[ 11.634959][ T284] veth0: renamed from veth1 [ 12.471709][ T300] br0: port 1(swp1) entered blocking state [ 12.472484][ T300] br0: port 1(swp1) entered disabled state [ 12.472752][ T300] swp1: entered allmulticast mode [ 12.473981][ T300] swp1: entered promiscuous mode [ 12.476191][ T300] br0: port 1(swp1) entered blocking state [ 12.476503][ T300] br0: port 1(swp1) entered forwarding state [ 12.769229][ T302] br0: port 2(vx0) entered blocking state [ 12.769616][ T302] br0: port 2(vx0) entered disabled state [ 12.769836][ T302] vx0: entered allmulticast mode [ 12.771097][ T302] vx0: entered promiscuous mode [ 12.771605][ T302] br0: port 2(vx0) entered blocking state [ 12.771866][ T302] br0: port 2(vx0) entered forwarding state [ 13.506034][ T312] ip (312) used greatest stack depth: 24152 bytes left [ 13.812279][ T316] br0: port 1(swp1) entered blocking state [ 13.812586][ T316] br0: port 1(swp1) entered disabled state [ 13.812812][ T316] swp1: entered allmulticast mode [ 13.813966][ T316] swp1: entered promiscuous mode [ 13.815356][ T316] br0: port 1(swp1) entered blocking state [ 13.815574][ T316] br0: port 1(swp1) entered forwarding state [ 13.970269][ T318] br0: port 2(vx0) entered blocking state [ 13.970481][ T318] br0: port 2(vx0) entered disabled state [ 13.970670][ T318] vx0: entered allmulticast mode [ 13.971872][ T318] vx0: entered promiscuous mode [ 13.973397][ T318] br0: port 2(vx0) entered blocking state [ 13.973579][ T318] br0: port 2(vx0) entered forwarding state [ 19.710177][ T330] GACT probability NOT on [ 20.886598][ T40] br0: port 1(swp1) entered disabled state [ 21.845404][ T37] br0: port 1(swp1) entered blocking state [ 21.845750][ T37] br0: port 1(swp1) entered forwarding state [ 22.965019][ T37] br0: port 1(swp1) entered disabled state [ 23.883139][ T37] br0: port 1(swp1) entered blocking state [ 23.883826][ T37] br0: port 1(swp1) entered forwarding state [ 25.729581][ T37] br0: port 1(swp1) entered disabled state [ 26.765228][ T66] vx0: left allmulticast mode [ 26.765516][ T66] vx0: left promiscuous mode [ 26.765826][ T66] br0: port 2(vx0) entered disabled state [ 26.767696][ T66] swp1: left allmulticast mode [ 26.767861][ T66] swp1: left promiscuous mode [ 26.768136][ T66] br0: port 1(swp1) entered disabled state [ 27.083513][ T66] vx0: left allmulticast mode [ 27.083712][ T66] vx0: left promiscuous mode [ 27.084002][ T66] br0: port 2(vx0) entered disabled state [ 27.084964][ T66] swp1: left allmulticast mode [ 27.085136][ T66] swp1: left promiscuous mode [ 27.085396][ T66] br0: port 1(swp1) entered disabled state [ 27.235390][ T66] ================================================================== [ 27.235630][ T66] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 27.235838][ T66] Read of size 8 at addr ffff88800bf580f8 by task kworker/u16:1/66 [ 27.236033][ T66] [ 27.236110][ T66] CPU: 1 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.12.0-virtme #1 [ 27.236317][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.236490][ T66] Workqueue: netns cleanup_net [ 27.236636][ T66] Call Trace: [ 27.236741][ T66] [ 27.236813][ T66] dump_stack_lvl+0x82/0xd0 [ 27.236958][ T66] print_address_description.constprop.0+0x2c/0x3b0 [ 27.237136][ T66] ? cleanup_net+0xa5d/0xb90 [ 27.237273][ T66] print_report+0xb4/0x270 [ 27.237409][ T66] ? kasan_addr_to_slab+0x25/0x80 [ 27.237543][ T66] kasan_report+0xbd/0xf0 [ 27.237644][ T66] ? cleanup_net+0xa5d/0xb90 [ 27.237781][ T66] cleanup_net+0xa5d/0xb90 [ 27.237918][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 27.238059][ T66] ? __pfx_cleanup_net+0x10/0x10 [ 27.238196][ T66] ? trace_lock_acquire+0x148/0x1f0 [ 27.238333][ T66] ? lock_acquire+0x32/0xc0 [ 27.238470][ T66] ? process_one_work+0xe0b/0x16d0 [ 27.238609][ T66] process_one_work+0xe55/0x16d0 [ 27.238748][ T66] ? __pfx___lock_release+0x10/0x10 [ 27.238884][ T66] ? __pfx_process_one_work+0x10/0x10 [ 27.239022][ T66] ? assign_work+0x16c/0x240 [ 27.239158][ T66] worker_thread+0x58c/0xce0 [ 27.239293][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.239464][ T66] ? __pfx_worker_thread+0x10/0x10 [ 27.239604][ T66] ? __pfx_worker_thread+0x10/0x10 [ 27.239743][ T66] kthread+0x28a/0x350 [ 27.239850][ T66] ? __pfx_kthread+0x10/0x10 [ 27.239990][ T66] ret_from_fork+0x31/0x70 [ 27.240133][ T66] ? __pfx_kthread+0x10/0x10 [ 27.240271][ T66] ret_from_fork_asm+0x1a/0x30 [ 27.240416][ T66] [ 27.240521][ T66] [ 27.240594][ T66] Allocated by task 263: [ 27.240698][ T66] kasan_save_stack+0x24/0x50 [ 27.240847][ T66] kasan_save_track+0x14/0x30 [ 27.240984][ T66] __kasan_slab_alloc+0x59/0x70 [ 27.241119][ T66] kmem_cache_alloc_noprof+0x10b/0x350 [ 27.241268][ T66] copy_net_ns+0xc6/0x540 [ 27.241378][ T66] create_new_namespaces+0x35f/0x920 [ 27.241527][ T66] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 27.241672][ T66] ksys_unshare+0x2c4/0x6e0 [ 27.241822][ T66] __x64_sys_unshare+0x31/0x40 [ 27.241971][ T66] do_syscall_64+0xc1/0x1d0 [ 27.242118][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.242297][ T66] [ 27.242367][ T66] Freed by task 66: [ 27.242475][ T66] kasan_save_stack+0x24/0x50 [ 27.242628][ T66] kasan_save_track+0x14/0x30 [ 27.242781][ T66] kasan_save_free_info+0x3b/0x60 [ 27.242923][ T66] __kasan_slab_free+0x38/0x50 [ 27.243064][ T66] kmem_cache_free+0xf8/0x330 [ 27.243207][ T66] cleanup_net+0x5a8/0xb90 [ 27.243348][ T66] process_one_work+0xe55/0x16d0 [ 27.243490][ T66] worker_thread+0x58c/0xce0 [ 27.243629][ T66] kthread+0x28a/0x350 [ 27.243745][ T66] ret_from_fork+0x31/0x70 [ 27.243886][ T66] ret_from_fork_asm+0x1a/0x30 [ 27.244031][ T66] [ 27.244106][ T66] Last potentially related work creation: [ 27.244248][ T66] kasan_save_stack+0x24/0x50 [ 27.244397][ T66] __kasan_record_aux_stack+0x8e/0xa0 [ 27.244543][ T66] insert_work+0x34/0x230 [ 27.244654][ T66] __queue_work+0x5fd/0xa40 [ 27.244803][ T66] queue_delayed_work_on+0x8c/0xa0 [ 27.244941][ T66] __inet_insert_ifa+0x751/0xb10 [ 27.245088][ T66] inet_rtm_newaddr+0x833/0xbd0 [ 27.245232][ T66] rtnetlink_rcv_msg+0x712/0xc10 [ 27.245378][ T66] netlink_rcv_skb+0x130/0x360 [ 27.245528][ T66] netlink_unicast+0x44b/0x710 [ 27.245673][ T66] netlink_sendmsg+0x723/0xbe0 [ 27.245819][ T66] ____sys_sendmsg+0x7ac/0xa10 [ 27.245972][ T66] ___sys_sendmsg+0xee/0x170 [ 27.246118][ T66] __sys_sendmsg+0x109/0x1a0 [ 27.246268][ T66] do_syscall_64+0xc1/0x1d0 [ 27.246420][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.246602][ T66] [ 27.246673][ T66] Second to last potentially related work creation: [ 27.246843][ T66] kasan_save_stack+0x24/0x50 [ 27.246984][ T66] __kasan_record_aux_stack+0x8e/0xa0 [ 27.247133][ T66] insert_work+0x34/0x230 [ 27.247238][ T66] __queue_work+0x5fd/0xa40 [ 27.247378][ T66] queue_delayed_work_on+0x8c/0xa0 [ 27.247513][ T66] __inet_insert_ifa+0x751/0xb10 [ 27.247651][ T66] inet_rtm_newaddr+0x833/0xbd0 [ 27.247795][ T66] rtnetlink_rcv_msg+0x712/0xc10 [ 27.247944][ T66] netlink_rcv_skb+0x130/0x360 [ 27.248082][ T66] netlink_unicast+0x44b/0x710 [ 27.248233][ T66] netlink_sendmsg+0x723/0xbe0 [ 27.248383][ T66] ____sys_sendmsg+0x7ac/0xa10 [ 27.248530][ T66] ___sys_sendmsg+0xee/0x170 [ 27.248675][ T66] __sys_sendmsg+0x109/0x1a0 [ 27.248811][ T66] do_syscall_64+0xc1/0x1d0 [ 27.248947][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.249121][ T66] [ 27.249193][ T66] The buggy address belongs to the object at ffff88800bf58040 [ 27.249193][ T66] which belongs to the cache net_namespace of size 6528 [ 27.249556][ T66] The buggy address is located 184 bytes inside of [ 27.249556][ T66] freed 6528-byte region [ffff88800bf58040, ffff88800bf599c0) [ 27.249907][ T66] [ 27.249977][ T66] The buggy address belongs to the physical page: [ 27.250153][ T66] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800bf5b640 pfn:0xbf58 [ 27.250447][ T66] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 27.250665][ T66] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 27.250840][ T66] page_type: f5(slab) [ 27.250956][ T66] raw: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 27.251209][ T66] raw: ffff88800bf5b640 0000000000040002 00000001f5000000 0000000000000000 [ 27.251449][ T66] head: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 27.251697][ T66] head: ffff88800bf5b640 0000000000040002 00000001f5000000 0000000000000000 [ 27.251942][ T66] head: 0080000000000003 ffffea00002fd601 ffffffffffffffff 0000000000000000 [ 27.252211][ T66] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 27.252465][ T66] page dumped because: kasan: bad access detected [ 27.252643][ T66] [ 27.252712][ T66] Memory state around the buggy address: [ 27.252846][ T66] ffff88800bf57f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.253046][ T66] ffff88800bf58000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 27.253245][ T66] >ffff88800bf58080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.253447][ T66] ^ [ 27.253656][ T66] ffff88800bf58100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.253858][ T66] ffff88800bf58180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.254071][ T66] ================================================================== [ 27.254301][ T66] Disabling lock debugging due to kernel taint [ 28.731929][ T485] veth0: renamed from veth1 [ 29.345054][ T505] br0: port 1(swp1) entered blocking state [ 29.345370][ T505] br0: port 1(swp1) entered disabled state [ 29.345571][ T505] swp1: entered allmulticast mode [ 29.346497][ T505] swp1: entered promiscuous mode [ 29.347433][ T505] br0: port 1(swp1) entered blocking state [ 29.347624][ T505] br0: port 1(swp1) entered forwarding state [ 29.463428][ T507] br0: port 2(vx0) entered blocking state [ 29.463709][ T507] br0: port 2(vx0) entered disabled state [ 29.463877][ T507] vx0: entered allmulticast mode [ 29.464773][ T507] vx0: entered promiscuous mode [ 29.465230][ T507] br0: port 2(vx0) entered blocking state [ 29.465385][ T507] br0: port 2(vx0) entered forwarding state [ 30.192932][ T520] br0: port 1(swp1) entered blocking state [ 30.193182][ T520] br0: port 1(swp1) entered disabled state [ 30.193378][ T520] swp1: entered allmulticast mode [ 30.194268][ T520] swp1: entered promiscuous mode [ 30.195212][ T520] br0: port 1(swp1) entered blocking state [ 30.195402][ T520] br0: port 1(swp1) entered forwarding state [ 30.308857][ T522] br0: port 2(vx0) entered blocking state [ 30.309157][ T522] br0: port 2(vx0) entered disabled state [ 30.309326][ T522] vx0: entered allmulticast mode [ 30.310262][ T522] vx0: entered promiscuous mode [ 30.316663][ T522] br0: port 2(vx0) entered blocking state [ 30.316903][ T522] br0: port 2(vx0) entered forwarding state [ 37.276269][ T40] br0: port 1(swp1) entered disabled state [ 38.438302][ T37] br0: port 1(swp1) entered blocking state [ 38.438499][ T37] br0: port 1(swp1) entered forwarding state [ 39.445191][ T40] br0: port 1(swp1) entered disabled state [ 40.551199][ T39] br0: port 1(swp1) entered blocking state [ 40.551408][ T39] br0: port 1(swp1) entered forwarding state [ 42.758724][ T39] br0: port 1(swp1) entered disabled state [ 43.942145][ T66] vx0: left allmulticast mode [ 43.942314][ T66] vx0: left promiscuous mode [ 43.942558][ T66] br0: port 2(vx0) entered disabled state [ 43.948718][ T66] swp1: left allmulticast mode [ 43.948862][ T66] swp1: left promiscuous mode [ 43.949097][ T66] br0: port 1(swp1) entered disabled state [ 44.184111][ T66] vx0: left allmulticast mode [ 44.184340][ T66] vx0: left promiscuous mode [ 44.184573][ T66] br0: port 2(vx0) entered disabled state [ 44.186179][ T66] swp1: left allmulticast mode [ 44.186315][ T66] swp1: left promiscuous mode [ 44.186533][ T66] br0: port 1(swp1) entered disabled state [ 45.675869][ T754] veth0: renamed from veth1 [ 46.222450][ T770] br0: port 1(swp1) entered blocking state [ 46.222649][ T770] br0: port 1(swp1) entered disabled state [ 46.222830][ T770] swp1: entered allmulticast mode [ 46.223713][ T770] swp1: entered promiscuous mode [ 46.224629][ T770] br0: port 1(swp1) entered blocking state [ 46.224799][ T770] br0: port 1(swp1) entered forwarding state [ 46.329705][ T772] br0: port 2(vx0) entered blocking state [ 46.329937][ T772] br0: port 2(vx0) entered disabled state [ 46.330101][ T772] vx0: entered allmulticast mode [ 46.330970][ T772] vx0: entered promiscuous mode [ 46.331409][ T772] br0: port 2(vx0) entered blocking state [ 46.331547][ T772] br0: port 2(vx0) entered forwarding state [ 47.013868][ T785] br0: port 1(swp1) entered blocking state [ 47.014078][ T785] br0: port 1(swp1) entered disabled state [ 47.014262][ T785] swp1: entered allmulticast mode [ 47.015140][ T785] swp1: entered promiscuous mode [ 47.021588][ T785] br0: port 1(swp1) entered blocking state [ 47.021767][ T785] br0: port 1(swp1) entered forwarding state [ 47.121107][ T787] br0: port 2(vx0) entered blocking state [ 47.121383][ T787] br0: port 2(vx0) entered disabled state [ 47.121541][ T787] vx0: entered allmulticast mode [ 47.122420][ T787] vx0: entered promiscuous mode [ 47.122864][ T787] br0: port 2(vx0) entered blocking state [ 47.122999][ T787] br0: port 2(vx0) entered forwarding state [ 53.525031][ T37] br0: port 1(swp1) entered disabled state [ 58.600021][ T66] vx0: left allmulticast mode [ 58.600219][ T66] vx0: left promiscuous mode [ 58.600457][ T66] br0: port 2(vx0) entered disabled state [ 58.601271][ T66] swp1: left allmulticast mode [ 58.601408][ T66] swp1: left promiscuous mode [ 58.601634][ T66] br0: port 1(swp1) entered disabled state [ 58.861055][ T66] vx0: left allmulticast mode [ 58.861254][ T66] vx0: left promiscuous mode [ 58.861502][ T66] br0: port 2(vx0) entered disabled state [ 58.862169][ T66] swp1: left allmulticast mode [ 58.862328][ T66] swp1: left promiscuous mode [ 58.862566][ T66] br0: port 1(swp1) entered disabled state [ 60.315635][ T986] veth0: renamed from veth1 [ 60.870674][ T1002] br0: port 1(swp1) entered blocking state [ 60.870908][ T1002] br0: port 1(swp1) entered disabled state [ 60.871611][ T1002] swp1: entered allmulticast mode [ 60.872514][ T1002] swp1: entered promiscuous mode [ 60.873442][ T1002] br0: port 1(swp1) entered blocking state [ 60.873630][ T1002] br0: port 1(swp1) entered forwarding state [ 60.986400][ T1004] br0: port 2(vx0) entered blocking state [ 60.986631][ T1004] br0: port 2(vx0) entered disabled state [ 60.986784][ T1004] vx0: entered allmulticast mode [ 60.987674][ T1004] vx0: entered promiscuous mode [ 60.988114][ T1004] br0: port 2(vx0) entered blocking state [ 60.988251][ T1004] br0: port 2(vx0) entered forwarding state [ 61.677535][ T1017] br0: port 1(swp1) entered blocking state [ 61.677735][ T1017] br0: port 1(swp1) entered disabled state [ 61.677915][ T1017] swp1: entered allmulticast mode [ 61.678789][ T1017] swp1: entered promiscuous mode [ 61.679696][ T1017] br0: port 1(swp1) entered blocking state [ 61.679866][ T1017] br0: port 1(swp1) entered forwarding state [ 61.785777][ T1019] br0: port 2(vx0) entered blocking state [ 61.785944][ T1019] br0: port 2(vx0) entered disabled state [ 61.786102][ T1019] vx0: entered allmulticast mode [ 61.786998][ T1019] vx0: entered promiscuous mode [ 61.787363][ T1019] br0: port 2(vx0) entered blocking state [ 61.787501][ T1019] br0: port 2(vx0) entered forwarding state [ 67.844147][ T37] br0: port 1(swp1) entered disabled state [ 68.900217][ T38] br0: port 1(swp1) entered disabled state [ 75.270638][ T66] vx0: left allmulticast mode [ 75.270838][ T66] vx0: left promiscuous mode [ 75.271113][ T66] br0: port 2(vx0) entered disabled state [ 75.271806][ T66] swp1: left allmulticast mode [ 75.271965][ T66] swp1: left promiscuous mode [ 75.272221][ T66] br0: port 1(swp1) entered disabled state [ 75.503664][ T66] vx0: left allmulticast mode [ 75.503822][ T66] vx0: left promiscuous mode [ 75.504064][ T66] br0: port 2(vx0) entered disabled state [ 75.504868][ T66] swp1: left allmulticast mode [ 75.505028][ T66] swp1: left promiscuous mode [ 75.505259][ T66] br0: port 1(swp1) entered disabled state [ 77.008700][ T1148] veth0: renamed from veth1 [ 77.571489][ T1165] br0: port 1(swp1) entered blocking state [ 77.571689][ T1165] br0: port 1(swp1) entered disabled state [ 77.571870][ T1165] swp1: entered allmulticast mode [ 77.573405][ T1165] swp1: entered promiscuous mode [ 77.574330][ T1165] br0: port 1(swp1) entered blocking state [ 77.574501][ T1165] br0: port 1(swp1) entered forwarding state [ 77.683452][ T1167] br0: port 2(vx0) entered blocking state [ 77.683687][ T1167] br0: port 2(vx0) entered disabled state [ 77.683834][ T1167] vx0: entered allmulticast mode [ 77.684723][ T1167] vx0: entered promiscuous mode [ 77.685093][ T1167] br0: port 2(vx0) entered blocking state [ 77.685231][ T1167] br0: port 2(vx0) entered forwarding state [ 78.367431][ T1180] br0: port 1(swp1) entered blocking state [ 78.367661][ T1180] br0: port 1(swp1) entered disabled state [ 78.367857][ T1180] swp1: entered allmulticast mode [ 78.368756][ T1180] swp1: entered promiscuous mode [ 78.370656][ T1180] br0: port 1(swp1) entered blocking state [ 78.370857][ T1180] br0: port 1(swp1) entered forwarding state [ 78.480481][ T1182] br0: port 2(vx0) entered blocking state [ 78.480657][ T1182] br0: port 2(vx0) entered disabled state [ 78.480804][ T1182] vx0: entered allmulticast mode [ 78.481712][ T1182] vx0: entered promiscuous mode [ 78.482151][ T1182] br0: port 2(vx0) entered blocking state [ 78.482285][ T1182] br0: port 2(vx0) entered forwarding state [ 84.073356][ T39] br0: port 1(swp1) entered disabled state [ 114.265428][ T66] vx0: left allmulticast mode [ 114.265608][ T66] vx0: left promiscuous mode [ 114.265849][ T66] br0: port 2(vx0) entered disabled state [ 114.266722][ T66] swp1: left allmulticast mode [ 114.266861][ T66] swp1: left promiscuous mode [ 114.267102][ T66] br0: port 1(swp1) entered disabled state [ 114.490426][ T66] vx0: left allmulticast mode [ 114.490616][ T66] vx0: left promiscuous mode [ 114.490864][ T66] br0: port 2(vx0) entered disabled state [ 114.491497][ T66] swp1: left allmulticast mode [ 114.491650][ T66] swp1: left promiscuous mode [ 114.491884][ T66] br0: port 1(swp1) entered disabled state