Started in network mode Own node identity fe8000000000000000000000000000bb, cluster identity 4711 ================================================================== BUG: KMSAN: uninit-value in __inet6_bind+0xb35/0x1a30 net/ipv6/af_inet6.c:340 CPU: 1 PID: 8588 Comm: syz-executor5 Not tainted 4.20.0-rc5+ #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x220 lib/dump_stack.c:113 kmsan_report+0x12d/0x290 mm/kmsan/kmsan.c:682 __msan_warning+0x76/0xc0 mm/kmsan/kmsan_instr.c:316 __inet6_bind+0xb35/0x1a30 net/ipv6/af_inet6.c:340 inet6_bind+0x206/0x300 net/ipv6/af_inet6.c:441 kernel_bind+0xc6/0xf0 net/socket.c:3230 udp_sock_create6+0x2ee/0x890 net/ipv6/ip6_udp_tunnel.c:39 udp_sock_create include/net/udp_tunnel.h:61 [inline] tipc_udp_enable+0x166f/0x1d70 net/tipc/udp_media.c:742 tipc_enable_bearer net/tipc/bearer.c:302 [inline] __tipc_nl_bearer_enable+0x1213/0x1da0 net/tipc/bearer.c:897 tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:905 genl_family_rcv_msg net/netlink/genetlink.c:601 [inline] genl_rcv_msg+0x185f/0x1a60 net/netlink/genetlink.c:626 netlink_rcv_skb+0x444/0x640 net/netlink/af_netlink.c:2477 genl_rcv+0x63/0x80 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0xf80/0x1060 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x129d/0x1310 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg net/socket.c:631 [inline] ___sys_sendmsg+0xdbc/0x11d0 net/socket.c:2116 __sys_sendmsg net/socket.c:2154 [inline] __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg+0x305/0x460 net/socket.c:2161 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2161 do_syscall_64+0xcd/0x110 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457679 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5753533c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457679 RDX: 0000000000000000 RSI: 00000000200008c0 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f57535346d4 R13: 00000000004c423b R14: 00000000004d7180 R15: 00000000ffffffff Local variable description: ----udp6_addr@udp_sock_create6 Variable was created at: udp_sock_create6+0x80/0x890 net/ipv6/ip6_udp_tunnel.c:17 udp_sock_create include/net/udp_tunnel.h:61 [inline] tipc_udp_enable+0x166f/0x1d70 net/tipc/udp_media.c:742 ==================================================================