BUG: memory leak
unreferenced object 0xffff8880ab6c5240 (size 64):
  comm "syz-executor.2", pid 12231, jiffies 4295020584 (age 13.160s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    50 52 6c ab 80 88 ff ff 50 52 6c ab 80 88 ff ff  PRl.....PRl.....
  backtrace:
    [<00000000df296ca0>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000df296ca0>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<00000000df296ca0>] slab_alloc mm/slab.c:3319 [inline]
    [<00000000df296ca0>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548
    [<00000000c0a670ea>] kmalloc include/linux/slab.h:556 [inline]
    [<00000000c0a670ea>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237
    [<0000000093120723>] netdev_name_node_head_alloc net/core/dev.c:251 [inline]
    [<0000000093120723>] register_netdevice+0xaf/0x650 net/core/dev.c:9239
    [<0000000053c36de4>] register_netdev+0x24/0x40 net/core/dev.c:9437
    [<0000000037055550>] ip6gre_init_net+0x10a/0x160 net/ipv6/ip6_gre.c:1582
    [<00000000a45873f4>] ops_init+0x4c/0x160 net/core/net_namespace.c:137
    [<0000000021d2f518>] setup_net+0xda/0x2a0 net/core/net_namespace.c:335
    [<00000000209547a7>] copy_net_ns+0x128/0x2b0 net/core/net_namespace.c:476
    [<000000006f09c492>] create_new_namespaces+0x141/0x310 kernel/nsproxy.c:103
    [<000000000f0a130c>] copy_namespaces+0xa1/0xe0 kernel/nsproxy.c:161
    [<0000000014d286a0>] copy_process+0x1142/0x20b0 kernel/fork.c:2072
    [<00000000cbb954fe>] _do_fork+0x99/0x4f0 kernel/fork.c:2418
    [<000000008d120020>] __do_sys_clone kernel/fork.c:2573 [inline]
    [<000000008d120020>] __se_sys_clone kernel/fork.c:2554 [inline]
    [<000000008d120020>] __x64_sys_clone+0x8b/0xc0 kernel/fork.c:2554
    [<000000006f257399>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
    [<0000000074a33dab>] entry_SYSCALL_64_after_hwframe+0x44/0xa9