[ 16.716213][ T250] ip (250) used greatest stack depth: 23952 bytes left
[ 30.404581][ T348] GACT probability NOT on
[ 34.635997][ T403] ==================================================================
[ 34.636374][ T403] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 34.636662][ T403] Read of size 1 at addr ffff8880076416ac by task ip/403
[ 34.636898][ T403]
[ 34.637002][ T403] CPU: 1 UID: 0 PID: 403 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.637008][ T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.637011][ T403] Call Trace:
[ 34.637013][ T403]
[ 34.637015][ T403] dump_stack_lvl+0x82/0xc0
[ 34.637022][ T403] print_address_description.constprop.0+0x2c/0x3a0
[ 34.637029][ T403] ? kobject_put+0xbb/0xd0
[ 34.637033][ T403] print_report+0xb4/0x270
[ 34.637036][ T403] ? kobject_put+0xbb/0xd0
[ 34.637040][ T403] ? kasan_addr_to_slab+0x21/0x70
[ 34.637043][ T403] ? kobject_put+0xbb/0xd0
[ 34.637046][ T403] kasan_report+0xca/0x100
[ 34.637050][ T403] ? kobject_put+0xbb/0xd0
[ 34.637055][ T403] kobject_put+0xbb/0xd0
[ 34.637059][ T403] netdev_run_todo+0x5f0/0xc60
[ 34.637064][ T403] ? dev_ingress_queue_create+0x190/0x190
[ 34.637067][ T403] ? generic_xdp_install+0x410/0x410
[ 34.637072][ T403] ? vrf_dellink+0xff/0x150 [vrf]
[ 34.637080][ T403] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 34.637085][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.637094][ T403] rtnl_dellink+0x350/0xa30
[ 34.637100][ T403] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.637118][ T403] ? find_held_lock+0x2b/0x80
[ 34.637123][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.637129][ T403] ? find_held_lock+0x2b/0x80
[ 34.637133][ T403] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.637135][ T403] ? __lock_release+0x5d/0x170
[ 34.637140][ T403] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.637143][ T403] rtnetlink_rcv_msg+0x709/0xc00
[ 34.637147][ T403] ? rtnl_port_fill+0x850/0x850
[ 34.637150][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.637157][ T403] netlink_rcv_skb+0x121/0x340
[ 34.637162][ T403] ? rtnl_port_fill+0x850/0x850
[ 34.637165][ T403] ? netlink_ack+0xdd0/0xdd0
[ 34.637172][ T403] ? netlink_deliver_tap+0x13e/0x340
[ 34.637174][ T403] ? netlink_deliver_tap+0xc3/0x340
[ 34.637178][ T403] netlink_unicast+0x4aa/0x780
[ 34.637183][ T403] ? netlink_attachskb+0x810/0x810
[ 34.637187][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.637192][ T403] netlink_sendmsg+0x714/0xbd0
[ 34.637196][ T403] ? netlink_unicast+0x780/0x780
[ 34.637200][ T403] ? __import_iovec+0x230/0x3b0
[ 34.637207][ T403] ? netlink_unicast+0x780/0x780
[ 34.637210][ T403] ____sys_sendmsg+0x3dd/0x890
[ 34.637217][ T403] ? get_timestamp.constprop.0+0x380/0x380
[ 34.637220][ T403] ? __copy_msghdr+0x3c0/0x3c0
[ 34.637228][ T403] ___sys_sendmsg+0xed/0x170
[ 34.637231][ T403] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.637234][ T403] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.637240][ T403] ? copy_msghdr_from_user+0x110/0x110
[ 34.637245][ T403] ? find_held_lock+0x2b/0x80
[ 34.637249][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.637254][ T403] ? find_held_lock+0x2b/0x80
[ 34.637258][ T403] ? __virt_addr_valid+0x22a/0x450
[ 34.637262][ T403] ? __lock_release+0x5d/0x170
[ 34.637269][ T403] __sys_sendmsg+0x10b/0x1a0
[ 34.637272][ T403] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.637275][ T403] ? __sys_sendmsg_sock+0x20/0x20
[ 34.637283][ T403] ? rcu_is_watching+0x12/0xb0
[ 34.637287][ T403] do_syscall_64+0xc1/0xfd0
[ 34.637293][ T403] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.637297][ T403] RIP: 0033:0x7f04b1e961d7
[ 34.637302][ T403] 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
[ 34.637305][ T403] RSP: 002b:00007ffd214eec88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.637310][ T403] RAX: ffffffffffffffda RBX: 00007ffd214ef3b0 RCX: 00007f04b1e961d7
[ 34.637312][ T403] RDX: 0000000000000000 RSI: 00007ffd214eecf0 RDI: 0000000000000005
[ 34.637314][ T403] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.637315][ T403] R10: 00007f04b1d92f60 R11: 0000000000000246 R12: 0000000000000002
[ 34.637317][ T403] R13: 00000000690defa3 R14: 0000000000499600 R15: 0000000000000000
[ 34.637323][ T403]
[ 34.637324][ T403]
[ 34.650291][ T403] Allocated by task 321:
[ 34.650419][ T403] kasan_save_stack+0x24/0x40
[ 34.650596][ T403] kasan_save_track+0x14/0x30
[ 34.650762][ T403] __kasan_kmalloc+0x7b/0x90
[ 34.650941][ T403] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 34.651113][ T403] alloc_netdev_mqs+0x7d/0x1370
[ 34.651283][ T403] rtnl_create_link+0xa9e/0xe20
[ 34.651458][ T403] rtnl_newlink_create+0x203/0x770
[ 34.651623][ T403] __rtnl_newlink+0x231/0xa30
[ 34.651791][ T403] rtnl_newlink+0x693/0xa60
[ 34.651965][ T403] rtnetlink_rcv_msg+0x709/0xc00
[ 34.652135][ T403] netlink_rcv_skb+0x121/0x340
[ 34.652299][ T403] netlink_unicast+0x4aa/0x780
[ 34.652464][ T403] netlink_sendmsg+0x714/0xbd0
[ 34.652631][ T403] ____sys_sendmsg+0x3dd/0x890
[ 34.652809][ T403] ___sys_sendmsg+0xed/0x170
[ 34.652989][ T403] __sys_sendmsg+0x10b/0x1a0
[ 34.653153][ T403] do_syscall_64+0xc1/0xfd0
[ 34.653325][ T403] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.653531][ T403]
[ 34.653622][ T403] Freed by task 403:
[ 34.653746][ T403] kasan_save_stack+0x24/0x40
[ 34.653932][ T403] kasan_save_track+0x14/0x30
[ 34.654105][ T403] __kasan_save_free_info+0x3b/0x60
[ 34.654269][ T403] __kasan_slab_free+0x3f/0x60
[ 34.654431][ T403] kfree+0x21d/0x540
[ 34.654559][ T403] device_release+0x9c/0x210
[ 34.654738][ T403] kobject_cleanup+0xfe/0x360
[ 34.654915][ T403] netdev_run_todo+0x81f/0xc60
[ 34.655101][ T403] rtnl_dellink+0x350/0xa30
[ 34.655267][ T403] rtnetlink_rcv_msg+0x709/0xc00
[ 34.655436][ T403] netlink_rcv_skb+0x121/0x340
[ 34.655606][ T403] netlink_unicast+0x4aa/0x780
[ 34.655774][ T403] netlink_sendmsg+0x714/0xbd0
[ 34.655945][ T403] ____sys_sendmsg+0x3dd/0x890
[ 34.656113][ T403] ___sys_sendmsg+0xed/0x170
[ 34.656275][ T403] __sys_sendmsg+0x10b/0x1a0
[ 34.656468][ T403] do_syscall_64+0xc1/0xfd0
[ 34.656654][ T403] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.656864][ T403]
[ 34.656948][ T403] The buggy address belongs to the object at ffff888007641000
[ 34.656948][ T403] which belongs to the cache kmalloc-4k of size 4096
[ 34.657356][ T403] The buggy address is located 1708 bytes inside of
[ 34.657356][ T403] freed 4096-byte region [ffff888007641000, ffff888007642000)
[ 34.657804][ T403]
[ 34.657898][ T403] The buggy address belongs to the physical page:
[ 34.658103][ T403] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7640
[ 34.658403][ T403] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 34.658662][ T403] flags: 0x80000000000040(head|node=0|zone=1)
[ 34.658889][ T403] page_type: f5(slab)
[ 34.659030][ T403] raw: 0080000000000040 ffff888001043700 ffffea000015a210 ffffea0000164e10
[ 34.659334][ T403] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.659635][ T403] head: 0080000000000040 ffff888001043700 ffffea000015a210 ffffea0000164e10
[ 34.659935][ T403] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.660232][ T403] head: 0080000000000003 ffffea00001d9001 00000000ffffffff 00000000ffffffff
[ 34.660526][ T403] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 34.660825][ T403] page dumped because: kasan: bad access detected
[ 34.661034][ T403]
[ 34.661116][ T403] Memory state around the buggy address:
[ 34.661281][ T403] ffff888007641580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.661519][ T403] ffff888007641600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.661761][ T403] >ffff888007641680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.662011][ T403] ^
[ 34.662193][ T403] ffff888007641700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.662427][ T403] ffff888007641780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.662667][ T403] ==================================================================
[ 34.663071][ T403] Disabling lock debugging due to kernel taint
[ 34.663348][ T403] ------------[ cut here ]------------
[ 34.663532][ T403] refcount_t: underflow; use-after-free.
[ 34.663747][ T403] WARNING: CPU: 0 PID: 403 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 34.664115][ T403] Modules linked in: act_gact cls_flower sch_ingress vrf veth
[ 34.664398][ T403] CPU: 0 UID: 0 PID: 403 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.664788][ T403] Tainted: [B]=BAD_PAGE
[ 34.664933][ T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.665205][ T403] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 34.665458][ T403] 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 98 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
[ 34.666113][ T403] RSP: 0018:ffffc900005671f0 EFLAGS: 00010286
[ 34.666336][ T403] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 34.666622][ T403] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 34.666910][ T403] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff317e134
[ 34.667210][ T403] R10: 0000000000000003 R11: ffffc90000566d80 R12: 0000000000000001
[ 34.667471][ T403] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 34.667786][ T403] FS: 00007f04b1cc8800(0000) GS:ffff8880965f2000(0000) knlGS:0000000000000000
[ 34.668137][ T403] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 34.668365][ T403] CR2: 000056024f399dec CR3: 000000000ac72006 CR4: 0000000000772ef0
[ 34.668668][ T403] PKRU: 55555554
[ 34.668807][ T403] Call Trace:
[ 34.668949][ T403]
[ 34.669075][ T403] netdev_run_todo+0x5f0/0xc60
[ 34.669290][ T403] ? dev_ingress_queue_create+0x190/0x190
[ 34.669482][ T403] ? generic_xdp_install+0x410/0x410
[ 34.669679][ T403] ? vrf_dellink+0xff/0x150 [vrf]
[ 34.669875][ T403] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 34.670108][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.670287][ T403] rtnl_dellink+0x350/0xa30
[ 34.670475][ T403] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.670752][ T403] ? find_held_lock+0x2b/0x80
[ 34.670933][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.671135][ T403] ? find_held_lock+0x2b/0x80
[ 34.671321][ T403] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.671506][ T403] ? __lock_release+0x5d/0x170
[ 34.671706][ T403] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.671931][ T403] rtnetlink_rcv_msg+0x709/0xc00
[ 34.672118][ T403] ? rtnl_port_fill+0x850/0x850
[ 34.672289][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.672459][ T403] netlink_rcv_skb+0x121/0x340
[ 34.672664][ T403] ? rtnl_port_fill+0x850/0x850
[ 34.672850][ T403] ? netlink_ack+0xdd0/0xdd0
[ 34.673036][ T403] ? netlink_deliver_tap+0x13e/0x340
[ 34.673203][ T403] ? netlink_deliver_tap+0xc3/0x340
[ 34.673379][ T403] netlink_unicast+0x4aa/0x780
[ 34.673578][ T403] ? netlink_attachskb+0x810/0x810
[ 34.673768][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.673935][ T403] netlink_sendmsg+0x714/0xbd0
[ 34.674121][ T403] ? netlink_unicast+0x780/0x780
[ 34.674293][ T403] ? __import_iovec+0x230/0x3b0
[ 34.674663][ T403] ? netlink_unicast+0x780/0x780
[ 34.674844][ T403] ____sys_sendmsg+0x3dd/0x890
[ 34.675057][ T403] ? get_timestamp.constprop.0+0x380/0x380
[ 34.675372][ T403] ? __copy_msghdr+0x3c0/0x3c0
[ 34.675572][ T403] ___sys_sendmsg+0xed/0x170
[ 34.675765][ T403] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.675930][ T403] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.676299][ T403] ? copy_msghdr_from_user+0x110/0x110
[ 34.676698][ T403] ? find_held_lock+0x2b/0x80
[ 34.676901][ T403] ? __lock_acquire+0x449/0x7e0
[ 34.677091][ T403] ? find_held_lock+0x2b/0x80
[ 34.677363][ T403] ? __virt_addr_valid+0x22a/0x450
[ 34.677556][ T403] ? __lock_release+0x5d/0x170
[ 34.677762][ T403] __sys_sendmsg+0x10b/0x1a0
[ 34.677928][ T403] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.678257][ T403] ? __sys_sendmsg_sock+0x20/0x20
[ 34.678448][ T403] ? rcu_is_watching+0x12/0xb0
[ 34.678662][ T403] do_syscall_64+0xc1/0xfd0
[ 34.678854][ T403] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.679074][ T403] RIP: 0033:0x7f04b1e961d7
[ 34.679254][ T403] 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
[ 34.680166][ T403] RSP: 002b:00007ffd214eec88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.680549][ T403] RAX: ffffffffffffffda RBX: 00007ffd214ef3b0 RCX: 00007f04b1e961d7
[ 34.680933][ T403] RDX: 0000000000000000 RSI: 00007ffd214eecf0 RDI: 0000000000000005
[ 34.681253][ T403] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.681525][ T403] R10: 00007f04b1d92f60 R11: 0000000000000246 R12: 0000000000000002
[ 34.681914][ T403] R13: 00000000690defa3 R14: 0000000000499600 R15: 0000000000000000
[ 34.682189][ T403]
[ 34.682356][ T403] irq event stamp: 39235
[ 34.682538][ T403] hardirqs last enabled at (39235): [] finish_task_switch.isra.0+0x245/0x960
[ 34.682963][ T403] hardirqs last disabled at (39234): [] __schedule+0x94a/0x1b10
[ 34.683295][ T403] softirqs last enabled at (38532): [] handle_softirqs+0x352/0x610
[ 34.683718][ T403] softirqs last disabled at (38527): [] irq_exit_rcu+0xab/0x100
[ 34.684046][ T403] ---[ end trace 0000000000000000 ]---