===================================================== BUG: KMSAN: uninit-value in get_unique_tuple net/netfilter/nf_nat_core.c:548 [inline] BUG: KMSAN: uninit-value in nf_nat_setup_info+0x628/0x4a40 net/netfilter/nf_nat_core.c:642 get_unique_tuple net/netfilter/nf_nat_core.c:548 [inline] nf_nat_setup_info+0x628/0x4a40 net/netfilter/nf_nat_core.c:642 nfnetlink_parse_nat_setup+0xb86/0xcf0 ctnetlink_parse_nat_setup+0xde/0x390 net/netfilter/nf_conntrack_netlink.c:1845 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1920 [inline] ctnetlink_create_conntrack net/netfilter/nf_conntrack_netlink.c:2325 [inline] ctnetlink_new_conntrack+0x1d5d/0x4240 net/netfilter/nf_conntrack_netlink.c:2452 nfnetlink_rcv_msg+0xe0a/0xf80 net/netfilter/nfnetlink.c:296 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494 nfnetlink_rcv+0x667/0x4740 net/netfilter/nfnetlink.c:654 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2413 ___sys_sendmsg net/socket.c:2467 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2496 __do_sys_sendmsg net/socket.c:2505 [inline] __se_sys_sendmsg net/socket.c:2503 [inline] __x64_sys_sendmsg+0xe2/0x120 net/socket.c:2503 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit was created at: __alloc_pages+0xbbf/0x1090 mm/page_alloc.c:5429 alloc_pages+0xa08/0xd50 alloc_slab_page mm/slub.c:1816 [inline] allocate_slab+0x29e/0x1b00 mm/slub.c:1961 new_slab mm/slub.c:2021 [inline] ___slab_alloc+0xb52/0x1da0 mm/slub.c:3035 __slab_alloc mm/slub.c:3122 [inline] slab_alloc_node mm/slub.c:3213 [inline] slab_alloc mm/slub.c:3255 [inline] kmem_cache_alloc+0xbb3/0x11c0 mm/slub.c:3260 __nf_conntrack_alloc+0x232/0x7f0 net/netfilter/nf_conntrack_core.c:1553 init_conntrack+0x29b/0x24c0 net/netfilter/nf_conntrack_core.c:1634 resolve_normal_ct net/netfilter/nf_conntrack_core.c:1745 [inline] nf_conntrack_in+0x1abc/0x3130 net/netfilter/nf_conntrack_core.c:1903 ipv4_conntrack_local+0x27b/0x430 net/netfilter/nf_conntrack_proto.c:213 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0x184/0x490 net/netfilter/core.c:619 nf_hook include/linux/netfilter.h:262 [inline] __ip_local_out+0x791/0x850 net/ipv4/ip_output.c:115 ip_local_out+0xa3/0x1f0 net/ipv4/ip_output.c:124 iptunnel_xmit+0xaaf/0x10e0 net/ipv4/ip_tunnel_core.c:82 udp_tunnel_xmit_skb+0x511/0x640 net/ipv4/udp_tunnel_core.c:171 geneve_xmit_skb drivers/net/geneve.c:966 [inline] geneve_xmit+0x4712/0x4d00 drivers/net/geneve.c:1077 __netdev_start_xmit include/linux/netdevice.h:4683 [inline] netdev_start_xmit include/linux/netdevice.h:4697 [inline] xmit_one+0x2f4/0x840 net/core/dev.c:3473 dev_hard_start_xmit+0x186/0x440 net/core/dev.c:3489 __dev_queue_xmit+0x2123/0x3310 net/core/dev.c:4116 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4149 neigh_resolve_output+0xc0f/0xca0 net/core/neighbour.c:1528 neigh_output include/net/neighbour.h:549 [inline] ip6_finish_output2+0x23f1/0x2c30 net/ipv6/ip6_output.c:126 __ip6_finish_output+0xf61/0x10b0 net/ipv6/ip6_output.c:191 ip6_finish_output+0x15c/0x4e0 net/ipv6/ip6_output.c:201 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x4b6/0x800 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:451 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xe47/0x1750 net/ipv6/ndisc.c:508 ndisc_send_rs+0xcdf/0xd40 net/ipv6/ndisc.c:702 addrconf_rs_timer+0x709/0x960 net/ipv6/addrconf.c:3911 call_timer_fn+0x81/0x540 kernel/time/timer.c:1421 expire_timers+0x2f5/0x6d0 kernel/time/timer.c:1466 __run_timers+0x66b/0x9f0 kernel/time/timer.c:1734 run_timer_softirq+0x71/0xe0 kernel/time/timer.c:1747 __do_softirq+0x1ee/0x7c5 kernel/softirq.c:558 CPU: 1 PID: 10077 Comm: syz-executor.5 Not tainted 5.17.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================