[ 16.076905][ T318] br0: port 1(swp1) entered blocking state [ 16.077569][ T318] br0: port 1(swp1) entered disabled state [ 16.078226][ T318] swp1: entered allmulticast mode [ 16.079664][ T318] swp1: entered promiscuous mode [ 16.342711][ T40] br0: port 1(swp1) entered blocking state [ 16.343339][ T40] br0: port 1(swp1) entered forwarding state [ 16.642831][ T321] br0: port 2(vx0) entered blocking state [ 16.644227][ T321] br0: port 2(vx0) entered disabled state [ 16.644859][ T321] vx0: entered allmulticast mode [ 16.647048][ T321] vx0: entered promiscuous mode [ 16.648006][ T321] br0: port 2(vx0) entered blocking state [ 16.648614][ T321] br0: port 2(vx0) entered forwarding state [ 18.611692][ T340] br0: port 1(swp1) entered blocking state [ 18.612052][ T340] br0: port 1(swp1) entered disabled state [ 18.612341][ T340] swp1: entered allmulticast mode [ 18.613883][ T340] swp1: entered promiscuous mode [ 18.619829][ T40] br0: port 1(swp1) entered blocking state [ 18.620093][ T40] br0: port 1(swp1) entered forwarding state [ 18.935809][ T343] br0: port 2(vx0) entered blocking state [ 18.936098][ T343] br0: port 2(vx0) entered disabled state [ 18.936327][ T343] vx0: entered allmulticast mode [ 18.937719][ T343] vx0: entered promiscuous mode [ 18.939057][ T343] br0: port 2(vx0) entered blocking state [ 18.939297][ T343] br0: port 2(vx0) entered forwarding state [ 25.285704][ T360] GACT probability NOT on [ 27.898438][ T398] ip (398) used greatest stack depth: 24144 bytes left [ 36.463728][ T11] br0: port 1(swp1) entered disabled state [ 36.578056][ T11] swp1 (unregistering): left allmulticast mode [ 36.578456][ T11] swp1 (unregistering): left promiscuous mode [ 36.578658][ T11] br0: port 1(swp1) entered disabled state [ 36.813051][ T11] br0: port 1(swp1) entered disabled state [ 36.949097][ T11] swp1 (unregistering): left allmulticast mode [ 36.949610][ T11] swp1 (unregistering): left promiscuous mode [ 36.949811][ T11] br0: port 1(swp1) entered disabled state [ 37.012404][ T11] ================================================================== [ 37.012642][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 37.012841][ T11] Read of size 8 at addr ffff88800ccc80f8 by task kworker/u16:0/11 [ 37.013047][ T11] [ 37.013138][ T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 37.013383][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.013541][ T11] Workqueue: netns cleanup_net [ 37.013729][ T11] Call Trace: [ 37.013826][ T11] [ 37.013892][ T11] dump_stack_lvl+0x82/0xd0 [ 37.014059][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 37.014255][ T11] ? cleanup_net+0xa5d/0xb90 [ 37.014393][ T11] print_report+0xb4/0x270 [ 37.014518][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 37.014643][ T11] kasan_report+0xbd/0xf0 [ 37.014737][ T11] ? cleanup_net+0xa5d/0xb90 [ 37.014868][ T11] cleanup_net+0xa5d/0xb90 [ 37.014992][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 37.015127][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 37.015311][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 37.015448][ T11] ? lock_acquire+0x32/0xc0 [ 37.015570][ T11] ? process_one_work+0xe0b/0x16d0 [ 37.015695][ T11] process_one_work+0xe55/0x16d0 [ 37.015819][ T11] ? __pfx___lock_release+0x10/0x10 [ 37.015946][ T11] ? __pfx_process_one_work+0x10/0x10 [ 37.016071][ T11] ? assign_work+0x16c/0x240 [ 37.016207][ T11] worker_thread+0x58c/0xce0 [ 37.016333][ T11] ? __pfx_worker_thread+0x10/0x10 [ 37.016459][ T11] kthread+0x28a/0x350 [ 37.016556][ T11] ? __pfx_kthread+0x10/0x10 [ 37.016757][ T11] ret_from_fork+0x31/0x70 [ 37.016922][ T11] ? __pfx_kthread+0x10/0x10 [ 37.017073][ T11] ret_from_fork_asm+0x1a/0x30 [ 37.017259][ T11] [ 37.017384][ T11] [ 37.017448][ T11] Allocated by task 264: [ 37.017544][ T11] kasan_save_stack+0x24/0x50 [ 37.017674][ T11] kasan_save_track+0x14/0x30 [ 37.017803][ T11] __kasan_slab_alloc+0x59/0x70 [ 37.017926][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 37.018106][ T11] copy_net_ns+0xc6/0x540 [ 37.018252][ T11] create_new_namespaces+0x35f/0x920 [ 37.018408][ T11] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 37.018577][ T11] ksys_unshare+0x2c4/0x6e0 [ 37.018709][ T11] __x64_sys_unshare+0x31/0x40 [ 37.018846][ T11] do_syscall_64+0xc1/0x1d0 [ 37.019012][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 37.019212][ T11] [ 37.019305][ T11] Freed by task 11: [ 37.019445][ T11] kasan_save_stack+0x24/0x50 [ 37.019632][ T11] kasan_save_track+0x14/0x30 [ 37.019791][ T11] kasan_save_free_info+0x3b/0x60 [ 37.019927][ T11] __kasan_slab_free+0x38/0x50 [ 37.020050][ T11] kmem_cache_free+0xf8/0x330 [ 37.020194][ T11] cleanup_net+0x5a8/0xb90 [ 37.020324][ T11] process_one_work+0xe55/0x16d0 [ 37.020466][ T11] worker_thread+0x58c/0xce0 [ 37.020596][ T11] kthread+0x28a/0x350 [ 37.020692][ T11] ret_from_fork+0x31/0x70 [ 37.020824][ T11] ret_from_fork_asm+0x1a/0x30 [ 37.020946][ T11] [ 37.021012][ T11] Last potentially related work creation: [ 37.021151][ T11] kasan_save_stack+0x24/0x50 [ 37.021279][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 37.021402][ T11] insert_work+0x34/0x230 [ 37.021522][ T11] __queue_work+0x5fd/0xa40 [ 37.021665][ T11] queue_delayed_work_on+0x8c/0xa0 [ 37.021820][ T11] __inet_insert_ifa+0x751/0xb10 [ 37.021974][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 37.022132][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 37.022336][ T11] netlink_rcv_skb+0x130/0x360 [ 37.022532][ T11] netlink_unicast+0x44b/0x710 [ 37.022720][ T11] netlink_sendmsg+0x723/0xbe0 [ 37.022908][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 37.023110][ T11] ___sys_sendmsg+0xee/0x170 [ 37.023305][ T11] __sys_sendmsg+0x109/0x1a0 [ 37.023486][ T11] do_syscall_64+0xc1/0x1d0 [ 37.023632][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 37.023793][ T11] [ 37.023857][ T11] Second to last potentially related work creation: [ 37.024007][ T11] kasan_save_stack+0x24/0x50 [ 37.024148][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 37.024290][ T11] insert_work+0x34/0x230 [ 37.024400][ T11] __queue_work+0x5fd/0xa40 [ 37.024530][ T11] queue_delayed_work_on+0x8c/0xa0 [ 37.024653][ T11] __inet_insert_ifa+0x751/0xb10 [ 37.024783][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 37.024910][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 37.025050][ T11] netlink_rcv_skb+0x130/0x360 [ 37.025199][ T11] netlink_unicast+0x44b/0x710 [ 37.025329][ T11] netlink_sendmsg+0x723/0xbe0 [ 37.025471][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 37.025596][ T11] ___sys_sendmsg+0xee/0x170 [ 37.025719][ T11] __sys_sendmsg+0x109/0x1a0 [ 37.025849][ T11] do_syscall_64+0xc1/0x1d0 [ 37.025982][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 37.026151][ T11] [ 37.026221][ T11] The buggy address belongs to the object at ffff88800ccc8040 [ 37.026221][ T11] which belongs to the cache net_namespace of size 6528 [ 37.026577][ T11] The buggy address is located 184 bytes inside of [ 37.026577][ T11] freed 6528-byte region [ffff88800ccc8040, ffff88800ccc99c0) [ 37.026910][ T11] [ 37.026994][ T11] The buggy address belongs to the physical page: [ 37.027190][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xccc8 [ 37.027437][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 37.027635][ T11] flags: 0x80000000000040(head|node=0|zone=1) [ 37.027835][ T11] page_type: f5(slab) [ 37.027944][ T11] raw: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 37.028248][ T11] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 37.028525][ T11] head: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 37.028775][ T11] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 37.028992][ T11] head: 0080000000000003 ffffea0000333201 ffffffffffffffff 0000000000000000 [ 37.029228][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 37.029464][ T11] page dumped because: kasan: bad access detected [ 37.029620][ T11] [ 37.029683][ T11] Memory state around the buggy address: [ 37.029820][ T11] ffff88800ccc7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 37.029999][ T11] ffff88800ccc8000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 37.030190][ T11] >ffff88800ccc8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.030405][ T11] ^ [ 37.030611][ T11] ffff88800ccc8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.030790][ T11] ffff88800ccc8180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.030976][ T11] ================================================================== [ 37.031317][ T11] Disabling lock debugging due to kernel taint [ 37.094049][ T11] vx0: left allmulticast mode [ 37.094372][ T11] vx0: left promiscuous mode [ 37.094988][ T11] br0: port 2(vx0) entered disabled state [ 37.416111][ T11] vx0: left allmulticast mode [ 37.416319][ T11] vx0: left promiscuous mode [ 37.416653][ T11] br0: port 2(vx0) entered disabled state [ 41.978290][ T586] br0: port 1(swp1) entered blocking state [ 41.979482][ T586] br0: port 1(swp1) entered disabled state [ 41.979872][ T586] swp1: entered allmulticast mode [ 41.980926][ T586] swp1: entered promiscuous mode [ 42.169017][ T589] br0: port 2(vx0) entered blocking state [ 42.169215][ T589] br0: port 2(vx0) entered disabled state [ 42.169371][ T589] vx0: entered allmulticast mode [ 42.170308][ T589] vx0: entered promiscuous mode [ 42.170725][ T589] br0: port 2(vx0) entered blocking state [ 42.170880][ T589] br0: port 2(vx0) entered forwarding state [ 42.453893][ T56] br0: port 1(swp1) entered blocking state [ 42.454116][ T56] br0: port 1(swp1) entered forwarding state [ 43.143499][ T606] br0: port 1(swp1) entered blocking state [ 43.143885][ T606] br0: port 1(swp1) entered disabled state [ 43.144156][ T606] swp1: entered allmulticast mode [ 43.146160][ T606] swp1: entered promiscuous mode [ 43.149965][ T39] br0: port 1(swp1) entered blocking state [ 43.150218][ T39] br0: port 1(swp1) entered forwarding state [ 43.328574][ T610] br0: port 2(vx0) entered blocking state [ 43.328811][ T610] br0: port 2(vx0) entered disabled state [ 43.328987][ T610] vx0: entered allmulticast mode [ 43.330215][ T610] vx0: entered promiscuous mode [ 43.330941][ T610] br0: port 2(vx0) entered blocking state [ 43.331107][ T610] br0: port 2(vx0) entered forwarding state [ 65.236223][ T11] br0: port 1(swp1) entered disabled state [ 65.351847][ T11] swp1 (unregistering): left allmulticast mode [ 65.352088][ T11] swp1 (unregistering): left promiscuous mode [ 65.352264][ T11] br0: port 1(swp1) entered disabled state [ 65.472580][ T11] br0: port 1(swp1) entered disabled state [ 65.590780][ T11] swp1 (unregistering): left allmulticast mode [ 65.591023][ T11] swp1 (unregistering): left promiscuous mode [ 65.591204][ T11] br0: port 1(swp1) entered disabled state [ 65.675574][ T11] vx0: left allmulticast mode [ 65.675796][ T11] vx0: left promiscuous mode [ 65.676067][ T11] br0: port 2(vx0) entered disabled state [ 65.967051][ T11] vx0: left allmulticast mode [ 65.967229][ T11] vx0: left promiscuous mode [ 65.967507][ T11] br0: port 2(vx0) entered disabled state [ 70.398899][ T847] br0: port 1(swp1) entered blocking state [ 70.399195][ T847] br0: port 1(swp1) entered disabled state [ 70.399401][ T847] swp1: entered allmulticast mode [ 70.400730][ T847] swp1: entered promiscuous mode [ 70.591653][ T850] br0: port 2(vx0) entered blocking state [ 70.591906][ T850] br0: port 2(vx0) entered disabled state [ 70.592062][ T850] vx0: entered allmulticast mode [ 70.593015][ T850] vx0: entered promiscuous mode [ 70.593611][ T850] br0: port 2(vx0) entered blocking state [ 70.593767][ T850] br0: port 2(vx0) entered forwarding state [ 70.870116][ T56] br0: port 1(swp1) entered blocking state [ 70.870333][ T56] br0: port 1(swp1) entered forwarding state [ 71.614035][ T867] br0: port 1(swp1) entered blocking state [ 71.614280][ T867] br0: port 1(swp1) entered disabled state [ 71.614503][ T867] swp1: entered allmulticast mode [ 71.615464][ T867] swp1: entered promiscuous mode [ 71.624043][ T39] br0: port 1(swp1) entered blocking state [ 71.624240][ T39] br0: port 1(swp1) entered forwarding state [ 71.799908][ T870] br0: port 2(vx0) entered blocking state [ 71.800113][ T870] br0: port 2(vx0) entered disabled state [ 71.800290][ T870] vx0: entered allmulticast mode [ 71.801628][ T870] vx0: entered promiscuous mode [ 71.802203][ T870] br0: port 2(vx0) entered blocking state [ 71.802367][ T870] br0: port 2(vx0) entered forwarding state [ 82.984678][ T11] br0: port 1(swp1) entered disabled state [ 83.124782][ T11] swp1 (unregistering): left allmulticast mode [ 83.124995][ T11] swp1 (unregistering): left promiscuous mode [ 83.125167][ T11] br0: port 1(swp1) entered disabled state [ 83.207812][ T11] br0: port 1(swp1) entered disabled state [ 83.303732][ T11] swp1 (unregistering): left allmulticast mode [ 83.303976][ T11] swp1 (unregistering): left promiscuous mode [ 83.304166][ T11] br0: port 1(swp1) entered disabled state [ 83.412064][ T11] vx0: left allmulticast mode [ 83.412259][ T11] vx0: left promiscuous mode [ 83.412541][ T11] br0: port 2(vx0) entered disabled state [ 83.671605][ T11] vx0: left allmulticast mode [ 83.671777][ T11] vx0: left promiscuous mode [ 83.672020][ T11] br0: port 2(vx0) entered disabled state [ 88.073640][ T1099] br0: port 1(swp1) entered blocking state [ 88.073927][ T1099] br0: port 1(swp1) entered disabled state [ 88.074129][ T1099] swp1: entered allmulticast mode [ 88.075047][ T1099] swp1: entered promiscuous mode [ 88.261674][ T1102] br0: port 2(vx0) entered blocking state [ 88.261885][ T1102] br0: port 2(vx0) entered disabled state [ 88.262050][ T1102] vx0: entered allmulticast mode [ 88.262987][ T1102] vx0: entered promiscuous mode [ 88.263533][ T1102] br0: port 2(vx0) entered blocking state [ 88.263687][ T1102] br0: port 2(vx0) entered forwarding state [ 88.534584][ T37] br0: port 1(swp1) entered blocking state [ 88.534822][ T37] br0: port 1(swp1) entered forwarding state [ 89.264864][ T1119] br0: port 1(swp1) entered blocking state [ 89.265080][ T1119] br0: port 1(swp1) entered disabled state [ 89.265272][ T1119] swp1: entered allmulticast mode [ 89.266211][ T1119] swp1: entered promiscuous mode [ 89.269120][ T56] br0: port 1(swp1) entered blocking state [ 89.269309][ T56] br0: port 1(swp1) entered forwarding state [ 89.436352][ T1122] br0: port 2(vx0) entered blocking state [ 89.436578][ T1122] br0: port 2(vx0) entered disabled state [ 89.436749][ T1122] vx0: entered allmulticast mode [ 89.437713][ T1122] vx0: entered promiscuous mode [ 89.438278][ T1122] br0: port 2(vx0) entered blocking state [ 89.438464][ T1122] br0: port 2(vx0) entered forwarding state [ 100.435640][ T11] br0: port 1(swp1) entered disabled state [ 100.535178][ T11] swp1 (unregistering): left allmulticast mode [ 100.535449][ T11] swp1 (unregistering): left promiscuous mode [ 100.535633][ T11] br0: port 1(swp1) entered disabled state [ 100.671436][ T11] br0: port 1(swp1) entered disabled state [ 100.811880][ T11] swp1 (unregistering): left allmulticast mode [ 100.812188][ T11] swp1 (unregistering): left promiscuous mode [ 100.812378][ T11] br0: port 1(swp1) entered disabled state [ 100.891858][ T11] vx0: left allmulticast mode [ 100.892090][ T11] vx0: left promiscuous mode [ 100.892370][ T11] br0: port 2(vx0) entered disabled state [ 101.138086][ T11] vx0: left allmulticast mode [ 101.138270][ T11] vx0: left promiscuous mode [ 101.138537][ T11] br0: port 2(vx0) entered disabled state