======================================
| make: Leaving directory '/home/virtme/testing-18/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88800992c100 (size 256):
comm "ip", pid 246, jiffies 4294678583
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
backtrace (crc 0):
__kmalloc_node_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4119 mm/slub.c:4164 mm/slub.c:4293 mm/slub.c:4300) 
fib4_semantics_init (net/ipv4/fib_semantics.c:2241) 
fib_net_init (net/ipv4/fib_frontend.c:1640 net/ipv4/fib_frontend.c:1629) 
ops_init (net/core/net_namespace.c:138) 
setup_net (net/core/net_namespace.c:362) 
copy_net_ns (net/core/net_namespace.c:518) 
create_new_namespaces (kernel/nsproxy.c:110) 
unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) 
ksys_unshare (kernel/fork.c:3342) 
__x64_sys_unshare (kernel/fork.c:3411) 
do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 


Finger prints:
__kmalloc_node_noprof:fib4_semantics_init:fib_net_init:ops_init:setup_net