BUG: memory leak
unreferenced object 0xffff888017996300 (size 96):
  comm "syz-executor.4", pid 5543, jiffies 4294995412 (age 17.403s)
  hex dump (first 32 bytes):
    05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01  ................
  backtrace:
    [<0000000021a3b8ab>] kmalloc include/linux/slab.h:552 [inline]
    [<0000000021a3b8ab>] kzalloc include/linux/slab.h:664 [inline]
    [<0000000021a3b8ab>] netlbl_mgmt_add_common+0xb36/0x1770 net/netlabel/netlabel_mgmt.c:221
    [<000000000bc0b9ac>] netlbl_mgmt_add+0x28a/0x3e0 net/netlabel/netlabel_mgmt.c:439
    [<00000000aa330537>] genl_family_rcv_msg_doit+0x22d/0x330 net/netlink/genetlink.c:739
    [<0000000078aaccfd>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
    [<0000000078aaccfd>] genl_rcv_msg+0x33c/0x5a0 net/netlink/genetlink.c:800
    [<0000000042d03088>] netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2496
    [<00000000f9e37bf6>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
    [<00000000341499ca>] netlink_unicast_kernel net/netlink/af_netlink.c:1306 [inline]
    [<00000000341499ca>] netlink_unicast+0x53a/0x7e0 net/netlink/af_netlink.c:1332
    [<00000000da9f27b4>] netlink_sendmsg+0x860/0xda0 net/netlink/af_netlink.c:1921
    [<0000000011a769c8>] sock_sendmsg_nosec net/socket.c:651 [inline]
    [<0000000011a769c8>] sock_sendmsg+0x150/0x190 net/socket.c:671
    [<000000007bcb24fc>] ____sys_sendmsg+0x709/0x870 net/socket.c:2353
    [<00000000ae5edee6>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2407
    [<00000000b15c3c7c>] __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440
    [<00000000a31a0145>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
    [<0000000022ff2b3b>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: leak checking failed