======================================
| make: Leaving directory '/home/virtme/testing/wt-12/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> echo scan > /sys/kernel/debug/kmemleak
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88800c998d00 (size 3024):
comm "softirq", pid 0, jiffies 4297398511
hex dump (first 32 bytes):
0a 00 01 02 0a 00 01 01 00 00 00 00 a7 f0 7d 27  ..............}'
0a 00 07 41 00 00 00 00 00 00 00 00 00 00 00 00  ...A............
backtrace (crc c59ebf87):
kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4195 mm/slub.c:4240 mm/slub.c:4247) 
sk_prot_alloc.constprop.0 (net/core/sock.c:2233) 
sk_clone_lock (net/core/sock.c:2467) 
mptcp_sk_clone_init (net/mptcp/protocol.c:3269) 
subflow_syn_recv_sock (net/mptcp/subflow.c:880) 
tcp_check_req (net/ipv4/tcp_minisocks.c:894) 
tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2292) 
ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205) 
ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:240) 
ip_local_deliver (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:260) 
ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:574) 
__netif_receive_skb_one_core (net/core/dev.c:6033) 
process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6506) 
__napi_poll.constprop.0 (net/core/dev.c:7556) 
net_rx_action (net/core/dev.c:7618 net/core/dev.c:7745) 


Finger prints:
kmem_cache_alloc_noprof:sk_clone_lock:mptcp_sk_clone_init:subflow_syn_recv_sock:tcp_check_req