[ 16.674949][ T265] ip (265) used greatest stack depth: 24624 bytes left
[ 18.753594][ T291] ==================================================================
[ 18.753976][ T291] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 18.754290][ T291] Read of size 1 at addr ffff888008a016c4 by task ip/291
[ 18.754529][ T291]
[ 18.754636][ T291] CPU: 3 UID: 0 PID: 291 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.754642][ T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.754646][ T291] Call Trace:
[ 18.754650][ T291]
[ 18.754653][ T291] dump_stack_lvl+0x82/0xc0
[ 18.754658][ T291] print_address_description.constprop.0+0x2c/0x3a0
[ 18.754673][ T291] ? kobject_put+0xbb/0xd0
[ 18.754677][ T291] print_report+0xb4/0x270
[ 18.754681][ T291] ? kobject_put+0xbb/0xd0
[ 18.754684][ T291] ? kasan_addr_to_slab+0x21/0x70
[ 18.754687][ T291] ? kobject_put+0xbb/0xd0
[ 18.754690][ T291] kasan_report+0xca/0x100
[ 18.754694][ T291] ? kobject_put+0xbb/0xd0
[ 18.754700][ T291] kobject_put+0xbb/0xd0
[ 18.754703][ T291] netdev_run_todo+0x5f0/0xc60
[ 18.754715][ T291] ? dev_ingress_queue_create+0x190/0x190
[ 18.754719][ T291] ? generic_xdp_install+0x410/0x410
[ 18.754725][ T291] ? unregister_netdevice_many+0x20/0x20
[ 18.754731][ T291] rtnl_dellink+0x350/0xa30
[ 18.754737][ T291] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.754756][ T291] ? find_held_lock+0x2b/0x80
[ 18.754770][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.754775][ T291] ? find_held_lock+0x2b/0x80
[ 18.754779][ T291] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 18.754783][ T291] ? __lock_release+0x5d/0x170
[ 18.754786][ T291] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.754790][ T291] rtnetlink_rcv_msg+0x709/0xc00
[ 18.754794][ T291] ? rtnl_port_fill+0x890/0x890
[ 18.754798][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.754804][ T291] netlink_rcv_skb+0x121/0x340
[ 18.754810][ T291] ? rtnl_port_fill+0x890/0x890
[ 18.754814][ T291] ? netlink_ack+0xdf0/0xdf0
[ 18.754820][ T291] ? netlink_deliver_tap+0x13e/0x340
[ 18.754823][ T291] ? netlink_deliver_tap+0xc3/0x340
[ 18.754827][ T291] netlink_unicast+0x4aa/0x780
[ 18.754831][ T291] ? netlink_attachskb+0x810/0x810
[ 18.754834][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.754839][ T291] netlink_sendmsg+0x714/0xbd0
[ 18.754843][ T291] ? netlink_unicast+0x780/0x780
[ 18.754847][ T291] ? __import_iovec+0x230/0x3b0
[ 18.754857][ T291] ? netlink_unicast+0x780/0x780
[ 18.754861][ T291] ____sys_sendmsg+0x3dd/0x890
[ 18.754866][ T291] ? get_timestamp.constprop.0+0x370/0x370
[ 18.754869][ T291] ? __copy_msghdr+0x3c0/0x3c0
[ 18.754877][ T291] ___sys_sendmsg+0xed/0x170
[ 18.754879][ T291] ? kasan_record_aux_stack+0x8c/0xa0
[ 18.754884][ T291] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 18.754889][ T291] ? copy_msghdr_from_user+0x110/0x110
[ 18.754894][ T291] ? find_held_lock+0x2b/0x80
[ 18.754898][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.754903][ T291] ? find_held_lock+0x2b/0x80
[ 18.754907][ T291] ? __virt_addr_valid+0x22a/0x450
[ 18.754917][ T291] ? __lock_release+0x5d/0x170
[ 18.754922][ T291] __sys_sendmsg+0x10b/0x1a0
[ 18.754925][ T291] ? __call_rcu_common.constprop.0+0x318/0x630
[ 18.754927][ T291] ? __sys_sendmsg_sock+0x20/0x20
[ 18.754935][ T291] ? rcu_is_watching+0x12/0xb0
[ 18.754941][ T291] do_syscall_64+0xc1/0xfd0
[ 18.754947][ T291] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.754956][ T291] RIP: 0033:0x7f1893b601d7
[ 18.754962][ T291] 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
[ 18.754965][ T291] RSP: 002b:00007ffcc4afd578 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 18.754972][ T291] RAX: ffffffffffffffda RBX: 00007ffcc4afdca0 RCX: 00007f1893b601d7
[ 18.754974][ T291] RDX: 0000000000000000 RSI: 00007ffcc4afd5e0 RDI: 0000000000000005
[ 18.754977][ T291] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[ 18.754978][ T291] R10: 00007f1893a5cf60 R11: 0000000000000246 R12: 0000000000000001
[ 18.754980][ T291] R13: 00000000690df495 R14: 0000000000499600 R15: 0000000000000000
[ 18.754987][ T291]
[ 18.754988][ T291]
[ 18.769431][ T291] Allocated by task 265:
[ 18.769580][ T291] kasan_save_stack+0x24/0x40
[ 18.769786][ T291] kasan_save_track+0x14/0x30
[ 18.769982][ T291] __kasan_kmalloc+0x7b/0x90
[ 18.770178][ T291] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 18.770393][ T291] alloc_netdev_mqs+0x7d/0x1370
[ 18.770591][ T291] rtnl_create_link+0xa9e/0xe20
[ 18.770794][ T291] rtnl_newlink_create+0x203/0x8f0
[ 18.770990][ T291] __rtnl_newlink+0x231/0xa30
[ 18.771188][ T291] rtnl_newlink+0x693/0xa60
[ 18.771390][ T291] rtnetlink_rcv_msg+0x709/0xc00
[ 18.771587][ T291] netlink_rcv_skb+0x121/0x340
[ 18.771783][ T291] netlink_unicast+0x4aa/0x780
[ 18.771975][ T291] netlink_sendmsg+0x714/0xbd0
[ 18.772170][ T291] ____sys_sendmsg+0x3dd/0x890
[ 18.772383][ T291] ___sys_sendmsg+0xed/0x170
[ 18.772577][ T291] __sys_sendmsg+0x10b/0x1a0
[ 18.772768][ T291] do_syscall_64+0xc1/0xfd0
[ 18.772963][ T291] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.773212][ T291]
[ 18.773369][ T291] Freed by task 291:
[ 18.773591][ T291] kasan_save_stack+0x24/0x40
[ 18.773792][ T291] kasan_save_track+0x14/0x30
[ 18.773985][ T291] __kasan_save_free_info+0x3b/0x60
[ 18.774197][ T291] __kasan_slab_free+0x3f/0x60
[ 18.774396][ T291] kfree+0x21d/0x540
[ 18.774543][ T291] device_release+0x9c/0x210
[ 18.774744][ T291] kobject_cleanup+0xfe/0x360
[ 18.774937][ T291] netdev_run_todo+0x81f/0xc60
[ 18.775130][ T291] rtnl_dellink+0x350/0xa30
[ 18.775334][ T291] rtnetlink_rcv_msg+0x709/0xc00
[ 18.775527][ T291] netlink_rcv_skb+0x121/0x340
[ 18.775740][ T291] netlink_unicast+0x4aa/0x780
[ 18.775935][ T291] netlink_sendmsg+0x714/0xbd0
[ 18.776132][ T291] ____sys_sendmsg+0x3dd/0x890
[ 18.776336][ T291] ___sys_sendmsg+0xed/0x170
[ 18.776535][ T291] __sys_sendmsg+0x10b/0x1a0
[ 18.776728][ T291] do_syscall_64+0xc1/0xfd0
[ 18.776923][ T291] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.777167][ T291]
[ 18.777285][ T291] The buggy address belongs to the object at ffff888008a01000
[ 18.777285][ T291] which belongs to the cache kmalloc-4k of size 4096
[ 18.777761][ T291] The buggy address is located 1732 bytes inside of
[ 18.777761][ T291] freed 4096-byte region [ffff888008a01000, ffff888008a02000)
[ 18.778264][ T291]
[ 18.778418][ T291] The buggy address belongs to the physical page:
[ 18.778690][ T291] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8a00
[ 18.779040][ T291] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 18.779347][ T291] flags: 0x80000000000040(head|node=0|zone=1)
[ 18.779607][ T291] page_type: f5(slab)
[ 18.779766][ T291] raw: 0080000000000040 ffff888001043700 ffffea0000237a10 ffffea0000096810
[ 18.780124][ T291] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 18.780483][ T291] head: 0080000000000040 ffff888001043700 ffffea0000237a10 ffffea0000096810
[ 18.780831][ T291] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 18.781175][ T291] head: 0080000000000003 ffffea0000228001 00000000ffffffff 00000000ffffffff
[ 18.781532][ T291] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 18.781882][ T291] page dumped because: kasan: bad access detected
[ 18.782235][ T291]
[ 18.782335][ T291] Memory state around the buggy address:
[ 18.782526][ T291] ffff888008a01580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 18.782812][ T291] ffff888008a01600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 18.783201][ T291] >ffff888008a01680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 18.783487][ T291] ^
[ 18.783810][ T291] ffff888008a01700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 18.784094][ T291] ffff888008a01780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 18.784391][ T291] ==================================================================
[ 18.784835][ T291] Disabling lock debugging due to kernel taint
[ 18.785072][ T291] ------------[ cut here ]------------
[ 18.785262][ T291] refcount_t: underflow; use-after-free.
[ 18.785502][ T291] WARNING: CPU: 3 PID: 291 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 18.785979][ T291] Modules linked in:
[ 18.786135][ T291] CPU: 3 UID: 0 PID: 291 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.787265][ T291] Tainted: [B]=BAD_PAGE
[ 18.787495][ T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.787739][ T291] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 18.787991][ T291] 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 25 93 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
[ 18.788762][ T291] RSP: 0018:ffffc90000ce71f0 EFLAGS: 00010286
[ 18.789007][ T291] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 18.789359][ T291] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 18.789647][ T291] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff2840934
[ 18.789940][ T291] R10: 0000000000000003 R11: ffffc90000ce6d80 R12: 0000000000000001
[ 18.790435][ T291] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 18.790727][ T291] FS: 00007f1893992800(0000) GS:ffff8880d7a88000(0000) knlGS:0000000000000000
[ 18.791172][ T291] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.791535][ T291] CR2: 00000000004e5ae0 CR3: 000000000bc82004 CR4: 0000000000772ef0
[ 18.791927][ T291] PKRU: 55555554
[ 18.792129][ T291] Call Trace:
[ 18.792362][ T291]
[ 18.792517][ T291] netdev_run_todo+0x5f0/0xc60
[ 18.792808][ T291] ? dev_ingress_queue_create+0x190/0x190
[ 18.793113][ T291] ? generic_xdp_install+0x410/0x410
[ 18.793422][ T291] ? unregister_netdevice_many+0x20/0x20
[ 18.793728][ T291] rtnl_dellink+0x350/0xa30
[ 18.794032][ T291] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.794435][ T291] ? find_held_lock+0x2b/0x80
[ 18.794736][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.795038][ T291] ? find_held_lock+0x2b/0x80
[ 18.795359][ T291] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 18.795659][ T291] ? __lock_release+0x5d/0x170
[ 18.795970][ T291] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 18.796359][ T291] rtnetlink_rcv_msg+0x709/0xc00
[ 18.796661][ T291] ? rtnl_port_fill+0x890/0x890
[ 18.796961][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.797264][ T291] netlink_rcv_skb+0x121/0x340
[ 18.797587][ T291] ? rtnl_port_fill+0x890/0x890
[ 18.797890][ T291] ? netlink_ack+0xdf0/0xdf0
[ 18.798190][ T291] ? netlink_deliver_tap+0x13e/0x340
[ 18.798646][ T291] ? netlink_deliver_tap+0xc3/0x340
[ 18.798848][ T291] netlink_unicast+0x4aa/0x780
[ 18.799038][ T291] ? netlink_attachskb+0x810/0x810
[ 18.799228][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.799558][ T291] netlink_sendmsg+0x714/0xbd0
[ 18.799751][ T291] ? netlink_unicast+0x780/0x780
[ 18.799944][ T291] ? __import_iovec+0x230/0x3b0
[ 18.800132][ T291] ? netlink_unicast+0x780/0x780
[ 18.800515][ T291] ____sys_sendmsg+0x3dd/0x890
[ 18.800706][ T291] ? get_timestamp.constprop.0+0x370/0x370
[ 18.800939][ T291] ? __copy_msghdr+0x3c0/0x3c0
[ 18.801128][ T291] ___sys_sendmsg+0xed/0x170
[ 18.801340][ T291] ? kasan_record_aux_stack+0x8c/0xa0
[ 18.801533][ T291] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 18.801768][ T291] ? copy_msghdr_from_user+0x110/0x110
[ 18.801954][ T291] ? find_held_lock+0x2b/0x80
[ 18.802238][ T291] ? __lock_acquire+0x449/0x7e0
[ 18.802439][ T291] ? find_held_lock+0x2b/0x80
[ 18.802628][ T291] ? __virt_addr_valid+0x22a/0x450
[ 18.802829][ T291] ? __lock_release+0x5d/0x170
[ 18.803109][ T291] __sys_sendmsg+0x10b/0x1a0
[ 18.803301][ T291] ? __call_rcu_common.constprop.0+0x318/0x630
[ 18.803550][ T291] ? __sys_sendmsg_sock+0x20/0x20
[ 18.803739][ T291] ? rcu_is_watching+0x12/0xb0
[ 18.804021][ T291] do_syscall_64+0xc1/0xfd0
[ 18.804210][ T291] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.804490][ T291] RIP: 0033:0x7f1893b601d7
[ 18.804696][ T291] 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
[ 18.805475][ T291] RSP: 002b:00007ffcc4afd578 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 18.805871][ T291] RAX: ffffffffffffffda RBX: 00007ffcc4afdca0 RCX: 00007f1893b601d7
[ 18.806160][ T291] RDX: 0000000000000000 RSI: 00007ffcc4afd5e0 RDI: 0000000000000005
[ 18.806554][ T291] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[ 18.806839][ T291] R10: 00007f1893a5cf60 R11: 0000000000000246 R12: 0000000000000001
[ 18.807116][ T291] R13: 00000000690df495 R14: 0000000000499600 R15: 0000000000000000
[ 18.807529][ T291]
[ 18.807678][ T291] irq event stamp: 48887
[ 18.807819][ T291] hardirqs last enabled at (48887): [] __schedule+0x13c7/0x1b10
[ 18.808159][ T291] hardirqs last disabled at (48886): [] __schedule+0x94a/0x1b10
[ 18.808640][ T291] softirqs last enabled at (45904): [] handle_softirqs+0x352/0x610
[ 18.808978][ T291] softirqs last disabled at (45709): [] irq_exit_rcu+0xab/0x100
[ 18.809411][ T291] ---[ end trace 0000000000000000 ]---
[ 19.898393][ T308] ip (308) used greatest stack depth: 24488 bytes left