[ 18.634211][ T276] ip (276) used greatest stack depth: 23728 bytes left
[ 360.443562][ T1687] ==================================================================
[ 360.444078][ T1687] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 360.444529][ T1687] Read of size 1 at addr ffff888008fc16ac by task ip/1687
[ 360.444903][ T1687]
[ 360.445036][ T1687] CPU: 3 UID: 0 PID: 1687 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 360.445044][ T1687] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 360.445048][ T1687] Call Trace:
[ 360.445051][ T1687]
[ 360.445054][ T1687] dump_stack_lvl+0x82/0xc0
[ 360.445068][ T1687] print_address_description.constprop.0+0x2c/0x3a0
[ 360.445078][ T1687] ? kobject_put+0xbb/0xd0
[ 360.445084][ T1687] print_report+0xb4/0x270
[ 360.445089][ T1687] ? kobject_put+0xbb/0xd0
[ 360.445093][ T1687] ? kasan_addr_to_slab+0x21/0x70
[ 360.445098][ T1687] ? kobject_put+0xbb/0xd0
[ 360.445102][ T1687] kasan_report+0xca/0x100
[ 360.445108][ T1687] ? kobject_put+0xbb/0xd0
[ 360.445117][ T1687] kobject_put+0xbb/0xd0
[ 360.445124][ T1687] netdev_run_todo+0x5f0/0xc60
[ 360.445131][ T1687] ? dev_ingress_queue_create+0x190/0x190
[ 360.445137][ T1687] ? generic_xdp_install+0x410/0x410
[ 360.445144][ T1687] ? vrf_dellink+0xff/0x150 [vrf]
[ 360.445162][ T1687] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 360.445171][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.445185][ T1687] rtnl_dellink+0x350/0xa30
[ 360.445194][ T1687] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 360.445227][ T1687] ? find_held_lock+0x2b/0x80
[ 360.445236][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.445245][ T1687] ? find_held_lock+0x2b/0x80
[ 360.445251][ T1687] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 360.445254][ T1687] ? __lock_release+0x5d/0x170
[ 360.445261][ T1687] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 360.445266][ T1687] rtnetlink_rcv_msg+0x709/0xc00
[ 360.445271][ T1687] ? rtnl_port_fill+0x850/0x850
[ 360.445275][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.445286][ T1687] netlink_rcv_skb+0x121/0x340
[ 360.445293][ T1687] ? rtnl_port_fill+0x850/0x850
[ 360.445299][ T1687] ? netlink_ack+0xdd0/0xdd0
[ 360.445309][ T1687] ? netlink_deliver_tap+0x13e/0x340
[ 360.445314][ T1687] ? netlink_deliver_tap+0xc3/0x340
[ 360.445320][ T1687] netlink_unicast+0x4aa/0x780
[ 360.445327][ T1687] ? netlink_attachskb+0x810/0x810
[ 360.445334][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.445344][ T1687] netlink_sendmsg+0x714/0xbd0
[ 360.445352][ T1687] ? netlink_unicast+0x780/0x780
[ 360.445359][ T1687] ? __import_iovec+0x230/0x3b0
[ 360.445370][ T1687] ? netlink_unicast+0x780/0x780
[ 360.445377][ T1687] ____sys_sendmsg+0x3dd/0x890
[ 360.445387][ T1687] ? get_timestamp.constprop.0+0x380/0x380
[ 360.445392][ T1687] ? __copy_msghdr+0x3c0/0x3c0
[ 360.445404][ T1687] ___sys_sendmsg+0xed/0x170
[ 360.445409][ T1687] ? kasan_record_aux_stack+0x8c/0xa0
[ 360.445414][ T1687] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 360.445427][ T1687] ? copy_msghdr_from_user+0x110/0x110
[ 360.445436][ T1687] ? find_held_lock+0x2b/0x80
[ 360.445444][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.445455][ T1687] ? find_held_lock+0x2b/0x80
[ 360.445461][ T1687] ? __virt_addr_valid+0x22a/0x450
[ 360.445470][ T1687] ? __lock_release+0x5d/0x170
[ 360.445481][ T1687] __sys_sendmsg+0x10b/0x1a0
[ 360.445486][ T1687] ? __call_rcu_common.constprop.0+0x318/0x630
[ 360.445493][ T1687] ? __sys_sendmsg_sock+0x20/0x20
[ 360.445505][ T1687] ? rcu_is_watching+0x12/0xb0
[ 360.445511][ T1687] do_syscall_64+0xc1/0xfd0
[ 360.445519][ T1687] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 360.445526][ T1687] RIP: 0033:0x7fc2d9ac41d7
[ 360.445533][ T1687] 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
[ 360.445538][ T1687] RSP: 002b:00007ffcb10b04e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 360.445545][ T1687] RAX: ffffffffffffffda RBX: 00007ffcb10b0c10 RCX: 00007fc2d9ac41d7
[ 360.445549][ T1687] RDX: 0000000000000000 RSI: 00007ffcb10b0550 RDI: 0000000000000005
[ 360.445553][ T1687] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 360.445555][ T1687] R10: 00007fc2d99c0f60 R11: 0000000000000246 R12: 0000000000000002
[ 360.445558][ T1687] R13: 00000000690de889 R14: 0000000000499600 R15: 0000000000000000
[ 360.445571][ T1687]
[ 360.445574][ T1687]
[ 360.468419][ T1687] Allocated by task 338:
[ 360.468788][ T1687] kasan_save_stack+0x24/0x40
[ 360.469296][ T1687] kasan_save_track+0x14/0x30
[ 360.469577][ T1687] __kasan_kmalloc+0x7b/0x90
[ 360.469930][ T1687] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 360.470408][ T1687] alloc_netdev_mqs+0x7d/0x1370
[ 360.470700][ T1687] rtnl_create_link+0xa9e/0xe20
[ 360.470988][ T1687] rtnl_newlink_create+0x203/0x770
[ 360.471318][ T1687] __rtnl_newlink+0x231/0xa30
[ 360.471814][ T1687] rtnl_newlink+0x693/0xa60
[ 360.472106][ T1687] rtnetlink_rcv_msg+0x709/0xc00
[ 360.472415][ T1687] netlink_rcv_skb+0x121/0x340
[ 360.472716][ T1687] netlink_unicast+0x4aa/0x780
[ 360.473201][ T1687] netlink_sendmsg+0x714/0xbd0
[ 360.473485][ T1687] ____sys_sendmsg+0x3dd/0x890
[ 360.473786][ T1687] ___sys_sendmsg+0xed/0x170
[ 360.474083][ T1687] __sys_sendmsg+0x10b/0x1a0
[ 360.474575][ T1687] do_syscall_64+0xc1/0xfd0
[ 360.474898][ T1687] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 360.475269][ T1687]
[ 360.475416][ T1687] Freed by task 1687:
[ 360.475786][ T1687] kasan_save_stack+0x24/0x40
[ 360.476068][ T1687] kasan_save_track+0x14/0x30
[ 360.476339][ T1687] __kasan_save_free_info+0x3b/0x60
[ 360.476613][ T1687] __kasan_slab_free+0x3f/0x60
[ 360.477078][ T1687] kfree+0x21d/0x540
[ 360.477289][ T1687] device_release+0x9c/0x210
[ 360.477617][ T1687] kobject_cleanup+0xfe/0x360
[ 360.477932][ T1687] netdev_run_todo+0x81f/0xc60
[ 360.478210][ T1687] rtnl_dellink+0x350/0xa30
[ 360.478680][ T1687] rtnetlink_rcv_msg+0x709/0xc00
[ 360.478993][ T1687] netlink_rcv_skb+0x121/0x340
[ 360.479284][ T1687] netlink_unicast+0x4aa/0x780
[ 360.479571][ T1687] netlink_sendmsg+0x714/0xbd0
[ 360.480081][ T1687] ____sys_sendmsg+0x3dd/0x890
[ 360.480397][ T1687] ___sys_sendmsg+0xed/0x170
[ 360.480879][ T1687] __sys_sendmsg+0x10b/0x1a0
[ 360.481166][ T1687] do_syscall_64+0xc1/0xfd0
[ 360.481668][ T1687] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 360.482019][ T1687]
[ 360.482160][ T1687] The buggy address belongs to the object at ffff888008fc1000
[ 360.482160][ T1687] which belongs to the cache kmalloc-4k of size 4096
[ 360.483066][ T1687] The buggy address is located 1708 bytes inside of
[ 360.483066][ T1687] freed 4096-byte region [ffff888008fc1000, ffff888008fc2000)
[ 360.483741][ T1687]
[ 360.484203][ T1687] The buggy address belongs to the physical page:
[ 360.484552][ T1687] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8fc0
[ 360.485048][ T1687] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 360.485474][ T1687] flags: 0x80000000000040(head|node=0|zone=1)
[ 360.485828][ T1687] page_type: f5(slab)
[ 360.486064][ T1687] raw: 0080000000000040 ffff888001043700 ffffea000016e810 ffffea0000527c10
[ 360.486566][ T1687] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 360.487069][ T1687] head: 0080000000000040 ffff888001043700 ffffea000016e810 ffffea0000527c10
[ 360.487602][ T1687] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 360.488310][ T1687] head: 0080000000000003 ffffea000023f001 00000000ffffffff 00000000ffffffff
[ 360.489028][ T1687] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 360.489513][ T1687] page dumped because: kasan: bad access detected
[ 360.490063][ T1687]
[ 360.490210][ T1687] Memory state around the buggy address:
[ 360.490479][ T1687] ffff888008fc1580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 360.491080][ T1687] ffff888008fc1600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 360.491659][ T1687] >ffff888008fc1680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 360.492214][ T1687] ^
[ 360.492509][ T1687] ffff888008fc1700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 360.492925][ T1687] ffff888008fc1780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 360.493489][ T1687] ==================================================================
[ 360.494296][ T1687] Disabling lock debugging due to kernel taint
[ 360.494533][ T1687] ------------[ cut here ]------------
[ 360.494751][ T1687] refcount_t: underflow; use-after-free.
[ 360.494974][ T1687] WARNING: CPU: 1 PID: 1687 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 360.495353][ T1687] Modules linked in: vrf veth
[ 360.495541][ T1687] CPU: 1 UID: 0 PID: 1687 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 360.495990][ T1687] Tainted: [B]=BAD_PAGE
[ 360.496141][ T1687] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 360.496493][ T1687] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 360.496780][ T1687] 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 25 8d 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
[ 360.497628][ T1687] RSP: 0018:ffffc900027e71f0 EFLAGS: 00010286
[ 360.497894][ T1687] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 360.498279][ T1687] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 360.498626][ T1687] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff1b7e134
[ 360.498941][ T1687] R10: 0000000000000003 R11: ffffc900027e6d80 R12: 0000000000000001
[ 360.499333][ T1687] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 360.499588][ T1687] FS: 00007fc2d98f6800(0000) GS:ffff8880a7272000(0000) knlGS:0000000000000000
[ 360.499934][ T1687] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 360.500288][ T1687] CR2: 00007f4cdcc37000 CR3: 0000000014baa005 CR4: 0000000000772ef0
[ 360.500640][ T1687] PKRU: 55555554
[ 360.500780][ T1687] Call Trace:
[ 360.500960][ T1687]
[ 360.501160][ T1687] netdev_run_todo+0x5f0/0xc60
[ 360.501355][ T1687] ? dev_ingress_queue_create+0x190/0x190
[ 360.501620][ T1687] ? generic_xdp_install+0x410/0x410
[ 360.501884][ T1687] ? vrf_dellink+0xff/0x150 [vrf]
[ 360.502189][ T1687] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 360.502435][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.502625][ T1687] rtnl_dellink+0x350/0xa30
[ 360.502847][ T1687] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 360.503210][ T1687] ? find_held_lock+0x2b/0x80
[ 360.503408][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.503595][ T1687] ? find_held_lock+0x2b/0x80
[ 360.503787][ T1687] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 360.504119][ T1687] ? __lock_release+0x5d/0x170
[ 360.504328][ T1687] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 360.504553][ T1687] rtnetlink_rcv_msg+0x709/0xc00
[ 360.504854][ T1687] ? rtnl_port_fill+0x850/0x850
[ 360.505075][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.505261][ T1687] netlink_rcv_skb+0x121/0x340
[ 360.505451][ T1687] ? rtnl_port_fill+0x850/0x850
[ 360.505734][ T1687] ? netlink_ack+0xdd0/0xdd0
[ 360.505954][ T1687] ? netlink_deliver_tap+0x13e/0x340
[ 360.506154][ T1687] ? netlink_deliver_tap+0xc3/0x340
[ 360.506345][ T1687] netlink_unicast+0x4aa/0x780
[ 360.506629][ T1687] ? netlink_attachskb+0x810/0x810
[ 360.506832][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.507028][ T1687] netlink_sendmsg+0x714/0xbd0
[ 360.507225][ T1687] ? netlink_unicast+0x780/0x780
[ 360.507516][ T1687] ? __import_iovec+0x230/0x3b0
[ 360.507712][ T1687] ? netlink_unicast+0x780/0x780
[ 360.507909][ T1687] ____sys_sendmsg+0x3dd/0x890
[ 360.508118][ T1687] ? get_timestamp.constprop.0+0x380/0x380
[ 360.508472][ T1687] ? __copy_msghdr+0x3c0/0x3c0
[ 360.508668][ T1687] ___sys_sendmsg+0xed/0x170
[ 360.508864][ T1687] ? kasan_record_aux_stack+0x8c/0xa0
[ 360.509058][ T1687] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 360.509437][ T1687] ? copy_msghdr_from_user+0x110/0x110
[ 360.509622][ T1687] ? find_held_lock+0x2b/0x80
[ 360.509811][ T1687] ? __lock_acquire+0x449/0x7e0
[ 360.510031][ T1687] ? find_held_lock+0x2b/0x80
[ 360.510230][ T1687] ? __virt_addr_valid+0x22a/0x450
[ 360.510432][ T1687] ? __lock_release+0x5d/0x170
[ 360.510624][ T1687] __sys_sendmsg+0x10b/0x1a0
[ 360.510813][ T1687] ? __call_rcu_common.constprop.0+0x318/0x630
[ 360.511175][ T1687] ? __sys_sendmsg_sock+0x20/0x20
[ 360.511385][ T1687] ? rcu_is_watching+0x12/0xb0
[ 360.511580][ T1687] do_syscall_64+0xc1/0xfd0
[ 360.511766][ T1687] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 360.512126][ T1687] RIP: 0033:0x7fc2d9ac41d7
[ 360.512343][ T1687] 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
[ 360.513135][ T1687] RSP: 002b:00007ffcb10b04e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 360.513424][ T1687] RAX: ffffffffffffffda RBX: 00007ffcb10b0c10 RCX: 00007fc2d9ac41d7
[ 360.513806][ T1687] RDX: 0000000000000000 RSI: 00007ffcb10b0550 RDI: 0000000000000005
[ 360.514097][ T1687] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 360.514383][ T1687] R10: 00007fc2d99c0f60 R11: 0000000000000246 R12: 0000000000000002
[ 360.514767][ T1687] R13: 00000000690de889 R14: 0000000000499600 R15: 0000000000000000
[ 360.515132][ T1687]
[ 360.515284][ T1687] irq event stamp: 46139
[ 360.515521][ T1687] hardirqs last enabled at (46139): [] kasan_quarantine_put+0xf9/0x210
[ 360.515872][ T1687] hardirqs last disabled at (46138): [] kasan_quarantine_put+0xac/0x210
[ 360.516208][ T1687] softirqs last enabled at (45788): [] handle_softirqs+0x352/0x610
[ 360.516644][ T1687] softirqs last disabled at (45781): [] irq_exit_rcu+0xab/0x100
[ 360.516999][ T1687] ---[ end trace 0000000000000000 ]---