======================================
| [   19.222455][   T11] ==================================================================
| [ 19.222771][ T11] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661)
| [   19.222979][   T11] Read of size 8 at addr ffff8880097100f8 by task kworker/u16:0/11
| [   19.223177][   T11]
[   19.223457][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.223629][   T11] Workqueue: netns cleanup_net
[   19.223773][   T11] Call Trace:
[   19.223876][   T11]  <TASK>
[ 19.223950][ T11] dump_stack_lvl (lib/dump_stack.c:123)
[ 19.224093][ T11] print_address_description.constprop.0 (mm/kasan/report.c:379)
[ 19.224266][ T11] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661)
[ 19.224402][ T11] print_report (mm/kasan/report.c:490)
[ 19.224540][ T11] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38)
[ 19.224676][ T11] kasan_report (mm/kasan/report.c:604)
[ 19.224782][ T11] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661)
[ 19.224920][ T11] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661)


Finger prints: