[ 57.025004][ T1010] u32 classifier [ 57.025266][ T1010] input device check on [ 57.025441][ T1010] Actions configured [ 58.124430][ T1029] gre: GRE over IPv4 demultiplexor driver [ 58.138207][ T1029] ip_gre: GRE over IPv4 tunneling driver [ 61.106025][ T1091] ip6_gre: GRE over IPv6 tunneling driver [ 61.320434][ T51] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 61.325036][ T1096] ip (1096) used greatest stack depth: 23992 bytes left [ 61.468758][ T1098] ip (1098) used greatest stack depth: 23960 bytes left [ 61.816029][ T66] ================================================================== [ 61.816272][ T66] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 61.816477][ T66] Read of size 8 at addr ffff8880094a00f8 by task kworker/u16:1/66 [ 61.816667][ T66] [ 61.816737][ T66] CPU: 2 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.12.0-virtme #1 [ 61.816943][ T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 61.817109][ T66] Workqueue: netns cleanup_net [ 61.817246][ T66] Call Trace: [ 61.817345][ T66] [ 61.817416][ T66] dump_stack_lvl+0x82/0xd0 [ 61.817552][ T66] print_address_description.constprop.0+0x2c/0x3b0 [ 61.817729][ T66] ? cleanup_net+0xa5d/0xb90 [ 61.817860][ T66] print_report+0xb4/0x270 [ 61.817987][ T66] ? kasan_addr_to_slab+0x25/0x80 [ 61.818114][ T66] kasan_report+0xbd/0xf0 [ 61.818214][ T66] ? cleanup_net+0xa5d/0xb90 [ 61.818345][ T66] cleanup_net+0xa5d/0xb90 [ 61.818473][ T66] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 61.818608][ T66] ? __pfx_cleanup_net+0x10/0x10 [ 61.818732][ T66] ? trace_lock_acquire+0x148/0x1f0 [ 61.818857][ T66] ? lock_acquire+0x32/0xc0 [ 61.818979][ T66] ? process_one_work+0xe0b/0x16d0 [ 61.819109][ T66] process_one_work+0xe55/0x16d0 [ 61.819237][ T66] ? __pfx___lock_release+0x10/0x10 [ 61.819366][ T66] ? __pfx_process_one_work+0x10/0x10 [ 61.819493][ T66] ? assign_work+0x16c/0x240 [ 61.819617][ T66] worker_thread+0x58c/0xce0 [ 61.819740][ T66] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 61.819896][ T66] ? __pfx_worker_thread+0x10/0x10 [ 61.820030][ T66] ? __pfx_worker_thread+0x10/0x10 [ 61.820157][ T66] kthread+0x28a/0x350 [ 61.820255][ T66] ? __pfx_kthread+0x10/0x10 [ 61.820387][ T66] ret_from_fork+0x31/0x70 [ 61.820518][ T66] ? __pfx_kthread+0x10/0x10 [ 61.820647][ T66] ret_from_fork_asm+0x1a/0x30 [ 61.820785][ T66] [ 61.820889][ T66] [ 61.820952][ T66] Allocated by task 1061: [ 61.821048][ T66] kasan_save_stack+0x24/0x50 [ 61.821182][ T66] kasan_save_track+0x14/0x30 [ 61.821311][ T66] __kasan_slab_alloc+0x59/0x70 [ 61.821436][ T66] kmem_cache_alloc_noprof+0x10b/0x350 [ 61.821565][ T66] copy_net_ns+0xc6/0x540 [ 61.821659][ T66] create_new_namespaces+0x35f/0x920 [ 61.821790][ T66] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 61.821918][ T66] ksys_unshare+0x2c4/0x6e0 [ 61.822046][ T66] __x64_sys_unshare+0x31/0x40 [ 61.822173][ T66] do_syscall_64+0xc1/0x1d0 [ 61.822303][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 61.822468][ T66] [ 61.822536][ T66] Freed by task 66: [ 61.822629][ T66] kasan_save_stack+0x24/0x50 [ 61.822755][ T66] kasan_save_track+0x14/0x30 [ 61.822878][ T66] kasan_save_free_info+0x3b/0x60 [ 61.823009][ T66] __kasan_slab_free+0x38/0x50 [ 61.823137][ T66] kmem_cache_free+0xf8/0x330 [ 61.823264][ T66] cleanup_net+0x5a8/0xb90 [ 61.823393][ T66] process_one_work+0xe55/0x16d0 [ 61.823522][ T66] worker_thread+0x58c/0xce0 [ 61.823647][ T66] kthread+0x28a/0x350 [ 61.823747][ T66] ret_from_fork+0x31/0x70 [ 61.823876][ T66] ret_from_fork_asm+0x1a/0x30 [ 61.824001][ T66] [ 61.824065][ T66] Last potentially related work creation: [ 61.824192][ T66] kasan_save_stack+0x24/0x50 [ 61.824317][ T66] __kasan_record_aux_stack+0x8e/0xa0 [ 61.824444][ T66] insert_work+0x34/0x230 [ 61.824540][ T66] __queue_work+0x5fd/0xa40 [ 61.824674][ T66] queue_delayed_work_on+0x8c/0xa0 [ 61.824800][ T66] __inet_insert_ifa+0x751/0xb10 [ 61.824931][ T66] inet_rtm_newaddr+0x833/0xbd0 [ 61.825062][ T66] rtnetlink_rcv_msg+0x712/0xc10 [ 61.825200][ T66] netlink_rcv_skb+0x130/0x360 [ 61.825338][ T66] netlink_unicast+0x44b/0x710 [ 61.825469][ T66] netlink_sendmsg+0x723/0xbe0 [ 61.825596][ T66] ____sys_sendmsg+0x7ac/0xa10 [ 61.825731][ T66] ___sys_sendmsg+0xee/0x170 [ 61.825864][ T66] __sys_sendmsg+0x109/0x1a0 [ 61.825996][ T66] do_syscall_64+0xc1/0x1d0 [ 61.826127][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 61.826288][ T66] [ 61.826354][ T66] Second to last potentially related work creation: [ 61.826510][ T66] kasan_save_stack+0x24/0x50 [ 61.826644][ T66] __kasan_record_aux_stack+0x8e/0xa0 [ 61.826775][ T66] insert_work+0x34/0x230 [ 61.826875][ T66] __queue_work+0x5fd/0xa40 [ 61.827010][ T66] queue_delayed_work_on+0x8c/0xa0 [ 61.827138][ T66] __inet_insert_ifa+0x751/0xb10 [ 61.827266][ T66] inetdev_event+0xb18/0xcf0 [ 61.827395][ T66] notifier_call_chain+0xcd/0x150 [ 61.827525][ T66] __dev_notify_flags+0xe6/0x250 [ 61.827661][ T66] dev_change_flags+0xec/0x160 [ 61.827792][ T66] do_setlink.constprop.0+0x79d/0x2300 [ 61.827918][ T66] rtnl_newlink+0x6de/0xa80 [ 61.828048][ T66] rtnetlink_rcv_msg+0x712/0xc10 [ 61.828178][ T66] netlink_rcv_skb+0x130/0x360 [ 61.828308][ T66] netlink_unicast+0x44b/0x710 [ 61.828436][ T66] netlink_sendmsg+0x723/0xbe0 [ 61.828567][ T66] ____sys_sendmsg+0x7ac/0xa10 [ 61.828708][ T66] ___sys_sendmsg+0xee/0x170 [ 61.828848][ T66] __sys_sendmsg+0x109/0x1a0 [ 61.828970][ T66] do_syscall_64+0xc1/0x1d0 [ 61.829101][ T66] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 61.829262][ T66] [ 61.829330][ T66] The buggy address belongs to the object at ffff8880094a0040 [ 61.829330][ T66] which belongs to the cache net_namespace of size 6528 [ 61.829670][ T66] The buggy address is located 184 bytes inside of [ 61.829670][ T66] freed 6528-byte region [ffff8880094a0040, ffff8880094a19c0) [ 61.829974][ T66] [ 61.830041][ T66] The buggy address belongs to the physical page: [ 61.830195][ T66] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880094a3640 pfn:0x94a0 [ 61.830449][ T66] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 61.830646][ T66] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 61.830810][ T66] page_type: f5(slab) [ 61.830912][ T66] raw: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 61.831143][ T66] raw: ffff8880094a3640 0000000000040002 00000001f5000000 0000000000000000 [ 61.831371][ T66] head: 0080000000000240 ffff888001975240 ffff88800197a088 ffff88800197a088 [ 61.831602][ T66] head: ffff8880094a3640 0000000000040002 00000001f5000000 0000000000000000 [ 61.831829][ T66] head: 0080000000000003 ffffea0000252801 ffffffffffffffff 0000000000000000 [ 61.832045][ T66] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 61.832269][ T66] page dumped because: kasan: bad access detected [ 61.832425][ T66] [ 61.832489][ T66] Memory state around the buggy address: [ 61.832615][ T66] ffff88800949ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 61.832796][ T66] ffff8880094a0000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 61.832978][ T66] >ffff8880094a0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.833163][ T66] ^ [ 61.833340][ T66] ffff8880094a0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.833520][ T66] ffff8880094a0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 61.833697][ T66] ================================================================== [ 61.833929][ T66] Disabling lock debugging due to kernel taint [ 63.866033][ T50] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 64.182970][ T51] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 64.649198][ T1170] test-br0: port 1(test-dummy0) entered blocking state [ 64.649429][ T1170] test-br0: port 1(test-dummy0) entered disabled state [ 64.649635][ T1170] test-dummy0: entered allmulticast mode [ 64.650579][ T1170] test-dummy0: entered promiscuous mode [ 64.716344][ T1174] test-br0: port 1(test-dummy0) entered blocking state [ 64.716560][ T1174] test-br0: port 1(test-dummy0) entered forwarding state [ 65.839289][ T1210] test-dummy0: left allmulticast mode [ 65.839516][ T1210] test-dummy0: left promiscuous mode [ 65.839805][ T1210] test-br0: port 1(test-dummy0) entered disabled state [ 127.011415][ T3438] MACsec IEEE 802.1AE [ 127.696302][ T3459] Initializing XFRM netlink socket [ 129.648606][ T3350] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 132.569643][ T3578] test-br0: port 1(vxlan10) entered blocking state [ 132.569928][ T3578] test-br0: port 1(vxlan10) entered disabled state [ 132.570117][ T3578] vxlan10: entered allmulticast mode [ 132.571004][ T3578] vxlan10: entered promiscuous mode [ 132.931459][ T66] vxlan10: left allmulticast mode [ 132.931626][ T66] vxlan10: left promiscuous mode [ 132.931901][ T66] test-br0: port 1(vxlan10) entered disabled state [ 133.519296][ T3608] test-br0: port 1(dummy1) entered blocking state [ 133.519516][ T3608] test-br0: port 1(dummy1) entered disabled state [ 133.519694][ T3608] dummy1: entered allmulticast mode [ 133.520896][ T3608] dummy1: entered promiscuous mode [ 133.887578][ T66] dummy1: left allmulticast mode [ 133.887737][ T66] dummy1: left promiscuous mode [ 133.888226][ T66] test-br0: port 1(dummy1) entered disabled state [ 134.891117][ T3350] netdevsim netdevsim20 eni20np1: renamed from eth1 [ 134.978573][ T3654] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 135.458284][ T3669] test-bond0: (slave eni10np1): Enslaving as a backup interface with an up link [ 135.522219][ T3671] test-bond0: (slave eni20np1): Enslaving as a backup interface with an up link [ 135.676669][ T3681] test-br0: port 1(test-bond0) entered blocking state [ 135.676880][ T3681] test-br0: port 1(test-bond0) entered disabled state [ 135.677059][ T3681] test-bond0: entered allmulticast mode [ 135.677194][ T3681] netdevsim netdevsim10 eni10np1: entered allmulticast mode [ 135.677420][ T3681] netdevsim netdevsim20 eni20np1: entered allmulticast mode [ 135.678613][ T3681] test-bond0: entered promiscuous mode [ 135.678756][ T3681] netdevsim netdevsim10 eni10np1: entered promiscuous mode [ 135.679116][ T3681] netdevsim netdevsim20 eni20np1: entered promiscuous mode [ 135.742606][ T3684] test-bond0: left allmulticast mode [ 135.743405][ T3684] netdevsim netdevsim10 eni10np1: left allmulticast mode [ 135.743702][ T3684] netdevsim netdevsim20 eni20np1: left allmulticast mode [ 135.743943][ T3684] test-bond0: left promiscuous mode [ 135.744097][ T3684] netdevsim netdevsim10 eni10np1: left promiscuous mode [ 135.744416][ T3684] netdevsim netdevsim20 eni20np1: left promiscuous mode [ 135.744849][ T3684] test-br0: port 1(test-bond0) entered disabled state [ 135.826209][ T3685] test-bond0 (unregistering): (slave eni10np1): Releasing backup interface [ 135.852312][ T3685] test-bond0 (unregistering): (slave eni20np1): Releasing backup interface [ 135.873342][ T3685] test-bond0 (unregistering): Released all slaves [ 138.660108][ T3764] bond123: (slave test-dummy0): Enslaving as an active interface with an up link [ 138.728970][ T66] bond123 (unregistering): (slave test-dummy0): Releasing backup interface [ 138.743272][ T66] bond123 (unregistering): Released all slaves