======================================
| make: Leaving directory '/home/virtme/testing-22/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 0xffff8880058e2f20 (size 32):
comm "bash", pid 1409, jiffies 4294877641
hex dump (first 32 bytes):
98 31 1e 1e 80 88 ff ff 80 76 a9 b3 ff ff ff ff  .1.......v......
00 87 15 06 80 88 ff ff cc cc cc cc cc cc cc cc  ................
backtrace (crc 2aa89d5e):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4155 mm/slub.c:4200 mm/slub.c:4357) 
kmem_cache_free (mm/slub.c:2342 mm/slub.c:4646 mm/slub.c:4748) 
fput_close_sync (fs/file_table.c:568) 
__x64_sys_close (fs/open.c:1584 fs/open.c:1566 fs/open.c:1566) 
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
unreferenced object 0xffff8880058e2da0 (size 32):
comm "bash", pid 1409, jiffies 4294877645
hex dump (first 32 bytes):
10 a9 b6 1b 80 88 ff ff 80 76 a9 b3 ff ff ff ff  .........v......
c0 ba 15 06 80 88 ff ff cc cc cc cc cc cc cc cc  ................
backtrace (crc 3a689def):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4155 mm/slub.c:4200 mm/slub.c:4357) 
kmem_cache_free (mm/slub.c:2342 mm/slub.c:4646 mm/slub.c:4748) 
fput_close_sync (fs/file_table.c:568) 
__x64_sys_close (fs/open.c:1584 fs/open.c:1566 fs/open.c:1566) 
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 


Finger prints:
__kmalloc_cache_noprof:kmem_cache_free:fput_close_sync:__x64_sys_close:do_syscall_64