------------[ cut here ]------------
kmsan_get_shadow_address_inline(fffffe0000016f08, 8, 1)
WARNING: CPU: 0 PID: 10918 at mm/kmsan/kmsan_instr.c:153 kmsan_get_shadow_address_inline+0x192/0x2e0 mm/kmsan/kmsan_instr.c:153
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 10918 Comm: syz-executor2 Not tainted 4.17.0+ #16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <#DB>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 panic+0x3d0/0x990 kernel/panic.c:184
 __warn+0x40f/0x580 kernel/panic.c:536
 report_bug+0x72a/0x880 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x1c1/0x620 arch/x86/kernel/traps.c:298
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:317
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:997
RIP: 0010:kmsan_get_shadow_address_inline+0x192/0x2e0 mm/kmsan/kmsan_instr.c:153
RSP: 0018:fffffe0000016da8 EFLAGS: 00010082
RAX: 0000000000000037 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffffc90001d9b000 RSI: 0000000000000fbb RDI: 0000000000000fbc
RBP: fffffe0000016df0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff86576dc0 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000008 R15: ffff880192023a80
 __msan_poison_alloca+0xa7/0x1d0 mm/kmsan/kmsan_instr.c:582
 do_debug+0x5b/0x800 arch/x86/kernel/traps.c:723
 debug+0x28/0x50 arch/x86/entry/entry_64.S:1156
RIP: 0010:__get_user_4+0x24/0x30 arch/x86/lib/getuser.S:78
RSP: 0018:ffff8801aa44fc50 EFLAGS: 00000206
RAX: 0000000020000003 RBX: ffff8801aa44fc58 RCX: 0000000000040000
RDX: 0000000000000004 RSI: 000000000000000e RDI: 000000000000000f
RBP: ffff8801aa44fcc0 R08: 0000000000000124 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff88c04280 R12: 0000000000000001
R13: 0000000000000000 R14: ffff880192024358 R15: 0000000000000000
 </#DB>
 rawv6_getsockopt+0x148/0x2d0 net/ipv6/raw.c:1138
 sock_common_getsockopt+0x13f/0x180 net/core/sock.c:2998
netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'.
 __sys_getsockopt+0x48c/0x550 net/socket.c:1940
 __do_sys_getsockopt net/socket.c:1951 [inline]
 __se_sys_getsockopt net/socket.c:1948 [inline]
 __x64_sys_getsockopt+0x15d/0x1c0 net/socket.c:1948
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x455ab9
RSP: 002b:00007fc6dc964c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007fc6dc9656d4 RCX: 0000000000455ab9
RDX: 0000000000000001 RSI: 000000000000003a RDI: 0000000000000014
RBP: 000000000072bea0 R08: 0000000020000000 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 00000000ffffffff
Unknown ioctl 1074025681
R13: 00000000004bc158 R14: 00000000004c96d0 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..