BUG: memory leak
unreferenced object 0xffff888120dff120 (size 32):
  comm "syz-executor644", pid 7193, jiffies 4294949489 (age 8.430s)
  hex dump (first 32 bytes):
    6d 61 63 73 65 63 30 00 6b 2f 37 31 39 33 00 00  macsec0.k/7193..
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000004f55c191>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000004f55c191>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<000000004f55c191>] slab_alloc mm/slab.c:3320 [inline]
    [<000000004f55c191>] __do_kmalloc mm/slab.c:3654 [inline]
    [<000000004f55c191>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671
    [<00000000c53c270f>] kstrdup+0x3a/0x70 mm/util.c:60
    [<000000001b2f7eac>] kstrdup_const+0x48/0x60 mm/util.c:82
    [<00000000965b9687>] kvasprintf_const+0x7e/0xe0 lib/kasprintf.c:48
    [<00000000196d1162>] kobject_set_name_vargs+0x40/0xe0 lib/kobject.c:289
    [<000000004ba7af00>] dev_set_name+0x63/0x90 drivers/base/core.c:2265
    [<000000001c9cfc3f>] netdev_register_kobject+0x5a/0x1b0 net/core/net-sysfs.c:1736
    [<00000000ce6af7c0>] register_netdevice+0x1ce/0x650 net/core/dev.c:9316
    [<000000003683bc29>] macsec_newlink+0xe5/0x530 drivers/net/macsec.c:3250
    [<0000000075db2705>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3305
    [<0000000068def6b0>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3363
    [<00000000797a9ff0>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
    [<00000000d1558b65>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
    [<0000000035fc534f>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
    [<00000000f8df68d5>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
    [<00000000f8df68d5>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
    [<00000000c85a7ac5>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917