BUG: memory leak
unreferenced object 0xffff888125b9c6c0 (size 64):
  comm "syz-executor.1", pid 11009, jiffies 4294965554 (age 9.210s)
  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:
    [<000000004a94f226>] kmalloc include/linux/slab.h:557 [inline]
    [<000000004a94f226>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<000000004a94f226>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<00000000b3b59d5b>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<00000000df4b47c2>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<0000000002040dee>] __dev_open+0x175/0x260 net/core/dev.c:1523
    [<00000000f0388aae>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8423
    [<00000000fe26183a>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3123
    [<0000000036afc066>] __rtnl_newlink+0xa7e/0xdb0 net/core/rtnetlink.c:3460
    [<00000000d9550094>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3500
    [<00000000d7817424>] rtnetlink_rcv_msg+0x1f5/0x510 net/core/rtnetlink.c:5562
    [<000000003c21e853>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000f2f4a86c>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000f2f4a86c>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<00000000814dfa3d>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000147abd16>] sock_sendmsg_nosec net/socket.c:651 [inline]
    [<00000000147abd16>] sock_sendmsg+0x56/0x80 net/socket.c:671
    [<00000000cca5625b>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2353
    [<00000000de5c27b9>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2407
    [<00000000d09fd46e>] __sys_sendmsg+0x88/0x100 net/socket.c:2440