BUG: memory leak
unreferenced object 0xffff8881139afdc0 (size 64):
  comm "syz-executor521", pid 8619, jiffies 4294942396 (age 8.180s)
  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 00 00  ................
  backtrace:
    [<00000000b1cea9fc>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000b1cea9fc>] garp_attr_create net/802/garp.c:187 [inline]
    [<00000000b1cea9fc>] garp_request_join+0x138/0x220 net/802/garp.c:350
    [<000000001af147d4>] vlan_gvrp_request_join+0x96/0xa0 net/8021q/vlan_gvrp.c:34
    [<0000000016ea4c68>] vlan_dev_open+0x1f9/0x330 net/8021q/vlan_dev.c:289
    [<00000000699cc56d>] __dev_open+0x175/0x260 net/core/dev.c:1528
    [<000000005af37c45>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8479
    [<0000000087c3abe4>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<0000000054bf03f5>] __rtnl_newlink+0xa84/0xd80 net/core/rtnetlink.c:3451
    [<00000000fe51a0f2>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<000000003fad114c>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<000000008925d5ed>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000e2a2dc24>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000e2a2dc24>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<00000000bab100b1>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000cc5e8c83>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000cc5e8c83>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<000000004888f7f6>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2345
    [<00000000886ce742>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2399
    [<0000000005611c3d>] __sys_sendmsg+0x88/0x100 net/socket.c:2432

BUG: memory leak
unreferenced object 0xffff8881139afd80 (size 64):
  comm "syz-executor521", pid 8619, jiffies 4294942396 (age 8.180s)
  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:
    [<000000006f878575>] kmalloc include/linux/slab.h:557 [inline]
    [<000000006f878575>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<000000006f878575>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<00000000763a8565>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<00000000e0304a69>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<00000000699cc56d>] __dev_open+0x175/0x260 net/core/dev.c:1528
    [<000000005af37c45>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8479
    [<0000000087c3abe4>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<0000000054bf03f5>] __rtnl_newlink+0xa84/0xd80 net/core/rtnetlink.c:3451
    [<00000000fe51a0f2>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3491
    [<000000003fad114c>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5553
    [<000000008925d5ed>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000e2a2dc24>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000e2a2dc24>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<00000000bab100b1>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000cc5e8c83>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000cc5e8c83>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<000000004888f7f6>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2345
    [<00000000886ce742>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2399
    [<0000000005611c3d>] __sys_sendmsg+0x88/0x100 net/socket.c:2432