BUG: memory leak
unreferenced object 0xffff88810fd31600 (size 64):
  comm "syz-executor.0", pid 8839, jiffies 4294984183 (age 8.200s)
  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:
    [<000000007510dd21>] kmalloc include/linux/slab.h:557 [inline]
    [<000000007510dd21>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<000000007510dd21>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<0000000051d4d75b>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<00000000e820f698>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<000000009845bf2a>] __dev_open+0x175/0x260 net/core/dev.c:1528
    [<00000000a82a9380>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8479
    [<00000000d6444931>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<00000000dfd23721>] __rtnl_newlink+0xa84/0xd80 net/core/rtnetlink.c:3451
    [<000000003ce3aa4d>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<00000000343d7f19>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<0000000038322e28>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<000000009432cbb3>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<000000009432cbb3>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<00000000d915bd04>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000be85907b>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000be85907b>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<00000000796d9c96>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2345
    [<0000000059561e9f>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2399
    [<00000000c9ade019>] __sys_sendmsg+0x88/0x100 net/socket.c:2432