopt+0x76/0xa0 net/socket.c:1862
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x4440da
RSP: 002b:00007ffd16f3cfb8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004440da
RDX: 0000000000000061 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffd16f3d0c0 R08: 00007ffd16f3cfcc R09: 0000000001ca9880
R10: 00007ffd16f3d0c0 R11: 0000000000000212 R12: 000000000000c55c
R13: 00000000006ce448 R14: 0000000000000000 R15: 0000000000000000
Code: 75 29 48 c7 c7 fd 92 7d 8a 31 c0 e8 4d 68 86 ff 80 3c 25 e8 03 2c 8b 00 75 11 48 c7 c7 2d 93 7d 8a 31 c0 4c 89 fe e8 32 68 86 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 
RIP: kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1325 RSP: ffff88019ad5f578
---[ end trace 69aa040062397a1a ]---