================================================================== 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: 7109 Comm: syz-executor0 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_sendstream+0xfa6/0x11d0 net/tipc/socket.c:1425 tipc_sendstream+0xeb/0x140 net/tipc/socket.c:1399 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: 0033:0x455329 RSP: 002b:00007f91f7367c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f91f73686d4 RCX: 0000000000455329 RDX: 0000000000000000 RSI: 0000000020030000 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004cc R14: 00000000006fa3c0 R15: 0000000000000000 Local variable description: ----dnode@__tipc_sendmsg Variable was created at: __tipc_sendmsg+0x20c/0x41c0 net/tipc/socket.c:1272 __tipc_sendstream+0xfa6/0x11d0 net/tipc/socket.c:1425 ==================================================================