BUG: memory leak
unreferenced object 0xffff888110d5f080 (size 96):
  comm "syz-executor071", pid 8420, jiffies 4294943829 (age 13.990s)
  hex dump (first 32 bytes):
    05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000088452457>] kmalloc include/linux/slab.h:552 [inline]
    [<0000000088452457>] kzalloc include/linux/slab.h:682 [inline]
    [<0000000088452457>] netlbl_mgmt_add_common+0x3f0/0x670 net/netlabel/netlabel_mgmt.c:221
    [<00000000c4cfb98a>] netlbl_mgmt_adddef+0xef/0x160 net/netlabel/netlabel_mgmt.c:562
    [<00000000eac82196>] genl_family_rcv_msg_doit+0x113/0x180 net/netlink/genetlink.c:739
    [<000000006f889ebc>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
    [<000000006f889ebc>] genl_rcv_msg+0x174/0x2c0 net/netlink/genetlink.c:800
    [<0000000080f9e17f>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2502
    [<000000007b968bca>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
    [<00000000ce27d953>] netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
    [<00000000ce27d953>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1338
    [<000000007699438f>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1927
    [<0000000000f88e3c>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<0000000000f88e3c>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<000000006d3fbd97>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2348
    [<0000000010ab8b62>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2402
    [<000000009d8115dd>] __sys_sendmsg+0x88/0x100 net/socket.c:2435
    [<00000000eada8559>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000c99b078f>] entry_SYSCALL_64_after_hwframe+0x44/0xae