BUG: memory leak
unreferenced object 0xffff88810f253bc0 (size 64):
  comm "syz-executor.0", pid 8781, jiffies 4294981042 (age 12.560s)
  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:
    [<000000002c90eaf2>] kmalloc include/linux/slab.h:557 [inline]
    [<000000002c90eaf2>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<000000002c90eaf2>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<00000000767f060c>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<00000000e31d25da>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<00000000321f4874>] __dev_open+0x175/0x260 net/core/dev.c:1528
    [<00000000255186cf>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8478
    [<0000000014787d72>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<00000000b508028e>] __rtnl_newlink+0xa84/0xd80 net/core/rtnetlink.c:3451
    [<00000000e4ab560a>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<00000000bc6559c4>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<0000000019075ccf>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000c41d1eb4>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000c41d1eb4>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<00000000c1a55588>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000461322b5>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000461322b5>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<00000000a4b54946>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2345
    [<00000000748d64db>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2399
    [<000000008dec0274>] __sys_sendmsg+0x88/0x100 net/socket.c:2432