[ 18.987599][ T260] ==================================================================
[ 18.988108][ T260] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 18.988547][ T260] Read of size 1 at addr ffff88800efa96c4 by task ip/260
[ 18.988892][ T260]
[ 18.989034][ T260] CPU: 3 UID: 0 PID: 260 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.989045][ T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.989048][ T260] Call Trace:
[ 18.989053][ T260]
[ 18.989056][ T260] dump_stack_lvl+0x82/0xc0
[ 18.989066][ T260] print_address_description.constprop.0+0x2c/0x3a0
[ 18.989081][ T260] ? kobject_put+0xbb/0xd0
[ 18.989087][ T260] print_report+0xb4/0x270
[ 18.989093][ T260] ? kobject_put+0xbb/0xd0
[ 18.989098][ T260] ? kasan_addr_to_slab+0x21/0x70
[ 18.989104][ T260] ? kobject_put+0xbb/0xd0
[ 18.989109][ T260] kasan_report+0xca/0x100
[ 18.989116][ T260] ? kobject_put+0xbb/0xd0
[ 18.989125][ T260] kobject_put+0xbb/0xd0
[ 18.989131][ T260] netdev_run_todo+0x5f0/0xc60
[ 18.989142][ T260] ? dev_ingress_queue_create+0x190/0x190
[ 18.989148][ T260] ? generic_xdp_install+0x410/0x410
[ 18.989154][ T260] ? unregister_netdevice_many+0x20/0x20
[ 18.989160][ T260] ? __lock_acquire+0x449/0x7e0
[ 18.989172][ T260] rtnl_dellink+0x350/0xa30
[ 18.989180][ T260] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.989215][ T260] ? find_held_lock+0x2b/0x80
[ 18.989224][ T260] ? __lock_acquire+0x449/0x7e0
[ 18.989233][ T260] ? find_held_lock+0x2b/0x80
[ 18.989240][ T260] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 18.989244][ T260] ? __lock_release+0x5d/0x170
[ 18.989252][ T260] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.989258][ T260] rtnetlink_rcv_msg+0x709/0xc00
[ 18.989265][ T260] ? rtnl_port_fill+0x890/0x890
[ 18.989271][ T260] ? __lock_acquire+0x449/0x7e0
[ 18.989283][ T260] netlink_rcv_skb+0x121/0x340
[ 18.989291][ T260] ? rtnl_port_fill+0x890/0x890
[ 18.989298][ T260] ? netlink_ack+0xdf0/0xdf0
[ 18.989311][ T260] ? netlink_deliver_tap+0x13e/0x340
[ 18.989315][ T260] ? netlink_deliver_tap+0xc3/0x340
[ 18.989322][ T260] netlink_unicast+0x4aa/0x780
[ 18.989330][ T260] ? netlink_attachskb+0x810/0x810
[ 18.989336][ T260] ? __lock_acquire+0x449/0x7e0
[ 18.989345][ T260] netlink_sendmsg+0x714/0xbd0
[ 18.989353][ T260] ? netlink_unicast+0x780/0x780
[ 18.989359][ T260] ? __import_iovec+0x230/0x3b0
[ 18.989371][ T260] ? netlink_unicast+0x780/0x780
[ 18.989377][ T260] ____sys_sendmsg+0x3dd/0x890
[ 18.989384][ T260] ? get_timestamp.constprop.0+0x370/0x370
[ 18.989388][ T260] ? __copy_msghdr+0x3c0/0x3c0
[ 18.989401][ T260] ___sys_sendmsg+0xed/0x170
[ 18.989406][ T260] ? kasan_record_aux_stack+0x8c/0xa0
[ 18.989411][ T260] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 18.989420][ T260] ? copy_msghdr_from_user+0x110/0x110
[ 18.989429][ T260] ? find_held_lock+0x2b/0x80
[ 18.989437][ T260] ? __lock_acquire+0x449/0x7e0
[ 18.989446][ T260] ? find_held_lock+0x2b/0x80
[ 18.989453][ T260] ? __virt_addr_valid+0x22a/0x450
[ 18.989464][ T260] ? __lock_release+0x5d/0x170
[ 18.989475][ T260] __sys_sendmsg+0x10b/0x1a0
[ 18.989479][ T260] ? __call_rcu_common.constprop.0+0x318/0x630
[ 18.989484][ T260] ? __sys_sendmsg_sock+0x20/0x20
[ 18.989498][ T260] ? rcu_is_watching+0x12/0xb0
[ 18.989506][ T260] do_syscall_64+0xc1/0xfd0
[ 18.989514][ T260] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.989520][ T260] RIP: 0033:0x7f71997ac1d7
[ 18.989528][ T260] 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
[ 18.989533][ T260] RSP: 002b:00007ffdbb4ec828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 18.989541][ T260] RAX: ffffffffffffffda RBX: 00007ffdbb4ecf60 RCX: 00007f71997ac1d7
[ 18.989545][ T260] RDX: 0000000000000000 RSI: 00007ffdbb4ec890 RDI: 0000000000000003
[ 18.989548][ T260] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[ 18.989550][ T260] R10: 00007f71996a8510 R11: 0000000000000246 R12: 0000000000000001
[ 18.989554][ T260] R13: 00000000690df2eb R14: 0000000000499600 R15: 0000000000000000
[ 18.989566][ T260]
[ 18.989568][ T260]
[ 19.009209][ T260] Allocated by task 258:
[ 19.009460][ T260] kasan_save_stack+0x24/0x40
[ 19.009748][ T260] kasan_save_track+0x14/0x30
[ 19.010036][ T260] __kasan_kmalloc+0x7b/0x90
[ 19.010320][ T260] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 19.010605][ T260] alloc_netdev_mqs+0x7d/0x1370
[ 19.010883][ T260] rtnl_create_link+0xa9e/0xe20
[ 19.011176][ T260] rtnl_newlink_create+0x203/0x8f0
[ 19.011458][ T260] __rtnl_newlink+0x231/0xa30
[ 19.011735][ T260] rtnl_newlink+0x693/0xa60
[ 19.012027][ T260] rtnetlink_rcv_msg+0x709/0xc00
[ 19.012320][ T260] netlink_rcv_skb+0x121/0x340
[ 19.012631][ T260] netlink_unicast+0x4aa/0x780
[ 19.012911][ T260] netlink_sendmsg+0x714/0xbd0
[ 19.013178][ T260] ____sys_sendmsg+0x3dd/0x890
[ 19.013446][ T260] ___sys_sendmsg+0xed/0x170
[ 19.013609][ T260] __sys_sendmsg+0x10b/0x1a0
[ 19.013770][ T260] do_syscall_64+0xc1/0xfd0
[ 19.013955][ T260] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.014218][ T260]
[ 19.014332][ T260] Freed by task 260:
[ 19.014487][ T260] kasan_save_stack+0x24/0x40
[ 19.014660][ T260] kasan_save_track+0x14/0x30
[ 19.014840][ T260] __kasan_save_free_info+0x3b/0x60
[ 19.015036][ T260] __kasan_slab_free+0x3f/0x60
[ 19.015269][ T260] kfree+0x21d/0x540
[ 19.015415][ T260] device_release+0x9c/0x210
[ 19.015680][ T260] kobject_cleanup+0xfe/0x360
[ 19.015950][ T260] netdev_run_todo+0x81f/0xc60
[ 19.016226][ T260] rtnl_dellink+0x350/0xa30
[ 19.016506][ T260] rtnetlink_rcv_msg+0x709/0xc00
[ 19.016780][ T260] netlink_rcv_skb+0x121/0x340
[ 19.017058][ T260] netlink_unicast+0x4aa/0x780
[ 19.017338][ T260] netlink_sendmsg+0x714/0xbd0
[ 19.017615][ T260] ____sys_sendmsg+0x3dd/0x890
[ 19.017888][ T260] ___sys_sendmsg+0xed/0x170
[ 19.018162][ T260] __sys_sendmsg+0x10b/0x1a0
[ 19.018446][ T260] do_syscall_64+0xc1/0xfd0
[ 19.018720][ T260] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.019066][ T260]
[ 19.019222][ T260] The buggy address belongs to the object at ffff88800efa9000
[ 19.019222][ T260] which belongs to the cache kmalloc-4k of size 4096
[ 19.019903][ T260] The buggy address is located 1732 bytes inside of
[ 19.019903][ T260] freed 4096-byte region [ffff88800efa9000, ffff88800efaa000)
[ 19.020579][ T260]
[ 19.020729][ T260] The buggy address belongs to the physical page:
[ 19.021121][ T260] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xefa8
[ 19.021620][ T260] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 19.022068][ T260] flags: 0x80000000000040(head|node=0|zone=1)
[ 19.022467][ T260] page_type: f5(slab)
[ 19.022698][ T260] raw: 0080000000000040 ffff888001043700 ffffea0000394410 ffffea0000301010
[ 19.023220][ T260] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 19.023723][ T260] head: 0080000000000040 ffff888001043700 ffffea0000394410 ffffea0000301010
[ 19.024243][ T260] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 19.024744][ T260] head: 0080000000000003 ffffea00003bea01 00000000ffffffff 00000000ffffffff
[ 19.025258][ T260] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 19.025657][ T260] page dumped because: kasan: bad access detected
[ 19.025971][ T260]
[ 19.026056][ T260] Memory state around the buggy address:
[ 19.026263][ T260] ffff88800efa9580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.026548][ T260] ffff88800efa9600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.027038][ T260] >ffff88800efa9680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.027447][ T260] ^
[ 19.027957][ T260] ffff88800efa9700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.028370][ T260] ffff88800efa9780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.028820][ T260] ==================================================================
[ 19.029992][ T260] Disabling lock debugging due to kernel taint
[ 19.030289][ T260] ------------[ cut here ]------------
[ 19.030461][ T260] refcount_t: underflow; use-after-free.
[ 19.030705][ T260] WARNING: CPU: 2 PID: 260 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 19.031064][ T260] Modules linked in:
[ 19.031219][ T260] CPU: 2 UID: 0 PID: 260 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 19.031564][ T260] Tainted: [B]=BAD_PAGE
[ 19.031719][ T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.031995][ T260] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 19.032234][ T260] Code: cc 38 03 80 fb 01 0f 87 29 33 d7 fe 83 e3 01 0f 85 51 ff ff ff c6 05 17 cc 38 03 01 90 48 c7 c7 40 ba 85 9a e8 62 d6 16 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 c0 9d a0 ff e9 ba fe ff ff
[ 19.032827][ T260] RSP: 0018:ffffc90000b471f0 EFLAGS: 00010286
[ 19.033085][ T260] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 19.033347][ T260] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 19.033612][ T260] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff3700934
[ 19.033885][ T260] R10: 0000000000000003 R11: ffffc90000b46d80 R12: 0000000000000001
[ 19.034175][ T260] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 19.034434][ T260] FS: 00007f71995de800(0000) GS:ffff8880ca008000(0000) knlGS:0000000000000000
[ 19.034744][ T260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.035001][ T260] CR2: 00000000004a00a4 CR3: 00000000062b5001 CR4: 0000000000772ef0
[ 19.035268][ T260] PKRU: 55555554
[ 19.035410][ T260] Call Trace:
[ 19.035552][ T260]
[ 19.035657][ T260] netdev_run_todo+0x5f0/0xc60
[ 19.035852][ T260] ? dev_ingress_queue_create+0x190/0x190
[ 19.036074][ T260] ? generic_xdp_install+0x410/0x410
[ 19.036259][ T260] ? unregister_netdevice_many+0x20/0x20
[ 19.036438][ T260] ? __lock_acquire+0x449/0x7e0
[ 19.036623][ T260] rtnl_dellink+0x350/0xa30
[ 19.036850][ T260] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 19.037121][ T260] ? find_held_lock+0x2b/0x80
[ 19.037312][ T260] ? __lock_acquire+0x449/0x7e0
[ 19.037500][ T260] ? find_held_lock+0x2b/0x80
[ 19.037681][ T260] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 19.037866][ T260] ? __lock_release+0x5d/0x170
[ 19.038073][ T260] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 19.038386][ T260] rtnetlink_rcv_msg+0x709/0xc00
[ 19.038566][ T260] ? rtnl_port_fill+0x890/0x890
[ 19.038788][ T260] ? __lock_acquire+0x449/0x7e0
[ 19.039028][ T260] netlink_rcv_skb+0x121/0x340
[ 19.039307][ T260] ? rtnl_port_fill+0x890/0x890
[ 19.039486][ T260] ? netlink_ack+0xdf0/0xdf0
[ 19.039667][ T260] ? netlink_deliver_tap+0x13e/0x340
[ 19.039848][ T260] ? netlink_deliver_tap+0xc3/0x340
[ 19.040059][ T260] netlink_unicast+0x4aa/0x780
[ 19.040238][ T260] ? netlink_attachskb+0x810/0x810
[ 19.040423][ T260] ? __lock_acquire+0x449/0x7e0
[ 19.040602][ T260] netlink_sendmsg+0x714/0xbd0
[ 19.040887][ T260] ? netlink_unicast+0x780/0x780
[ 19.041091][ T260] ? __import_iovec+0x230/0x3b0
[ 19.041271][ T260] ? netlink_unicast+0x780/0x780
[ 19.041452][ T260] ____sys_sendmsg+0x3dd/0x890
[ 19.041724][ T260] ? get_timestamp.constprop.0+0x370/0x370
[ 19.041992][ T260] ? __copy_msghdr+0x3c0/0x3c0
[ 19.042184][ T260] ___sys_sendmsg+0xed/0x170
[ 19.042364][ T260] ? kasan_record_aux_stack+0x8c/0xa0
[ 19.042636][ T260] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 19.042853][ T260] ? copy_msghdr_from_user+0x110/0x110
[ 19.043077][ T260] ? find_held_lock+0x2b/0x80
[ 19.043257][ T260] ? __lock_acquire+0x449/0x7e0
[ 19.043528][ T260] ? find_held_lock+0x2b/0x80
[ 19.043751][ T260] ? __virt_addr_valid+0x22a/0x450
[ 19.043967][ T260] ? __lock_release+0x5d/0x170
[ 19.044169][ T260] __sys_sendmsg+0x10b/0x1a0
[ 19.044490][ T260] ? __call_rcu_common.constprop.0+0x318/0x630
[ 19.044735][ T260] ? __sys_sendmsg_sock+0x20/0x20
[ 19.044972][ T260] ? rcu_is_watching+0x12/0xb0
[ 19.045251][ T260] do_syscall_64+0xc1/0xfd0
[ 19.045431][ T260] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.045654][ T260] RIP: 0033:0x7f71997ac1d7
[ 19.045846][ T260] 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
[ 19.046487][ T260] RSP: 002b:00007ffdbb4ec828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 19.046848][ T260] RAX: ffffffffffffffda RBX: 00007ffdbb4ecf60 RCX: 00007f71997ac1d7
[ 19.047148][ T260] RDX: 0000000000000000 RSI: 00007ffdbb4ec890 RDI: 0000000000000003
[ 19.047423][ T260] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[ 19.047787][ T260] R10: 00007f71996a8510 R11: 0000000000000246 R12: 0000000000000001
[ 19.048070][ T260] R13: 00000000690df2eb R14: 0000000000499600 R15: 0000000000000000
[ 19.048340][ T260]
[ 19.048574][ T260] irq event stamp: 61059
[ 19.048719][ T260] hardirqs last enabled at (61059): [] finish_task_switch.isra.0+0x245/0x960
[ 19.049070][ T260] hardirqs last disabled at (61058): [] __schedule+0x94a/0x1b10
[ 19.049468][ T260] softirqs last enabled at (59816): [] unregister_netdevice_many_notify+0x714/0x1c90
[ 19.049807][ T260] softirqs last disabled at (59814): [] dev_mc_flush+0x54/0x90
[ 19.050126][ T260] ---[ end trace 0000000000000000 ]---
[ 21.506677][ T275] MACsec IEEE 802.1AE
[ 22.989458][ T288] gre: GRE over IPv4 demultiplexer driver
[ 23.004885][ T288] ip_gre: GRE over IPv4 tunneling driver
[ 24.182538][ T304] ip6_gre: GRE over IPv6 tunneling driver
[ 25.636357][ T318] IPsec XFRM device driver
[ 40.218651][ T448] CAN device driver interface
[ 40.226343][ T448] vxcan: Virtual CAN Tunnel driver