IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
==================================================================
BUG: KMSAN: uninit-value in slab_alloc_node mm/slub.c:2738 [inline]
BUG: KMSAN: uninit-value in slab_alloc mm/slub.c:2761 [inline]
BUG: KMSAN: uninit-value in __kmalloc_track_caller+0x531/0xc80 mm/slub.c:4365
CPU: 0 PID: 12806 Comm: syz-executor3 Not tainted 4.17.0+ #5
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+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1117
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
 slab_alloc_node mm/slub.c:2738 [inline]
 slab_alloc mm/slub.c:2761 [inline]
 __kmalloc_track_caller+0x531/0xc80 mm/slub.c:4365
 kmemdup+0x95/0x140 mm/util.c:118
 sctp_kmemdup_sysctl_table net/netfilter/nf_conntrack_proto_sctp.c:741 [inline]
 sctp_init_net+0x11d/0x6e0 net/netfilter/nf_conntrack_proto_sctp.c:772
 nf_ct_l4proto_pernet_register_one+0xe5/0x650 net/netfilter/nf_conntrack_proto.c:446
 nf_ct_l4proto_pernet_register+0x135/0x7f0 net/netfilter/nf_conntrack_proto.c:530
 ipv4_net_init+0x5c/0x70 net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c:399
 ops_init+0x5b6/0x770 net/core/net_namespace.c:128
 setup_net+0x273/0xfa0 net/core/net_namespace.c:313
 copy_net_ns+0x464/0x8c0 net/core/net_namespace.c:436
 create_new_namespaces+0x7f5/0xe80 kernel/nsproxy.c:107
 unshare_nsproxy_namespaces+0x23b/0x320 kernel/nsproxy.c:206
 ksys_unshare+0x889/0x10f0 kernel/fork.c:2409
 __do_sys_unshare kernel/fork.c:2477 [inline]
 __se_sys_unshare kernel/fork.c:2475 [inline]
 __x64_sys_unshare+0x59/0x80 kernel/fork.c:2475
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4559f9
RSP: 002b:00007f22dda7ec68 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f22dda7f6d4 RCX: 00000000004559f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000060000000
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004c2325 R14: 00000000004d3328 R15: 0000000000000000

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 [inline]
 kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:189
 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:315
 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan.c:322
 slab_post_alloc_hook mm/slab.h:446 [inline]
 slab_alloc_node mm/slub.c:2753 [inline]
 __kmalloc_node_track_caller+0xb35/0x11b0 mm/slub.c:4395
 __kmalloc_reserve net/core/skbuff.c:138 [inline]
 __alloc_skb+0x2cb/0x9e0 net/core/skbuff.c:206
 alloc_skb include/linux/skbuff.h:988 [inline]
 tcp_send_ack+0x18d/0x900 net/ipv4/tcp_output.c:3600
 tcp_delack_timer_handler+0x5d0/0xac0 net/ipv4/tcp_timer.c:276
 tcp_delack_timer+0x1ae/0x350 net/ipv4/tcp_timer.c:303
 call_timer_fn+0x280/0x5d0 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0xd96/0x11b0 kernel/time/timer.c:1666
 run_timer_softirq+0x43/0x70 kernel/time/timer.c:1692
 __do_softirq+0x592/0x979 kernel/softirq.c:285
==================================================================