[ 15.029668][ T266] ip (266) used greatest stack depth: 23568 bytes left [ 44.335096][ T512] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 44.728610][ T517] br0: port 1(veth0) entered blocking state [ 44.729091][ T517] br0: port 1(veth0) entered disabled state [ 44.729519][ T517] veth0: entered allmulticast mode [ 44.731568][ T517] veth0: entered promiscuous mode [ 45.077224][ T520] br0: port 1(veth0) entered blocking state [ 45.077674][ T520] br0: port 1(veth0) entered forwarding state [ 48.652601][ T565] veth0: left allmulticast mode [ 48.652855][ T565] veth0: left promiscuous mode [ 48.653200][ T565] br0: port 1(veth0) entered disabled state [ 48.985228][ T568] 8021q: 802.1Q VLAN Support v1.8 [ 49.344400][ T572] br0: port 1(veth0.10) entered blocking state [ 49.344696][ T572] br0: port 1(veth0.10) entered disabled state [ 49.344975][ T572] veth0.10: entered allmulticast mode [ 49.345163][ T572] veth0: entered allmulticast mode [ 49.348192][ T572] veth0.10: entered promiscuous mode [ 49.348421][ T572] veth0: entered promiscuous mode [ 49.356697][ T572] br0: port 1(veth0.10) entered blocking state [ 49.357010][ T572] br0: port 1(veth0.10) entered forwarding state [ 53.285353][ T623] veth0: left allmulticast mode [ 53.285614][ T623] veth0: left promiscuous mode [ 53.287485][ T623] br0: port 1(veth0.10) entered disabled state [ 53.510585][ T625] veth0.10 (unregistering): left allmulticast mode [ 53.510952][ T625] veth0.10 (unregistering): left promiscuous mode [ 53.511281][ T625] br0: port 1(veth0.10) entered disabled state [ 55.708095][ T648] Initializing XFRM netlink socket [ 86.838714][ T944] br0: port 1(veth0) entered blocking state [ 86.839053][ T944] br0: port 1(veth0) entered disabled state [ 86.839643][ T944] veth0: entered allmulticast mode [ 86.841621][ T944] veth0: entered promiscuous mode [ 87.153872][ T947] br0: port 1(veth0) entered blocking state [ 87.154190][ T947] br0: port 1(veth0) entered forwarding state [ 91.619745][ T992] veth0: left allmulticast mode [ 91.619998][ T992] veth0: left promiscuous mode [ 91.620341][ T992] br0: port 1(veth0) entered disabled state [ 92.225479][ T997] br0: port 1(veth0.10) entered blocking state [ 92.225831][ T997] br0: port 1(veth0.10) entered disabled state [ 92.226123][ T997] veth0.10: entered allmulticast mode [ 92.226362][ T997] veth0: entered allmulticast mode [ 92.228315][ T997] veth0.10: entered promiscuous mode [ 92.228554][ T997] veth0: entered promiscuous mode [ 92.229801][ T997] br0: port 1(veth0.10) entered blocking state [ 92.230089][ T997] br0: port 1(veth0.10) entered forwarding state [ 97.007812][ T1048] veth0: left allmulticast mode [ 97.008076][ T1048] veth0: left promiscuous mode [ 97.009708][ T1048] br0: port 1(veth0.10) entered disabled state [ 97.217038][ T1050] veth0.10 (unregistering): left allmulticast mode [ 97.217361][ T1050] veth0.10 (unregistering): left promiscuous mode [ 97.217598][ T1050] br0: port 1(veth0.10) entered disabled state [ 106.844736][ T67] ================================================================== [ 106.845050][ T67] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40 [ 106.845330][ T67] Read of size 8 at addr ffff8880056000f8 by task kworker/u16:1/67 [ 106.845584][ T67] [ 106.845681][ T67] CPU: 2 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.12.0-virtme #1 [ 106.845956][ T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 106.846191][ T67] Workqueue: netns cleanup_net [ 106.846395][ T67] Call Trace: [ 106.846526][ T67] [ 106.846622][ T67] dump_stack_lvl+0x82/0xd0 [ 106.846802][ T67] print_address_description.constprop.0+0x2c/0x3b0 [ 106.847018][ T67] ? cleanup_net+0x932/0xa40 [ 106.847211][ T67] print_report+0xb4/0x270 [ 106.847387][ T67] ? kasan_addr_to_slab+0x25/0x80 [ 106.847583][ T67] kasan_report+0xbd/0xf0 [ 106.847728][ T67] ? cleanup_net+0x932/0xa40 [ 106.847929][ T67] cleanup_net+0x932/0xa40 [ 106.848125][ T67] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 106.848326][ T67] ? __pfx_cleanup_net+0x10/0x10 [ 106.848510][ T67] ? trace_lock_acquire+0x148/0x1f0 [ 106.848713][ T67] ? lock_acquire+0x32/0xc0 [ 106.848917][ T67] ? process_one_work+0xe0b/0x16d0 [ 106.849117][ T67] process_one_work+0xe55/0x16d0 [ 106.849314][ T67] ? __pfx___lock_release+0x10/0x10 [ 106.849494][ T67] ? __pfx_process_one_work+0x10/0x10 [ 106.849678][ T67] ? assign_work+0x16c/0x240 [ 106.849867][ T67] worker_thread+0x58c/0xce0 [ 106.850061][ T67] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 106.850291][ T67] ? __pfx_worker_thread+0x10/0x10 [ 106.850481][ T67] ? __pfx_worker_thread+0x10/0x10 [ 106.850669][ T67] kthread+0x28a/0x350 [ 106.850816][ T67] ? __pfx_kthread+0x10/0x10 [ 106.851002][ T67] ret_from_fork+0x31/0x70 [ 106.851195][ T67] ? __pfx_kthread+0x10/0x10 [ 106.851392][ T67] ret_from_fork_asm+0x1a/0x30 [ 106.851591][ T67] [ 106.851734][ T67] [ 106.851849][ T67] Allocated by task 718: [ 106.851990][ T67] kasan_save_stack+0x24/0x50 [ 106.852169][ T67] kasan_save_track+0x14/0x30 [ 106.852348][ T67] __kasan_slab_alloc+0x59/0x70 [ 106.852535][ T67] kmem_cache_alloc_noprof+0x10b/0x350 [ 106.852715][ T67] copy_net_ns+0xc6/0x340 [ 106.852864][ T67] create_new_namespaces+0x35f/0x920 [ 106.853051][ T67] unshare_nsproxy_namespaces+0x8d/0x130 [ 106.853243][ T67] ksys_unshare+0x2a9/0x660 [ 106.853430][ T67] __x64_sys_unshare+0x31/0x40 [ 106.853618][ T67] do_syscall_64+0xc1/0x1d0 [ 106.853805][ T67] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 106.854036][ T67] [ 106.854134][ T67] Freed by task 67: [ 106.854269][ T67] kasan_save_stack+0x24/0x50 [ 106.854454][ T67] kasan_save_track+0x14/0x30 [ 106.854637][ T67] kasan_save_free_info+0x3b/0x60 [ 106.854822][ T67] __kasan_slab_free+0x38/0x50 [ 106.855007][ T67] kmem_cache_free+0xf8/0x330 [ 106.855195][ T67] cleanup_net+0x5a8/0xa40 [ 106.855378][ T67] process_one_work+0xe55/0x16d0 [ 106.855564][ T67] worker_thread+0x58c/0xce0 [ 106.855760][ T67] kthread+0x28a/0x350 [ 106.855906][ T67] ret_from_fork+0x31/0x70 [ 106.856095][ T67] ret_from_fork_asm+0x1a/0x30 [ 106.856276][ T67] [ 106.856369][ T67] Last potentially related work creation: [ 106.856648][ T67] kasan_save_stack+0x24/0x50 [ 106.856841][ T67] __kasan_record_aux_stack+0x8e/0xa0 [ 106.857030][ T67] insert_work+0x34/0x230 [ 106.857186][ T67] __queue_work+0x5fd/0xa40 [ 106.857374][ T67] queue_delayed_work_on+0x8c/0xa0 [ 106.857555][ T67] __inet_insert_ifa+0x751/0xb10 [ 106.857746][ T67] inet_rtm_newaddr+0x833/0xbd0 [ 106.857945][ T67] rtnetlink_rcv_msg+0x712/0xc10 [ 106.858254][ T67] netlink_rcv_skb+0x130/0x360 [ 106.858453][ T67] netlink_unicast+0x44b/0x710 [ 106.858637][ T67] netlink_sendmsg+0x723/0xbe0 [ 106.858844][ T67] ____sys_sendmsg+0x7ac/0xa10 [ 106.859154][ T67] ___sys_sendmsg+0xee/0x170 [ 106.859352][ T67] __sys_sendmsg+0x109/0x1a0 [ 106.859546][ T67] do_syscall_64+0xc1/0x1d0 [ 106.859735][ T67] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 106.860093][ T67] [ 106.860194][ T67] Second to last potentially related work creation: [ 106.860432][ T67] kasan_save_stack+0x24/0x50 [ 106.860630][ T67] __kasan_record_aux_stack+0x8e/0xa0 [ 106.860933][ T67] insert_work+0x34/0x230 [ 106.861072][ T67] __queue_work+0x5fd/0xa40 [ 106.861257][ T67] queue_delayed_work_on+0x8c/0xa0 [ 106.861431][ T67] __inet_insert_ifa+0x751/0xb10 [ 106.861617][ T67] inet_rtm_newaddr+0x833/0xbd0 [ 106.861921][ T67] rtnetlink_rcv_msg+0x712/0xc10 [ 106.862129][ T67] netlink_rcv_skb+0x130/0x360 [ 106.862324][ T67] netlink_unicast+0x44b/0x710 [ 106.862518][ T67] netlink_sendmsg+0x723/0xbe0 [ 106.862820][ T67] ____sys_sendmsg+0x7ac/0xa10 [ 106.863017][ T67] ___sys_sendmsg+0xee/0x170 [ 106.863208][ T67] __sys_sendmsg+0x109/0x1a0 [ 106.863385][ T67] do_syscall_64+0xc1/0x1d0 [ 106.863681][ T67] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 106.863924][ T67] [ 106.864025][ T67] The buggy address belongs to the object at ffff888005600040 [ 106.864025][ T67] which belongs to the cache net_namespace of size 6592 [ 106.864509][ T67] The buggy address is located 184 bytes inside of [ 106.864509][ T67] freed 6592-byte region [ffff888005600040, ffff888005601a00) [ 106.864961][ T67] [ 106.865066][ T67] The buggy address belongs to the physical page: [ 106.865290][ T67] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5600 [ 106.865626][ T67] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 106.865906][ T67] flags: 0x80000000000040(head|node=0|zone=1) [ 106.866143][ T67] page_type: f5(slab) [ 106.866301][ T67] raw: 0080000000000040 ffff888001963240 ffffea0000233e10 ffff8880019680a8 [ 106.866669][ T67] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 106.867006][ T67] head: 0080000000000040 ffff888001963240 ffffea0000233e10 ffff8880019680a8 [ 106.867341][ T67] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 106.867676][ T67] head: 0080000000000003 ffffea0000158001 ffffffffffffffff 0000000000000000 [ 106.868018][ T67] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 106.868352][ T67] page dumped because: kasan: bad access detected [ 106.868582][ T67] [ 106.868675][ T67] Memory state around the buggy address: [ 106.868865][ T67] ffff8880055fff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 106.869134][ T67] ffff888005600000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 106.869381][ T67] >ffff888005600080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 106.869625][ T67] ^ [ 106.869875][ T67] ffff888005600100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 106.870432][ T67] ffff888005600180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 106.870683][ T67] ================================================================== [ 106.871025][ T67] Disabling lock debugging due to kernel taint