[ 59.678935][ T1009] u32 classifier [ 59.679189][ T1009] input device check on [ 59.679355][ T1009] Actions configured [ 60.827446][ T1028] gre: GRE over IPv4 demultiplexor driver [ 60.841514][ T1028] ip_gre: GRE over IPv4 tunneling driver [ 64.122980][ T1090] ip6_gre: GRE over IPv6 tunneling driver [ 64.359460][ T9] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 64.463584][ T11] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 64.874308][ T11] ================================================================== [ 64.874630][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 64.874847][ T11] Read of size 8 at addr ffff88800cfe00f8 by task kworker/u16:0/11 [ 64.875044][ T11] [ 64.875116][ T11] CPU: 3 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 64.875325][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 64.875501][ T11] Workqueue: netns cleanup_net [ 64.875650][ T11] Call Trace: [ 64.875762][ T11] [ 64.875839][ T11] dump_stack_lvl+0x82/0xd0 [ 64.875986][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 64.876185][ T11] ? cleanup_net+0xa5d/0xb90 [ 64.876325][ T11] print_report+0xb4/0x270 [ 64.876463][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 64.876600][ T11] kasan_report+0xbd/0xf0 [ 64.876705][ T11] ? cleanup_net+0xa5d/0xb90 [ 64.876844][ T11] cleanup_net+0xa5d/0xb90 [ 64.876990][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 64.877146][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 64.877293][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 64.877432][ T11] ? lock_acquire+0x32/0xc0 [ 64.877570][ T11] ? process_one_work+0xe0b/0x16d0 [ 64.877712][ T11] process_one_work+0xe55/0x16d0 [ 64.877853][ T11] ? __pfx___lock_release+0x10/0x10 [ 64.877991][ T11] ? __pfx_process_one_work+0x10/0x10 [ 64.878134][ T11] ? assign_work+0x16c/0x240 [ 64.878271][ T11] worker_thread+0x58c/0xce0 [ 64.878415][ T11] ? __pfx_worker_thread+0x10/0x10 [ 64.878553][ T11] kthread+0x28a/0x350 [ 64.878659][ T11] ? __pfx_kthread+0x10/0x10 [ 64.878799][ T11] ret_from_fork+0x31/0x70 [ 64.878939][ T11] ? __pfx_kthread+0x10/0x10 [ 64.879088][ T11] ret_from_fork_asm+0x1a/0x30 [ 64.879238][ T11] [ 64.879346][ T11] [ 64.879419][ T11] Allocated by task 1060: [ 64.879525][ T11] kasan_save_stack+0x24/0x50 [ 64.879664][ T11] kasan_save_track+0x14/0x30 [ 64.879803][ T11] __kasan_slab_alloc+0x59/0x70 [ 64.879941][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 64.880083][ T11] copy_net_ns+0xc6/0x540 [ 64.880188][ T11] create_new_namespaces+0x35f/0x920 [ 64.880331][ T11] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 64.880471][ T11] ksys_unshare+0x2c4/0x6e0 [ 64.880615][ T11] __x64_sys_unshare+0x31/0x40 [ 64.880756][ T11] do_syscall_64+0xc1/0x1d0 [ 64.880899][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.881076][ T11] [ 64.881148][ T11] Freed by task 11: [ 64.881254][ T11] kasan_save_stack+0x24/0x50 [ 64.881398][ T11] kasan_save_track+0x14/0x30 [ 64.881538][ T11] kasan_save_free_info+0x3b/0x60 [ 64.881679][ T11] __kasan_slab_free+0x38/0x50 [ 64.881816][ T11] kmem_cache_free+0xf8/0x330 [ 64.881955][ T11] cleanup_net+0x5a8/0xb90 [ 64.882092][ T11] process_one_work+0xe55/0x16d0 [ 64.882230][ T11] worker_thread+0x58c/0xce0 [ 64.882371][ T11] kthread+0x28a/0x350 [ 64.882480][ T11] ret_from_fork+0x31/0x70 [ 64.882616][ T11] ret_from_fork_asm+0x1a/0x30 [ 64.882753][ T11] [ 64.882823][ T11] Last potentially related work creation: [ 64.882965][ T11] kasan_save_stack+0x24/0x50 [ 64.883107][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 64.883245][ T11] insert_work+0x34/0x230 [ 64.883351][ T11] __queue_work+0x5fd/0xa40 [ 64.883497][ T11] queue_delayed_work_on+0x8c/0xa0 [ 64.883638][ T11] __inet_insert_ifa+0x751/0xb10 [ 64.883783][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 64.883924][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 64.884083][ T11] netlink_rcv_skb+0x130/0x360 [ 64.884226][ T11] netlink_unicast+0x44b/0x710 [ 64.884365][ T11] netlink_sendmsg+0x723/0xbe0 [ 64.884505][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 64.884652][ T11] ___sys_sendmsg+0xee/0x170 [ 64.884792][ T11] __sys_sendmsg+0x109/0x1a0 [ 64.884935][ T11] do_syscall_64+0xc1/0x1d0 [ 64.885075][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.885250][ T11] [ 64.885322][ T11] Second to last potentially related work creation: [ 64.885512][ T11] kasan_save_stack+0x24/0x50 [ 64.885657][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 64.885801][ T11] insert_work+0x34/0x230 [ 64.885906][ T11] __queue_work+0x5fd/0xa40 [ 64.886047][ T11] queue_delayed_work_on+0x8c/0xa0 [ 64.886189][ T11] __inet_insert_ifa+0x751/0xb10 [ 64.886334][ T11] inetdev_event+0xb18/0xcf0 [ 64.886470][ T11] notifier_call_chain+0xcd/0x150 [ 64.886614][ T11] __dev_notify_flags+0xe6/0x250 [ 64.886757][ T11] dev_change_flags+0xec/0x160 [ 64.886898][ T11] do_setlink.constprop.0+0x79d/0x2300 [ 64.887048][ T11] rtnl_newlink+0x6de/0xa80 [ 64.887191][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 64.887332][ T11] netlink_rcv_skb+0x130/0x360 [ 64.887474][ T11] netlink_unicast+0x44b/0x710 [ 64.887613][ T11] netlink_sendmsg+0x723/0xbe0 [ 64.887755][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 64.887901][ T11] ___sys_sendmsg+0xee/0x170 [ 64.888042][ T11] __sys_sendmsg+0x109/0x1a0 [ 64.888185][ T11] do_syscall_64+0xc1/0x1d0 [ 64.888326][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 64.888506][ T11] [ 64.888577][ T11] The buggy address belongs to the object at ffff88800cfe0040 [ 64.888577][ T11] which belongs to the cache net_namespace of size 6528 [ 64.888953][ T11] The buggy address is located 184 bytes inside of [ 64.888953][ T11] freed 6528-byte region [ffff88800cfe0040, ffff88800cfe19c0) [ 64.889287][ T11] [ 64.889361][ T11] The buggy address belongs to the physical page: [ 64.889538][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800cfe3640 pfn:0xcfe0 [ 64.889817][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 64.890029][ T11] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 64.890202][ T11] page_type: f5(slab) [ 64.890312][ T11] raw: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 64.890557][ T11] raw: ffff88800cfe3640 0000000000040002 00000001f5000000 0000000000000000 [ 64.890804][ T11] head: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 64.891052][ T11] head: ffff88800cfe3640 0000000000040002 00000001f5000000 0000000000000000 [ 64.891294][ T11] head: 0080000000000003 ffffea000033f801 ffffffffffffffff 0000000000000000 [ 64.891540][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 64.891779][ T11] page dumped because: kasan: bad access detected [ 64.891955][ T11] [ 64.892027][ T11] Memory state around the buggy address: [ 64.892162][ T11] ffff88800cfdff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 64.892361][ T11] ffff88800cfe0000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 64.892558][ T11] >ffff88800cfe0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.892767][ T11] ^ [ 64.892972][ T11] ffff88800cfe0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.893172][ T11] ffff88800cfe0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.893370][ T11] ================================================================== [ 64.893609][ T11] Disabling lock debugging due to kernel taint [ 66.762273][ T62] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 67.089289][ T62] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 67.600986][ T1168] test-br0: port 1(test-dummy0) entered blocking state [ 67.601713][ T1168] test-br0: port 1(test-dummy0) entered disabled state [ 67.601932][ T1168] test-dummy0: entered allmulticast mode [ 67.602903][ T1168] test-dummy0: entered promiscuous mode [ 67.672688][ T1172] test-br0: port 1(test-dummy0) entered blocking state [ 67.672907][ T1172] test-br0: port 1(test-dummy0) entered forwarding state [ 68.852362][ T1208] test-dummy0: left allmulticast mode [ 68.852554][ T1208] test-dummy0: left promiscuous mode [ 68.852821][ T1208] test-br0: port 1(test-dummy0) entered disabled state [ 130.312140][ T3435] MACsec IEEE 802.1AE [ 131.019870][ T3456] Initializing XFRM netlink socket [ 133.025258][ T3353] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 135.950981][ T3576] test-br0: port 1(vxlan10) entered blocking state [ 135.951253][ T3576] test-br0: port 1(vxlan10) entered disabled state [ 135.951464][ T3576] vxlan10: entered allmulticast mode [ 135.952381][ T3576] vxlan10: entered promiscuous mode [ 136.320243][ T11] vxlan10: left allmulticast mode [ 136.320432][ T11] vxlan10: left promiscuous mode [ 136.320696][ T11] test-br0: port 1(vxlan10) entered disabled state [ 136.933122][ T3606] test-br0: port 1(dummy1) entered blocking state [ 136.933341][ T3606] test-br0: port 1(dummy1) entered disabled state [ 136.933547][ T3606] dummy1: entered allmulticast mode [ 136.935600][ T3606] dummy1: entered promiscuous mode [ 137.324915][ T11] dummy1: left allmulticast mode [ 137.325115][ T11] dummy1: left promiscuous mode [ 137.325383][ T11] test-br0: port 1(dummy1) entered disabled state [ 138.403689][ T3652] netdevsim netdevsim20 eni20np1: renamed from eth1 [ 138.487315][ T3654] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 138.995202][ T3667] test-bond0: (slave eni10np1): Enslaving as a backup interface with an up link [ 139.073768][ T3669] test-bond0: (slave eni20np1): Enslaving as a backup interface with an up link [ 139.220847][ T3680] test-br0: port 1(test-bond0) entered blocking state [ 139.221077][ T3680] test-br0: port 1(test-bond0) entered disabled state [ 139.221295][ T3680] test-bond0: entered allmulticast mode [ 139.221444][ T3680] netdevsim netdevsim10 eni10np1: entered allmulticast mode [ 139.221675][ T3680] netdevsim netdevsim20 eni20np1: entered allmulticast mode [ 139.222950][ T3680] test-bond0: entered promiscuous mode [ 139.223112][ T3680] netdevsim netdevsim10 eni10np1: entered promiscuous mode [ 139.223461][ T3680] netdevsim netdevsim20 eni20np1: entered promiscuous mode [ 139.273971][ T3682] test-bond0: left allmulticast mode [ 139.274204][ T3682] netdevsim netdevsim10 eni10np1: left allmulticast mode [ 139.274420][ T3682] netdevsim netdevsim20 eni20np1: left allmulticast mode [ 139.274617][ T3682] test-bond0: left promiscuous mode [ 139.274773][ T3682] netdevsim netdevsim10 eni10np1: left promiscuous mode [ 139.275100][ T3682] netdevsim netdevsim20 eni20np1: left promiscuous mode [ 139.275562][ T3682] test-br0: port 1(test-bond0) entered disabled state [ 139.377041][ T3683] test-bond0 (unregistering): (slave eni10np1): Releasing backup interface [ 139.393763][ T3683] test-bond0 (unregistering): (slave eni20np1): Releasing backup interface [ 139.410193][ T3683] test-bond0 (unregistering): Released all slaves [ 142.349712][ T3763] bond123: (slave test-dummy0): Enslaving as an active interface with an up link [ 142.423986][ T11] bond123 (unregistering): (slave test-dummy0): Releasing backup interface [ 142.430570][ T11] bond123 (unregistering): Released all slaves