BUG: memory leak
unreferenced object 0xffff888113d1d840 (size 64):
  comm "syz-executor746", pid 8588, jiffies 4294943065 (age 12.610s)
  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 08 00 00 00 01 02 0f 00  ................
  backtrace:
    [<ffffffff8371aa98>] kmalloc include/linux/slab.h:559 [inline]
    [<ffffffff8371aa98>] garp_attr_create net/802/garp.c:187 [inline]
    [<ffffffff8371aa98>] garp_request_join+0x138/0x220 net/802/garp.c:350
    [<ffffffff83d41f46>] vlan_gvrp_request_join+0x96/0xa0 net/8021q/vlan_gvrp.c:34
    [<ffffffff83d40799>] vlan_dev_open+0x1f9/0x330 net/8021q/vlan_dev.c:289
    [<ffffffff83682cc5>] __dev_open+0x175/0x260 net/core/dev.c:1563
    [<ffffffff836833ea>] __dev_change_flags+0x2fa/0x390 net/core/dev.c:8688
    [<ffffffff836934a4>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<ffffffff8369af04>] __rtnl_newlink+0xa74/0xdb0 net/core/rtnetlink.c:3451
    [<ffffffff8369b289>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<ffffffff8369648c>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<ffffffff837cbb27>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2502
    [<ffffffff837cad12>] netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
    [<ffffffff837cad12>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1338
    [<ffffffff837cb1a8>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1927
    [<ffffffff8363cc56>] sock_sendmsg_nosec net/socket.c:654 [inline]
    [<ffffffff8363cc56>] sock_sendmsg+0x56/0x80 net/socket.c:674
    [<ffffffff8363d1bc>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2350
    [<ffffffff8364120b>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2404
    [<ffffffff83641308>] __sys_sendmsg+0x88/0x100 net/socket.c:2433