[ 24.346191][ T357] 8021q: 802.1Q VLAN Support v1.8
[ 24.976841][ T363] gre: GRE over IPv4 demultiplexer driver
[ 25.036611][ T363] ip6_gre: GRE over IPv6 tunneling driver
[ 37.377148][ T448] GACT probability NOT on
[ 61.145942][ T661] ==================================================================
[ 61.146264][ T661] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 61.146567][ T661] Read of size 1 at addr ffff88800abb46ac by task ip/661
[ 61.146832][ T661]
[ 61.146936][ T661] CPU: 0 UID: 0 PID: 661 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 61.146943][ T661] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.146948][ T661] Call Trace:
[ 61.146951][ T661]
[ 61.146953][ T661] dump_stack_lvl+0x82/0xc0
[ 61.146963][ T661] print_address_description.constprop.0+0x2c/0x3a0
[ 61.146976][ T661] ? kobject_put+0xbb/0xd0
[ 61.146980][ T661] print_report+0xb4/0x270
[ 61.146983][ T661] ? kobject_put+0xbb/0xd0
[ 61.146986][ T661] ? kasan_addr_to_slab+0x21/0x70
[ 61.146990][ T661] ? kobject_put+0xbb/0xd0
[ 61.146993][ T661] kasan_report+0xca/0x100
[ 61.146996][ T661] ? kobject_put+0xbb/0xd0
[ 61.147002][ T661] kobject_put+0xbb/0xd0
[ 61.147005][ T661] netdev_run_todo+0x5f0/0xc60
[ 61.147014][ T661] ? dev_ingress_queue_create+0x190/0x190
[ 61.147017][ T661] ? generic_xdp_install+0x410/0x410
[ 61.147020][ T661] ? unregister_netdevice_many+0x20/0x20
[ 61.147025][ T661] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 61.147035][ T661] rtnl_dellink+0x350/0xa30
[ 61.147042][ T661] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 61.147061][ T661] ? find_held_lock+0x2b/0x80
[ 61.147073][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.147080][ T661] ? find_held_lock+0x2b/0x80
[ 61.147084][ T661] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 61.147087][ T661] ? __lock_release+0x5d/0x170
[ 61.147091][ T661] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 61.147095][ T661] rtnetlink_rcv_msg+0x709/0xc00
[ 61.147098][ T661] ? rtnl_port_fill+0x850/0x850
[ 61.147101][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.147109][ T661] netlink_rcv_skb+0x121/0x340
[ 61.147116][ T661] ? rtnl_port_fill+0x850/0x850
[ 61.147119][ T661] ? netlink_ack+0xdd0/0xdd0
[ 61.147126][ T661] ? netlink_deliver_tap+0x13e/0x340
[ 61.147129][ T661] ? netlink_deliver_tap+0xc3/0x340
[ 61.147133][ T661] netlink_unicast+0x4aa/0x780
[ 61.147137][ T661] ? netlink_attachskb+0x810/0x810
[ 61.147141][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.147146][ T661] netlink_sendmsg+0x714/0xbd0
[ 61.147151][ T661] ? netlink_unicast+0x780/0x780
[ 61.147154][ T661] ? __import_iovec+0x230/0x3b0
[ 61.147163][ T661] ? netlink_unicast+0x780/0x780
[ 61.147167][ T661] ____sys_sendmsg+0x3dd/0x890
[ 61.147175][ T661] ? get_timestamp.constprop.0+0x380/0x380
[ 61.147178][ T661] ? __copy_msghdr+0x3c0/0x3c0
[ 61.147187][ T661] ___sys_sendmsg+0xed/0x170
[ 61.147191][ T661] ? kasan_record_aux_stack+0x8c/0xa0
[ 61.147194][ T661] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 61.147205][ T661] ? copy_msghdr_from_user+0x110/0x110
[ 61.147210][ T661] ? find_held_lock+0x2b/0x80
[ 61.147214][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.147219][ T661] ? find_held_lock+0x2b/0x80
[ 61.147223][ T661] ? __virt_addr_valid+0x22a/0x450
[ 61.147231][ T661] ? __lock_release+0x5d/0x170
[ 61.147238][ T661] __sys_sendmsg+0x10b/0x1a0
[ 61.147241][ T661] ? __call_rcu_common.constprop.0+0x318/0x630
[ 61.147245][ T661] ? __sys_sendmsg_sock+0x20/0x20
[ 61.147253][ T661] ? rcu_is_watching+0x12/0xb0
[ 61.147257][ T661] do_syscall_64+0xc1/0xfd0
[ 61.147265][ T661] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 61.147269][ T661] RIP: 0033:0x7f2d104c01d7
[ 61.147275][ T661] 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
[ 61.147278][ T661] RSP: 002b:00007ffc0d9c06b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 61.147284][ T661] RAX: ffffffffffffffda RBX: 00007ffc0d9c0de0 RCX: 00007f2d104c01d7
[ 61.147286][ T661] RDX: 0000000000000000 RSI: 00007ffc0d9c0720 RDI: 0000000000000005
[ 61.147288][ T661] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 61.147290][ T661] R10: 00007f2d103bcf60 R11: 0000000000000246 R12: 0000000000000002
[ 61.147292][ T661] R13: 00000000690df807 R14: 0000000000499600 R15: 0000000000000000
[ 61.147298][ T661]
[ 61.147300][ T661]
[ 61.160369][ T661] Allocated by task 401:
[ 61.160517][ T661] kasan_save_stack+0x24/0x40
[ 61.160704][ T661] kasan_save_track+0x14/0x30
[ 61.160872][ T661] __kasan_kmalloc+0x7b/0x90
[ 61.161042][ T661] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 61.161232][ T661] alloc_netdev_mqs+0x7d/0x1370
[ 61.161527][ T661] rtnl_create_link+0xa9e/0xe20
[ 61.161717][ T661] rtnl_newlink_create+0x203/0x770
[ 61.161894][ T661] __rtnl_newlink+0x231/0xa30
[ 61.162161][ T661] rtnl_newlink+0x693/0xa60
[ 61.162333][ T661] rtnetlink_rcv_msg+0x709/0xc00
[ 61.162513][ T661] netlink_rcv_skb+0x121/0x340
[ 61.162701][ T661] netlink_unicast+0x4aa/0x780
[ 61.162895][ T661] netlink_sendmsg+0x714/0xbd0
[ 61.163206][ T661] ____sys_sendmsg+0x3dd/0x890
[ 61.163416][ T661] ___sys_sendmsg+0xed/0x170
[ 61.163713][ T661] __sys_sendmsg+0x10b/0x1a0
[ 61.164197][ T661] do_syscall_64+0xc1/0xfd0
[ 61.164466][ T661] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 61.164830][ T661]
[ 61.164971][ T661] Freed by task 661:
[ 61.165169][ T661] kasan_save_stack+0x24/0x40
[ 61.165351][ T661] kasan_save_track+0x14/0x30
[ 61.165522][ T661] __kasan_save_free_info+0x3b/0x60
[ 61.165702][ T661] __kasan_slab_free+0x3f/0x60
[ 61.165898][ T661] kfree+0x21d/0x540
[ 61.166038][ T661] device_release+0x9c/0x210
[ 61.166322][ T661] kobject_cleanup+0xfe/0x360
[ 61.166541][ T661] netdev_run_todo+0x81f/0xc60
[ 61.166812][ T661] rtnl_dellink+0x350/0xa30
[ 61.166986][ T661] rtnetlink_rcv_msg+0x709/0xc00
[ 61.167157][ T661] netlink_rcv_skb+0x121/0x340
[ 61.167325][ T661] netlink_unicast+0x4aa/0x780
[ 61.167500][ T661] netlink_sendmsg+0x714/0xbd0
[ 61.167675][ T661] ____sys_sendmsg+0x3dd/0x890
[ 61.167843][ T661] ___sys_sendmsg+0xed/0x170
[ 61.168013][ T661] __sys_sendmsg+0x10b/0x1a0
[ 61.168178][ T661] do_syscall_64+0xc1/0xfd0
[ 61.168346][ T661] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 61.168558][ T661]
[ 61.168644][ T661] The buggy address belongs to the object at ffff88800abb4000
[ 61.168644][ T661] which belongs to the cache kmalloc-4k of size 4096
[ 61.169062][ T661] The buggy address is located 1708 bytes inside of
[ 61.169062][ T661] freed 4096-byte region [ffff88800abb4000, ffff88800abb5000)
[ 61.169655][ T661]
[ 61.169747][ T661] The buggy address belongs to the physical page:
[ 61.169959][ T661] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xabb0
[ 61.170361][ T661] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 61.170614][ T661] flags: 0x80000000000040(head|node=0|zone=1)
[ 61.170936][ T661] page_type: f5(slab)
[ 61.171075][ T661] raw: 0080000000000040 ffff888001043700 ffffea00002a4c10 ffffea0000098e10
[ 61.171370][ T661] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 61.171769][ T661] head: 0080000000000040 ffff888001043700 ffffea00002a4c10 ffffea0000098e10
[ 61.172070][ T661] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 61.172365][ T661] head: 0080000000000003 ffffea00002aec01 00000000ffffffff 00000000ffffffff
[ 61.172655][ T661] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 61.172975][ T661] page dumped because: kasan: bad access detected
[ 61.173286][ T661]
[ 61.173371][ T661] Memory state around the buggy address:
[ 61.173536][ T661] ffff88800abb4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 61.173779][ T661] ffff88800abb4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 61.174112][ T661] >ffff88800abb4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 61.174391][ T661] ^
[ 61.174553][ T661] ffff88800abb4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 61.174886][ T661] ffff88800abb4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 61.175125][ T661] ==================================================================
[ 61.175546][ T661] Disabling lock debugging due to kernel taint
[ 61.175833][ T661] ------------[ cut here ]------------
[ 61.175999][ T661] refcount_t: underflow; use-after-free.
[ 61.176212][ T661] WARNING: CPU: 3 PID: 661 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 61.176545][ T661] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
[ 61.176925][ T661] CPU: 3 UID: 0 PID: 661 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 61.177297][ T661] Tainted: [B]=BAD_PAGE
[ 61.177438][ T661] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.177667][ T661] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 61.177901][ T661] 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 b4 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
[ 61.178546][ T661] RSP: 0018:ffffc9000102f1f0 EFLAGS: 00010286
[ 61.178772][ T661] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 61.179041][ T661] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 61.179305][ T661] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff69fe134
[ 61.179587][ T661] R10: 0000000000000003 R11: ffffc9000102ed80 R12: 0000000000000001
[ 61.179851][ T661] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 61.180123][ T661] FS: 00007f2d102f2800(0000) GS:ffff88807a372000(0000) knlGS:0000000000000000
[ 61.180445][ T661] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 61.180683][ T661] CR2: 00007f445a538000 CR3: 000000000ac38002 CR4: 0000000000772ef0
[ 61.180946][ T661] PKRU: 55555554
[ 61.181092][ T661] Call Trace:
[ 61.181232][ T661]
[ 61.181324][ T661] netdev_run_todo+0x5f0/0xc60
[ 61.181526][ T661] ? dev_ingress_queue_create+0x190/0x190
[ 61.181801][ T661] ? generic_xdp_install+0x410/0x410
[ 61.181982][ T661] ? unregister_netdevice_many+0x20/0x20
[ 61.182266][ T661] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 61.182451][ T661] rtnl_dellink+0x350/0xa30
[ 61.182645][ T661] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 61.182997][ T661] ? find_held_lock+0x2b/0x80
[ 61.183190][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.183384][ T661] ? find_held_lock+0x2b/0x80
[ 61.183574][ T661] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 61.183935][ T661] ? __lock_release+0x5d/0x170
[ 61.184127][ T661] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 61.184360][ T661] rtnetlink_rcv_msg+0x709/0xc00
[ 61.184542][ T661] ? rtnl_port_fill+0x850/0x850
[ 61.184815][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.184993][ T661] netlink_rcv_skb+0x121/0x340
[ 61.185180][ T661] ? rtnl_port_fill+0x850/0x850
[ 61.185362][ T661] ? netlink_ack+0xdd0/0xdd0
[ 61.185645][ T661] ? netlink_deliver_tap+0x13e/0x340
[ 61.185821][ T661] ? netlink_deliver_tap+0xc3/0x340
[ 61.185993][ T661] netlink_unicast+0x4aa/0x780
[ 61.186179][ T661] ? netlink_attachskb+0x810/0x810
[ 61.186458][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.186651][ T661] netlink_sendmsg+0x714/0xbd0
[ 61.186830][ T661] ? netlink_unicast+0x780/0x780
[ 61.187005][ T661] ? __import_iovec+0x230/0x3b0
[ 61.187294][ T661] ? netlink_unicast+0x780/0x780
[ 61.187479][ T661] ____sys_sendmsg+0x3dd/0x890
[ 61.187667][ T661] ? get_timestamp.constprop.0+0x380/0x380
[ 61.187881][ T661] ? __copy_msghdr+0x3c0/0x3c0
[ 61.188164][ T661] ___sys_sendmsg+0xed/0x170
[ 61.188335][ T661] ? kasan_record_aux_stack+0x8c/0xa0
[ 61.188537][ T661] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 61.188858][ T661] ? copy_msghdr_from_user+0x110/0x110
[ 61.189042][ T661] ? find_held_lock+0x2b/0x80
[ 61.189227][ T661] ? __lock_acquire+0x449/0x7e0
[ 61.189415][ T661] ? find_held_lock+0x2b/0x80
[ 61.189705][ T661] ? __virt_addr_valid+0x22a/0x450
[ 61.189884][ T661] ? __lock_release+0x5d/0x170
[ 61.190083][ T661] __sys_sendmsg+0x10b/0x1a0
[ 61.190261][ T661] ? __call_rcu_common.constprop.0+0x318/0x630
[ 61.190605][ T661] ? __sys_sendmsg_sock+0x20/0x20
[ 61.190788][ T661] ? rcu_is_watching+0x12/0xb0
[ 61.190974][ T661] do_syscall_64+0xc1/0xfd0
[ 61.191168][ T661] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 61.191496][ T661] RIP: 0033:0x7f2d104c01d7
[ 61.191714][ T661] 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
[ 61.192459][ T661] RSP: 002b:00007ffc0d9c06b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 61.192741][ T661] RAX: ffffffffffffffda RBX: 00007ffc0d9c0de0 RCX: 00007f2d104c01d7
[ 61.193132][ T661] RDX: 0000000000000000 RSI: 00007ffc0d9c0720 RDI: 0000000000000005
[ 61.193400][ T661] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 61.193679][ T661] R10: 00007f2d103bcf60 R11: 0000000000000246 R12: 0000000000000002
[ 61.194045][ T661] R13: 00000000690df807 R14: 0000000000499600 R15: 0000000000000000
[ 61.194319][ T661]
[ 61.194466][ T661] irq event stamp: 45217
[ 61.194611][ T661] hardirqs last enabled at (45217): [] finish_task_switch.isra.0+0x245/0x960
[ 61.195070][ T661] hardirqs last disabled at (45216): [] __schedule+0x94a/0x1b10
[ 61.195396][ T661] softirqs last enabled at (45130): [] handle_softirqs+0x352/0x610
[ 61.195820][ T661] softirqs last disabled at (45121): [] irq_exit_rcu+0xab/0x100
[ 61.196131][ T661] ---[ end trace 0000000000000000 ]---