====================================== | [ 16.493416][ T65] ================================================================== | [ 16.493705][ T65] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) | [ 16.493926][ T65] Read of size 8 at addr ffff88800a0c80f8 by task kworker/u16:1/65 | [ 16.494142][ T65] [ 16.494430][ T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.494615][ T65] Workqueue: netns cleanup_net [ 16.494772][ T65] Call Trace: [ 16.494882][ T65] [ 16.494957][ T65] dump_stack_lvl (lib/dump_stack.c:123) [ 16.495119][ T65] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 16.495302][ T65] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 16.495447][ T65] print_report (mm/kasan/report.c:490) [ 16.495592][ T65] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 16.495741][ T65] kasan_report (mm/kasan/report.c:604) [ 16.495850][ T65] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 16.496001][ T65] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 16.496145][ T65] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 16.496298][ T65] ? __pfx_cleanup_net (net/core/net_namespace.c:592) [ 16.496440][ T65] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 47)) [ 16.496585][ T65] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 16.496738][ T65] ? process_one_work (kernel/workqueue.c:3205) [ 16.496891][ T65] process_one_work (kernel/workqueue.c:3229) [ 16.497038][ T65] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 16.497187][ T65] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 16.497334][ T65] ? assign_work (kernel/workqueue.c:1200) [ 16.497483][ T65] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 16.497625][ T65] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 16.497799][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 16.497939][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 16.498077][ T65] kthread (kernel/kthread.c:389) [ 16.498191][ T65] ? __pfx_kthread (kernel/kthread.c:342) [ 16.498355][ T65] ret_from_fork (arch/x86/kernel/process.c:147) [ 16.498502][ T65] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: print_report:kasan_report:cleanup_net:process_one_work:worker_thread