===================================================== BUG: KMSAN: uninit-value in tipc_nl_compat_name_table_dump+0x88a/0xeb0 net/tipc/netlink_compat.c:934 tipc_nl_compat_name_table_dump+0x88a/0xeb0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xbde/0x1490 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0xbb1/0xd80 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0x11a6/0x2bf0 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x157f/0x1660 net/netlink/genetlink.c:792 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2496 genl_rcv+0x63/0x80 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x1075/0x1340 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x14cf/0x1710 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 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 created at: slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:3251 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1126 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1191 [inline] netlink_sendmsg+0xde3/0x1710 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 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 CPU: 1 PID: 10202 Comm: syz-executor.3 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================