[ 20.311983][ T308] 8021q: 802.1Q VLAN Support v1.8
[ 21.493100][ T319] gre: GRE over IPv4 demultiplexer driver
[ 21.535649][ T319] ip_gre: GRE over IPv4 tunneling driver
[ 21.942764][ T325] ip (325) used greatest stack depth: 23328 bytes left
[ 28.860966][ T385] GACT probability NOT on
[ 113.548590][ T660] ==================================================================
[ 113.548919][ T660] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 113.549198][ T660] Read of size 1 at addr ffff88800890c6ac by task ip/660
[ 113.549405][ T660]
[ 113.549545][ T660] CPU: 3 UID: 0 PID: 660 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 113.549550][ T660] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.549553][ T660] Call Trace:
[ 113.549555][ T660]
[ 113.549557][ T660] dump_stack_lvl+0x82/0xc0
[ 113.549563][ T660] print_address_description.constprop.0+0x2c/0x3a0
[ 113.549569][ T660] ? kobject_put+0xbb/0xd0
[ 113.549574][ T660] print_report+0xb4/0x270
[ 113.549577][ T660] ? kobject_put+0xbb/0xd0
[ 113.549580][ T660] ? kasan_addr_to_slab+0x21/0x70
[ 113.549583][ T660] ? kobject_put+0xbb/0xd0
[ 113.549586][ T660] kasan_report+0xca/0x100
[ 113.549589][ T660] ? kobject_put+0xbb/0xd0
[ 113.549595][ T660] kobject_put+0xbb/0xd0
[ 113.549598][ T660] netdev_run_todo+0x5f0/0xc60
[ 113.549603][ T660] ? dev_ingress_queue_create+0x190/0x190
[ 113.549607][ T660] ? generic_xdp_install+0x410/0x410
[ 113.549610][ T660] ? vrf_dellink+0xff/0x150 [vrf]
[ 113.549617][ T660] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 113.549621][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.549629][ T660] rtnl_dellink+0x350/0xa30
[ 113.549634][ T660] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.549653][ T660] ? find_held_lock+0x2b/0x80
[ 113.549658][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.549663][ T660] ? find_held_lock+0x2b/0x80
[ 113.549667][ T660] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 113.549669][ T660] ? __lock_release+0x5d/0x170
[ 113.549674][ T660] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.549677][ T660] rtnetlink_rcv_msg+0x709/0xc00
[ 113.549681][ T660] ? rtnl_port_fill+0x850/0x850
[ 113.549683][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.549690][ T660] netlink_rcv_skb+0x121/0x340
[ 113.549694][ T660] ? rtnl_port_fill+0x850/0x850
[ 113.549698][ T660] ? netlink_ack+0xdd0/0xdd0
[ 113.549708][ T660] ? netlink_deliver_tap+0x13e/0x340
[ 113.549712][ T660] ? netlink_deliver_tap+0xc3/0x340
[ 113.549718][ T660] netlink_unicast+0x4aa/0x780
[ 113.549725][ T660] ? netlink_attachskb+0x810/0x810
[ 113.549730][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.549740][ T660] netlink_sendmsg+0x714/0xbd0
[ 113.549748][ T660] ? netlink_unicast+0x780/0x780
[ 113.549752][ T660] ? __import_iovec+0x230/0x3b0
[ 113.549758][ T660] ? netlink_unicast+0x780/0x780
[ 113.549762][ T660] ____sys_sendmsg+0x3dd/0x890
[ 113.549767][ T660] ? get_timestamp.constprop.0+0x380/0x380
[ 113.549770][ T660] ? __copy_msghdr+0x3c0/0x3c0
[ 113.549777][ T660] ___sys_sendmsg+0xed/0x170
[ 113.549780][ T660] ? kasan_record_aux_stack+0x8c/0xa0
[ 113.549783][ T660] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 113.549788][ T660] ? copy_msghdr_from_user+0x110/0x110
[ 113.549792][ T660] ? find_held_lock+0x2b/0x80
[ 113.549797][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.549802][ T660] ? find_held_lock+0x2b/0x80
[ 113.549806][ T660] ? __virt_addr_valid+0x22a/0x450
[ 113.549810][ T660] ? __lock_release+0x5d/0x170
[ 113.549817][ T660] __sys_sendmsg+0x10b/0x1a0
[ 113.549820][ T660] ? __call_rcu_common.constprop.0+0x318/0x630
[ 113.549823][ T660] ? __sys_sendmsg_sock+0x20/0x20
[ 113.549831][ T660] ? rcu_is_watching+0x12/0xb0
[ 113.549835][ T660] do_syscall_64+0xc1/0xfd0
[ 113.549839][ T660] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.549843][ T660] RIP: 0033:0x7f837ba421d7
[ 113.549847][ T660] 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
[ 113.549850][ T660] RSP: 002b:00007fff87d89a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 113.549854][ T660] RAX: ffffffffffffffda RBX: 00007fff87d8a1b0 RCX: 00007f837ba421d7
[ 113.549856][ T660] RDX: 0000000000000000 RSI: 00007fff87d89af0 RDI: 0000000000000005
[ 113.549858][ T660] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 113.549860][ T660] R10: 00007f837b93ef60 R11: 0000000000000246 R12: 0000000000000002
[ 113.549861][ T660] R13: 00000000690df5af R14: 0000000000499600 R15: 0000000000000000
[ 113.549868][ T660]
[ 113.549869][ T660]
[ 113.564312][ T660] Allocated by task 388:
[ 113.564473][ T660] kasan_save_stack+0x24/0x40
[ 113.564682][ T660] kasan_save_track+0x14/0x30
[ 113.565025][ T660] __kasan_kmalloc+0x7b/0x90
[ 113.565218][ T660] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 113.565416][ T660] alloc_netdev_mqs+0x7d/0x1370
[ 113.565654][ T660] rtnl_create_link+0xa9e/0xe20
[ 113.565890][ T660] rtnl_newlink_create+0x203/0x770
[ 113.566177][ T660] __rtnl_newlink+0x231/0xa30
[ 113.566449][ T660] rtnl_newlink+0x693/0xa60
[ 113.566720][ T660] rtnetlink_rcv_msg+0x709/0xc00
[ 113.567001][ T660] netlink_rcv_skb+0x121/0x340
[ 113.567191][ T660] netlink_unicast+0x4aa/0x780
[ 113.567352][ T660] netlink_sendmsg+0x714/0xbd0
[ 113.567512][ T660] ____sys_sendmsg+0x3dd/0x890
[ 113.567797][ T660] ___sys_sendmsg+0xed/0x170
[ 113.568007][ T660] __sys_sendmsg+0x10b/0x1a0
[ 113.568174][ T660] do_syscall_64+0xc1/0xfd0
[ 113.568386][ T660] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.568800][ T660]
[ 113.568936][ T660] Freed by task 660:
[ 113.569253][ T660] kasan_save_stack+0x24/0x40
[ 113.569570][ T660] kasan_save_track+0x14/0x30
[ 113.569810][ T660] __kasan_save_free_info+0x3b/0x60
[ 113.570130][ T660] __kasan_slab_free+0x3f/0x60
[ 113.570343][ T660] kfree+0x21d/0x540
[ 113.570470][ T660] device_release+0x9c/0x210
[ 113.570695][ T660] kobject_cleanup+0xfe/0x360
[ 113.570961][ T660] netdev_run_todo+0x81f/0xc60
[ 113.571123][ T660] rtnl_dellink+0x350/0xa30
[ 113.571293][ T660] rtnetlink_rcv_msg+0x709/0xc00
[ 113.571488][ T660] netlink_rcv_skb+0x121/0x340
[ 113.571699][ T660] netlink_unicast+0x4aa/0x780
[ 113.571889][ T660] netlink_sendmsg+0x714/0xbd0
[ 113.572096][ T660] ____sys_sendmsg+0x3dd/0x890
[ 113.572333][ T660] ___sys_sendmsg+0xed/0x170
[ 113.572897][ T660] __sys_sendmsg+0x10b/0x1a0
[ 113.573175][ T660] do_syscall_64+0xc1/0xfd0
[ 113.573451][ T660] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.573791][ T660]
[ 113.574103][ T660] The buggy address belongs to the object at ffff88800890c000
[ 113.574103][ T660] which belongs to the cache kmalloc-4k of size 4096
[ 113.574925][ T660] The buggy address is located 1708 bytes inside of
[ 113.574925][ T660] freed 4096-byte region [ffff88800890c000, ffff88800890d000)
[ 113.575570][ T660]
[ 113.575678][ T660] The buggy address belongs to the physical page:
[ 113.576006][ T660] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8908
[ 113.576403][ T660] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 113.576652][ T660] flags: 0x80000000000040(head|node=0|zone=1)
[ 113.576881][ T660] page_type: f5(slab)
[ 113.577106][ T660] raw: 0080000000000040 ffff888001043700 ffffea0000151a10 ffffea000032b610
[ 113.577435][ T660] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 113.577832][ T660] head: 0080000000000040 ffff888001043700 ffffea0000151a10 ffffea000032b610
[ 113.578266][ T660] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 113.578604][ T660] head: 0080000000000003 ffffea0000224201 00000000ffffffff 00000000ffffffff
[ 113.578944][ T660] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 113.579229][ T660] page dumped because: kasan: bad access detected
[ 113.579618][ T660]
[ 113.579821][ T660] Memory state around the buggy address:
[ 113.579986][ T660] ffff88800890c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.580221][ T660] ffff88800890c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.580452][ T660] >ffff88800890c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.580811][ T660] ^
[ 113.581035][ T660] ffff88800890c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.581429][ T660] ffff88800890c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.581712][ T660] ==================================================================
[ 113.582040][ T660] Disabling lock debugging due to kernel taint
[ 113.582300][ T660] ------------[ cut here ]------------
[ 113.582462][ T660] refcount_t: underflow; use-after-free.
[ 113.582645][ T660] WARNING: CPU: 1 PID: 660 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 113.583025][ T660] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth
[ 113.583326][ T660] CPU: 1 UID: 0 PID: 660 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 113.583646][ T660] Tainted: [B]=BAD_PAGE
[ 113.583790][ T660] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.583988][ T660] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 113.584197][ T660] 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 c5 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
[ 113.584780][ T660] RSP: 0018:ffffc900010df1f0 EFLAGS: 00010286
[ 113.584981][ T660] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 113.585311][ T660] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 113.585548][ T660] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff6abe134
[ 113.585812][ T660] R10: 0000000000000003 R11: ffffc900010ded80 R12: 0000000000000001
[ 113.586147][ T660] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 113.586382][ T660] FS: 00007f837b874800(0000) GS:ffff88807f872000(0000) knlGS:0000000000000000
[ 113.586772][ T660] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 113.586972][ T660] CR2: 00000000004061e9 CR3: 0000000008200001 CR4: 0000000000772ef0
[ 113.587211][ T660] PKRU: 55555554
[ 113.587334][ T660] Call Trace:
[ 113.587545][ T660]
[ 113.587626][ T660] netdev_run_todo+0x5f0/0xc60
[ 113.587813][ T660] ? dev_ingress_queue_create+0x190/0x190
[ 113.587989][ T660] ? generic_xdp_install+0x410/0x410
[ 113.588254][ T660] ? vrf_dellink+0xff/0x150 [vrf]
[ 113.588422][ T660] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 113.588626][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.588811][ T660] rtnl_dellink+0x350/0xa30
[ 113.589074][ T660] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.589281][ T660] ? find_held_lock+0x2b/0x80
[ 113.589452][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.589619][ T660] ? find_held_lock+0x2b/0x80
[ 113.589877][ T660] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 113.590039][ T660] ? __lock_release+0x5d/0x170
[ 113.590199][ T660] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.590394][ T660] rtnetlink_rcv_msg+0x709/0xc00
[ 113.590670][ T660] ? rtnl_port_fill+0x850/0x850
[ 113.590841][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.591002][ T660] netlink_rcv_skb+0x121/0x340
[ 113.591163][ T660] ? rtnl_port_fill+0x850/0x850
[ 113.591423][ T660] ? netlink_ack+0xdd0/0xdd0
[ 113.591599][ T660] ? netlink_deliver_tap+0x13e/0x340
[ 113.591767][ T660] ? netlink_deliver_tap+0xc3/0x340
[ 113.591940][ T660] netlink_unicast+0x4aa/0x780
[ 113.592212][ T660] ? netlink_attachskb+0x810/0x810
[ 113.592376][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.592541][ T660] netlink_sendmsg+0x714/0xbd0
[ 113.592713][ T660] ? netlink_unicast+0x780/0x780
[ 113.592898][ T660] ? __import_iovec+0x230/0x3b0
[ 113.593059][ T660] ? netlink_unicast+0x780/0x780
[ 113.593234][ T660] ____sys_sendmsg+0x3dd/0x890
[ 113.593408][ T660] ? get_timestamp.constprop.0+0x380/0x380
[ 113.593716][ T660] ? __copy_msghdr+0x3c0/0x3c0
[ 113.593900][ T660] ___sys_sendmsg+0xed/0x170
[ 113.594068][ T660] ? kasan_record_aux_stack+0x8c/0xa0
[ 113.594331][ T660] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 113.594532][ T660] ? copy_msghdr_from_user+0x110/0x110
[ 113.594692][ T660] ? find_held_lock+0x2b/0x80
[ 113.594859][ T660] ? __lock_acquire+0x449/0x7e0
[ 113.595109][ T660] ? find_held_lock+0x2b/0x80
[ 113.595267][ T660] ? __virt_addr_valid+0x22a/0x450
[ 113.595422][ T660] ? __lock_release+0x5d/0x170
[ 113.595582][ T660] __sys_sendmsg+0x10b/0x1a0
[ 113.595865][ T660] ? __call_rcu_common.constprop.0+0x318/0x630
[ 113.596066][ T660] ? __sys_sendmsg_sock+0x20/0x20
[ 113.596227][ T660] ? rcu_is_watching+0x12/0xb0
[ 113.596399][ T660] do_syscall_64+0xc1/0xfd0
[ 113.596664][ T660] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.596917][ T660] RIP: 0033:0x7f837ba421d7
[ 113.597092][ T660] 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
[ 113.597784][ T660] RSP: 002b:00007fff87d89a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 113.598043][ T660] RAX: ffffffffffffffda RBX: 00007fff87d8a1b0 RCX: 00007f837ba421d7
[ 113.598374][ T660] RDX: 0000000000000000 RSI: 00007fff87d89af0 RDI: 0000000000000005
[ 113.598614][ T660] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 113.598977][ T660] R10: 00007f837b93ef60 R11: 0000000000000246 R12: 0000000000000002
[ 113.599213][ T660] R13: 00000000690df5af R14: 0000000000499600 R15: 0000000000000000
[ 113.599467][ T660]
[ 113.599679][ T660] irq event stamp: 41783
[ 113.599828][ T660] hardirqs last enabled at (41783): [] finish_task_switch.isra.0+0x245/0x960
[ 113.600144][ T660] hardirqs last disabled at (41782): [] __schedule+0x94a/0x1b10
[ 113.600515][ T660] softirqs last enabled at (41102): [] handle_softirqs+0x352/0x610
[ 113.600812][ T660] softirqs last disabled at (41097): [] irq_exit_rcu+0xab/0x100
[ 113.601197][ T660] ---[ end trace 0000000000000000 ]---