[ 18.052236][ T252] ip (252) used greatest stack depth: 24320 bytes left
[ 24.648769][ T312] 8021q: 802.1Q VLAN Support v1.8
[ 26.193847][ T323] gre: GRE over IPv4 demultiplexer driver
[ 26.215618][ T323] ip_gre: GRE over IPv4 tunneling driver
[ 26.771287][ T330] ip (330) used greatest stack depth: 24176 bytes left
[ 35.123110][ T391] GACT probability NOT on
[ 133.400847][ T665] ==================================================================
[ 133.401229][ T665] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 133.401558][ T665] Read of size 1 at addr ffff888009f9c6ac by task ip/665
[ 133.401822][ T665]
[ 133.401963][ T665] CPU: 1 UID: 0 PID: 665 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 133.401968][ T665] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 133.401970][ T665] Call Trace:
[ 133.401972][ T665]
[ 133.401974][ T665] dump_stack_lvl+0x82/0xc0
[ 133.401981][ T665] print_address_description.constprop.0+0x2c/0x3a0
[ 133.401987][ T665] ? kobject_put+0xbb/0xd0
[ 133.401991][ T665] print_report+0xb4/0x270
[ 133.401994][ T665] ? kobject_put+0xbb/0xd0
[ 133.401997][ T665] ? kasan_addr_to_slab+0x21/0x70
[ 133.402000][ T665] ? kobject_put+0xbb/0xd0
[ 133.402004][ T665] kasan_report+0xca/0x100
[ 133.402007][ T665] ? kobject_put+0xbb/0xd0
[ 133.402013][ T665] kobject_put+0xbb/0xd0
[ 133.402016][ T665] netdev_run_todo+0x5f0/0xc60
[ 133.402021][ T665] ? dev_ingress_queue_create+0x190/0x190
[ 133.402024][ T665] ? generic_xdp_install+0x410/0x410
[ 133.402029][ T665] ? vrf_dellink+0xff/0x150 [vrf]
[ 133.402035][ T665] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 133.402040][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.402055][ T665] rtnl_dellink+0x350/0xa30
[ 133.402062][ T665] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 133.402084][ T665] ? find_held_lock+0x2b/0x80
[ 133.402089][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.402095][ T665] ? find_held_lock+0x2b/0x80
[ 133.402099][ T665] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 133.402101][ T665] ? __lock_release+0x5d/0x170
[ 133.402106][ T665] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 133.402109][ T665] rtnetlink_rcv_msg+0x709/0xc00
[ 133.402113][ T665] ? rtnl_port_fill+0x850/0x850
[ 133.402116][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.402123][ T665] netlink_rcv_skb+0x121/0x340
[ 133.402127][ T665] ? rtnl_port_fill+0x850/0x850
[ 133.402131][ T665] ? netlink_ack+0xdd0/0xdd0
[ 133.402137][ T665] ? netlink_deliver_tap+0x13e/0x340
[ 133.402142][ T665] ? netlink_deliver_tap+0xc3/0x340
[ 133.402148][ T665] netlink_unicast+0x4aa/0x780
[ 133.402156][ T665] ? netlink_attachskb+0x810/0x810
[ 133.402161][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.402170][ T665] netlink_sendmsg+0x714/0xbd0
[ 133.402177][ T665] ? netlink_unicast+0x780/0x780
[ 133.402183][ T665] ? __import_iovec+0x230/0x3b0
[ 133.402190][ T665] ? netlink_unicast+0x780/0x780
[ 133.402193][ T665] ____sys_sendmsg+0x3dd/0x890
[ 133.402199][ T665] ? get_timestamp.constprop.0+0x380/0x380
[ 133.402203][ T665] ? __copy_msghdr+0x3c0/0x3c0
[ 133.402210][ T665] ___sys_sendmsg+0xed/0x170
[ 133.402214][ T665] ? kasan_record_aux_stack+0x8c/0xa0
[ 133.402217][ T665] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 133.402224][ T665] ? copy_msghdr_from_user+0x110/0x110
[ 133.402229][ T665] ? find_held_lock+0x2b/0x80
[ 133.402233][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.402239][ T665] ? find_held_lock+0x2b/0x80
[ 133.402243][ T665] ? __virt_addr_valid+0x22a/0x450
[ 133.402251][ T665] ? __lock_release+0x5d/0x170
[ 133.402257][ T665] __sys_sendmsg+0x10b/0x1a0
[ 133.402260][ T665] ? __call_rcu_common.constprop.0+0x318/0x630
[ 133.402264][ T665] ? __sys_sendmsg_sock+0x20/0x20
[ 133.402272][ T665] ? rcu_is_watching+0x12/0xb0
[ 133.402276][ T665] do_syscall_64+0xc1/0xfd0
[ 133.402282][ T665] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 133.402286][ T665] RIP: 0033:0x7f07bf7271d7
[ 133.402293][ T665] 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
[ 133.402296][ T665] RSP: 002b:00007ffd62907888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 133.402301][ T665] RAX: ffffffffffffffda RBX: 00007ffd62907fb0 RCX: 00007f07bf7271d7
[ 133.402303][ T665] RDX: 0000000000000000 RSI: 00007ffd629078f0 RDI: 0000000000000005
[ 133.402304][ T665] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 133.402306][ T665] R10: 00007f07bf623f60 R11: 0000000000000246 R12: 0000000000000002
[ 133.402308][ T665] R13: 00000000690deb16 R14: 0000000000499600 R15: 0000000000000000
[ 133.402314][ T665]
[ 133.402316][ T665]
[ 133.416939][ T665] Allocated by task 393:
[ 133.417238][ T665] kasan_save_stack+0x24/0x40
[ 133.417430][ T665] kasan_save_track+0x14/0x30
[ 133.417610][ T665] __kasan_kmalloc+0x7b/0x90
[ 133.417800][ T665] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 133.418118][ T665] alloc_netdev_mqs+0x7d/0x1370
[ 133.418321][ T665] rtnl_create_link+0xa9e/0xe20
[ 133.418507][ T665] rtnl_newlink_create+0x203/0x770
[ 133.418696][ T665] __rtnl_newlink+0x231/0xa30
[ 133.419011][ T665] rtnl_newlink+0x693/0xa60
[ 133.419212][ T665] rtnetlink_rcv_msg+0x709/0xc00
[ 133.419412][ T665] netlink_rcv_skb+0x121/0x340
[ 133.419594][ T665] netlink_unicast+0x4aa/0x780
[ 133.419894][ T665] netlink_sendmsg+0x714/0xbd0
[ 133.420103][ T665] ____sys_sendmsg+0x3dd/0x890
[ 133.420303][ T665] ___sys_sendmsg+0xed/0x170
[ 133.420496][ T665] __sys_sendmsg+0x10b/0x1a0
[ 133.420784][ T665] do_syscall_64+0xc1/0xfd0
[ 133.420993][ T665] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 133.421253][ T665]
[ 133.421346][ T665] Freed by task 665:
[ 133.421574][ T665] kasan_save_stack+0x24/0x40
[ 133.421758][ T665] kasan_save_track+0x14/0x30
[ 133.421975][ T665] __kasan_save_free_info+0x3b/0x60
[ 133.422256][ T665] __kasan_slab_free+0x3f/0x60
[ 133.422533][ T665] kfree+0x21d/0x540
[ 133.422672][ T665] device_release+0x9c/0x210
[ 133.422866][ T665] kobject_cleanup+0xfe/0x360
[ 133.423111][ T665] netdev_run_todo+0x81f/0xc60
[ 133.423323][ T665] rtnl_dellink+0x350/0xa30
[ 133.423509][ T665] rtnetlink_rcv_msg+0x709/0xc00
[ 133.423689][ T665] netlink_rcv_skb+0x121/0x340
[ 133.423895][ T665] netlink_unicast+0x4aa/0x780
[ 133.424122][ T665] netlink_sendmsg+0x714/0xbd0
[ 133.424418][ T665] ____sys_sendmsg+0x3dd/0x890
[ 133.424622][ T665] ___sys_sendmsg+0xed/0x170
[ 133.424817][ T665] __sys_sendmsg+0x10b/0x1a0
[ 133.425025][ T665] do_syscall_64+0xc1/0xfd0
[ 133.425385][ T665] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 133.425612][ T665]
[ 133.425710][ T665] The buggy address belongs to the object at ffff888009f9c000
[ 133.425710][ T665] which belongs to the cache kmalloc-4k of size 4096
[ 133.426324][ T665] The buggy address is located 1708 bytes inside of
[ 133.426324][ T665] freed 4096-byte region [ffff888009f9c000, ffff888009f9d000)
[ 133.426751][ T665]
[ 133.426968][ T665] The buggy address belongs to the physical page:
[ 133.427242][ T665] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9f98
[ 133.427549][ T665] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 133.427938][ T665] flags: 0x80000000000040(head|node=0|zone=1)
[ 133.428211][ T665] page_type: f5(slab)
[ 133.428353][ T665] raw: 0080000000000040 ffff888001043700 ffffea000007fc10 ffffea0000393410
[ 133.428819][ T665] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 133.429324][ T665] head: 0080000000000040 ffff888001043700 ffffea000007fc10 ffffea0000393410
[ 133.429675][ T665] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 133.430201][ T665] head: 0080000000000003 ffffea000027e601 00000000ffffffff 00000000ffffffff
[ 133.430495][ T665] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 133.430976][ T665] page dumped because: kasan: bad access detected
[ 133.431243][ T665]
[ 133.431343][ T665] Memory state around the buggy address:
[ 133.431517][ T665] ffff888009f9c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 133.431935][ T665] ffff888009f9c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 133.432308][ T665] >ffff888009f9c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 133.432671][ T665] ^
[ 133.432868][ T665] ffff888009f9c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 133.433218][ T665] ffff888009f9c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 133.433577][ T665] ==================================================================
[ 133.434255][ T665] Disabling lock debugging due to kernel taint
[ 133.434525][ T665] ------------[ cut here ]------------
[ 133.434700][ T665] refcount_t: underflow; use-after-free.
[ 133.435021][ T665] WARNING: CPU: 1 PID: 665 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 133.435593][ T665] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth
[ 133.436049][ T665] CPU: 1 UID: 0 PID: 665 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 133.436457][ T665] Tainted: [B]=BAD_PAGE
[ 133.436600][ T665] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 133.436836][ T665] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 133.437128][ T665] 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 a2 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
[ 133.437857][ T665] RSP: 0018:ffffc9000102f1f0 EFLAGS: 00010286
[ 133.438329][ T665] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 133.438620][ T665] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 133.438944][ T665] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff46be134
[ 133.439390][ T665] R10: 0000000000000003 R11: ffffc9000102ed80 R12: 0000000000000001
[ 133.439690][ T665] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 133.440117][ T665] FS: 00007f07bf559800(0000) GS:ffff88808be72000(0000) knlGS:0000000000000000
[ 133.440488][ T665] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 133.440731][ T665] CR2: 00000000004e7438 CR3: 000000000a8bc001 CR4: 0000000000772ef0
[ 133.441164][ T665] PKRU: 55555554
[ 133.441327][ T665] Call Trace:
[ 133.441474][ T665]
[ 133.441574][ T665] netdev_run_todo+0x5f0/0xc60
[ 133.441776][ T665] ? dev_ingress_queue_create+0x190/0x190
[ 133.442118][ T665] ? generic_xdp_install+0x410/0x410
[ 133.442338][ T665] ? vrf_dellink+0xff/0x150 [vrf]
[ 133.442537][ T665] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 133.442789][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.443123][ T665] rtnl_dellink+0x350/0xa30
[ 133.443350][ T665] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 133.443618][ T665] ? find_held_lock+0x2b/0x80
[ 133.443938][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.444167][ T665] ? find_held_lock+0x2b/0x80
[ 133.444372][ T665] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 133.444562][ T665] ? __lock_release+0x5d/0x170
[ 133.444863][ T665] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 133.445152][ T665] rtnetlink_rcv_msg+0x709/0xc00
[ 133.445367][ T665] ? rtnl_port_fill+0x850/0x850
[ 133.445569][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.445881][ T665] netlink_rcv_skb+0x121/0x340
[ 133.446104][ T665] ? rtnl_port_fill+0x850/0x850
[ 133.446322][ T665] ? netlink_ack+0xdd0/0xdd0
[ 133.446523][ T665] ? netlink_deliver_tap+0x13e/0x340
[ 133.446819][ T665] ? netlink_deliver_tap+0xc3/0x340
[ 133.447041][ T665] netlink_unicast+0x4aa/0x780
[ 133.447292][ T665] ? netlink_attachskb+0x810/0x810
[ 133.447487][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.447778][ T665] netlink_sendmsg+0x714/0xbd0
[ 133.447991][ T665] ? netlink_unicast+0x780/0x780
[ 133.448210][ T665] ? __import_iovec+0x230/0x3b0
[ 133.448397][ T665] ? netlink_unicast+0x780/0x780
[ 133.448706][ T665] ____sys_sendmsg+0x3dd/0x890
[ 133.448987][ T665] ? get_timestamp.constprop.0+0x380/0x380
[ 133.449289][ T665] ? __copy_msghdr+0x3c0/0x3c0
[ 133.449505][ T665] ___sys_sendmsg+0xed/0x170
[ 133.449808][ T665] ? kasan_record_aux_stack+0x8c/0xa0
[ 133.449990][ T665] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 133.450312][ T665] ? copy_msghdr_from_user+0x110/0x110
[ 133.450477][ T665] ? find_held_lock+0x2b/0x80
[ 133.450730][ T665] ? __lock_acquire+0x449/0x7e0
[ 133.450940][ T665] ? find_held_lock+0x2b/0x80
[ 133.451130][ T665] ? __virt_addr_valid+0x22a/0x450
[ 133.451432][ T665] ? __lock_release+0x5d/0x170
[ 133.451597][ T665] __sys_sendmsg+0x10b/0x1a0
[ 133.451754][ T665] ? __call_rcu_common.constprop.0+0x318/0x630
[ 133.451978][ T665] ? __sys_sendmsg_sock+0x20/0x20
[ 133.452266][ T665] ? rcu_is_watching+0x12/0xb0
[ 133.452447][ T665] do_syscall_64+0xc1/0xfd0
[ 133.452617][ T665] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 133.452825][ T665] RIP: 0033:0x7f07bf7271d7
[ 133.453144][ T665] 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
[ 133.453900][ T665] RSP: 002b:00007ffd62907888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 133.454232][ T665] RAX: ffffffffffffffda RBX: 00007ffd62907fb0 RCX: 00007f07bf7271d7
[ 133.454520][ T665] RDX: 0000000000000000 RSI: 00007ffd629078f0 RDI: 0000000000000005
[ 133.454907][ T665] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 133.455213][ T665] R10: 00007f07bf623f60 R11: 0000000000000246 R12: 0000000000000002
[ 133.455478][ T665] R13: 00000000690deb16 R14: 0000000000499600 R15: 0000000000000000
[ 133.455832][ T665]
[ 133.455992][ T665] irq event stamp: 48923
[ 133.456139][ T665] hardirqs last enabled at (48923): [] finish_task_switch.isra.0+0x245/0x960
[ 133.456617][ T665] hardirqs last disabled at (48922): [] __schedule+0x94a/0x1b10
[ 133.457000][ T665] softirqs last enabled at (48044): [] handle_softirqs+0x352/0x610
[ 133.457428][ T665] softirqs last disabled at (48039): [] irq_exit_rcu+0xab/0x100
[ 133.457717][ T665] ---[ end trace 0000000000000000 ]---