[ 16.370648][ T252] ip (252) used greatest stack depth: 23920 bytes left
[ 33.224210][ T380] ==================================================================
[ 33.224537][ T380] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 33.224809][ T380] Read of size 1 at addr ffff8880077916ac by task ip/380
[ 33.225045][ T380]
[ 33.225135][ T380] CPU: 0 UID: 0 PID: 380 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 33.225140][ T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.225142][ T380] Call Trace:
[ 33.225144][ T380]
[ 33.225146][ T380] dump_stack_lvl+0x82/0xc0
[ 33.225154][ T380] print_address_description.constprop.0+0x2c/0x3a0
[ 33.225163][ T380] ? kobject_put+0xbb/0xd0
[ 33.225168][ T380] print_report+0xb4/0x270
[ 33.225173][ T380] ? kobject_put+0xbb/0xd0
[ 33.225177][ T380] ? kasan_addr_to_slab+0x21/0x70
[ 33.225182][ T380] ? kobject_put+0xbb/0xd0
[ 33.225185][ T380] kasan_report+0xca/0x100
[ 33.225189][ T380] ? kobject_put+0xbb/0xd0
[ 33.225194][ T380] kobject_put+0xbb/0xd0
[ 33.225198][ T380] netdev_run_todo+0x5f0/0xc60
[ 33.225206][ T380] ? dev_ingress_queue_create+0x190/0x190
[ 33.225210][ T380] ? generic_xdp_install+0x410/0x410
[ 33.225214][ T380] ? vrf_dellink+0xff/0x150 [vrf]
[ 33.225220][ T380] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 33.225224][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.225233][ T380] rtnl_dellink+0x350/0xa30
[ 33.225238][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 33.225256][ T380] ? find_held_lock+0x2b/0x80
[ 33.225261][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.225267][ T380] ? find_held_lock+0x2b/0x80
[ 33.225270][ T380] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 33.225273][ T380] ? __lock_release+0x5d/0x170
[ 33.225278][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 33.225281][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 33.225284][ T380] ? rtnl_port_fill+0x850/0x850
[ 33.225287][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.225294][ T380] netlink_rcv_skb+0x121/0x340
[ 33.225298][ T380] ? rtnl_port_fill+0x850/0x850
[ 33.225301][ T380] ? netlink_ack+0xdd0/0xdd0
[ 33.225340][ T380] ? netlink_deliver_tap+0x13e/0x340
[ 33.225345][ T380] ? netlink_deliver_tap+0xc3/0x340
[ 33.225349][ T380] netlink_unicast+0x4aa/0x780
[ 33.225353][ T380] ? netlink_attachskb+0x810/0x810
[ 33.225357][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.225363][ T380] netlink_sendmsg+0x714/0xbd0
[ 33.225367][ T380] ? netlink_unicast+0x780/0x780
[ 33.225371][ T380] ? __import_iovec+0x230/0x3b0
[ 33.225381][ T380] ? netlink_unicast+0x780/0x780
[ 33.225385][ T380] ____sys_sendmsg+0x3dd/0x890
[ 33.225395][ T380] ? get_timestamp.constprop.0+0x380/0x380
[ 33.225398][ T380] ? __copy_msghdr+0x3c0/0x3c0
[ 33.225406][ T380] ___sys_sendmsg+0xed/0x170
[ 33.225409][ T380] ? kasan_record_aux_stack+0x8c/0xa0
[ 33.225413][ T380] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 33.225420][ T380] ? copy_msghdr_from_user+0x110/0x110
[ 33.225424][ T380] ? find_held_lock+0x2b/0x80
[ 33.225429][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.225435][ T380] ? find_held_lock+0x2b/0x80
[ 33.225438][ T380] ? __virt_addr_valid+0x22a/0x450
[ 33.225443][ T380] ? __lock_release+0x5d/0x170
[ 33.225450][ T380] __sys_sendmsg+0x10b/0x1a0
[ 33.225453][ T380] ? __call_rcu_common.constprop.0+0x318/0x630
[ 33.225457][ T380] ? __sys_sendmsg_sock+0x20/0x20
[ 33.225464][ T380] ? rcu_is_watching+0x12/0xb0
[ 33.225468][ T380] do_syscall_64+0xc1/0xfd0
[ 33.225473][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 33.225477][ T380] RIP: 0033:0x7f82f30c61d7
[ 33.225482][ 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
[ 33.225485][ T380] RSP: 002b:00007ffdbcc80b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 33.225491][ T380] RAX: ffffffffffffffda RBX: 00007ffdbcc812c0 RCX: 00007f82f30c61d7
[ 33.225493][ T380] RDX: 0000000000000000 RSI: 00007ffdbcc80c00 RDI: 0000000000000005
[ 33.225495][ T380] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 33.225496][ T380] R10: 00007f82f2fc2f60 R11: 0000000000000246 R12: 0000000000000002
[ 33.225498][ T380] R13: 00000000690defd2 R14: 0000000000499600 R15: 0000000000000000
[ 33.225504][ T380]
[ 33.225506][ T380]
[ 33.238721][ T380] Allocated by task 321:
[ 33.238855][ T380] kasan_save_stack+0x24/0x40
[ 33.239029][ T380] kasan_save_track+0x14/0x30
[ 33.239216][ T380] __kasan_kmalloc+0x7b/0x90
[ 33.239400][ T380] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 33.239568][ T380] alloc_netdev_mqs+0x7d/0x1370
[ 33.239737][ T380] rtnl_create_link+0xa9e/0xe20
[ 33.239899][ T380] rtnl_newlink_create+0x203/0x770
[ 33.240063][ T380] __rtnl_newlink+0x231/0xa30
[ 33.240252][ T380] rtnl_newlink+0x693/0xa60
[ 33.240429][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 33.240594][ T380] netlink_rcv_skb+0x121/0x340
[ 33.240767][ T380] netlink_unicast+0x4aa/0x780
[ 33.240932][ T380] netlink_sendmsg+0x714/0xbd0
[ 33.241103][ T380] ____sys_sendmsg+0x3dd/0x890
[ 33.241295][ T380] ___sys_sendmsg+0xed/0x170
[ 33.241474][ T380] __sys_sendmsg+0x10b/0x1a0
[ 33.241642][ T380] do_syscall_64+0xc1/0xfd0
[ 33.241898][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 33.242121][ T380]
[ 33.242242][ T380] Freed by task 380:
[ 33.242406][ T380] kasan_save_stack+0x24/0x40
[ 33.242658][ T380] kasan_save_track+0x14/0x30
[ 33.242826][ T380] __kasan_save_free_info+0x3b/0x60
[ 33.242992][ T380] __kasan_slab_free+0x3f/0x60
[ 33.243216][ T380] kfree+0x21d/0x540
[ 33.243376][ T380] device_release+0x9c/0x210
[ 33.243558][ T380] kobject_cleanup+0xfe/0x360
[ 33.243733][ T380] netdev_run_todo+0x81f/0xc60
[ 33.243975][ T380] rtnl_dellink+0x350/0xa30
[ 33.244145][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 33.244316][ T380] netlink_rcv_skb+0x121/0x340
[ 33.244492][ T380] netlink_unicast+0x4aa/0x780
[ 33.244661][ T380] netlink_sendmsg+0x714/0xbd0
[ 33.244825][ T380] ____sys_sendmsg+0x3dd/0x890
[ 33.244991][ T380] ___sys_sendmsg+0xed/0x170
[ 33.245157][ T380] __sys_sendmsg+0x10b/0x1a0
[ 33.245355][ T380] do_syscall_64+0xc1/0xfd0
[ 33.245532][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 33.245737][ T380]
[ 33.245821][ T380] The buggy address belongs to the object at ffff888007791000
[ 33.245821][ T380] which belongs to the cache kmalloc-4k of size 4096
[ 33.246238][ T380] The buggy address is located 1708 bytes inside of
[ 33.246238][ T380] freed 4096-byte region [ffff888007791000, ffff888007792000)
[ 33.246664][ T380]
[ 33.246748][ T380] The buggy address belongs to the physical page:
[ 33.246951][ T380] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7790
[ 33.247257][ T380] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 33.247523][ T380] flags: 0x80000000000040(head|node=0|zone=1)
[ 33.247746][ T380] page_type: f5(slab)
[ 33.247883][ T380] raw: 0080000000000040 ffff888001043700 ffffea0000148410 ffffea000007fc10
[ 33.248198][ T380] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 33.248568][ T380] head: 0080000000000040 ffff888001043700 ffffea0000148410 ffffea000007fc10
[ 33.248865][ T380] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 33.249166][ T380] head: 0080000000000003 ffffea00001de401 00000000ffffffff 00000000ffffffff
[ 33.249535][ T380] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 33.249823][ T380] page dumped because: kasan: bad access detected
[ 33.250029][ T380]
[ 33.250113][ T380] Memory state around the buggy address:
[ 33.250375][ T380] ffff888007791580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 33.250624][ T380] ffff888007791600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 33.250910][ T380] >ffff888007791680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 33.251211][ T380] ^
[ 33.251398][ T380] ffff888007791700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 33.251649][ T380] ffff888007791780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 33.251883][ T380] ==================================================================
[ 33.252510][ T380] Disabling lock debugging due to kernel taint
[ 33.252850][ T380] ------------[ cut here ]------------
[ 33.253109][ T380] refcount_t: underflow; use-after-free.
[ 33.253335][ T380] WARNING: CPU: 1 PID: 380 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 33.253630][ T380] Modules linked in: sch_ingress vrf veth
[ 33.253807][ T380] CPU: 1 UID: 0 PID: 380 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 33.254145][ T380] Tainted: [B]=BAD_PAGE
[ 33.254281][ T380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.254502][ T380] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 33.254717][ 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 89 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
[ 33.255453][ T380] RSP: 0018:ffffc900007771f0 EFLAGS: 00010286
[ 33.255675][ T380] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 33.255919][ T380] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 33.256164][ T380] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff14be134
[ 33.256423][ T380] R10: 0000000000000003 R11: ffffc90000776d80 R12: 0000000000000001
[ 33.256672][ T380] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 33.256912][ T380] FS: 00007f82f2ef8800(0000) GS:ffff8880aa872000(0000) knlGS:0000000000000000
[ 33.257209][ T380] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 33.257426][ T380] CR2: 00007f8c07b4b000 CR3: 000000000e534004 CR4: 0000000000772ef0
[ 33.257678][ T380] PKRU: 55555554
[ 33.257799][ T380] Call Trace:
[ 33.257920][ T380]
[ 33.258008][ T380] netdev_run_todo+0x5f0/0xc60
[ 33.258185][ T380] ? dev_ingress_queue_create+0x190/0x190
[ 33.258370][ T380] ? generic_xdp_install+0x410/0x410
[ 33.258536][ T380] ? vrf_dellink+0xff/0x150 [vrf]
[ 33.258699][ T380] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 33.258898][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.259072][ T380] rtnl_dellink+0x350/0xa30
[ 33.259355][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 33.259572][ T380] ? find_held_lock+0x2b/0x80
[ 33.259732][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.259891][ T380] ? find_held_lock+0x2b/0x80
[ 33.260145][ T380] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 33.260307][ T380] ? __lock_release+0x5d/0x170
[ 33.260495][ T380] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 33.260698][ T380] rtnetlink_rcv_msg+0x709/0xc00
[ 33.260951][ T380] ? rtnl_port_fill+0x850/0x850
[ 33.261114][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.261278][ T380] netlink_rcv_skb+0x121/0x340
[ 33.261540][ T380] ? rtnl_port_fill+0x850/0x850
[ 33.261701][ T380] ? netlink_ack+0xdd0/0xdd0
[ 33.261864][ T380] ? netlink_deliver_tap+0x13e/0x340
[ 33.262121][ T380] ? netlink_deliver_tap+0xc3/0x340
[ 33.262284][ T380] netlink_unicast+0x4aa/0x780
[ 33.262650][ T380] ? netlink_attachskb+0x810/0x810
[ 33.262923][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.263196][ T380] netlink_sendmsg+0x714/0xbd0
[ 33.263473][ T380] ? netlink_unicast+0x780/0x780
[ 33.263745][ T380] ? __import_iovec+0x230/0x3b0
[ 33.264020][ T380] ? netlink_unicast+0x780/0x780
[ 33.264294][ T380] ____sys_sendmsg+0x3dd/0x890
[ 33.264574][ T380] ? get_timestamp.constprop.0+0x380/0x380
[ 33.264908][ T380] ? __copy_msghdr+0x3c0/0x3c0
[ 33.265196][ T380] ___sys_sendmsg+0xed/0x170
[ 33.265492][ T380] ? kasan_record_aux_stack+0x8c/0xa0
[ 33.265764][ T380] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 33.266115][ T380] ? copy_msghdr_from_user+0x110/0x110
[ 33.266400][ T380] ? find_held_lock+0x2b/0x80
[ 33.266682][ T380] ? __lock_acquire+0x449/0x7e0
[ 33.266958][ T380] ? find_held_lock+0x2b/0x80
[ 33.267239][ T380] ? __virt_addr_valid+0x22a/0x450
[ 33.267513][ T380] ? __lock_release+0x5d/0x170
[ 33.267784][ T380] __sys_sendmsg+0x10b/0x1a0
[ 33.268050][ T380] ? __call_rcu_common.constprop.0+0x318/0x630
[ 33.268397][ T380] ? __sys_sendmsg_sock+0x20/0x20
[ 33.268676][ T380] ? rcu_is_watching+0x12/0xb0
[ 33.268895][ T380] do_syscall_64+0xc1/0xfd0
[ 33.269059][ T380] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 33.269263][ T380] RIP: 0033:0x7f82f30c61d7
[ 33.269453][ 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
[ 33.270025][ T380] RSP: 002b:00007ffdbcc80b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 33.270271][ T380] RAX: ffffffffffffffda RBX: 00007ffdbcc812c0 RCX: 00007f82f30c61d7
[ 33.270533][ T380] RDX: 0000000000000000 RSI: 00007ffdbcc80c00 RDI: 0000000000000005
[ 33.270782][ T380] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 33.271023][ T380] R10: 00007f82f2fc2f60 R11: 0000000000000246 R12: 0000000000000002
[ 33.271271][ T380] R13: 00000000690defd2 R14: 0000000000499600 R15: 0000000000000000
[ 33.271537][ T380]
[ 33.271660][ T380] irq event stamp: 42895
[ 33.271780][ T380] hardirqs last enabled at (42895): [] kasan_quarantine_put+0xf9/0x210
[ 33.272073][ T380] hardirqs last disabled at (42894): [] kasan_quarantine_put+0xac/0x210
[ 33.272370][ T380] softirqs last enabled at (41942): [] handle_softirqs+0x352/0x610
[ 33.272651][ T380] softirqs last disabled at (41895): [] irq_exit_rcu+0xab/0x100
[ 33.272929][ T380] ---[ end trace 0000000000000000 ]---