BUG: memory leak
unreferenced object 0xffff8881178fe680 (size 64):
  comm "syz-executor.0", pid 8956, jiffies 4295105704 (age 12.990s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 01 02 00 00  ................
  backtrace:
    [<ffffffff8371b9e3>] kmalloc include/linux/slab.h:559 [inline]
    [<ffffffff8371b9e3>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<ffffffff8371b9e3>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<ffffffff83d41496>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<ffffffff83d3fb37>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<ffffffff83682305>] __dev_open+0x175/0x260 net/core/dev.c:1563
    [<ffffffff83682a2a>] __dev_change_flags+0x2fa/0x390 net/core/dev.c:8687
    [<ffffffff83692ae4>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<ffffffff8369a544>] __rtnl_newlink+0xa74/0xdb0 net/core/rtnetlink.c:3451
    [<ffffffff8369a8c9>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<ffffffff83695acc>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<ffffffff837cb197>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2502
    [<ffffffff837ca382>] netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
    [<ffffffff837ca382>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1338
    [<ffffffff837ca818>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1927
    [<ffffffff8363c296>] sock_sendmsg_nosec net/socket.c:654 [inline]
    [<ffffffff8363c296>] sock_sendmsg+0x56/0x80 net/socket.c:674
    [<ffffffff8363c7fc>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2350
    [<ffffffff8364084b>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2404
    [<ffffffff83640948>] __sys_sendmsg+0x88/0x100 net/socket.c:2433