e list of known hosts. executing program BUG: memory leak unreferenced object 0xffff888128c4e800 (size 256): comm "softirq", pid 0, jiffies 4294942449 (age 7.880s) hex dump (first 32 bytes): 00 01 00 00 00 00 ad de 00 02 00 00 00 00 ad de ................ 00 c0 ff 28 81 88 ff ff 00 00 00 00 00 00 00 00 ...(............ backtrace: [<00000000425e25a2>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000425e25a2>] slab_post_alloc_hook mm/slab.h:439 [inline] [<00000000425e25a2>] slab_alloc mm/slab.c:3326 [inline] [<00000000425e25a2>] kmem_cache_alloc_trace+0x13d/0x280 mm/slab.c:3553 [<000000000387123f>] kmalloc include/linux/slab.h:547 [inline] [<000000000387123f>] kzalloc include/linux/slab.h:742 [inline] [<000000000387123f>] lapb_create_cb net/lapb/lapb_iface.c:116 [inline] [<000000000387123f>] lapb_register+0x90/0x1c0 net/lapb/lapb_iface.c:153 [<00000000b98c2f66>] x25_asy_open drivers/net/wan/x25_asy.c:483 [inline] [<00000000b98c2f66>] x25_asy_open_tty+0x26b/0x2f6 drivers/net/wan/x25_asy.c:573 [<0000000053fcd10e>] tty_ldisc_open.isra.0+0x40/0x70 drivers/tty/tty_ldisc.c:469 [<00000000d210899d>] tty_set_ldisc+0x149/0x240 drivers/tty/tty_ldisc.c:596 [<00000000d13239f0>] tiocsetd drivers/tty/tty_io.c:2332 [inline] [<00000000d13239f0>] tty_ioctl+0x366/0xa30 drivers/tty/tty_io.c:2592 [<00000000e2970278>] vfs_ioctl fs/ioctl.c:46 [inline] [<00000000e2970278>] file_ioctl fs/ioctl.c:509 [inline] [<00000000e2970278>] do_vfs_ioctl+0x62a/0x810 fs/ioctl.c:696 [<00000000d032f593>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:713 [<00000000d57d8c45>] __do_sys_ioctl fs/ioctl.c:720 [inline] [<00000000d57d8c45>] __se_sys_ioctl fs/ioctl.c:718 [inline] [<00000000d57d8c45>] __x64_sys_ioctl+0x1e/0x30 fs/ioctl.c:718 [<0000000003f85804>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301 [<00000000fe28b758>] entry_SYSCALL_64_after_hwframe+0x44/0xa9