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BUG: KMSAN: uninit-value in tipc_node_find net/tipc/node.c:236 [inline]
BUG: KMSAN: uninit-value in tipc_node_get_mtu+0x200/0x7a0 net/tipc/node.c:185
CPU: 0 PID: 5933 Comm: syz-executor3 Not tainted 4.16.0+ #84
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676
 tipc_node_find net/tipc/node.c:236 [inline]
 tipc_node_get_mtu+0x200/0x7a0 net/tipc/node.c:185
 __tipc_sendmsg+0x1b32/0x41c0 net/tipc/socket.c:1364
 tipc_sendmsg+0xeb/0x140 net/tipc/socket.c:1265
 sock_sendmsg_nosec net/socket.c:630 [inline]
 sock_sendmsg net/socket.c:640 [inline]
 ___sys_sendmsg+0xec0/0x1310 net/socket.c:2046
 __sys_sendmsg net/socket.c:2080 [inline]
 SYSC_sendmsg+0x2a3/0x3d0 net/socket.c:2091
 SyS_sendmsg+0x54/0x80 net/socket.c:2087
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455389
RSP: 002b:00007f4d95765c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4d957666d4 RCX: 0000000000455389
RDX: 0000000000000000 RSI: 0000000020f22000 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000004f3 R14: 00000000006fa768 R15: 0000000000000000

Local variable description: ----dnode@__tipc_sendmsg
Variable was created at:
 __tipc_sendmsg+0x20c/0x41c0 net/tipc/socket.c:1272
 tipc_sendmsg+0xeb/0x140 net/tipc/socket.c:1265
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