BUG: memory leak
unreferenced object 0xffff88811a6ec8e0 (size 32):
  comm "syz-executor069", pid 7053, jiffies 4294941299 (age 16.040s)
  hex dump (first 32 bytes):
    62 72 69 64 67 65 30 00 6b 2f 37 30 35 33 00 78  bridge0.k/7053.x
    00 0e 4a 81 ff ff ff ff 30 6a 53 81 ff ff ff ff  ..J.....0jS.....
  backtrace:
    [<000000006f9a3f8b>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000006f9a3f8b>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<000000006f9a3f8b>] slab_alloc mm/slab.c:3319 [inline]
    [<000000006f9a3f8b>] __do_kmalloc mm/slab.c:3653 [inline]
    [<000000006f9a3f8b>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3670
    [<00000000b7c69376>] kstrdup+0x3a/0x70 mm/util.c:60
    [<00000000a09d9ef0>] kstrdup_const+0x48/0x60 mm/util.c:82
    [<000000009d9c1441>] kvasprintf_const+0x7e/0xe0 lib/kasprintf.c:48
    [<0000000025d9a771>] kobject_set_name_vargs+0x40/0xe0 lib/kobject.c:289
    [<00000000bc0dddf5>] dev_set_name+0x63/0x90 drivers/base/core.c:2006
    [<000000006d31247b>] netdev_register_kobject+0x5a/0x1b0 net/core/net-sysfs.c:1727
    [<000000008baeac44>] register_netdevice+0x397/0x610 net/core/dev.c:8781
    [<00000000734cf221>] br_dev_newlink+0x26/0xb0 net/bridge/br_netlink.c:1315
    [<00000000f102bb07>] __rtnl_newlink+0x892/0xb30 net/core/rtnetlink.c:3196
    [<0000000059f95aa5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3254
    [<000000002cf3f191>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5223
    [<00000000906842b6>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
    [<000000004b687829>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241
    [<00000000996fe1b1>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
    [<00000000996fe1b1>] netlink_unicast+0x1ec/0x2d0 net/netlink/af_netlink.c:1328
    [<000000007ec6cfa2>] netlink_sendmsg+0x270/0x480 net/netlink/af_netlink.c:1917