T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 38.029717][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 38.029842][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 38.029966][ T11] ? lock_acquire+0x32/0xc0 [ 38.030091][ T11] ? process_one_work+0xe0b/0x16d0 [ 38.030218][ T11] process_one_work+0xe55/0x16d0 [ 38.030364][ T11] ? __pfx___lock_release+0x10/0x10 [ 38.030491][ T11] ? __pfx_process_one_work+0x10/0x10 [ 38.030644][ T11] ? assign_work+0x16c/0x240 [ 38.030770][ T11] worker_thread+0x58c/0xce0 [ 38.030901][ T11] ? __pfx_worker_thread+0x10/0x10 [ 38.031029][ T11] kthread+0x28a/0x350 [ 38.031125][ T11] ? __pfx_kthread+0x10/0x10 [ 38.031252][ T11] ret_from_fork+0x31/0x70 [ 38.031381][ T11] ? __pfx_kthread+0x10/0x10 [ 38.031518][ T11] ret_from_fork_asm+0x1a/0x30 [ 38.031647][ T11] [ 38.031740][ T11] [ 38.031814][ T11] Allocated by task 260: [ 38.031905][ T11] kasan_save_stack+0x24/0x50 [ 38.032023][ T11] kasan_save_track+0x14/0x30 [ 38.032140][ T11] __kasan_slab_alloc+0x59/0x70 [ 38.032254][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 38.032375][ T11] copy_net_ns+0xc6/0x540 [ 38.032463][ T11] create_new_namespaces+0x35f/0x920 [ 38.032582][ T11] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 38.032700][ T11] ksys_unshare+0x2c4/0x6e0 [ 38.032819][ T11] __x64_sys_unshare+0x31/0x40 [ 38.032936][ T11] do_syscall_64+0xc1/0x1d0 [ 38.033077][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 38.033229][ T11] [ 38.033310][ T11] Freed by task 11: [ 38.033405][ T11] kasan_save_stack+0x24/0x50 [ 38.033531][ T11] kasan_save_track+0x14/0x30 [ 38.033656][ T11] kasan_save_free_info+0x3b/0x60 [ 38.033784][ T11] __kasan_slab_free+0x38/0x50 [ 38.033910][ T11] kmem_cache_free+0xf8/0x330 [ 38.034034][ T11] cleanup_net+0x5a8/0xb90 [ 38.034158][ T11] process_one_work+0xe55/0x16d0 [ 38.034284][ T11] worker_thread+0x58c/0xce0 [ 38.034408][ T11] kthread+0x28a/0x350 [ 38.034503][ T11] ret_from_fork+0x31/0x70 [ 38.034629][ T11] ret_from_fork_asm+0x1a/0x30 [ 38.034755][ T11] [ 38.034821][ T11] The buggy address belongs to the object at ffff888008868040 [ 38.034821][ T11] which belongs to the cache net_namespace of size 6528 [ 38.035154][ T11] The buggy address is located 184 bytes inside of [ 38.035154][ T11] freed 6528-byte region [ffff888008868040, ffff8880088699c0) [ 38.035448][ T11] [ 38.035528][ T11] The buggy address belongs to the physical page: [ 38.035678][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8868 [ 38.035899][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 38.036087][ T11] flags: 0x80000000000040(head|node=0|zone=1) [ 38.036244][ T11] page_type: f5(slab) [ 38.036344][ T11] raw: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 38.036575][ T11] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 38.036795][ T11] head: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 38.037013][ T11] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 38.037225][ T11] head: 0080000000000003 ffffea0000221a01 ffffffffffffffff 0000000000000000 [ 38.037459][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 38.037677][ T11] page dumped because: kasan: bad access detected [ 38.037829][ T11] [ 38.037893][ T11] Memory state around the buggy address: [ 38.038017][ T11] ffff888008867f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.038201][ T11] ffff888008868000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 38.038380][ T11] >ffff888008868080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 38.038562][ T11] ^ [ 38.038743][ T11] ffff888008868100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 38.038926][ T11] ffff888008868180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 38.039136][ T11] ================================================================== [ 38.039356][ T11] Disabling lock debugging due to kernel taint [ 38.107121][ T11] veth-t100: Failed to cycle device veth-t100; route tables might be wrong!