====================================== | xx__-> [ 11.710552][ T66] ================================================================== | [ 11.710818][ T66] BUG: KASAN: slab-use-after-free in cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) | [ 11.711041][ T66] Read of size 8 at addr ffff88800b4580f8 by task kworker/u16:1/66 | [ 11.711254][ T66] [ 11.711542][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.711730][ T66] Workqueue: netns cleanup_net [ 11.711885][ T66] Call Trace: [ 11.712007][ T66] [ 11.712083][ T66] dump_stack_lvl (lib/dump_stack.c:123) [ 11.712244][ T66] print_address_description.constprop.0 (mm/kasan/report.c:379) [ 11.712437][ T66] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 11.712583][ T66] print_report (mm/kasan/report.c:490) [ 11.712736][ T66] ? kasan_addr_to_slab (./include/linux/mm.h:1294 mm/kasan/../slab.h:211 mm/kasan/common.c:38) [ 11.712875][ T66] kasan_report (mm/kasan/report.c:604) [ 11.712981][ T66] ? cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 11.713122][ T66] cleanup_net (net/core/net_namespace.c:462 net/core/net_namespace.c:661) [ 11.713262][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 11.713407][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:592) [ 11.713556][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 47)) [ 11.713697][ T66] ? lock_acquire (kernel/locking/lockdep.c:5822) [ 11.713839][ T66] ? process_one_work (kernel/workqueue.c:3205) [ 11.713980][ T66] process_one_work (kernel/workqueue.c:3229) [ 11.714120][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 11.714260][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3131) [ 11.714403][ T66] ? assign_work (kernel/workqueue.c:1200) [ 11.714544][ T66] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 11.714681][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406) [ 11.714854][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 11.715004][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 11.715139][ T66] kthread (kernel/kthread.c:389) [ 11.715251][ T66] ? __pfx_kthread (kernel/kthread.c:342) [ 11.715392][ T66] ret_from_fork (arch/x86/kernel/process.c:147) [ 11.715537][ T66] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: print_report:kasan_report:cleanup_net:process_one_work:worker_thread