BUG: memory leak
unreferenced object 0xffff88810cf1e600 (size 32):
  comm "syz-executor741", pid 7079, jiffies 4294951431 (age 8.220s)
  hex dump (first 32 bytes):
    62 72 69 64 67 65 33 00 6b 2f 37 30 37 39 00 70  bridge3.k/7079.p
    65 3a 5b 32 38 30 33 39 5d 00 35 34 31 33 00 00  e:[28039].5413..
  backtrace:
    [<00000000935ccdd9>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000935ccdd9>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<00000000935ccdd9>] slab_alloc mm/slab.c:3319 [inline]
    [<00000000935ccdd9>] __do_kmalloc mm/slab.c:3653 [inline]
    [<00000000935ccdd9>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3670
    [<00000000a920b63a>] kstrdup+0x3a/0x70 mm/util.c:60
    [<00000000ef797b22>] kstrdup_const+0x48/0x60 mm/util.c:82
    [<00000000cf0af6cf>] kvasprintf_const+0x7e/0xe0 lib/kasprintf.c:48
    [<00000000735d047a>] kobject_set_name_vargs+0x40/0xe0 lib/kobject.c:289
    [<000000006e68042a>] dev_set_name+0x63/0x90 drivers/base/core.c:2006
    [<0000000000a4433e>] netdev_register_kobject+0x5a/0x1b0 net/core/net-sysfs.c:1727
    [<00000000cfa7f62f>] register_netdevice+0x397/0x610 net/core/dev.c:9086
    [<00000000587bdcfe>] br_dev_newlink+0x26/0xb0 net/bridge/br_netlink.c:1315
    [<000000007e725832>] __rtnl_newlink+0x892/0xb30 net/core/rtnetlink.c:3197
    [<00000000cc530d95>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3255
    [<000000004a35467a>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5224
    [<0000000072d9e307>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
    [<000000009fe5b44a>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5242
    [<000000004a318da4>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
    [<000000004a318da4>] netlink_unicast+0x1ec/0x2d0 net/netlink/af_netlink.c:1328
    [<00000000e4f14b2a>] netlink_sendmsg+0x270/0x480 net/netlink/af_netlink.c:1917