[ 11.910732][ T258] ip (258) used greatest stack depth: 23696 bytes left [ 14.535341][ T300] 8021q: 802.1Q VLAN Support v1.8 [ 18.547202][ T350] br1: port 1(vx10) entered blocking state [ 18.547667][ T350] br1: port 1(vx10) entered disabled state [ 18.548432][ T350] vx10: entered allmulticast mode [ 18.550497][ T350] vx10: entered promiscuous mode [ 18.551493][ T350] br1: port 1(vx10) entered blocking state [ 18.551855][ T350] br1: port 1(vx10) entered forwarding state [ 18.967090][ T355] br1: port 2(vx20) entered blocking state [ 18.967416][ T355] br1: port 2(vx20) entered disabled state [ 18.967714][ T355] vx20: entered allmulticast mode [ 18.969909][ T355] vx20: entered promiscuous mode [ 18.970803][ T355] br1: port 2(vx20) entered blocking state [ 18.971096][ T355] br1: port 2(vx20) entered forwarding state [ 19.131992][ T357] br1: port 3(veth1) entered blocking state [ 19.132320][ T357] br1: port 3(veth1) entered disabled state [ 19.133856][ T357] veth1: entered allmulticast mode [ 19.135860][ T357] veth1: entered promiscuous mode [ 19.219848][ T39] br1: port 3(veth1) entered blocking state [ 19.220346][ T39] br1: port 3(veth1) entered forwarding state [ 19.607276][ T363] br1: port 4(veth2) entered blocking state [ 19.607792][ T363] br1: port 4(veth2) entered disabled state [ 19.608253][ T363] veth2: entered allmulticast mode [ 19.612221][ T363] veth2: entered promiscuous mode [ 19.697053][ T39] br1: port 4(veth2) entered blocking state [ 19.697362][ T39] br1: port 4(veth2) entered forwarding state [ 23.344161][ T413] br2: port 1(w1) entered blocking state [ 23.344614][ T413] br2: port 1(w1) entered disabled state [ 23.345051][ T413] w1: entered allmulticast mode [ 23.349265][ T413] w1: entered promiscuous mode [ 24.073518][ T421] br2: port 2(vx10) entered blocking state [ 24.073883][ T421] br2: port 2(vx10) entered disabled state [ 24.074192][ T421] vx10: entered allmulticast mode [ 24.076475][ T421] vx10: entered promiscuous mode [ 24.077536][ T421] br2: port 2(vx10) entered blocking state [ 24.077833][ T421] br2: port 2(vx10) entered forwarding state [ 24.732270][ T428] br2: port 3(vx20) entered blocking state [ 24.732573][ T428] br2: port 3(vx20) entered disabled state [ 24.732857][ T428] vx20: entered allmulticast mode [ 24.735309][ T428] vx20: entered promiscuous mode [ 24.735861][ T428] br2: port 3(vx20) entered blocking state [ 24.736162][ T428] br2: port 3(vx20) entered forwarding state [ 25.459331][ T44] br2: port 1(w1) entered blocking state [ 25.459936][ T44] br2: port 1(w1) entered forwarding state [ 28.191297][ T470] br2: port 1(w1) entered blocking state [ 28.191558][ T470] br2: port 1(w1) entered disabled state [ 28.191846][ T470] w1: entered allmulticast mode [ 28.194967][ T470] w1: entered promiscuous mode [ 28.919556][ T478] br2: port 2(vx10) entered blocking state [ 28.919906][ T478] br2: port 2(vx10) entered disabled state [ 28.920308][ T478] vx10: entered allmulticast mode [ 28.922597][ T478] vx10: entered promiscuous mode [ 28.923643][ T478] br2: port 2(vx10) entered blocking state [ 28.923921][ T478] br2: port 2(vx10) entered forwarding state [ 29.615168][ T485] br2: port 3(vx20) entered blocking state [ 29.615465][ T485] br2: port 3(vx20) entered disabled state [ 29.615756][ T485] vx20: entered allmulticast mode [ 29.617748][ T485] vx20: entered promiscuous mode [ 29.618651][ T485] br2: port 3(vx20) entered blocking state [ 29.618906][ T485] br2: port 3(vx20) entered forwarding state [ 30.423512][ T40] br2: port 1(w1) entered blocking state [ 30.423774][ T40] br2: port 1(w1) entered forwarding state [ 41.704518][ T572] GACT probability NOT on [ 135.956204][ T11] vx20: left allmulticast mode [ 135.956599][ T11] vx20: left promiscuous mode [ 135.957041][ T11] br2: port 3(vx20) entered disabled state [ 135.959807][ T11] vx10: left allmulticast mode [ 135.960134][ T11] vx10: left promiscuous mode [ 135.960507][ T11] br2: port 2(vx10) entered disabled state [ 135.963248][ T11] w1: left allmulticast mode [ 135.963492][ T11] w1: left promiscuous mode [ 135.963844][ T11] br2: port 1(w1) entered disabled state [ 136.532702][ T11] vx20: left allmulticast mode [ 136.532944][ T11] vx20: left promiscuous mode [ 136.533290][ T11] br2: port 3(vx20) entered disabled state [ 136.536083][ T11] vx10: left allmulticast mode [ 136.536311][ T11] vx10: left promiscuous mode [ 136.536621][ T11] br2: port 2(vx10) entered disabled state [ 136.539563][ T11] w1: left allmulticast mode [ 136.539768][ T11] w1: left promiscuous mode [ 136.540096][ T11] br2: port 1(w1) entered disabled state [ 136.938496][ T11] ================================================================== [ 136.938845][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40 [ 136.939126][ T11] Read of size 8 at addr ffff888004d59a38 by task kworker/u16:0/11 [ 136.939393][ T11] [ 136.939489][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 136.939804][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 136.940061][ T11] Workqueue: netns cleanup_net [ 136.940280][ T11] Call Trace: [ 136.940436][ T11] [ 136.940544][ T11] dump_stack_lvl+0x82/0xd0 [ 136.940765][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 136.941019][ T11] ? cleanup_net+0x932/0xa40 [ 136.941221][ T11] print_report+0xb4/0x270 [ 136.941417][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 136.941612][ T11] kasan_report+0xbd/0xf0 [ 136.941768][ T11] ? cleanup_net+0x932/0xa40 [ 136.941959][ T11] cleanup_net+0x932/0xa40 [ 136.942137][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 136.942332][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 136.942526][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 136.942721][ T11] ? lock_acquire+0x32/0xc0 [ 136.942908][ T11] ? process_one_work+0xe0b/0x16d0 [ 136.943100][ T11] process_one_work+0xe55/0x16d0 [ 136.943287][ T11] ? __pfx___lock_release+0x10/0x10 [ 136.943472][ T11] ? __pfx_process_one_work+0x10/0x10 [ 136.943663][ T11] ? assign_work+0x16c/0x240 [ 136.943874][ T11] worker_thread+0x58c/0xce0 [ 136.944072][ T11] ? __pfx_worker_thread+0x10/0x10 [ 136.944278][ T11] kthread+0x28a/0x350 [ 136.944425][ T11] ? __pfx_kthread+0x10/0x10 [ 136.944627][ T11] ret_from_fork+0x31/0x70 [ 136.944830][ T11] ? __pfx_kthread+0x10/0x10 [ 136.945022][ T11] ret_from_fork_asm+0x1a/0x30 [ 136.945217][ T11] [ 136.945345][ T11] [ 136.945437][ T11] Allocated by task 449: [ 136.945575][ T11] kasan_save_stack+0x24/0x50 [ 136.945782][ T11] kasan_save_track+0x14/0x30 [ 136.945962][ T11] __kasan_slab_alloc+0x59/0x70 [ 136.946164][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 136.946345][ T11] copy_net_ns+0xc6/0x340 [ 136.946491][ T11] create_new_namespaces+0x35f/0x920 [ 136.946686][ T11] unshare_nsproxy_namespaces+0x8d/0x130 [ 136.946872][ T11] ksys_unshare+0x2a9/0x660 [ 136.947067][ T11] __x64_sys_unshare+0x31/0x40 [ 136.947257][ T11] do_syscall_64+0xc1/0x1d0 [ 136.947455][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 136.947697][ T11] [ 136.947794][ T11] Freed by task 11: [ 136.947934][ T11] kasan_save_stack+0x24/0x50 [ 136.948132][ T11] kasan_save_track+0x14/0x30 [ 136.948319][ T11] kasan_save_free_info+0x3b/0x60 [ 136.948508][ T11] __kasan_slab_free+0x38/0x50 [ 136.948707][ T11] kmem_cache_free+0xf8/0x330 [ 136.948896][ T11] cleanup_net+0x5a8/0xa40 [ 136.949068][ T11] process_one_work+0xe55/0x16d0 [ 136.949193][ T11] worker_thread+0x58c/0xce0 [ 136.949348][ T11] kthread+0x28a/0x350 [ 136.949488][ T11] ret_from_fork+0x31/0x70 [ 136.949665][ T11] ret_from_fork_asm+0x1a/0x30 [ 136.949863][ T11] [ 136.949929][ T11] Last potentially related work creation: [ 136.950091][ T11] kasan_save_stack+0x24/0x50 [ 136.950296][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 136.950489][ T11] insert_work+0x34/0x230 [ 136.950637][ T11] __queue_work+0x5fd/0xa40 [ 136.950825][ T11] queue_delayed_work_on+0x8c/0xa0 [ 136.951031][ T11] __inet_insert_ifa+0x751/0xb10 [ 136.951224][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 136.951419][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 136.951616][ T11] netlink_rcv_skb+0x130/0x360 [ 136.951814][ T11] netlink_unicast+0x44b/0x710 [ 136.952021][ T11] netlink_sendmsg+0x723/0xbe0 [ 136.952224][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 136.952429][ T11] ___sys_sendmsg+0xee/0x170 [ 136.952629][ T11] __sys_sendmsg+0x109/0x1a0 [ 136.952833][ T11] do_syscall_64+0xc1/0x1d0 [ 136.953037][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 136.953284][ T11] [ 136.953384][ T11] Second to last potentially related work creation: [ 136.953621][ T11] kasan_save_stack+0x24/0x50 [ 136.953838][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 136.954032][ T11] insert_work+0x34/0x230 [ 136.954182][ T11] __queue_work+0x5fd/0xa40 [ 136.954375][ T11] queue_delayed_work_on+0x8c/0xa0 [ 136.954573][ T11] __inet_insert_ifa+0x751/0xb10 [ 136.954791][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 136.954989][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 136.955186][ T11] netlink_rcv_skb+0x130/0x360 [ 136.955383][ T11] netlink_unicast+0x44b/0x710 [ 136.955578][ T11] netlink_sendmsg+0x723/0xbe0 [ 136.955770][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 136.955970][ T11] ___sys_sendmsg+0xee/0x170 [ 136.956167][ T11] __sys_sendmsg+0x109/0x1a0 [ 136.956365][ T11] do_syscall_64+0xc1/0x1d0 [ 136.956565][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 136.956806][ T11] [ 136.956903][ T11] The buggy address belongs to the object at ffff888004d59980 [ 136.956903][ T11] which belongs to the cache net_namespace of size 6080 [ 136.957389][ T11] The buggy address is located 184 bytes inside of [ 136.957389][ T11] freed 6080-byte region [ffff888004d59980, ffff888004d5b140) [ 136.957842][ T11] [ 136.957938][ T11] The buggy address belongs to the physical page: [ 136.958152][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888004d5b2c0 pfn:0x4d58 [ 136.958555][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 136.958866][ T11] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 136.959123][ T11] page_type: f5(slab) [ 136.959283][ T11] raw: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 136.959633][ T11] raw: ffff888004d5b2c0 0000000000050002 00000001f5000000 0000000000000000 [ 136.959983][ T11] head: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 136.960347][ T11] head: ffff888004d5b2c0 0000000000050002 00000001f5000000 0000000000000000 [ 136.960689][ T11] head: 0080000000000003 ffffea0000135601 ffffffffffffffff 0000000000000000 [ 136.961035][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 136.961378][ T11] page dumped because: kasan: bad access detected [ 136.961622][ T11] [ 136.961723][ T11] Memory state around the buggy address: [ 136.961906][ T11] ffff888004d59900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 136.962168][ T11] ffff888004d59980: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 136.962427][ T11] >ffff888004d59a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 136.962690][ T11] ^ [ 136.962915][ T11] ffff888004d59a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 136.963175][ T11] ffff888004d59b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 136.963447][ T11] ================================================================== [ 136.963734][ T11] Disabling lock debugging due to kernel taint [ 138.430001][ T780] br1: port 4(veth2) entered disabled state [ 138.496660][ T781] veth2: left allmulticast mode [ 138.496903][ T781] veth2: left promiscuous mode [ 138.497244][ T781] br1: port 4(veth2) entered disabled state [ 138.827220][ T785] br1: port 3(veth1) entered disabled state [ 138.874717][ T786] veth1: left allmulticast mode [ 138.874922][ T786] veth1: left promiscuous mode [ 138.875215][ T786] br1: port 3(veth1) entered disabled state [ 138.996265][ T788] vx20: left allmulticast mode [ 138.996513][ T788] vx20: left promiscuous mode [ 138.996808][ T788] br1: port 2(vx20) entered disabled state [ 139.309119][ T792] vx10: left allmulticast mode [ 139.309333][ T792] vx10: left promiscuous mode [ 139.309611][ T792] br1: port 1(vx10) entered disabled state