[   41.884699][  T408] netdevsim netdevsim1337 eni1337np1: renamed from eth0
[   41.900191][  T415] netdevsim netdevsim1057 eni1057np1: renamed from eth1
[   42.015496][  T406] netdevsim netdevsim5417 eni5417np1: renamed from eth2
[   65.276143][   T11] ==================================================================
[   65.276414][   T11] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40
[   65.276684][   T11] Read of size 8 at addr ffff88800ddb80f8 by task kworker/u16:0/11
[   65.276915][   T11] 
[   65.276991][   T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1
[   65.277214][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.277391][   T11] Workqueue: netns cleanup_net
[   65.277541][   T11] Call Trace:
[   65.277654][   T11]  <TASK>
[   65.277731][   T11]  dump_stack_lvl+0x82/0xd0
[   65.277894][   T11]  print_address_description.constprop.0+0x2c/0x3b0
[   65.278083][   T11]  ? cleanup_net+0x932/0xa40
[   65.278240][   T11]  print_report+0xb4/0x270
[   65.278409][   T11]  ? kasan_addr_to_slab+0x25/0x80
[   65.278560][   T11]  kasan_report+0xbd/0xf0
[   65.278677][   T11]  ? cleanup_net+0x932/0xa40
[   65.278838][   T11]  cleanup_net+0x932/0xa40
[   65.278993][   T11]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   65.279156][   T11]  ? __pfx_cleanup_net+0x10/0x10
[   65.279303][   T11]  ? trace_lock_acquire+0x148/0x1f0
[   65.279460][   T11]  ? lock_acquire+0x32/0xc0
[   65.279601][   T11]  ? process_one_work+0xe0b/0x16d0
[   65.279752][   T11]  process_one_work+0xe55/0x16d0
[   65.279904][   T11]  ? __pfx___lock_release+0x10/0x10
[   65.280057][   T11]  ? __pfx_process_one_work+0x10/0x10
[   65.280207][   T11]  ? assign_work+0x16c/0x240
[   65.280367][   T11]  worker_thread+0x58c/0xce0
[   65.280519][   T11]  ? __pfx_worker_thread+0x10/0x10
[   65.280669][   T11]  kthread+0x28a/0x350
[   65.280780][   T11]  ? __pfx_kthread+0x10/0x10
[   65.280934][   T11]  ret_from_fork+0x31/0x70
[   65.281089][   T11]  ? __pfx_kthread+0x10/0x10
[   65.281232][   T11]  ret_from_fork_asm+0x1a/0x30
[   65.281399][   T11]  </TASK>
[   65.281508][   T11] 
[   65.281584][   T11] Allocated by task 251:
[   65.281696][   T11]  kasan_save_stack+0x24/0x50
[   65.281849][   T11]  kasan_save_track+0x14/0x30
[   65.282003][   T11]  __kasan_slab_alloc+0x59/0x70
[   65.282150][   T11]  kmem_cache_alloc_noprof+0x10b/0x350
[   65.282304][   T11]  copy_net_ns+0xc6/0x340
[   65.282433][   T11]  create_new_namespaces+0x35f/0x920
[   65.282587][   T11]  unshare_nsproxy_namespaces+0x8d/0x130
[   65.282743][   T11]  ksys_unshare+0x2a9/0x660
[   65.282894][   T11]  __x64_sys_unshare+0x31/0x40
[   65.283044][   T11]  do_syscall_64+0xc1/0x1d0
[   65.283208][   T11]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   65.283399][   T11] 
[   65.283479][   T11] Freed by task 11:
[   65.283605][   T11]  kasan_save_stack+0x24/0x50
[   65.283750][   T11]  kasan_save_track+0x14/0x30
[   65.283908][   T11]  kasan_save_free_info+0x3b/0x60
[   65.284061][   T11]  __kasan_slab_free+0x38/0x50
[   65.284213][   T11]  kmem_cache_free+0xf8/0x330
[   65.284361][   T11]  cleanup_net+0x5a8/0xa40
[   65.284511][   T11]  process_one_work+0xe55/0x16d0
[   65.284660][   T11]  worker_thread+0x58c/0xce0
[   65.284812][   T11]  kthread+0x28a/0x350
[   65.284931][   T11]  ret_from_fork+0x31/0x70
[   65.285079][   T11]  ret_from_fork_asm+0x1a/0x30
[   65.285232][   T11] 
[   65.285310][   T11] The buggy address belongs to the object at ffff88800ddb8040
[   65.285310][   T11]  which belongs to the cache net_namespace of size 5696
[   65.285704][   T11] The buggy address is located 184 bytes inside of
[   65.285704][   T11]  freed 5696-byte region [ffff88800ddb8040, ffff88800ddb9680)
[   65.286086][   T11] 
[   65.286167][   T11] The buggy address belongs to the physical page:
[   65.286352][   T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800ddbafc0 pfn:0xddb8
[   65.286672][   T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   65.286910][   T11] flags: 0x80000000000240(workingset|head|node=0|zone=1)
[   65.287124][   T11] page_type: f5(slab)
[   65.287250][   T11] raw: 0080000000000240 ffff888001927240 ffff88800192a088 ffff88800192a088
[   65.287540][   T11] raw: ffff88800ddbafc0 0000000000050002 00000001f5000000 0000000000000000
[   65.287823][   T11] head: 0080000000000240 ffff888001927240 ffff88800192a088 ffff88800192a088
[   65.288113][   T11] head: ffff88800ddbafc0 0000000000050002 00000001f5000000 0000000000000000
[   65.288390][   T11] head: 0080000000000003 ffffea0000376e01 ffffffffffffffff 0000000000000000
[   65.288657][   T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
[   65.288947][   T11] page dumped because: kasan: bad access detected
[   65.289150][   T11] 
[   65.289231][   T11] Memory state around the buggy address:
[   65.289385][   T11]  ffff88800ddb7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   65.289616][   T11]  ffff88800ddb8000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   65.289851][   T11] >ffff88800ddb8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   65.290089][   T11]                                                                 ^
[   65.290318][   T11]  ffff88800ddb8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   65.290545][   T11]  ffff88800ddb8180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   65.290772][   T11] ==================================================================
[   65.291143][   T11] Disabling lock debugging due to kernel taint