====================================== | xx__-> [ 53.670546][ T68] ================================================================== | [ 53.670894][ T68] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) | [ 53.671194][ T68] Read of size 8 at addr ffff88800be680f8 by task kworker/u16:1/68 | [ 53.671483][ T68] [ 53.671913][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 53.672137][ T68] Workqueue: netns cleanup_net [ 53.672365][ T68] Call Trace: [ 53.672526][ T68] [ 53.672635][ T68] dump_stack_lvl (lib/dump_stack.c:123) [ 53.672857][ T68] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 53.673124][ T68] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 53.673323][ T68] print_report (mm/kasan/report.c:490) [ 53.673525][ T68] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 53.673729][ T68] kasan_report (mm/kasan/report.c:604) [ 53.673889][ T68] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 53.674099][ T68] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 53.674302][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 53.674527][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:592) [ 53.674737][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 47)) [ 53.674949][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 53.675154][ T68] ? process_one_work (kernel/workqueue.c:3205) [ 53.675369][ T68] process_one_work (kernel/workqueue.c:3229) [ 53.675582][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 53.675793][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 53.676007][ T68] ? assign_work (kernel/workqueue.c:1200) [ 53.676225][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 53.676439][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 53.676703][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 53.676910][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 53.677121][ T68] kthread (kernel/kthread.c:389) [ 53.677281][ T68] ? __pfx_kthread (kernel/kthread.c:342) [ 53.677483][ T68] ret_from_fork (arch/x86/kernel/process.c:147) [ 53.677690][ T68] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: print_report:kasan_report:cleanup_net:process_one_work:worker_thread