syzbot

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BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:369 [inline]
BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:599 [inline]
BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:638 [inline]
BUG: KMSAN: uninit-value in tipc_sk_lookup+0x6ad/0xa10 net/tipc/socket.c:2995
 rht_ptr_rcu include/linux/rhashtable.h:369 [inline]
 __rhashtable_lookup include/linux/rhashtable.h:599 [inline]
 rhashtable_lookup include/linux/rhashtable.h:638 [inline]
 tipc_sk_lookup+0x6ad/0xa10 net/tipc/socket.c:2995
 tipc_sk_rcv+0x5db/0x2990 net/tipc/socket.c:2489
 tipc_topsrv_kern_evt net/tipc/topsrv.c:616 [inline]
 tipc_conn_send_to_sock net/tipc/topsrv.c:283 [inline]
 tipc_conn_send_work+0x9de/0x1030 net/tipc/topsrv.c:303
 process_one_work+0xdb9/0x1820 kernel/workqueue.c:2298
 worker_thread+0x10bc/0x21f0 kernel/workqueue.c:2445
 kthread+0x721/0x850 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

Uninit was stored to memory at:
 msg_set_word net/tipc/msg.h:212 [inline]
 msg_set_destport net/tipc/msg.h:619 [inline]
 tipc_msg_create+0x8ad/0x920 net/tipc/msg.c:112
 tipc_topsrv_kern_evt net/tipc/topsrv.c:607 [inline]
 tipc_conn_send_to_sock net/tipc/topsrv.c:283 [inline]
 tipc_conn_send_work+0x6d6/0x1030 net/tipc/topsrv.c:303
 process_one_work+0xdb9/0x1820 kernel/workqueue.c:2298
 worker_thread+0x10bc/0x21f0 kernel/workqueue.c:2445
 kthread+0x721/0x850 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

Uninit was stored to memory at:
 tipc_topsrv_queue_evt+0x3b9/0x770 net/tipc/topsrv.c:329
 tipc_sub_send_event net/tipc/subscr.c:63 [inline]
 tipc_sub_report_overlap+0xab5/0xc80 net/tipc/subscr.c:102
 tipc_service_insert_publ net/tipc/name_table.c:366 [inline]
 tipc_nametbl_insert_publ+0x2315/0x25e0 net/tipc/name_table.c:491
 tipc_nametbl_publish+0x29a/0x5a0 net/tipc/name_table.c:776
 tipc_sk_publish+0x36d/0x740 net/tipc/socket.c:2912
 tipc_sk_join+0x6ef/0xa10 net/tipc/socket.c:3090
 tipc_setsockopt+0xd3f/0x10c0 net/tipc/socket.c:3197
 __sys_setsockopt+0x9d7/0xdc0 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __ia32_sys_setsockopt+0x15d/0x1c0 net/socket.c:2184
 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline]
 __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180
 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Uninit was stored to memory at:
 tipc_sub_subscribe+0x4b7/0xc60 net/tipc/subscr.c:156
 tipc_conn_rcv_sub+0x2d7/0x7e0 net/tipc/topsrv.c:375
 tipc_topsrv_kern_subscr+0x44a/0x550 net/tipc/topsrv.c:579
 tipc_group_create+0x65b/0x9b0 net/tipc/group.c:190
 tipc_sk_join+0x392/0xa10 net/tipc/socket.c:3080
 tipc_setsockopt+0xd3f/0x10c0 net/tipc/socket.c:3197
 __sys_setsockopt+0x9d7/0xdc0 net/socket.c:2176
 __do_sys_setsockopt net/socket.c:2187 [inline]
 __se_sys_setsockopt net/socket.c:2184 [inline]
 __ia32_sys_setsockopt+0x15d/0x1c0 net/socket.c:2184
 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline]
 __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180
 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Local variable sub created at:
 tipc_topsrv_kern_subscr+0xd9/0x550 net/tipc/topsrv.c:562
 tipc_group_create+0x65b/0x9b0 net/tipc/group.c:190

CPU: 1 PID: 19621 Comm: kworker/u4:13 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: tipc_send tipc_conn_send_work
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