[ 16.506805][ T252] ip (252) used greatest stack depth: 24096 bytes left
[ 34.329455][ T380] ==================================================================
[ 34.329775][ T380] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 34.330055][ T380] Read of size 1 at addr ffff88800a4fc6ac by task ip/380
[ 34.330283][ T380]
[ 34.330386][ T380] CPU: 1 UID: 0 PID: 380 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.330391][ T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.330393][ T380] Call Trace:
[ 34.330395][ T380]
[ 34.330397][ T380] dump_stack_lvl+0x82/0xc0
[ 34.330404][ T380] print_address_description.constprop.0+0x2c/0x3a0
[ 34.330412][ T380] ? kobject_put+0xbb/0xd0
[ 34.330417][ T380] print_report+0xb4/0x270
[ 34.330419][ T380] ? kobject_put+0xbb/0xd0
[ 34.330423][ T380] ? kasan_addr_to_slab+0x21/0x70
[ 34.330426][ T380] ? kobject_put+0xbb/0xd0
[ 34.330429][ T380] kasan_report+0xca/0x100
[ 34.330433][ T380] ? kobject_put+0xbb/0xd0
[ 34.330438][ T380] kobject_put+0xbb/0xd0
[ 34.330441][ T380] netdev_run_todo+0x5f0/0xc60
[ 34.330447][ T380] ? dev_ingress_queue_create+0x190/0x190
[ 34.330451][ T380] ? generic_xdp_install+0x410/0x410
[ 34.330455][ T380] ? vrf_dellink+0xff/0x150 [vrf]
[ 34.330462][ T380] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 34.330468][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.330478][ T380] rtnl_dellink+0x350/0xa30
[ 34.330485][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.330504][ T380] ? find_held_lock+0x2b/0x80
[ 34.330508][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.330514][ T380] ? find_held_lock+0x2b/0x80
[ 34.330518][ T380] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.330520][ T380] ? __lock_release+0x5d/0x170
[ 34.330525][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.330530][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 34.330537][ T380] ? rtnl_port_fill+0x850/0x850
[ 34.330541][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.330553][ T380] netlink_rcv_skb+0x121/0x340
[ 34.330557][ T380] ? rtnl_port_fill+0x850/0x850
[ 34.330561][ T380] ? netlink_ack+0xdd0/0xdd0
[ 34.330567][ T380] ? netlink_deliver_tap+0x13e/0x340
[ 34.330570][ T380] ? netlink_deliver_tap+0xc3/0x340
[ 34.330574][ T380] netlink_unicast+0x4aa/0x780
[ 34.330578][ T380] ? netlink_attachskb+0x810/0x810
[ 34.330581][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.330587][ T380] netlink_sendmsg+0x714/0xbd0
[ 34.330591][ T380] ? netlink_unicast+0x780/0x780
[ 34.330595][ T380] ? __import_iovec+0x230/0x3b0
[ 34.330601][ T380] ? netlink_unicast+0x780/0x780
[ 34.330605][ T380] ____sys_sendmsg+0x3dd/0x890
[ 34.330611][ T380] ? get_timestamp.constprop.0+0x380/0x380
[ 34.330614][ T380] ? __copy_msghdr+0x3c0/0x3c0
[ 34.330621][ T380] ___sys_sendmsg+0xed/0x170
[ 34.330624][ T380] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.330627][ T380] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.330636][ T380] ? copy_msghdr_from_user+0x110/0x110
[ 34.330644][ T380] ? find_held_lock+0x2b/0x80
[ 34.330651][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.330659][ T380] ? find_held_lock+0x2b/0x80
[ 34.330664][ T380] ? __virt_addr_valid+0x22a/0x450
[ 34.330672][ T380] ? __lock_release+0x5d/0x170
[ 34.330679][ T380] __sys_sendmsg+0x10b/0x1a0
[ 34.330682][ T380] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.330686][ T380] ? __sys_sendmsg_sock+0x20/0x20
[ 34.330693][ T380] ? rcu_is_watching+0x12/0xb0
[ 34.330698][ T380] do_syscall_64+0xc1/0xfd0
[ 34.330705][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.330710][ T380] RIP: 0033:0x7f571ef811d7
[ 34.330715][ T380] 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
[ 34.330718][ T380] RSP: 002b:00007ffca1729f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.330723][ T380] RAX: ffffffffffffffda RBX: 00007ffca172a660 RCX: 00007f571ef811d7
[ 34.330725][ T380] RDX: 0000000000000000 RSI: 00007ffca1729fa0 RDI: 0000000000000005
[ 34.330727][ T380] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.330728][ T380] R10: 00007f571ee7df60 R11: 0000000000000246 R12: 0000000000000002
[ 34.330730][ T380] R13: 00000000690defb9 R14: 0000000000499600 R15: 0000000000000000
[ 34.330736][ T380]
[ 34.330738][ T380]
[ 34.344788][ T380] Allocated by task 296:
[ 34.344936][ T380] kasan_save_stack+0x24/0x40
[ 34.345149][ T380] kasan_save_track+0x14/0x30
[ 34.345328][ T380] __kasan_kmalloc+0x7b/0x90
[ 34.345506][ T380] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 34.345706][ T380] alloc_netdev_mqs+0x7d/0x1370
[ 34.345894][ T380] rtnl_create_link+0xa9e/0xe20
[ 34.346086][ T380] rtnl_newlink_create+0x203/0x770
[ 34.346270][ T380] __rtnl_newlink+0x231/0xa30
[ 34.346447][ T380] rtnl_newlink+0x693/0xa60
[ 34.346635][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 34.346827][ T380] netlink_rcv_skb+0x121/0x340
[ 34.347007][ T380] netlink_unicast+0x4aa/0x780
[ 34.347194][ T380] netlink_sendmsg+0x714/0xbd0
[ 34.347371][ T380] ____sys_sendmsg+0x3dd/0x890
[ 34.347569][ T380] ___sys_sendmsg+0xed/0x170
[ 34.347756][ T380] __sys_sendmsg+0x10b/0x1a0
[ 34.347935][ T380] do_syscall_64+0xc1/0xfd0
[ 34.348127][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.348350][ T380]
[ 34.348442][ T380] Freed by task 380:
[ 34.348586][ T380] kasan_save_stack+0x24/0x40
[ 34.348777][ T380] kasan_save_track+0x14/0x30
[ 34.348962][ T380] __kasan_save_free_info+0x3b/0x60
[ 34.349148][ T380] __kasan_slab_free+0x3f/0x60
[ 34.349427][ T380] kfree+0x21d/0x540
[ 34.349569][ T380] device_release+0x9c/0x210
[ 34.349761][ T380] kobject_cleanup+0xfe/0x360
[ 34.349938][ T380] netdev_run_todo+0x81f/0xc60
[ 34.350128][ T380] rtnl_dellink+0x350/0xa30
[ 34.350401][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 34.350592][ T380] netlink_rcv_skb+0x121/0x340
[ 34.350779][ T380] netlink_unicast+0x4aa/0x780
[ 34.350957][ T380] netlink_sendmsg+0x714/0xbd0
[ 34.351243][ T380] ____sys_sendmsg+0x3dd/0x890
[ 34.351406][ T380] ___sys_sendmsg+0xed/0x170
[ 34.351588][ T380] __sys_sendmsg+0x10b/0x1a0
[ 34.351769][ T380] do_syscall_64+0xc1/0xfd0
[ 34.352044][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.352283][ T380]
[ 34.352375][ T380] The buggy address belongs to the object at ffff88800a4fc000
[ 34.352375][ T380] which belongs to the cache kmalloc-4k of size 4096
[ 34.352937][ T380] The buggy address is located 1708 bytes inside of
[ 34.352937][ T380] freed 4096-byte region [ffff88800a4fc000, ffff88800a4fd000)
[ 34.353382][ T380]
[ 34.353575][ T380] The buggy address belongs to the physical page:
[ 34.353820][ T380] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa4f8
[ 34.354147][ T380] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 34.354517][ T380] flags: 0x80000000000040(head|node=0|zone=1)
[ 34.354771][ T380] page_type: f5(slab)
[ 34.354913][ T380] raw: 0080000000000040 ffff888001043700 ffffea00001b9610 ffffea0000295a10
[ 34.355345][ T380] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.355679][ T380] head: 0080000000000040 ffff888001043700 ffffea00001b9610 ffffea0000295a10
[ 34.355993][ T380] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.356420][ T380] head: 0080000000000003 ffffea0000293e01 00000000ffffffff 00000000ffffffff
[ 34.356756][ T380] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 34.357181][ T380] page dumped because: kasan: bad access detected
[ 34.357403][ T380]
[ 34.357494][ T380] Memory state around the buggy address:
[ 34.357688][ T380] ffff88800a4fc580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.358039][ T380] ffff88800a4fc600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.358311][ T380] >ffff88800a4fc680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.358682][ T380] ^
[ 34.358856][ T380] ffff88800a4fc700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.359121][ T380] ffff88800a4fc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.359477][ T380] ==================================================================
[ 34.360255][ T380] Disabling lock debugging due to kernel taint
[ 34.360729][ T380] ------------[ cut here ]------------
[ 34.360903][ T380] refcount_t: underflow; use-after-free.
[ 34.361211][ T380] WARNING: CPU: 1 PID: 380 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 34.361592][ T380] Modules linked in: sch_ingress vrf veth
[ 34.361796][ T380] CPU: 1 UID: 0 PID: 380 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.362158][ T380] Tainted: [B]=BAD_PAGE
[ 34.362295][ T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.362546][ T380] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 34.362801][ T380] 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 87 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
[ 34.363545][ T380] RSP: 0018:ffffc900009671f0 EFLAGS: 00010286
[ 34.363793][ T380] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 34.364172][ T380] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 34.364443][ T380] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff10be134
[ 34.364825][ T380] R10: 0000000000000003 R11: ffffc90000966d80 R12: 0000000000000001
[ 34.365096][ T380] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 34.365363][ T380] FS: 00007f571edb3800(0000) GS:ffff8880a6e72000(0000) knlGS:0000000000000000
[ 34.365806][ T380] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 34.366028][ T380] CR2: 00000000004e5450 CR3: 000000000837c002 CR4: 0000000000772ef0
[ 34.366305][ T380] PKRU: 55555554
[ 34.366552][ T380] Call Trace:
[ 34.366699][ T380]
[ 34.366792][ T380] netdev_run_todo+0x5f0/0xc60
[ 34.366979][ T380] ? dev_ingress_queue_create+0x190/0x190
[ 34.367169][ T380] ? generic_xdp_install+0x410/0x410
[ 34.367446][ T380] ? vrf_dellink+0xff/0x150 [vrf]
[ 34.367636][ T380] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 34.367866][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.368153][ T380] rtnl_dellink+0x350/0xa30
[ 34.368333][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.368673][ T380] ? find_held_lock+0x2b/0x80
[ 34.368857][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.369031][ T380] ? find_held_lock+0x2b/0x80
[ 34.369217][ T380] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.369466][ T380] ? __lock_release+0x5d/0x170
[ 34.369660][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.369882][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 34.370069][ T380] ? rtnl_port_fill+0x850/0x850
[ 34.370256][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.370506][ T380] netlink_rcv_skb+0x121/0x340
[ 34.370701][ T380] ? rtnl_port_fill+0x850/0x850
[ 34.370876][ T380] ? netlink_ack+0xdd0/0xdd0
[ 34.371053][ T380] ? netlink_deliver_tap+0x13e/0x340
[ 34.371329][ T380] ? netlink_deliver_tap+0xc3/0x340
[ 34.371592][ T380] netlink_unicast+0x4aa/0x780
[ 34.371797][ T380] ? netlink_attachskb+0x810/0x810
[ 34.371972][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.372163][ T380] netlink_sendmsg+0x714/0xbd0
[ 34.372340][ T380] ? netlink_unicast+0x780/0x780
[ 34.372644][ T380] ? __import_iovec+0x230/0x3b0
[ 34.372835][ T380] ? netlink_unicast+0x780/0x780
[ 34.373010][ T380] ____sys_sendmsg+0x3dd/0x890
[ 34.373290][ T380] ? get_timestamp.constprop.0+0x380/0x380
[ 34.373598][ T380] ? __copy_msghdr+0x3c0/0x3c0
[ 34.373792][ T380] ___sys_sendmsg+0xed/0x170
[ 34.373966][ T380] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.374148][ T380] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.374369][ T380] ? copy_msghdr_from_user+0x110/0x110
[ 34.374726][ T380] ? find_held_lock+0x2b/0x80
[ 34.374896][ T380] ? __lock_acquire+0x449/0x7e0
[ 34.375069][ T380] ? find_held_lock+0x2b/0x80
[ 34.375253][ T380] ? __virt_addr_valid+0x22a/0x450
[ 34.375497][ T380] ? __lock_release+0x5d/0x170
[ 34.375697][ T380] __sys_sendmsg+0x10b/0x1a0
[ 34.375875][ T380] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.376094][ T380] ? __sys_sendmsg_sock+0x20/0x20
[ 34.376279][ T380] ? rcu_is_watching+0x12/0xb0
[ 34.376532][ T380] do_syscall_64+0xc1/0xfd0
[ 34.376738][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.376955][ T380] RIP: 0033:0x7f571ef811d7
[ 34.377147][ T380] 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
[ 34.377971][ T380] RSP: 002b:00007ffca1729f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.378260][ T380] RAX: ffffffffffffffda RBX: 00007ffca172a660 RCX: 00007f571ef811d7
[ 34.378601][ T380] RDX: 0000000000000000 RSI: 00007ffca1729fa0 RDI: 0000000000000005
[ 34.378877][ T380] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.379146][ T380] R10: 00007f571ee7df60 R11: 0000000000000246 R12: 0000000000000002
[ 34.379486][ T380] R13: 00000000690defb9 R14: 0000000000499600 R15: 0000000000000000
[ 34.379780][ T380]
[ 34.379916][ T380] irq event stamp: 42817
[ 34.380051][ T380] hardirqs last enabled at (42817): [] finish_task_switch.isra.0+0x245/0x960
[ 34.380583][ T380] hardirqs last disabled at (42816): [] __schedule+0x94a/0x1b10
[ 34.380911][ T380] softirqs last enabled at (42116): [] handle_softirqs+0x352/0x610
[ 34.381224][ T380] softirqs last disabled at (42111): [] irq_exit_rcu+0xab/0x100
[ 34.381706][ T380] ---[ end trace 0000000000000000 ]---