[ 15.802676][ T249] ip (249) used greatest stack depth: 24176 bytes left
[ 16.879549][ T272] ip (272) used greatest stack depth: 23528 bytes left
[ 22.670315][ T324] gre: GRE over IPv4 demultiplexer driver
[ 22.703216][ T324] ip_gre: GRE over IPv4 tunneling driver
[ 25.235510][ T346] 8021q: 802.1Q VLAN Support v1.8
[ 29.634483][ T385] GACT probability NOT on
[ 75.300760][ C3] hrtimer: interrupt took 10350008 ns
[ 211.402436][ T577] ==================================================================
[ 211.402758][ T577] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 211.403057][ T577] Read of size 1 at addr ffff8880104a46ac by task ip/577
[ 211.403273][ T577]
[ 211.403366][ T577] CPU: 2 UID: 0 PID: 577 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 211.403370][ T577] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 211.403374][ T577] Call Trace:
[ 211.403377][ T577]
[ 211.403379][ T577] dump_stack_lvl+0x82/0xc0
[ 211.403387][ T577] print_address_description.constprop.0+0x2c/0x3a0
[ 211.403398][ T577] ? kobject_put+0xbb/0xd0
[ 211.403404][ T577] print_report+0xb4/0x270
[ 211.403407][ T577] ? kobject_put+0xbb/0xd0
[ 211.403410][ T577] ? kasan_addr_to_slab+0x21/0x70
[ 211.403413][ T577] ? kobject_put+0xbb/0xd0
[ 211.403416][ T577] kasan_report+0xca/0x100
[ 211.403420][ T577] ? kobject_put+0xbb/0xd0
[ 211.403425][ T577] kobject_put+0xbb/0xd0
[ 211.403429][ T577] netdev_run_todo+0x5f0/0xc60
[ 211.403437][ T577] ? dev_ingress_queue_create+0x190/0x190
[ 211.403440][ T577] ? generic_xdp_install+0x410/0x410
[ 211.403444][ T577] ? vrf_dellink+0xff/0x150 [vrf]
[ 211.403453][ T577] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 211.403459][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.403473][ T577] rtnl_dellink+0x350/0xa30
[ 211.403480][ T577] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 211.403499][ T577] ? find_held_lock+0x2b/0x80
[ 211.403503][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.403509][ T577] ? find_held_lock+0x2b/0x80
[ 211.403512][ T577] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 211.403515][ T577] ? __lock_release+0x5d/0x170
[ 211.403520][ T577] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 211.403523][ T577] rtnetlink_rcv_msg+0x709/0xc00
[ 211.403527][ T577] ? rtnl_port_fill+0x850/0x850
[ 211.403529][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.403537][ T577] netlink_rcv_skb+0x121/0x340
[ 211.403543][ T577] ? rtnl_port_fill+0x850/0x850
[ 211.403546][ T577] ? netlink_ack+0xdd0/0xdd0
[ 211.403553][ T577] ? netlink_deliver_tap+0x13e/0x340
[ 211.403555][ T577] ? netlink_deliver_tap+0xc3/0x340
[ 211.403559][ T577] netlink_unicast+0x4aa/0x780
[ 211.403563][ T577] ? netlink_attachskb+0x810/0x810
[ 211.403567][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.403573][ T577] netlink_sendmsg+0x714/0xbd0
[ 211.403577][ T577] ? netlink_unicast+0x780/0x780
[ 211.403581][ T577] ? __import_iovec+0x230/0x3b0
[ 211.403590][ T577] ? netlink_unicast+0x780/0x780
[ 211.403594][ T577] ____sys_sendmsg+0x3dd/0x890
[ 211.403599][ T577] ? get_timestamp.constprop.0+0x380/0x380
[ 211.403602][ T577] ? __copy_msghdr+0x3c0/0x3c0
[ 211.403609][ T577] ___sys_sendmsg+0xed/0x170
[ 211.403612][ T577] ? kasan_record_aux_stack+0x8c/0xa0
[ 211.403615][ T577] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 211.403628][ T577] ? copy_msghdr_from_user+0x110/0x110
[ 211.403633][ T577] ? find_held_lock+0x2b/0x80
[ 211.403637][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.403643][ T577] ? find_held_lock+0x2b/0x80
[ 211.403646][ T577] ? __virt_addr_valid+0x22a/0x450
[ 211.403654][ T577] ? __lock_release+0x5d/0x170
[ 211.403660][ T577] __sys_sendmsg+0x10b/0x1a0
[ 211.403663][ T577] ? __call_rcu_common.constprop.0+0x318/0x630
[ 211.403667][ T577] ? __sys_sendmsg_sock+0x20/0x20
[ 211.403675][ T577] ? rcu_is_watching+0x12/0xb0
[ 211.403679][ T577] do_syscall_64+0xc1/0xfd0
[ 211.403684][ T577] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 211.403689][ T577] RIP: 0033:0x7fdee4cde1d7
[ 211.403694][ T577] 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
[ 211.403697][ T577] RSP: 002b:00007ffc84022bb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 211.403703][ T577] RAX: ffffffffffffffda RBX: 00007ffc840232e0 RCX: 00007fdee4cde1d7
[ 211.403705][ T577] RDX: 0000000000000000 RSI: 00007ffc84022c20 RDI: 0000000000000005
[ 211.403707][ T577] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 211.403708][ T577] R10: 00007fdee4bdaf60 R11: 0000000000000246 R12: 0000000000000002
[ 211.403710][ T577] R13: 00000000690df370 R14: 0000000000499600 R15: 0000000000000000
[ 211.403716][ T577]
[ 211.403717][ T577]
[ 211.416679][ T577] Allocated by task 406:
[ 211.416824][ T577] kasan_save_stack+0x24/0x40
[ 211.417048][ T577] kasan_save_track+0x14/0x30
[ 211.417241][ T577] __kasan_kmalloc+0x7b/0x90
[ 211.417422][ T577] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 211.417604][ T577] alloc_netdev_mqs+0x7d/0x1370
[ 211.417787][ T577] rtnl_create_link+0xa9e/0xe20
[ 211.417985][ T577] rtnl_newlink_create+0x203/0x770
[ 211.418185][ T577] __rtnl_newlink+0x231/0xa30
[ 211.418366][ T577] rtnl_newlink+0x693/0xa60
[ 211.418530][ T577] rtnetlink_rcv_msg+0x709/0xc00
[ 211.418693][ T577] netlink_rcv_skb+0x121/0x340
[ 211.418878][ T577] netlink_unicast+0x4aa/0x780
[ 211.419053][ T577] netlink_sendmsg+0x714/0xbd0
[ 211.419240][ T577] ____sys_sendmsg+0x3dd/0x890
[ 211.419515][ T577] ___sys_sendmsg+0xed/0x170
[ 211.419683][ T577] __sys_sendmsg+0x10b/0x1a0
[ 211.419860][ T577] do_syscall_64+0xc1/0xfd0
[ 211.420159][ T577] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 211.420368][ T577]
[ 211.420546][ T577] Freed by task 577:
[ 211.420674][ T577] kasan_save_stack+0x24/0x40
[ 211.420986][ T577] kasan_save_track+0x14/0x30
[ 211.421175][ T577] __kasan_save_free_info+0x3b/0x60
[ 211.421446][ T577] __kasan_slab_free+0x3f/0x60
[ 211.421613][ T577] kfree+0x21d/0x540
[ 211.421735][ T577] device_release+0x9c/0x210
[ 211.421930][ T577] kobject_cleanup+0xfe/0x360
[ 211.422115][ T577] netdev_run_todo+0x81f/0xc60
[ 211.422296][ T577] rtnl_dellink+0x350/0xa30
[ 211.422460][ T577] rtnetlink_rcv_msg+0x709/0xc00
[ 211.422676][ T577] netlink_rcv_skb+0x121/0x340
[ 211.422979][ T577] netlink_unicast+0x4aa/0x780
[ 211.423193][ T577] netlink_sendmsg+0x714/0xbd0
[ 211.423404][ T577] ____sys_sendmsg+0x3dd/0x890
[ 211.423697][ T577] ___sys_sendmsg+0xed/0x170
[ 211.423881][ T577] __sys_sendmsg+0x10b/0x1a0
[ 211.424285][ T577] do_syscall_64+0xc1/0xfd0
[ 211.424452][ T577] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 211.424684][ T577]
[ 211.424789][ T577] The buggy address belongs to the object at ffff8880104a4000
[ 211.424789][ T577] which belongs to the cache kmalloc-4k of size 4096
[ 211.425386][ T577] The buggy address is located 1708 bytes inside of
[ 211.425386][ T577] freed 4096-byte region [ffff8880104a4000, ffff8880104a5000)
[ 211.426034][ T577]
[ 211.426152][ T577] The buggy address belongs to the physical page:
[ 211.426383][ T577] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104a0
[ 211.426785][ T577] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 211.427067][ T577] flags: 0x80000000000040(head|node=0|zone=1)
[ 211.427282][ T577] page_type: f5(slab)
[ 211.427415][ T577] raw: 0080000000000040 ffff888001043700 ffffea000035fa10 ffffea0000377010
[ 211.427846][ T577] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 211.428163][ T577] head: 0080000000000040 ffff888001043700 ffffea000035fa10 ffffea0000377010
[ 211.428566][ T577] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 211.428868][ T577] head: 0080000000000003 ffffea0000412801 00000000ffffffff 00000000ffffffff
[ 211.429272][ T577] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 211.429571][ T577] page dumped because: kasan: bad access detected
[ 211.429771][ T577]
[ 211.429865][ T577] Memory state around the buggy address:
[ 211.430127][ T577] ffff8880104a4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 211.430361][ T577] ffff8880104a4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 211.430613][ T577] >ffff8880104a4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 211.430994][ T577] ^
[ 211.431165][ T577] ffff8880104a4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 211.431404][ T577] ffff8880104a4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 211.431642][ T577] ==================================================================
[ 211.432495][ T577] Disabling lock debugging due to kernel taint
[ 211.432738][ T577] ------------[ cut here ]------------
[ 211.432935][ T577] refcount_t: underflow; use-after-free.
[ 211.433294][ T577] WARNING: CPU: 2 PID: 577 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 211.433633][ T577] Modules linked in: act_gact cls_flower sch_ingress 8021q ip_gre gre vrf veth
[ 211.433984][ T577] CPU: 2 UID: 0 PID: 577 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 211.434411][ T577] Tainted: [B]=BAD_PAGE
[ 211.434559][ T577] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 211.434897][ T577] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 211.435230][ T577] 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 ad 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
[ 211.435956][ T577] RSP: 0000:ffffc90000d7f1f0 EFLAGS: 00010286
[ 211.436198][ T577] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 211.436467][ T577] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 211.436858][ T577] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff5cbe134
[ 211.437229][ T577] R10: 0000000000000003 R11: ffffc90000d7ed80 R12: 0000000000000001
[ 211.437673][ T577] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 211.437966][ T577] FS: 00007fdee4b10800(0000) GS:ffff8880868f2000(0000) knlGS:0000000000000000
[ 211.438273][ T577] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 211.438522][ T577] CR2: 00007efc194f5920 CR3: 00000000185c1005 CR4: 0000000000772ef0
[ 211.438785][ T577] PKRU: 55555554
[ 211.438947][ T577] Call Trace:
[ 211.439100][ T577]
[ 211.439207][ T577] netdev_run_todo+0x5f0/0xc60
[ 211.439505][ T577] ? dev_ingress_queue_create+0x190/0x190
[ 211.439694][ T577] ? generic_xdp_install+0x410/0x410
[ 211.439899][ T577] ? vrf_dellink+0xff/0x150 [vrf]
[ 211.440097][ T577] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 211.440421][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.440607][ T577] rtnl_dellink+0x350/0xa30
[ 211.440823][ T577] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 211.441156][ T577] ? find_held_lock+0x2b/0x80
[ 211.441438][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.441634][ T577] ? find_held_lock+0x2b/0x80
[ 211.441824][ T577] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 211.442011][ T577] ? __lock_release+0x5d/0x170
[ 211.442192][ T577] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 211.442419][ T577] rtnetlink_rcv_msg+0x709/0xc00
[ 211.442600][ T577] ? rtnl_port_fill+0x850/0x850
[ 211.442786][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.442985][ T577] netlink_rcv_skb+0x121/0x340
[ 211.443169][ T577] ? rtnl_port_fill+0x850/0x850
[ 211.443353][ T577] ? netlink_ack+0xdd0/0xdd0
[ 211.443547][ T577] ? netlink_deliver_tap+0x13e/0x340
[ 211.443725][ T577] ? netlink_deliver_tap+0xc3/0x340
[ 211.443928][ T577] netlink_unicast+0x4aa/0x780
[ 211.444148][ T577] ? netlink_attachskb+0x810/0x810
[ 211.444440][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.444625][ T577] netlink_sendmsg+0x714/0xbd0
[ 211.444811][ T577] ? netlink_unicast+0x780/0x780
[ 211.445028][ T577] ? __import_iovec+0x230/0x3b0
[ 211.445307][ T577] ? netlink_unicast+0x780/0x780
[ 211.445503][ T577] ____sys_sendmsg+0x3dd/0x890
[ 211.445687][ T577] ? get_timestamp.constprop.0+0x380/0x380
[ 211.445925][ T577] ? __copy_msghdr+0x3c0/0x3c0
[ 211.446215][ T577] ___sys_sendmsg+0xed/0x170
[ 211.446397][ T577] ? kasan_record_aux_stack+0x8c/0xa0
[ 211.446592][ T577] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 211.446931][ T577] ? copy_msghdr_from_user+0x110/0x110
[ 211.447124][ T577] ? find_held_lock+0x2b/0x80
[ 211.447308][ T577] ? __lock_acquire+0x449/0x7e0
[ 211.447507][ T577] ? find_held_lock+0x2b/0x80
[ 211.447832][ T577] ? __virt_addr_valid+0x22a/0x450
[ 211.448240][ T577] ? __lock_release+0x5d/0x170
[ 211.448440][ T577] __sys_sendmsg+0x10b/0x1a0
[ 211.448625][ T577] ? __call_rcu_common.constprop.0+0x318/0x630
[ 211.448855][ T577] ? __sys_sendmsg_sock+0x20/0x20
[ 211.449043][ T577] ? rcu_is_watching+0x12/0xb0
[ 211.449220][ T577] do_syscall_64+0xc1/0xfd0
[ 211.449409][ T577] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 211.449751][ T577] RIP: 0033:0x7fdee4cde1d7
[ 211.449971][ T577] 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
[ 211.450638][ T577] RSP: 002b:00007ffc84022bb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 211.450955][ T577] RAX: ffffffffffffffda RBX: 00007ffc840232e0 RCX: 00007fdee4cde1d7
[ 211.451240][ T577] RDX: 0000000000000000 RSI: 00007ffc84022c20 RDI: 0000000000000005
[ 211.451525][ T577] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 211.451783][ T577] R10: 00007fdee4bdaf60 R11: 0000000000000246 R12: 0000000000000002
[ 211.452146][ T577] R13: 00000000690df370 R14: 0000000000499600 R15: 0000000000000000
[ 211.452421][ T577]
[ 211.452565][ T577] irq event stamp: 43749
[ 211.452707][ T577] hardirqs last enabled at (43749): [] irqentry_exit+0x3b/0x80
[ 211.453111][ T577] hardirqs last disabled at (43748): [] handle_softirqs+0x47f/0x610
[ 211.453414][ T577] softirqs last enabled at (43450): [] handle_softirqs+0x352/0x610
[ 211.453809][ T577] softirqs last disabled at (43445): [] irq_exit_rcu+0xab/0x100
[ 211.454105][ T577] ---[ end trace 0000000000000000 ]---