[ 18.005495][ T249] ip (249) used greatest stack depth: 23824 bytes left
[ 27.236987][ T337] 8021q: 802.1Q VLAN Support v1.8
[ 27.870242][ T342] gre: GRE over IPv4 demultiplexer driver
[ 27.974975][ T342] ip6_gre: GRE over IPv6 tunneling driver
[ 40.356914][ T419] GACT probability NOT on
[ 68.904446][ T636] ==================================================================
[ 68.904756][ T636] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 68.905043][ T636] Read of size 1 at addr ffff888005d516ac by task ip/636
[ 68.905298][ T636]
[ 68.905398][ T636] CPU: 2 UID: 0 PID: 636 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 68.905403][ T636] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.905410][ T636] Call Trace:
[ 68.905412][ T636]
[ 68.905414][ T636] dump_stack_lvl+0x82/0xc0
[ 68.905420][ T636] print_address_description.constprop.0+0x2c/0x3a0
[ 68.905430][ T636] ? kobject_put+0xbb/0xd0
[ 68.905434][ T636] print_report+0xb4/0x270
[ 68.905437][ T636] ? kobject_put+0xbb/0xd0
[ 68.905440][ T636] ? kasan_addr_to_slab+0x21/0x70
[ 68.905443][ T636] ? kobject_put+0xbb/0xd0
[ 68.905446][ T636] kasan_report+0xca/0x100
[ 68.905450][ T636] ? kobject_put+0xbb/0xd0
[ 68.905455][ T636] kobject_put+0xbb/0xd0
[ 68.905460][ T636] netdev_run_todo+0x5f0/0xc60
[ 68.905469][ T636] ? dev_ingress_queue_create+0x190/0x190
[ 68.905474][ T636] ? generic_xdp_install+0x410/0x410
[ 68.905477][ T636] ? unregister_netdevice_many+0x20/0x20
[ 68.905485][ T636] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 68.905495][ T636] rtnl_dellink+0x350/0xa30
[ 68.905502][ T636] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 68.905523][ T636] ? find_held_lock+0x2b/0x80
[ 68.905536][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.905546][ T636] ? find_held_lock+0x2b/0x80
[ 68.905550][ T636] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 68.905552][ T636] ? __lock_release+0x5d/0x170
[ 68.905557][ T636] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 68.905560][ T636] rtnetlink_rcv_msg+0x709/0xc00
[ 68.905564][ T636] ? rtnl_port_fill+0x850/0x850
[ 68.905567][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.905574][ T636] netlink_rcv_skb+0x121/0x340
[ 68.905578][ T636] ? rtnl_port_fill+0x850/0x850
[ 68.905582][ T636] ? netlink_ack+0xdd0/0xdd0
[ 68.905588][ T636] ? netlink_deliver_tap+0x13e/0x340
[ 68.905591][ T636] ? netlink_deliver_tap+0xc3/0x340
[ 68.905595][ T636] netlink_unicast+0x4aa/0x780
[ 68.905599][ T636] ? netlink_attachskb+0x810/0x810
[ 68.905603][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.905608][ T636] netlink_sendmsg+0x714/0xbd0
[ 68.905613][ T636] ? netlink_unicast+0x780/0x780
[ 68.905617][ T636] ? __import_iovec+0x230/0x3b0
[ 68.905628][ T636] ? netlink_unicast+0x780/0x780
[ 68.905632][ T636] ____sys_sendmsg+0x3dd/0x890
[ 68.905641][ T636] ? get_timestamp.constprop.0+0x380/0x380
[ 68.905644][ T636] ? __copy_msghdr+0x3c0/0x3c0
[ 68.905652][ T636] ___sys_sendmsg+0xed/0x170
[ 68.905655][ T636] ? kasan_record_aux_stack+0x8c/0xa0
[ 68.905658][ T636] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 68.905665][ T636] ? copy_msghdr_from_user+0x110/0x110
[ 68.905671][ T636] ? find_held_lock+0x2b/0x80
[ 68.905675][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.905681][ T636] ? find_held_lock+0x2b/0x80
[ 68.905684][ T636] ? __virt_addr_valid+0x22a/0x450
[ 68.905693][ T636] ? __lock_release+0x5d/0x170
[ 68.905703][ T636] __sys_sendmsg+0x10b/0x1a0
[ 68.905708][ T636] ? __call_rcu_common.constprop.0+0x318/0x630
[ 68.905712][ T636] ? __sys_sendmsg_sock+0x20/0x20
[ 68.905719][ T636] ? rcu_is_watching+0x12/0xb0
[ 68.905723][ T636] do_syscall_64+0xc1/0xfd0
[ 68.905731][ T636] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 68.905735][ T636] RIP: 0033:0x7fc699c571d7
[ 68.905740][ T636] 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
[ 68.905743][ T636] RSP: 002b:00007ffe54758c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 68.905749][ T636] RAX: ffffffffffffffda RBX: 00007ffe54759340 RCX: 00007fc699c571d7
[ 68.905751][ T636] RDX: 0000000000000000 RSI: 00007ffe54758c80 RDI: 0000000000000005
[ 68.905753][ T636] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 68.905755][ T636] R10: 00007fc699b53f60 R11: 0000000000000246 R12: 0000000000000002
[ 68.905757][ T636] R13: 00000000690ded6a R14: 0000000000499600 R15: 0000000000000000
[ 68.905763][ T636]
[ 68.905764][ T636]
[ 68.919632][ T636] Allocated by task 370:
[ 68.919794][ T636] kasan_save_stack+0x24/0x40
[ 68.920003][ T636] kasan_save_track+0x14/0x30
[ 68.920210][ T636] __kasan_kmalloc+0x7b/0x90
[ 68.920402][ T636] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 68.920618][ T636] alloc_netdev_mqs+0x7d/0x1370
[ 68.920822][ T636] rtnl_create_link+0xa9e/0xe20
[ 68.921014][ T636] rtnl_newlink_create+0x203/0x770
[ 68.921196][ T636] __rtnl_newlink+0x231/0xa30
[ 68.921368][ T636] rtnl_newlink+0x693/0xa60
[ 68.921565][ T636] rtnetlink_rcv_msg+0x709/0xc00
[ 68.921747][ T636] netlink_rcv_skb+0x121/0x340
[ 68.921930][ T636] netlink_unicast+0x4aa/0x780
[ 68.922255][ T636] netlink_sendmsg+0x714/0xbd0
[ 68.922478][ T636] ____sys_sendmsg+0x3dd/0x890
[ 68.922683][ T636] ___sys_sendmsg+0xed/0x170
[ 68.922866][ T636] __sys_sendmsg+0x10b/0x1a0
[ 68.923064][ T636] do_syscall_64+0xc1/0xfd0
[ 68.923242][ T636] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 68.923461][ T636]
[ 68.923547][ T636] Freed by task 636:
[ 68.923704][ T636] kasan_save_stack+0x24/0x40
[ 68.923889][ T636] kasan_save_track+0x14/0x30
[ 68.924091][ T636] __kasan_save_free_info+0x3b/0x60
[ 68.924269][ T636] __kasan_slab_free+0x3f/0x60
[ 68.924447][ T636] kfree+0x21d/0x540
[ 68.924680][ T636] device_release+0x9c/0x210
[ 68.924872][ T636] kobject_cleanup+0xfe/0x360
[ 68.925051][ T636] netdev_run_todo+0x81f/0xc60
[ 68.925238][ T636] rtnl_dellink+0x350/0xa30
[ 68.925514][ T636] rtnetlink_rcv_msg+0x709/0xc00
[ 68.925724][ T636] netlink_rcv_skb+0x121/0x340
[ 68.925908][ T636] netlink_unicast+0x4aa/0x780
[ 68.926079][ T636] netlink_sendmsg+0x714/0xbd0
[ 68.926355][ T636] ____sys_sendmsg+0x3dd/0x890
[ 68.926559][ T636] ___sys_sendmsg+0xed/0x170
[ 68.926737][ T636] __sys_sendmsg+0x10b/0x1a0
[ 68.926925][ T636] do_syscall_64+0xc1/0xfd0
[ 68.927206][ T636] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 68.927436][ T636]
[ 68.927526][ T636] The buggy address belongs to the object at ffff888005d51000
[ 68.927526][ T636] which belongs to the cache kmalloc-4k of size 4096
[ 68.927953][ T636] The buggy address is located 1708 bytes inside of
[ 68.927953][ T636] freed 4096-byte region [ffff888005d51000, ffff888005d52000)
[ 68.928370][ T636]
[ 68.928477][ T636] The buggy address belongs to the physical page:
[ 68.928680][ T636] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d50
[ 68.928990][ T636] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 68.929476][ T636] flags: 0x80000000000040(head|node=0|zone=1)
[ 68.929704][ T636] page_type: f5(slab)
[ 68.929835][ T636] raw: 0080000000000040 ffff888001043700 ffffea000021f410 ffffea0000219a10
[ 68.930175][ T636] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 68.930695][ T636] head: 0080000000000040 ffff888001043700 ffffea000021f410 ffffea0000219a10
[ 68.931035][ T636] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 68.931375][ T636] head: 0080000000000003 ffffea0000175401 00000000ffffffff 00000000ffffffff
[ 68.931762][ T636] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 68.932080][ T636] page dumped because: kasan: bad access detected
[ 68.932299][ T636]
[ 68.932427][ T636] Memory state around the buggy address:
[ 68.932662][ T636] ffff888005d51580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.933025][ T636] ffff888005d51600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.933280][ T636] >ffff888005d51680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.933557][ T636] ^
[ 68.933741][ T636] ffff888005d51700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.934160][ T636] ffff888005d51780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 68.934447][ T636] ==================================================================
[ 68.934980][ T636] Disabling lock debugging due to kernel taint
[ 68.935293][ T636] ------------[ cut here ]------------
[ 68.935536][ T636] refcount_t: underflow; use-after-free.
[ 68.935803][ T636] WARNING: CPU: 3 PID: 636 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 68.936218][ T636] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
[ 68.936713][ T636] CPU: 3 UID: 0 PID: 636 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 68.937206][ T636] Tainted: [B]=BAD_PAGE
[ 68.937398][ T636] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.937698][ T636] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 68.937991][ T636] 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 e5 84 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
[ 68.938830][ T636] RSP: 0018:ffffc90000fd71f0 EFLAGS: 00010286
[ 68.939153][ T636] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 68.939513][ T636] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 68.940016][ T636] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff0afe134
[ 68.940514][ T636] R10: 0000000000000003 R11: ffffc90000fd6d80 R12: 0000000000000001
[ 68.940861][ T636] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 68.941204][ T636] FS: 00007fc699a89800(0000) GS:ffff8880af772000(0000) knlGS:0000000000000000
[ 68.941590][ T636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 68.941893][ T636] CR2: 00007f55a1d02000 CR3: 000000000d9cb004 CR4: 0000000000772ef0
[ 68.942409][ T636] PKRU: 55555554
[ 68.942604][ T636] Call Trace:
[ 68.942936][ T636]
[ 68.943054][ T636] netdev_run_todo+0x5f0/0xc60
[ 68.943285][ T636] ? dev_ingress_queue_create+0x190/0x190
[ 68.943511][ T636] ? generic_xdp_install+0x410/0x410
[ 68.943750][ T636] ? unregister_netdevice_many+0x20/0x20
[ 68.943976][ T636] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 68.944206][ T636] rtnl_dellink+0x350/0xa30
[ 68.944448][ T636] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 68.944763][ T636] ? find_held_lock+0x2b/0x80
[ 68.944992][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.945365][ T636] ? find_held_lock+0x2b/0x80
[ 68.945735][ T636] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 68.945953][ T636] ? __lock_release+0x5d/0x170
[ 68.946170][ T636] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 68.946456][ T636] rtnetlink_rcv_msg+0x709/0xc00
[ 68.946683][ T636] ? rtnl_port_fill+0x850/0x850
[ 68.947051][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.947281][ T636] netlink_rcv_skb+0x121/0x340
[ 68.947513][ T636] ? rtnl_port_fill+0x850/0x850
[ 68.947739][ T636] ? netlink_ack+0xdd0/0xdd0
[ 68.948003][ T636] ? netlink_deliver_tap+0x13e/0x340
[ 68.948248][ T636] ? netlink_deliver_tap+0xc3/0x340
[ 68.948627][ T636] netlink_unicast+0x4aa/0x780
[ 68.948871][ T636] ? netlink_attachskb+0x810/0x810
[ 68.949272][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.949655][ T636] netlink_sendmsg+0x714/0xbd0
[ 68.949935][ T636] ? netlink_unicast+0x780/0x780
[ 68.950196][ T636] ? __import_iovec+0x230/0x3b0
[ 68.950442][ T636] ? netlink_unicast+0x780/0x780
[ 68.950720][ T636] ____sys_sendmsg+0x3dd/0x890
[ 68.950957][ T636] ? get_timestamp.constprop.0+0x380/0x380
[ 68.951268][ T636] ? __copy_msghdr+0x3c0/0x3c0
[ 68.951521][ T636] ___sys_sendmsg+0xed/0x170
[ 68.951775][ T636] ? kasan_record_aux_stack+0x8c/0xa0
[ 68.952021][ T636] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 68.952323][ T636] ? copy_msghdr_from_user+0x110/0x110
[ 68.952578][ T636] ? find_held_lock+0x2b/0x80
[ 68.952871][ T636] ? __lock_acquire+0x449/0x7e0
[ 68.953238][ T636] ? find_held_lock+0x2b/0x80
[ 68.953628][ T636] ? __virt_addr_valid+0x22a/0x450
[ 68.953890][ T636] ? __lock_release+0x5d/0x170
[ 68.954118][ T636] __sys_sendmsg+0x10b/0x1a0
[ 68.954489][ T636] ? __call_rcu_common.constprop.0+0x318/0x630
[ 68.954815][ T636] ? __sys_sendmsg_sock+0x20/0x20
[ 68.955065][ T636] ? rcu_is_watching+0x12/0xb0
[ 68.955325][ T636] do_syscall_64+0xc1/0xfd0
[ 68.955713][ T636] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 68.955993][ T636] RIP: 0033:0x7fc699c571d7
[ 68.956240][ T636] 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
[ 68.957247][ T636] RSP: 002b:00007ffe54758c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 68.957617][ T636] RAX: ffffffffffffffda RBX: 00007ffe54759340 RCX: 00007fc699c571d7
[ 68.958002][ T636] RDX: 0000000000000000 RSI: 00007ffe54758c80 RDI: 0000000000000005
[ 68.958377][ T636] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 68.958765][ T636] R10: 00007fc699b53f60 R11: 0000000000000246 R12: 0000000000000002
[ 68.959156][ T636] R13: 00000000690ded6a R14: 0000000000499600 R15: 0000000000000000
[ 68.959534][ T636]
[ 68.959898][ T636] irq event stamp: 46651
[ 68.960099][ T636] hardirqs last enabled at (46651): [] kasan_quarantine_put+0xf9/0x210
[ 68.960534][ T636] hardirqs last disabled at (46650): [] kasan_quarantine_put+0xac/0x210
[ 68.961090][ T636] softirqs last enabled at (46446): [] handle_softirqs+0x352/0x610
[ 68.961483][ T636] softirqs last disabled at (46439): [] irq_exit_rcu+0xab/0x100
[ 68.961892][ T636] ---[ end trace 0000000000000000 ]---