[ 18.048778][ T253] ip (253) used greatest stack depth: 24560 bytes left
[ 45.946088][ T422] Initializing XFRM netlink socket
[ 52.947334][ T446] ==================================================================
[ 52.947903][ T446] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 52.948332][ T446] Read of size 1 at addr ffff88800fb5c6ac by task ip/446
[ 52.948708][ T446]
[ 52.948850][ T446] CPU: 0 UID: 0 PID: 446 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 52.948858][ T446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.948861][ T446] Call Trace:
[ 52.948864][ T446]
[ 52.948867][ T446] dump_stack_lvl+0x82/0xc0
[ 52.948876][ T446] print_address_description.constprop.0+0x2c/0x3a0
[ 52.948886][ T446] ? kobject_put+0xbb/0xd0
[ 52.948892][ T446] print_report+0xb4/0x270
[ 52.948897][ T446] ? kobject_put+0xbb/0xd0
[ 52.948901][ T446] ? kasan_addr_to_slab+0x21/0x70
[ 52.948905][ T446] ? kobject_put+0xbb/0xd0
[ 52.948909][ T446] kasan_report+0xca/0x100
[ 52.948914][ T446] ? kobject_put+0xbb/0xd0
[ 52.948923][ T446] kobject_put+0xbb/0xd0
[ 52.948929][ T446] netdev_run_todo+0x5f0/0xc60
[ 52.948936][ T446] ? dev_ingress_queue_create+0x190/0x190
[ 52.948941][ T446] ? generic_xdp_install+0x410/0x410
[ 52.948949][ T446] ? vrf_dellink+0xff/0x150 [vrf]
[ 52.948959][ T446] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 52.948967][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.948979][ T446] rtnl_dellink+0x350/0xa30
[ 52.948987][ T446] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 52.949023][ T446] ? find_held_lock+0x2b/0x80
[ 52.949031][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.949042][ T446] ? find_held_lock+0x2b/0x80
[ 52.949048][ T446] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 52.949052][ T446] ? __lock_release+0x5d/0x170
[ 52.949061][ T446] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 52.949067][ T446] rtnetlink_rcv_msg+0x709/0xc00
[ 52.949074][ T446] ? rtnl_port_fill+0x850/0x850
[ 52.949079][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.949092][ T446] netlink_rcv_skb+0x121/0x340
[ 52.949099][ T446] ? rtnl_port_fill+0x850/0x850
[ 52.949105][ T446] ? netlink_ack+0xdd0/0xdd0
[ 52.949117][ T446] ? netlink_deliver_tap+0x13e/0x340
[ 52.949122][ T446] ? netlink_deliver_tap+0xc3/0x340
[ 52.949128][ T446] netlink_unicast+0x4aa/0x780
[ 52.949134][ T446] ? netlink_attachskb+0x810/0x810
[ 52.949140][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.949147][ T446] netlink_sendmsg+0x714/0xbd0
[ 52.949154][ T446] ? netlink_unicast+0x780/0x780
[ 52.949160][ T446] ? __import_iovec+0x230/0x3b0
[ 52.949169][ T446] ? netlink_unicast+0x780/0x780
[ 52.949175][ T446] ____sys_sendmsg+0x3dd/0x890
[ 52.949183][ T446] ? get_timestamp.constprop.0+0x380/0x380
[ 52.949188][ T446] ? __copy_msghdr+0x3c0/0x3c0
[ 52.949201][ T446] ___sys_sendmsg+0xed/0x170
[ 52.949206][ T446] ? kasan_record_aux_stack+0x8c/0xa0
[ 52.949211][ T446] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 52.949219][ T446] ? copy_msghdr_from_user+0x110/0x110
[ 52.949227][ T446] ? find_held_lock+0x2b/0x80
[ 52.949234][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.949244][ T446] ? find_held_lock+0x2b/0x80
[ 52.949250][ T446] ? __virt_addr_valid+0x22a/0x450
[ 52.949256][ T446] ? __lock_release+0x5d/0x170
[ 52.949267][ T446] __sys_sendmsg+0x10b/0x1a0
[ 52.949272][ T446] ? __call_rcu_common.constprop.0+0x318/0x630
[ 52.949279][ T446] ? __sys_sendmsg_sock+0x20/0x20
[ 52.949292][ T446] ? rcu_is_watching+0x12/0xb0
[ 52.949298][ T446] do_syscall_64+0xc1/0xfd0
[ 52.949306][ T446] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 52.949312][ T446] RIP: 0033:0x7efe097de1d7
[ 52.949319][ T446] 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
[ 52.949324][ T446] RSP: 002b:00007ffe685bfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 52.949331][ T446] RAX: ffffffffffffffda RBX: 00007ffe685c03b0 RCX: 00007efe097de1d7
[ 52.949334][ T446] RDX: 0000000000000000 RSI: 00007ffe685bfcf0 RDI: 0000000000000005
[ 52.949337][ T446] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 52.949340][ T446] R10: 00007efe096daf60 R11: 0000000000000246 R12: 0000000000000002
[ 52.949343][ T446] R13: 00000000690dee3a R14: 0000000000499600 R15: 0000000000000000
[ 52.949355][ T446]
[ 52.949357][ T446]
[ 52.967313][ T446] Allocated by task 304:
[ 52.967457][ T446] kasan_save_stack+0x24/0x40
[ 52.967664][ T446] kasan_save_track+0x14/0x30
[ 52.967855][ T446] __kasan_kmalloc+0x7b/0x90
[ 52.968041][ T446] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 52.968265][ T446] alloc_netdev_mqs+0x7d/0x1370
[ 52.968477][ T446] rtnl_create_link+0xa9e/0xe20
[ 52.968668][ T446] rtnl_newlink_create+0x203/0x770
[ 52.968856][ T446] __rtnl_newlink+0x231/0xa30
[ 52.969038][ T446] rtnl_newlink+0x693/0xa60
[ 52.969243][ T446] rtnetlink_rcv_msg+0x709/0xc00
[ 52.969441][ T446] netlink_rcv_skb+0x121/0x340
[ 52.969634][ T446] netlink_unicast+0x4aa/0x780
[ 52.969813][ T446] netlink_sendmsg+0x714/0xbd0
[ 52.970021][ T446] ____sys_sendmsg+0x3dd/0x890
[ 52.970236][ T446] ___sys_sendmsg+0xed/0x170
[ 52.970417][ T446] __sys_sendmsg+0x10b/0x1a0
[ 52.970611][ T446] do_syscall_64+0xc1/0xfd0
[ 52.970800][ T446] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 52.971049][ T446]
[ 52.971151][ T446] Freed by task 446:
[ 52.971297][ T446] kasan_save_stack+0x24/0x40
[ 52.971481][ T446] kasan_save_track+0x14/0x30
[ 52.971698][ T446] __kasan_save_free_info+0x3b/0x60
[ 52.971883][ T446] __kasan_slab_free+0x3f/0x60
[ 52.972081][ T446] kfree+0x21d/0x540
[ 52.972259][ T446] device_release+0x9c/0x210
[ 52.972573][ T446] kobject_cleanup+0xfe/0x360
[ 52.972773][ T446] netdev_run_todo+0x81f/0xc60
[ 52.972963][ T446] rtnl_dellink+0x350/0xa30
[ 52.973147][ T446] rtnetlink_rcv_msg+0x709/0xc00
[ 52.973419][ T446] netlink_rcv_skb+0x121/0x340
[ 52.973635][ T446] netlink_unicast+0x4aa/0x780
[ 52.973839][ T446] netlink_sendmsg+0x714/0xbd0
[ 52.974023][ T446] ____sys_sendmsg+0x3dd/0x890
[ 52.974207][ T446] ___sys_sendmsg+0xed/0x170
[ 52.974387][ T446] __sys_sendmsg+0x10b/0x1a0
[ 52.974671][ T446] do_syscall_64+0xc1/0xfd0
[ 52.974857][ T446] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 52.975176][ T446]
[ 52.975272][ T446] The buggy address belongs to the object at ffff88800fb5c000
[ 52.975272][ T446] which belongs to the cache kmalloc-4k of size 4096
[ 52.975734][ T446] The buggy address is located 1708 bytes inside of
[ 52.975734][ T446] freed 4096-byte region [ffff88800fb5c000, ffff88800fb5d000)
[ 52.976222][ T446]
[ 52.976314][ T446] The buggy address belongs to the physical page:
[ 52.976577][ T446] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xfb58
[ 52.976901][ T446] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 52.977203][ T446] flags: 0x80000000000040(head|node=0|zone=1)
[ 52.977523][ T446] page_type: f5(slab)
[ 52.977665][ T446] raw: 0080000000000040 ffff888001043700 ffffea0000393810 ffffea0000162c10
[ 52.977987][ T446] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 52.978309][ T446] head: 0080000000000040 ffff888001043700 ffffea0000393810 ffffea0000162c10
[ 52.978778][ T446] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 52.979227][ T446] head: 0080000000000003 ffffea00003ed601 00000000ffffffff 00000000ffffffff
[ 52.979552][ T446] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 52.979922][ T446] page dumped because: kasan: bad access detected
[ 52.980160][ T446]
[ 52.980254][ T446] Memory state around the buggy address:
[ 52.980436][ T446] ffff88800fb5c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 52.980725][ T446] ffff88800fb5c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 52.981094][ T446] >ffff88800fb5c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 52.981369][ T446] ^
[ 52.981557][ T446] ffff88800fb5c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 52.981864][ T446] ffff88800fb5c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 52.982121][ T446] ==================================================================
[ 52.982424][ T446] Disabling lock debugging due to kernel taint
[ 52.982671][ T446] ------------[ cut here ]------------
[ 52.982862][ T446] refcount_t: underflow; use-after-free.
[ 52.983248][ T446] WARNING: CPU: 0 PID: 446 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 52.983580][ T446] Modules linked in: xfrm_user vrf veth
[ 52.983779][ T446] CPU: 0 UID: 0 PID: 446 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 52.984167][ T446] Tainted: [B]=BAD_PAGE
[ 52.984304][ T446] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.984534][ T446] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 52.984774][ T446] 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 a9 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
[ 52.985425][ T446] RSP: 0018:ffffc900005f71f0 EFLAGS: 00010286
[ 52.985771][ T446] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 52.986050][ T446] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 52.986319][ T446] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff537e134
[ 52.986695][ T446] R10: 0000000000000003 R11: ffffc900005f6d80 R12: 0000000000000001
[ 52.986972][ T446] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 52.987334][ T446] FS: 00007efe09610800(0000) GS:ffff88808b1f2000(0000) knlGS:0000000000000000
[ 52.987651][ T446] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 52.987877][ T446] CR2: 00000000004a00a4 CR3: 000000000fb65005 CR4: 0000000000772ef0
[ 52.988314][ T446] PKRU: 55555554
[ 52.988458][ T446] Call Trace:
[ 52.988599][ T446]
[ 52.988693][ T446] netdev_run_todo+0x5f0/0xc60
[ 52.988878][ T446] ? dev_ingress_queue_create+0x190/0x190
[ 52.989162][ T446] ? generic_xdp_install+0x410/0x410
[ 52.989341][ T446] ? vrf_dellink+0xff/0x150 [vrf]
[ 52.989521][ T446] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 52.989845][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.990036][ T446] rtnl_dellink+0x350/0xa30
[ 52.990216][ T446] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 52.990450][ T446] ? find_held_lock+0x2b/0x80
[ 52.990724][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.990906][ T446] ? find_held_lock+0x2b/0x80
[ 52.991122][ T446] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 52.991303][ T446] ? __lock_release+0x5d/0x170
[ 52.991577][ T446] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 52.991815][ T446] rtnetlink_rcv_msg+0x709/0xc00
[ 52.992009][ T446] ? rtnl_port_fill+0x850/0x850
[ 52.992193][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.992471][ T446] netlink_rcv_skb+0x121/0x340
[ 52.992670][ T446] ? rtnl_port_fill+0x850/0x850
[ 52.992854][ T446] ? netlink_ack+0xdd0/0xdd0
[ 52.993045][ T446] ? netlink_deliver_tap+0x13e/0x340
[ 52.993315][ T446] ? netlink_deliver_tap+0xc3/0x340
[ 52.993501][ T446] netlink_unicast+0x4aa/0x780
[ 52.993694][ T446] ? netlink_attachskb+0x810/0x810
[ 52.993987][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.994174][ T446] netlink_sendmsg+0x714/0xbd0
[ 52.994358][ T446] ? netlink_unicast+0x780/0x780
[ 52.994549][ T446] ? __import_iovec+0x230/0x3b0
[ 52.994778][ T446] ? netlink_unicast+0x780/0x780
[ 52.994972][ T446] ____sys_sendmsg+0x3dd/0x890
[ 52.995155][ T446] ? get_timestamp.constprop.0+0x380/0x380
[ 52.995381][ T446] ? __copy_msghdr+0x3c0/0x3c0
[ 52.995680][ T446] ___sys_sendmsg+0xed/0x170
[ 52.995965][ T446] ? kasan_record_aux_stack+0x8c/0xa0
[ 52.996157][ T446] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 52.996389][ T446] ? copy_msghdr_from_user+0x110/0x110
[ 52.996575][ T446] ? find_held_lock+0x2b/0x80
[ 52.996755][ T446] ? __lock_acquire+0x449/0x7e0
[ 52.996948][ T446] ? find_held_lock+0x2b/0x80
[ 52.997127][ T446] ? __virt_addr_valid+0x22a/0x450
[ 52.997434][ T446] ? __lock_release+0x5d/0x170
[ 52.997628][ T446] __sys_sendmsg+0x10b/0x1a0
[ 52.997823][ T446] ? __call_rcu_common.constprop.0+0x318/0x630
[ 52.998058][ T446] ? __sys_sendmsg_sock+0x20/0x20
[ 52.998245][ T446] ? rcu_is_watching+0x12/0xb0
[ 52.998429][ T446] do_syscall_64+0xc1/0xfd0
[ 52.998623][ T446] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 52.998962][ T446] RIP: 0033:0x7efe097de1d7
[ 52.999158][ T446] 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
[ 53.000044][ T446] RSP: 002b:00007ffe685bfc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 53.000324][ T446] RAX: ffffffffffffffda RBX: 00007ffe685c03b0 RCX: 00007efe097de1d7
[ 53.000607][ T446] RDX: 0000000000000000 RSI: 00007ffe685bfcf0 RDI: 0000000000000005
[ 53.001094][ T446] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 53.001379][ T446] R10: 00007efe096daf60 R11: 0000000000000246 R12: 0000000000000002
[ 53.001662][ T446] R13: 00000000690dee3a R14: 0000000000499600 R15: 0000000000000000
[ 53.002050][ T446]
[ 53.002195][ T446] irq event stamp: 42885
[ 53.002344][ T446] hardirqs last enabled at (42885): [] irqentry_exit+0x3b/0x80
[ 53.002687][ T446] hardirqs last disabled at (42884): [] handle_softirqs+0x47f/0x610
[ 53.003015][ T446] softirqs last enabled at (42514): [] handle_softirqs+0x352/0x610
[ 53.003339][ T446] softirqs last disabled at (42509): [] irq_exit_rcu+0xab/0x100
[ 53.003865][ T446] ---[ end trace 0000000000000000 ]---
[ 53.010156][ T446] ip (446) used greatest stack depth: 24232 bytes left