[ 17.382034][ T275] ip (275) used greatest stack depth: 23680 bytes left
[ 19.676746][ T309] ==================================================================
[ 19.677059][ T309] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 19.677341][ T309] Read of size 1 at addr ffff8880085d46c4 by task ip/309
[ 19.677594][ T309]
[ 19.677694][ T309] CPU: 1 UID: 0 PID: 309 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 19.677698][ T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.677703][ T309] Call Trace:
[ 19.677706][ T309]
[ 19.677708][ T309] dump_stack_lvl+0x82/0xc0
[ 19.677724][ T309] print_address_description.constprop.0+0x2c/0x3a0
[ 19.677752][ T309] ? kobject_put+0xbb/0xd0
[ 19.677756][ T309] print_report+0xb4/0x270
[ 19.677759][ T309] ? kobject_put+0xbb/0xd0
[ 19.677762][ T309] ? kasan_addr_to_slab+0x21/0x70
[ 19.677766][ T309] ? kobject_put+0xbb/0xd0
[ 19.677769][ T309] kasan_report+0xca/0x100
[ 19.677773][ T309] ? kobject_put+0xbb/0xd0
[ 19.677778][ T309] kobject_put+0xbb/0xd0
[ 19.677782][ T309] netdev_run_todo+0x5f0/0xc60
[ 19.677792][ T309] ? __rtnl_newlink+0x231/0xa30
[ 19.677796][ T309] ? generic_xdp_install+0x410/0x410
[ 19.677804][ T309] rtnl_newlink+0x6c6/0xa60
[ 19.677809][ T309] ? __rtnl_newlink+0xa30/0xa30
[ 19.677816][ T309] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 19.677819][ T309] ? __lock_release+0x5d/0x170
[ 19.677830][ T309] ? __rtnl_newlink+0xa30/0xa30
[ 19.677833][ T309] rtnetlink_rcv_msg+0x709/0xc00
[ 19.677838][ T309] ? rtnl_port_fill+0x890/0x890
[ 19.677841][ T309] ? __lock_acquire+0x449/0x7e0
[ 19.677847][ T309] netlink_rcv_skb+0x121/0x340
[ 19.677853][ T309] ? rtnl_port_fill+0x890/0x890
[ 19.677857][ T309] ? netlink_ack+0xdf0/0xdf0
[ 19.677863][ T309] ? netlink_deliver_tap+0x13e/0x340
[ 19.677866][ T309] ? netlink_deliver_tap+0xc3/0x340
[ 19.677869][ T309] netlink_unicast+0x4aa/0x780
[ 19.677873][ T309] ? netlink_attachskb+0x810/0x810
[ 19.677876][ T309] ? __lock_acquire+0x449/0x7e0
[ 19.677881][ T309] netlink_sendmsg+0x714/0xbd0
[ 19.677885][ T309] ? netlink_unicast+0x780/0x780
[ 19.677888][ T309] ? __import_iovec+0x230/0x3b0
[ 19.677900][ T309] ? netlink_unicast+0x780/0x780
[ 19.677903][ T309] ____sys_sendmsg+0x3dd/0x890
[ 19.677907][ T309] ? get_timestamp.constprop.0+0x370/0x370
[ 19.677910][ T309] ? __copy_msghdr+0x3c0/0x3c0
[ 19.677915][ T309] ? __lock_release+0x5d/0x170
[ 19.677918][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.677925][ T309] ___sys_sendmsg+0xed/0x170
[ 19.677928][ T309] ? __debug_check_no_obj_freed+0x252/0x520
[ 19.677936][ T309] ? copy_msghdr_from_user+0x110/0x110
[ 19.677940][ T309] ? debug_objects_oom+0x160/0x160
[ 19.677944][ T309] ? trace_rcu_segcb_stats+0x102/0x210
[ 19.677949][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.677952][ T309] ? kasan_quarantine_put+0xf9/0x210
[ 19.677956][ T309] ? lockdep_hardirqs_on+0x7c/0x110
[ 19.677966][ T309] ? kmem_cache_free+0x22b/0x4b0
[ 19.677972][ T309] ? do_sys_openat2+0xef/0x160
[ 19.677977][ T309] ? do_sys_openat2+0xef/0x160
[ 19.677982][ T309] __sys_sendmsg+0x10b/0x1a0
[ 19.677986][ T309] ? __sys_sendmsg_sock+0x20/0x20
[ 19.677992][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.677997][ T309] do_syscall_64+0xc1/0xfd0
[ 19.678002][ T309] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.678014][ T309] RIP: 0033:0x7fa41aa2e1d7
[ 19.678027][ T309] 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
[ 19.678034][ T309] RSP: 002b:00007ffe1df33f88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 19.678044][ T309] RAX: ffffffffffffffda RBX: 00007ffe1df346b0 RCX: 00007fa41aa2e1d7
[ 19.678046][ T309] RDX: 0000000000000000 RSI: 00007ffe1df33ff0 RDI: 0000000000000005
[ 19.678048][ T309] RBP: 0000000000000002 R08: 0000000000000044 R09: 0000000000000000
[ 19.678050][ T309] R10: 00007fa41a925770 R11: 0000000000000246 R12: 00007ffe1df346c8
[ 19.678052][ T309] R13: 00000000690df603 R14: 0000000000499600 R15: 00007ffe1df340d8
[ 19.678058][ T309]
[ 19.678060][ T309]
[ 19.691565][ T309] Allocated by task 309:
[ 19.691709][ T309] kasan_save_stack+0x24/0x40
[ 19.691912][ T309] kasan_save_track+0x14/0x30
[ 19.692094][ T309] __kasan_kmalloc+0x7b/0x90
[ 19.692292][ T309] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 19.692474][ T309] alloc_netdev_mqs+0x7d/0x1370
[ 19.692670][ T309] rtnl_create_link+0xa9e/0xe20
[ 19.692837][ T309] rtnl_newlink_create+0x203/0x8f0
[ 19.693026][ T309] __rtnl_newlink+0x231/0xa30
[ 19.693197][ T309] rtnl_newlink+0x693/0xa60
[ 19.693377][ T309] rtnetlink_rcv_msg+0x709/0xc00
[ 19.693561][ T309] netlink_rcv_skb+0x121/0x340
[ 19.693828][ T309] netlink_unicast+0x4aa/0x780
[ 19.694035][ T309] netlink_sendmsg+0x714/0xbd0
[ 19.694211][ T309] ____sys_sendmsg+0x3dd/0x890
[ 19.694415][ T309] ___sys_sendmsg+0xed/0x170
[ 19.694655][ T309] __sys_sendmsg+0x10b/0x1a0
[ 19.694846][ T309] do_syscall_64+0xc1/0xfd0
[ 19.695050][ T309] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.695262][ T309]
[ 19.695357][ T309] Freed by task 309:
[ 19.695499][ T309] kasan_save_stack+0x24/0x40
[ 19.695693][ T309] kasan_save_track+0x14/0x30
[ 19.695917][ T309] __kasan_save_free_info+0x3b/0x60
[ 19.696140][ T309] __kasan_slab_free+0x3f/0x60
[ 19.696343][ T309] kfree+0x21d/0x540
[ 19.696515][ T309] device_release+0x9c/0x210
[ 19.696714][ T309] kobject_cleanup+0xfe/0x360
[ 19.696883][ T309] netdev_run_todo+0x81f/0xc60
[ 19.697051][ T309] rtnl_newlink+0x6c6/0xa60
[ 19.697224][ T309] rtnetlink_rcv_msg+0x709/0xc00
[ 19.697438][ T309] netlink_rcv_skb+0x121/0x340
[ 19.697637][ T309] netlink_unicast+0x4aa/0x780
[ 19.697808][ T309] netlink_sendmsg+0x714/0xbd0
[ 19.697981][ T309] ____sys_sendmsg+0x3dd/0x890
[ 19.698149][ T309] ___sys_sendmsg+0xed/0x170
[ 19.698319][ T309] __sys_sendmsg+0x10b/0x1a0
[ 19.698532][ T309] do_syscall_64+0xc1/0xfd0
[ 19.698720][ T309] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.698926][ T309]
[ 19.699009][ T309] The buggy address belongs to the object at ffff8880085d4000
[ 19.699009][ T309] which belongs to the cache kmalloc-4k of size 4096
[ 19.699443][ T309] The buggy address is located 1732 bytes inside of
[ 19.699443][ T309] freed 4096-byte region [ffff8880085d4000, ffff8880085d5000)
[ 19.699877][ T309]
[ 19.699962][ T309] The buggy address belongs to the physical page:
[ 19.700184][ T309] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x85d0
[ 19.700509][ T309] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 19.700839][ T309] flags: 0x80000000000040(head|node=0|zone=1)
[ 19.701064][ T309] page_type: f5(slab)
[ 19.701194][ T309] raw: 0080000000000040 ffff888001043700 ffffea000027ec10 ffffea00002fb610
[ 19.701512][ T309] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 19.701897][ T309] head: 0080000000000040 ffff888001043700 ffffea000027ec10 ffffea00002fb610
[ 19.702203][ T309] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 19.702551][ T309] head: 0080000000000003 ffffea0000217401 00000000ffffffff 00000000ffffffff
[ 19.702877][ T309] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 19.703207][ T309] page dumped because: kasan: bad access detected
[ 19.703446][ T309]
[ 19.703530][ T309] Memory state around the buggy address:
[ 19.703701][ T309] ffff8880085d4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.703981][ T309] ffff8880085d4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.704272][ T309] >ffff8880085d4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.704581][ T309] ^
[ 19.704817][ T309] ffff8880085d4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.705094][ T309] ffff8880085d4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 19.705384][ T309] ==================================================================
[ 19.706282][ T309] Disabling lock debugging due to kernel taint
[ 19.706567][ T309] ------------[ cut here ]------------
[ 19.707309][ T309] refcount_t: underflow; use-after-free.
[ 19.707654][ T309] WARNING: CPU: 1 PID: 309 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 19.708041][ T309] Modules linked in:
[ 19.708186][ T309] CPU: 1 UID: 0 PID: 309 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 19.708575][ T309] Tainted: [B]=BAD_PAGE
[ 19.708802][ T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.709023][ T309] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 19.709339][ T309] 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 65 a2 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
[ 19.710036][ T309] RSP: 0018:ffffc90000d974a0 EFLAGS: 00010282
[ 19.710280][ T309] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 19.710563][ T309] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 19.710928][ T309] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff46c0934
[ 19.711242][ T309] R10: 0000000000000003 R11: ffffc90000d97040 R12: 0000000000000001
[ 19.711512][ T309] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 19.711857][ T309] FS: 00007fa41a860800(0000) GS:ffff8880c2188000(0000) knlGS:0000000000000000
[ 19.712189][ T309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.712442][ T309] CR2: 00007ffe1df30ee0 CR3: 0000000008727004 CR4: 0000000000772ef0
[ 19.712795][ T309] PKRU: 55555554
[ 19.712963][ T309] Call Trace:
[ 19.713100][ T309]
[ 19.713196][ T309] netdev_run_todo+0x5f0/0xc60
[ 19.713405][ T309] ? __rtnl_newlink+0x231/0xa30
[ 19.713622][ T309] ? generic_xdp_install+0x410/0x410
[ 19.713900][ T309] rtnl_newlink+0x6c6/0xa60
[ 19.714091][ T309] ? __rtnl_newlink+0xa30/0xa30
[ 19.714277][ T309] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 19.714470][ T309] ? __lock_release+0x5d/0x170
[ 19.714669][ T309] ? __rtnl_newlink+0xa30/0xa30
[ 19.714913][ T309] rtnetlink_rcv_msg+0x709/0xc00
[ 19.715108][ T309] ? rtnl_port_fill+0x890/0x890
[ 19.715318][ T309] ? __lock_acquire+0x449/0x7e0
[ 19.715493][ T309] netlink_rcv_skb+0x121/0x340
[ 19.715692][ T309] ? rtnl_port_fill+0x890/0x890
[ 19.715934][ T309] ? netlink_ack+0xdf0/0xdf0
[ 19.716160][ T309] ? netlink_deliver_tap+0x13e/0x340
[ 19.716333][ T309] ? netlink_deliver_tap+0xc3/0x340
[ 19.716539][ T309] netlink_unicast+0x4aa/0x780
[ 19.716807][ T309] ? netlink_attachskb+0x810/0x810
[ 19.717003][ T309] ? __lock_acquire+0x449/0x7e0
[ 19.717210][ T309] netlink_sendmsg+0x714/0xbd0
[ 19.717443][ T309] ? netlink_unicast+0x780/0x780
[ 19.717635][ T309] ? __import_iovec+0x230/0x3b0
[ 19.717895][ T309] ? netlink_unicast+0x780/0x780
[ 19.718079][ T309] ____sys_sendmsg+0x3dd/0x890
[ 19.718266][ T309] ? get_timestamp.constprop.0+0x370/0x370
[ 19.718501][ T309] ? __copy_msghdr+0x3c0/0x3c0
[ 19.718778][ T309] ? __lock_release+0x5d/0x170
[ 19.718982][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.719166][ T309] ___sys_sendmsg+0xed/0x170
[ 19.719339][ T309] ? __debug_check_no_obj_freed+0x252/0x520
[ 19.719557][ T309] ? copy_msghdr_from_user+0x110/0x110
[ 19.719820][ T309] ? debug_objects_oom+0x160/0x160
[ 19.720058][ T309] ? trace_rcu_segcb_stats+0x102/0x210
[ 19.720261][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.720449][ T309] ? kasan_quarantine_put+0xf9/0x210
[ 19.720670][ T309] ? lockdep_hardirqs_on+0x7c/0x110
[ 19.720949][ T309] ? kmem_cache_free+0x22b/0x4b0
[ 19.721125][ T309] ? do_sys_openat2+0xef/0x160
[ 19.721325][ T309] ? do_sys_openat2+0xef/0x160
[ 19.721553][ T309] __sys_sendmsg+0x10b/0x1a0
[ 19.721809][ T309] ? __sys_sendmsg_sock+0x20/0x20
[ 19.721976][ T309] ? rcu_is_watching+0x12/0xb0
[ 19.722168][ T309] do_syscall_64+0xc1/0xfd0
[ 19.722411][ T309] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 19.722846][ T309] RIP: 0033:0x7fa41aa2e1d7
[ 19.723059][ T309] 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
[ 19.723887][ T309] RSP: 002b:00007ffe1df33f88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 19.724159][ T309] RAX: ffffffffffffffda RBX: 00007ffe1df346b0 RCX: 00007fa41aa2e1d7
[ 19.724441][ T309] RDX: 0000000000000000 RSI: 00007ffe1df33ff0 RDI: 0000000000000005
[ 19.724902][ T309] RBP: 0000000000000002 R08: 0000000000000044 R09: 0000000000000000
[ 19.725154][ T309] R10: 00007fa41a925770 R11: 0000000000000246 R12: 00007ffe1df346c8
[ 19.725452][ T309] R13: 00000000690df603 R14: 0000000000499600 R15: 00007ffe1df340d8
[ 19.725855][ T309]
[ 19.726011][ T309] irq event stamp: 52865
[ 19.726172][ T309] hardirqs last enabled at (52865): [] finish_task_switch.isra.0+0x245/0x960
[ 19.726672][ T309] hardirqs last disabled at (52864): [] __schedule+0x94a/0x1b10
[ 19.727115][ T309] softirqs last enabled at (52768): [] handle_softirqs+0x352/0x610
[ 19.727446][ T309] softirqs last disabled at (52761): [] irq_exit_rcu+0xab/0x100
[ 19.727842][ T309] ---[ end trace 0000000000000000 ]---