[   10.131187][   T11] ==================================================================
[   10.131449][   T11] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40
[   10.131689][   T11] Read of size 8 at addr ffff8880053700f8 by task kworker/u16:0/11
[   10.131891][   T11] 
[   10.131963][   T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1
[   10.132171][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.132348][   T11] Workqueue: netns cleanup_net
[   10.132495][   T11] Call Trace:
[   10.132652][   T11]  <TASK>
[   10.132725][   T11]  dump_stack_lvl+0x82/0xd0
[   10.132872][   T11]  print_address_description.constprop.0+0x2c/0x3b0
[   10.133053][   T11]  ? cleanup_net+0x932/0xa40
[   10.133202][   T11]  print_report+0xb4/0x270
[   10.133343][   T11]  ? kasan_addr_to_slab+0x25/0x80
[   10.133491][   T11]  kasan_report+0xbd/0xf0
[   10.133597][   T11]  ? cleanup_net+0x932/0xa40
[   10.133773][   T11]  cleanup_net+0x932/0xa40
[   10.133914][   T11]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   10.134054][   T11]  ? __pfx_cleanup_net+0x10/0x10
[   10.134191][   T11]  ? trace_lock_acquire+0x148/0x1f0
[   10.134332][   T11]  ? lock_acquire+0x32/0xc0
[   10.134468][   T11]  ? process_one_work+0xe0b/0x16d0
[   10.134612][   T11]  process_one_work+0xe55/0x16d0
[   10.134768][   T11]  ? __pfx___lock_release+0x10/0x10
[   10.134909][   T11]  ? __pfx_process_one_work+0x10/0x10
[   10.135052][   T11]  ? assign_work+0x16c/0x240
[   10.135193][   T11]  worker_thread+0x58c/0xce0
[   10.135337][   T11]  ? __pfx_worker_thread+0x10/0x10
[   10.135479][   T11]  kthread+0x28a/0x350
[   10.135586][   T11]  ? __pfx_kthread+0x10/0x10
[   10.135726][   T11]  ret_from_fork+0x31/0x70
[   10.135876][   T11]  ? __pfx_kthread+0x10/0x10
[   10.136019][   T11]  ret_from_fork_asm+0x1a/0x30
[   10.136163][   T11]  </TASK>
[   10.136270][   T11] 
[   10.136341][   T11] Allocated by task 225:
[   10.136451][   T11]  kasan_save_stack+0x24/0x50
[   10.136597][   T11]  kasan_save_track+0x14/0x30
[   10.136737][   T11]  __kasan_slab_alloc+0x59/0x70
[   10.136873][   T11]  kmem_cache_alloc_noprof+0x10b/0x350
[   10.137010][   T11]  copy_net_ns+0xc6/0x340
[   10.137115][   T11]  create_new_namespaces+0x35f/0x920
[   10.137260][   T11]  unshare_nsproxy_namespaces+0x8d/0x130
[   10.137397][   T11]  ksys_unshare+0x2a9/0x660
[   10.137538][   T11]  __x64_sys_unshare+0x31/0x40
[   10.137674][   T11]  do_syscall_64+0xc1/0x1d0
[   10.137816][   T11]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   10.137987][   T11] 
[   10.138060][   T11] Freed by task 11:
[   10.138164][   T11]  kasan_save_stack+0x24/0x50
[   10.138305][   T11]  kasan_save_track+0x14/0x30
[   10.138453][   T11]  kasan_save_free_info+0x3b/0x60
[   10.138591][   T11]  __kasan_slab_free+0x38/0x50
[   10.138737][   T11]  kmem_cache_free+0xf8/0x330
[   10.138879][   T11]  cleanup_net+0x5a8/0xa40
[   10.139018][   T11]  process_one_work+0xe55/0x16d0
[   10.139154][   T11]  worker_thread+0x58c/0xce0
[   10.139294][   T11]  kthread+0x28a/0x350
[   10.139398][   T11]  ret_from_fork+0x31/0x70
[   10.139537][   T11]  ret_from_fork_asm+0x1a/0x30
[   10.139674][   T11] 
[   10.139745][   T11] The buggy address belongs to the object at ffff888005370040
[   10.139745][   T11]  which belongs to the cache net_namespace of size 5696
[   10.140132][   T11] The buggy address is located 184 bytes inside of
[   10.140132][   T11]  freed 5696-byte region [ffff888005370040, ffff888005371680)
[   10.140464][   T11] 
[   10.140540][   T11] The buggy address belongs to the physical page:
[   10.140713][   T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888005372fc0 pfn:0x5370
[   10.140995][   T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   10.141212][   T11] flags: 0x80000000000240(workingset|head|node=0|zone=1)
[   10.141386][   T11] page_type: f5(slab)
[   10.141494][   T11] raw: 0080000000000240 ffff88800195f240 ffff888001962088 ffff888001962088
[   10.141767][   T11] raw: ffff888005372fc0 0000000000050002 00000001f5000000 0000000000000000
[   10.142010][   T11] head: 0080000000000240 ffff88800195f240 ffff888001962088 ffff888001962088
[   10.142259][   T11] head: ffff888005372fc0 0000000000050002 00000001f5000000 0000000000000000
[   10.142510][   T11] head: 0080000000000003 ffffea000014dc01 ffffffffffffffff 0000000000000000
[   10.142752][   T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
[   10.143016][   T11] page dumped because: kasan: bad access detected
[   10.143182][   T11] 
[   10.143249][   T11] Memory state around the buggy address:
[   10.143384][   T11]  ffff88800536ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.143583][   T11]  ffff888005370000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   10.143781][   T11] >ffff888005370080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   10.143983][   T11]                                                                 ^
[   10.144187][   T11]  ffff888005370100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   10.144382][   T11]  ffff888005370180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   10.144587][   T11] ==================================================================
[   10.144820][   T11] Disabling lock debugging due to kernel taint
[   14.486564][    C3] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[   18.689354][  T225] connect-deny_ip (225) used greatest stack depth: 24528 bytes left