====================================== | [ 128.379610][ T66] ================================================================== | [ 128.379883][ T66] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) | [ 128.380097][ T66] Read of size 8 at addr ffff8880090580f8 by task kworker/u16:1/66 | [ 128.380298][ T66] [ 128.380618][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 128.380791][ T66] Workqueue: netns cleanup_net [ 128.380943][ T66] Call Trace: [ 128.381060][ T66] [ 128.381136][ T66] dump_stack_lvl (lib/dump_stack.c:123) [ 128.381283][ T66] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 128.381460][ T66] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 128.381597][ T66] print_report (mm/kasan/report.c:490) [ 128.381742][ T66] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 128.381887][ T66] kasan_report (mm/kasan/report.c:604) [ 128.382000][ T66] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 128.382143][ T66] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 128.382285][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 128.382432][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:592) [ 128.382570][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 47)) [ 128.382717][ T66] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 128.382860][ T66] ? process_one_work (kernel/workqueue.c:3205) [ 128.383000][ T66] process_one_work (kernel/workqueue.c:3229) [ 128.383149][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 128.383297][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 128.383443][ T66] ? assign_work (kernel/workqueue.c:1200) [ 128.383592][ T66] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 128.383734][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 128.383922][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 128.384070][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 128.384215][ T66] kthread (kernel/kthread.c:389) [ 128.384336][ T66] ? __pfx_kthread (kernel/kthread.c:342) [ 128.384469][ T66] ret_from_fork (arch/x86/kernel/process.c:147) [ 128.384605][ T66] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: print_report:kasan_report:cleanup_net:process_one_work:worker_thread