[ 16.691467][ T278] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 16.891971][ T280] br0: port 1(veth1) entered blocking state [ 16.892465][ T280] br0: port 1(veth1) entered disabled state [ 16.892856][ T280] veth1: entered allmulticast mode [ 16.894937][ T280] veth1: entered promiscuous mode [ 16.988036][ T281] br0: port 2(veth2) entered blocking state [ 16.989136][ T281] br0: port 2(veth2) entered disabled state [ 16.989685][ T281] veth2: entered allmulticast mode [ 16.991638][ T281] veth2: entered promiscuous mode [ 17.091735][ T282] br0: port 3(veth3) entered blocking state [ 17.092045][ T282] br0: port 3(veth3) entered disabled state [ 17.092345][ T282] veth3: entered allmulticast mode [ 17.094226][ T282] veth3: entered promiscuous mode [ 17.923883][ T290] veth4: entered promiscuous mode [ 18.048840][ T291] br0: port 4(macvlan4) entered blocking state [ 18.049161][ T291] br0: port 4(macvlan4) entered disabled state [ 18.049463][ T291] macvlan4: entered allmulticast mode [ 18.049658][ T291] veth4: entered allmulticast mode [ 18.051911][ T291] macvlan4: entered promiscuous mode [ 18.149432][ T292] br0: entered promiscuous mode [ 18.396159][ T294] Bridge firewalling registered [ 20.028482][ T40] br0: port 1(veth1) entered blocking state [ 20.028891][ T40] br0: port 1(veth1) entered forwarding state [ 20.165263][ T46] br0: port 2(veth2) entered blocking state [ 20.165659][ T46] br0: port 2(veth2) entered forwarding state [ 20.255262][ T38] br0: port 3(veth3) entered blocking state [ 20.255710][ T38] br0: port 3(veth3) entered forwarding state [ 20.358884][ T39] br0: port 4(macvlan4) entered blocking state [ 20.359189][ T39] br0: port 4(macvlan4) entered forwarding state [ 76.690293][ T11] macvlan4: left allmulticast mode [ 76.690655][ T11] veth4: left allmulticast mode [ 76.690873][ T11] macvlan4: left promiscuous mode [ 76.691253][ T11] br0: port 4(macvlan4) entered disabled state [ 76.693862][ T11] veth3: left allmulticast mode [ 76.694095][ T11] veth3: left promiscuous mode [ 76.694455][ T11] br0: port 3(veth3) entered disabled state [ 76.696502][ T11] veth2: left allmulticast mode [ 76.696729][ T11] veth2: left promiscuous mode [ 76.697066][ T11] br0: port 2(veth2) entered disabled state [ 76.698700][ T11] veth1: left allmulticast mode [ 76.698921][ T11] veth1: left promiscuous mode [ 76.699253][ T11] br0: port 1(veth1) entered disabled state [ 76.769542][ T11] veth4: left promiscuous mode [ 77.297725][ T11] ================================================================== [ 77.297990][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40 [ 77.298217][ T11] Read of size 8 at addr ffff88800b9100f8 by task kworker/u16:0/11 [ 77.298417][ T11] [ 77.298512][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 77.298741][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 77.298923][ T11] Workqueue: netns cleanup_net [ 77.299080][ T11] Call Trace: [ 77.299207][ T11] [ 77.299297][ T11] dump_stack_lvl+0x82/0xd0 [ 77.299448][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 77.299647][ T11] ? cleanup_net+0x932/0xa40 [ 77.299804][ T11] print_report+0xb4/0x270 [ 77.299951][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 77.300102][ T11] kasan_report+0xbd/0xf0 [ 77.300227][ T11] ? cleanup_net+0x932/0xa40 [ 77.300370][ T11] cleanup_net+0x932/0xa40 [ 77.300510][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 77.300659][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 77.300794][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 77.300940][ T11] ? lock_acquire+0x32/0xc0 [ 77.301079][ T11] ? process_one_work+0xe0b/0x16d0 [ 77.301237][ T11] process_one_work+0xe55/0x16d0 [ 77.301390][ T11] ? __pfx___lock_release+0x10/0x10 [ 77.301530][ T11] ? __pfx_process_one_work+0x10/0x10 [ 77.301669][ T11] ? assign_work+0x16c/0x240 [ 77.301829][ T11] worker_thread+0x58c/0xce0 [ 77.301993][ T11] ? __pfx_worker_thread+0x10/0x10 [ 77.302129][ T11] kthread+0x28a/0x350 [ 77.302232][ T11] ? __pfx_kthread+0x10/0x10 [ 77.302367][ T11] ret_from_fork+0x31/0x70 [ 77.302503][ T11] ? __pfx_kthread+0x10/0x10 [ 77.302637][ T11] ret_from_fork_asm+0x1a/0x30 [ 77.302780][ T11] [ 77.302888][ T11] [ 77.302959][ T11] Allocated by task 249: [ 77.303066][ T11] kasan_save_stack+0x24/0x50 [ 77.303206][ T11] kasan_save_track+0x14/0x30 [ 77.303341][ T11] __kasan_slab_alloc+0x59/0x70 [ 77.303477][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 77.303628][ T11] copy_net_ns+0xc6/0x340 [ 77.303733][ T11] create_new_namespaces+0x35f/0x920 [ 77.303866][ T11] unshare_nsproxy_namespaces+0x8d/0x130 [ 77.304004][ T11] ksys_unshare+0x2a9/0x660 [ 77.304139][ T11] __x64_sys_unshare+0x31/0x40 [ 77.304273][ T11] do_syscall_64+0xc1/0x1d0 [ 77.304408][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.304576][ T11] [ 77.304647][ T11] Freed by task 11: [ 77.304766][ T11] kasan_save_stack+0x24/0x50 [ 77.304922][ T11] kasan_save_track+0x14/0x30 [ 77.305060][ T11] kasan_save_free_info+0x3b/0x60 [ 77.305215][ T11] __kasan_slab_free+0x38/0x50 [ 77.305355][ T11] kmem_cache_free+0xf8/0x330 [ 77.305507][ T11] cleanup_net+0x5a8/0xa40 [ 77.305643][ T11] process_one_work+0xe55/0x16d0 [ 77.305785][ T11] worker_thread+0x58c/0xce0 [ 77.305926][ T11] kthread+0x28a/0x350 [ 77.306037][ T11] ret_from_fork+0x31/0x70 [ 77.306190][ T11] ret_from_fork_asm+0x1a/0x30 [ 77.306343][ T11] [ 77.306427][ T11] Last potentially related work creation: [ 77.306566][ T11] kasan_save_stack+0x24/0x50 [ 77.306705][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 77.306844][ T11] insert_work+0x34/0x230 [ 77.306959][ T11] __queue_work+0x5fd/0xa40 [ 77.307099][ T11] queue_delayed_work_on+0x8c/0xa0 [ 77.307243][ T11] __inet_insert_ifa+0x751/0xb10 [ 77.307405][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 77.307551][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 77.307693][ T11] netlink_rcv_skb+0x130/0x360 [ 77.307840][ T11] netlink_unicast+0x44b/0x710 [ 77.307982][ T11] netlink_sendmsg+0x723/0xbe0 [ 77.308125][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 77.308299][ T11] ___sys_sendmsg+0xee/0x170 [ 77.308439][ T11] __sys_sendmsg+0x109/0x1a0 [ 77.308585][ T11] do_syscall_64+0xc1/0x1d0 [ 77.308726][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.308902][ T11] [ 77.308976][ T11] Second to last potentially related work creation: [ 77.309151][ T11] kasan_save_stack+0x24/0x50 [ 77.309293][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 77.309456][ T11] insert_work+0x34/0x230 [ 77.309574][ T11] __queue_work+0x5fd/0xa40 [ 77.309715][ T11] queue_delayed_work_on+0x8c/0xa0 [ 77.309853][ T11] __inet_insert_ifa+0x751/0xb10 [ 77.309993][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 77.310127][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 77.310269][ T11] netlink_rcv_skb+0x130/0x360 [ 77.310409][ T11] netlink_unicast+0x44b/0x710 [ 77.310551][ T11] netlink_sendmsg+0x723/0xbe0 [ 77.310713][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 77.310860][ T11] ___sys_sendmsg+0xee/0x170 [ 77.310999][ T11] __sys_sendmsg+0x109/0x1a0 [ 77.311138][ T11] do_syscall_64+0xc1/0x1d0 [ 77.311277][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.311451][ T11] [ 77.311524][ T11] The buggy address belongs to the object at ffff88800b910040 [ 77.311524][ T11] which belongs to the cache net_namespace of size 6592 [ 77.311895][ T11] The buggy address is located 184 bytes inside of [ 77.311895][ T11] freed 6592-byte region [ffff88800b910040, ffff88800b911a00) [ 77.312228][ T11] [ 77.312300][ T11] The buggy address belongs to the physical page: [ 77.312472][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xb910 [ 77.312717][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 77.312934][ T11] flags: 0x80000000000040(head|node=0|zone=1) [ 77.313117][ T11] page_type: f5(slab) [ 77.313225][ T11] raw: 0080000000000040 ffff888001963240 ffff8880019680a8 ffff8880019680a8 [ 77.313475][ T11] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 77.313736][ T11] head: 0080000000000040 ffff888001963240 ffff8880019680a8 ffff8880019680a8 [ 77.313990][ T11] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 77.314246][ T11] head: 0080000000000003 ffffea00002e4401 ffffffffffffffff 0000000000000000 [ 77.314486][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 77.314729][ T11] page dumped because: kasan: bad access detected [ 77.314901][ T11] [ 77.314971][ T11] Memory state around the buggy address: [ 77.315108][ T11] ffff88800b90ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 77.315307][ T11] ffff88800b910000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 77.315508][ T11] >ffff88800b910080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.315708][ T11] ^ [ 77.315905][ T11] ffff88800b910100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.316104][ T11] ffff88800b910180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 77.316302][ T11] ================================================================== [ 77.316536][ T11] Disabling lock debugging due to kernel taint