[ 21.181082][ T289] 8021q: 802.1Q VLAN Support v1.8
[ 23.957134][ T310] br0: port 1(veth1) entered blocking state
[ 23.958112][ T310] br0: port 1(veth1) entered disabled state
[ 23.959963][ T310] veth1: entered allmulticast mode
[ 23.966306][ T310] veth1: entered promiscuous mode
[ 24.121658][ T312] br0: port 2(veth2) entered blocking state
[ 24.122128][ T312] br0: port 2(veth2) entered disabled state
[ 24.122910][ T312] veth2: entered allmulticast mode
[ 24.126848][ T312] veth2: entered promiscuous mode
[ 24.595382][ T45] br0: port 1(veth1) entered blocking state
[ 24.596317][ T45] br0: port 1(veth1) entered forwarding state
[ 24.762497][ T38] br0: port 2(veth2) entered blocking state
[ 24.762948][ T38] br0: port 2(veth2) entered forwarding state
[ 88.557534][ T582] Mirror/redirect action on
[ 97.508315][ T619] br0: port 2(veth2) entered disabled state
[ 97.679198][ T620] br0: port 1(veth1) entered disabled state
[ 97.866576][ T621] veth2: left allmulticast mode
[ 97.867116][ T621] veth2: left promiscuous mode
[ 97.867922][ T621] br0: port 2(veth2) entered disabled state
[ 97.873411][ T621] veth1: left allmulticast mode
[ 97.873930][ T621] veth1: left promiscuous mode
[ 97.874699][ T621] br0: port 1(veth1) entered disabled state
[ 97.937000][ T621] ==================================================================
[ 97.937327][ T621] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 97.937629][ T621] Read of size 1 at addr ffff888009e326ac by task ip/621
[ 97.937859][ T621]
[ 97.937956][ T621] CPU: 2 UID: 0 PID: 621 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 97.937963][ T621] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.937966][ T621] Call Trace:
[ 97.937970][ T621]
[ 97.937972][ T621] dump_stack_lvl+0x82/0xc0
[ 97.937979][ T621] print_address_description.constprop.0+0x2c/0x3a0
[ 97.937985][ T621] ? kobject_put+0xbb/0xd0
[ 97.937989][ T621] print_report+0xb4/0x270
[ 97.937991][ T621] ? kobject_put+0xbb/0xd0
[ 97.937995][ T621] ? kasan_addr_to_slab+0x21/0x70
[ 97.937998][ T621] ? kobject_put+0xbb/0xd0
[ 97.938001][ T621] kasan_report+0xca/0x100
[ 97.938004][ T621] ? kobject_put+0xbb/0xd0
[ 97.938010][ T621] kobject_put+0xbb/0xd0
[ 97.938013][ T621] netdev_run_todo+0x5f0/0xc60
[ 97.938020][ T621] ? dev_ingress_queue_create+0x190/0x190
[ 97.938023][ T621] ? generic_xdp_install+0x410/0x410
[ 97.938025][ T621] ? kernfs_put.part.0+0x12d/0x480
[ 97.938034][ T621] ? unregister_netdevice_many+0x20/0x20
[ 97.938040][ T621] ? br_dev_delete+0x115/0x1a0 [bridge]
[ 97.938073][ T621] rtnl_dellink+0x350/0xa30
[ 97.938078][ T621] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 97.938097][ T621] ? find_held_lock+0x2b/0x80
[ 97.938107][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.938113][ T621] ? find_held_lock+0x2b/0x80
[ 97.938116][ T621] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 97.938119][ T621] ? __lock_release+0x5d/0x170
[ 97.938123][ T621] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 97.938126][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.938130][ T621] ? rtnl_port_fill+0x850/0x850
[ 97.938132][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.938139][ T621] netlink_rcv_skb+0x121/0x340
[ 97.938143][ T621] ? rtnl_port_fill+0x850/0x850
[ 97.938146][ T621] ? netlink_ack+0xdd0/0xdd0
[ 97.938153][ T621] ? netlink_deliver_tap+0x13e/0x340
[ 97.938155][ T621] ? netlink_deliver_tap+0xc3/0x340
[ 97.938159][ T621] netlink_unicast+0x4aa/0x780
[ 97.938163][ T621] ? netlink_attachskb+0x810/0x810
[ 97.938167][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.938174][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.938182][ T621] ? netlink_unicast+0x780/0x780
[ 97.938187][ T621] ? __import_iovec+0x230/0x3b0
[ 97.938199][ T621] ? netlink_unicast+0x780/0x780
[ 97.938204][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.938212][ T621] ? get_timestamp.constprop.0+0x380/0x380
[ 97.938216][ T621] ? __copy_msghdr+0x3c0/0x3c0
[ 97.938226][ T621] ___sys_sendmsg+0xed/0x170
[ 97.938230][ T621] ? kasan_record_aux_stack+0x8c/0xa0
[ 97.938233][ T621] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 97.938243][ T621] ? copy_msghdr_from_user+0x110/0x110
[ 97.938248][ T621] ? find_held_lock+0x2b/0x80
[ 97.938252][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.938258][ T621] ? find_held_lock+0x2b/0x80
[ 97.938261][ T621] ? __virt_addr_valid+0x22a/0x450
[ 97.938274][ T621] ? __lock_release+0x5d/0x170
[ 97.938285][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.938290][ T621] ? __call_rcu_common.constprop.0+0x318/0x630
[ 97.938295][ T621] ? __sys_sendmsg_sock+0x20/0x20
[ 97.938309][ T621] ? rcu_is_watching+0x12/0xb0
[ 97.938315][ T621] do_syscall_64+0xc1/0xfd0
[ 97.938321][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.938326][ T621] RIP: 0033:0x7f75ba6aa1d7
[ 97.938332][ T621] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 97.938335][ T621] RSP: 002b:00007ffeab8f89e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 97.938341][ T621] RAX: ffffffffffffffda RBX: 00007ffeab8f9110 RCX: 00007f75ba6aa1d7
[ 97.938344][ T621] RDX: 0000000000000000 RSI: 00007ffeab8f8a50 RDI: 0000000000000005
[ 97.938346][ T621] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 97.938347][ T621] R10: 00007f75ba5a6f60 R11: 0000000000000246 R12: 0000000000000002
[ 97.938349][ T621] R13: 00000000690debdc R14: 0000000000499600 R15: 0000000000000000
[ 97.938357][ T621]
[ 97.938358][ T621]
[ 97.954364][ T621] Allocated by task 308:
[ 97.954608][ T621] kasan_save_stack+0x24/0x40
[ 97.954927][ T621] kasan_save_track+0x14/0x30
[ 97.955101][ T621] __kasan_kmalloc+0x7b/0x90
[ 97.955284][ T621] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 97.955491][ T621] alloc_netdev_mqs+0x7d/0x1370
[ 97.955792][ T621] rtnl_create_link+0xa9e/0xe20
[ 97.955967][ T621] rtnl_newlink_create+0x203/0x770
[ 97.956139][ T621] __rtnl_newlink+0x231/0xa30
[ 97.956321][ T621] rtnl_newlink+0x693/0xa60
[ 97.956603][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.956916][ T621] netlink_rcv_skb+0x121/0x340
[ 97.957090][ T621] netlink_unicast+0x4aa/0x780
[ 97.957294][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.957582][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.957774][ T621] ___sys_sendmsg+0xed/0x170
[ 97.957955][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.958129][ T621] do_syscall_64+0xc1/0xfd0
[ 97.958315][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.958544][ T621]
[ 97.958654][ T621] Freed by task 621:
[ 97.958814][ T621] kasan_save_stack+0x24/0x40
[ 97.958992][ T621] kasan_save_track+0x14/0x30
[ 97.959162][ T621] __kasan_save_free_info+0x3b/0x60
[ 97.959342][ T621] __kasan_slab_free+0x3f/0x60
[ 97.959515][ T621] kfree+0x21d/0x540
[ 97.959661][ T621] device_release+0x9c/0x210
[ 97.960053][ T621] kobject_cleanup+0xfe/0x360
[ 97.960246][ T621] netdev_run_todo+0x81f/0xc60
[ 97.960430][ T621] rtnl_dellink+0x350/0xa30
[ 97.960616][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.960823][ T621] netlink_rcv_skb+0x121/0x340
[ 97.961117][ T621] netlink_unicast+0x4aa/0x780
[ 97.961314][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.961508][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.961709][ T621] ___sys_sendmsg+0xed/0x170
[ 97.961907][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.962082][ T621] do_syscall_64+0xc1/0xfd0
[ 97.962286][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.962738][ T621]
[ 97.962844][ T621] Last potentially related work creation:
[ 97.963016][ T621] kasan_save_stack+0x24/0x40
[ 97.963205][ T621] kasan_record_aux_stack+0x8c/0xa0
[ 97.963399][ T621] insert_work+0x34/0x230
[ 97.963538][ T621] __queue_work+0x5fd/0xab0
[ 97.963741][ T621] queue_work_on+0x84/0x90
[ 97.964030][ T621] br_multicast_dev_del+0xeb/0x240 [bridge]
[ 97.964296][ T621] br_dev_uninit+0x19/0x40 [bridge]
[ 97.964497][ T621] unregister_netdevice_many_notify+0xa80/0x1b30
[ 97.964720][ T621] rtnl_dellink+0x344/0xa30
[ 97.964947][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.965120][ T621] netlink_rcv_skb+0x121/0x340
[ 97.965310][ T621] netlink_unicast+0x4aa/0x780
[ 97.965502][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.965769][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.966062][ T621] ___sys_sendmsg+0xed/0x170
[ 97.966247][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.966440][ T621] do_syscall_64+0xc1/0xfd0
[ 97.966618][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.966951][ T621]
[ 97.967041][ T621] Second to last potentially related work creation:
[ 97.967282][ T621] kasan_save_stack+0x24/0x40
[ 97.967476][ T621] kasan_record_aux_stack+0x8c/0xa0
[ 97.967756][ T621] insert_work+0x34/0x230
[ 97.967907][ T621] __queue_work+0x5fd/0xab0
[ 97.968184][ T621] queue_work_on+0x84/0x90
[ 97.968373][ T621] br_multicast_del_mdb_entry+0x95d/0xfe0 [bridge]
[ 97.968633][ T621] br_multicast_dev_del+0xeb/0x240 [bridge]
[ 97.968885][ T621] br_dev_uninit+0x19/0x40 [bridge]
[ 97.969200][ T621] unregister_netdevice_many_notify+0xa80/0x1b30
[ 97.969446][ T621] rtnl_dellink+0x344/0xa30
[ 97.969621][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.969798][ T621] netlink_rcv_skb+0x121/0x340
[ 97.969986][ T621] netlink_unicast+0x4aa/0x780
[ 97.970282][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.970480][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.970657][ T621] ___sys_sendmsg+0xed/0x170
[ 97.970835][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.971039][ T621] do_syscall_64+0xc1/0xfd0
[ 97.971238][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.971472][ T621]
[ 97.971562][ T621] The buggy address belongs to the object at ffff888009e32000
[ 97.971562][ T621] which belongs to the cache kmalloc-8k of size 8192
[ 97.972101][ T621] The buggy address is located 1708 bytes inside of
[ 97.972101][ T621] freed 8192-byte region [ffff888009e32000, ffff888009e34000)
[ 97.972550][ T621]
[ 97.972636][ T621] The buggy address belongs to the physical page:
[ 97.972946][ T621] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9e30
[ 97.973305][ T621] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 97.973624][ T621] flags: 0x80000000000040(head|node=0|zone=1)
[ 97.973866][ T621] page_type: f5(slab)
[ 97.974010][ T621] raw: 0080000000000040 ffff8880010438c0 ffffea0000139010 ffffea00002bae10
[ 97.974504][ T621] raw: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000
[ 97.974895][ T621] head: 0080000000000040 ffff8880010438c0 ffffea0000139010 ffffea00002bae10
[ 97.975492][ T621] head: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000
[ 97.975817][ T621] head: 0080000000000003 ffffea0000278c01 00000000ffffffff 00000000ffffffff
[ 97.976125][ T621] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 97.976479][ T621] page dumped because: kasan: bad access detected
[ 97.976809][ T621]
[ 97.976896][ T621] Memory state around the buggy address:
[ 97.977065][ T621] ffff888009e32580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 97.977371][ T621] ffff888009e32600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 97.977632][ T621] >ffff888009e32680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 97.978110][ T621] ^
[ 97.978294][ T621] ffff888009e32700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 97.978556][ T621] ffff888009e32780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 97.978816][ T621] ==================================================================
[ 97.979154][ T621] Disabling lock debugging due to kernel taint
[ 97.979465][ T621] ------------[ cut here ]------------
[ 97.979661][ T621] refcount_t: underflow; use-after-free.
[ 97.979899][ T621] WARNING: CPU: 2 PID: 621 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 97.980637][ T621] Modules linked in: act_mirred cls_flower sch_ingress bridge stp llc 8021q vrf veth
[ 97.981026][ T621] CPU: 2 UID: 0 PID: 621 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 97.981424][ T621] Tainted: [B]=BAD_PAGE
[ 97.981592][ T621] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.981846][ T621] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 97.982119][ T621] Code: 7d 93 02 80 fb 01 0f 87 bb 99 d9 fe 83 e3 01 0f 85 51 ff ff ff c6 05 a8 7d 93 02 01 90 48 c7 c7 60 8d 65 98 e8 32 bf 18 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 b0 63 a1 ff e9 ba fe ff ff
[ 97.982800][ T621] RSP: 0018:ffffc900007171f0 EFLAGS: 00010286
[ 97.983047][ T621] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 97.983343][ T621] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 97.983667][ T621] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff31fe134
[ 97.983954][ T621] R10: 0000000000000003 R11: ffffc90000716d80 R12: 0000000000000001
[ 97.984381][ T621] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 97.984699][ T621] FS: 00007f75ba4dc800(0000) GS:ffff88809bef2000(0000) knlGS:0000000000000000
[ 97.985169][ T621] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 97.985427][ T621] CR2: 0000557c61cafdec CR3: 000000000966b006 CR4: 0000000000772ef0
[ 97.985722][ T621] PKRU: 55555554
[ 97.985875][ T621] Call Trace:
[ 97.986129][ T621]
[ 97.986269][ T621] netdev_run_todo+0x5f0/0xc60
[ 97.986503][ T621] ? dev_ingress_queue_create+0x190/0x190
[ 97.986712][ T621] ? generic_xdp_install+0x410/0x410
[ 97.987000][ T621] ? kernfs_put.part.0+0x12d/0x480
[ 97.987249][ T621] ? unregister_netdevice_many+0x20/0x20
[ 97.987454][ T621] ? br_dev_delete+0x115/0x1a0 [bridge]
[ 97.987677][ T621] rtnl_dellink+0x350/0xa30
[ 97.987966][ T621] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 97.988306][ T621] ? find_held_lock+0x2b/0x80
[ 97.988578][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.988832][ T621] ? find_held_lock+0x2b/0x80
[ 97.989099][ T621] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 97.989438][ T621] ? __lock_release+0x5d/0x170
[ 97.989712][ T621] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 97.990016][ T621] rtnetlink_rcv_msg+0x709/0xc00
[ 97.990310][ T621] ? rtnl_port_fill+0x850/0x850
[ 97.990575][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.990845][ T621] netlink_rcv_skb+0x121/0x340
[ 97.991108][ T621] ? rtnl_port_fill+0x850/0x850
[ 97.991406][ T621] ? netlink_ack+0xdd0/0xdd0
[ 97.991672][ T621] ? netlink_deliver_tap+0x13e/0x340
[ 97.991936][ T621] ? netlink_deliver_tap+0xc3/0x340
[ 97.992217][ T621] netlink_unicast+0x4aa/0x780
[ 97.992486][ T621] ? netlink_attachskb+0x810/0x810
[ 97.992744][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.993017][ T621] netlink_sendmsg+0x714/0xbd0
[ 97.993308][ T621] ? netlink_unicast+0x780/0x780
[ 97.993577][ T621] ? __import_iovec+0x230/0x3b0
[ 97.993835][ T621] ? netlink_unicast+0x780/0x780
[ 97.994094][ T621] ____sys_sendmsg+0x3dd/0x890
[ 97.994391][ T621] ? get_timestamp.constprop.0+0x380/0x380
[ 97.994706][ T621] ? __copy_msghdr+0x3c0/0x3c0
[ 97.994988][ T621] ___sys_sendmsg+0xed/0x170
[ 97.995283][ T621] ? kasan_record_aux_stack+0x8c/0xa0
[ 97.995541][ T621] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 97.995855][ T621] ? copy_msghdr_from_user+0x110/0x110
[ 97.996111][ T621] ? find_held_lock+0x2b/0x80
[ 97.996410][ T621] ? __lock_acquire+0x449/0x7e0
[ 97.996672][ T621] ? find_held_lock+0x2b/0x80
[ 97.996956][ T621] ? __virt_addr_valid+0x22a/0x450
[ 97.997248][ T621] ? __lock_release+0x5d/0x170
[ 97.997509][ T621] __sys_sendmsg+0x10b/0x1a0
[ 97.997765][ T621] ? __call_rcu_common.constprop.0+0x318/0x630
[ 97.998060][ T621] ? __sys_sendmsg_sock+0x20/0x20
[ 97.998359][ T621] ? rcu_is_watching+0x12/0xb0
[ 97.998615][ T621] do_syscall_64+0xc1/0xfd0
[ 97.998878][ T621] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 97.999209][ T621] RIP: 0033:0x7f75ba6aa1d7
[ 97.999492][ T621] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 98.000221][ T621] RSP: 002b:00007ffeab8f89e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 98.000584][ T621] RAX: ffffffffffffffda RBX: 00007ffeab8f9110 RCX: 00007f75ba6aa1d7
[ 98.000925][ T621] RDX: 0000000000000000 RSI: 00007ffeab8f8a50 RDI: 0000000000000005
[ 98.001296][ T621] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 98.001639][ T621] R10: 00007f75ba5a6f60 R11: 0000000000000246 R12: 0000000000000002
[ 98.001984][ T621] R13: 00000000690debdc R14: 0000000000499600 R15: 0000000000000000
[ 98.002377][ T621]
[ 98.002598][ T621] irq event stamp: 52453
[ 98.002811][ T621] hardirqs last enabled at (52453): [] irqentry_exit+0x3b/0x80
[ 98.003238][ T621] hardirqs last disabled at (52452): [] handle_softirqs+0x47f/0x610
[ 98.003641][ T621] softirqs last enabled at (50886): [] handle_softirqs+0x352/0x610
[ 98.004020][ T621] softirqs last disabled at (50879): [] irq_exit_rcu+0xab/0x100
[ 98.004486][ T621] ---[ end trace 0000000000000000 ]---