====================================== | xx__-> [ 14.916310][ T11] ================================================================== | [ 14.916548][ T11] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) | [ 14.916743][ T11] Read of size 8 at addr ffff8880097c80f8 by task kworker/u16:0/11 | [ 14.916948][ T11] [ 14.917236][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.917395][ T11] Workqueue: netns cleanup_net [ 14.917547][ T11] Call Trace: [ 14.917640][ T11] [ 14.917711][ T11] dump_stack_lvl (lib/dump_stack.c:123) [ 14.917882][ T11] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 14.918046][ T11] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 14.918173][ T11] print_report (mm/kasan/report.c:490) [ 14.918297][ T11] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 14.918425][ T11] kasan_report (mm/kasan/report.c:604) [ 14.918520][ T11] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 14.918654][ T11] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 14.918781][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 14.918916][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:592) [ 14.919048][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 47)) [ 14.919202][ T11] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 14.919328][ T11] ? process_one_work (kernel/workqueue.c:3205) [ 14.919455][ T11] process_one_work (kernel/workqueue.c:3229) [ 14.919598][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 14.919737][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 14.919877][ T11] ? assign_work (kernel/workqueue.c:1200) [ 14.920010][ T11] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 14.920139][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 14.920265][ T11] kthread (kernel/kthread.c:389) [ 14.920363][ T11] ? __pfx_kthread (kernel/kthread.c:342) [ 14.920492][ T11] ret_from_fork (arch/x86/kernel/process.c:147) [ 14.920622][ T11] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: print_report:kasan_report:cleanup_net:process_one_work:worker_thread