[ 14.926846][ T250] ip (250) used greatest stack depth: 24440 bytes left
[ 20.085017][ T310] 8021q: 802.1Q VLAN Support v1.8
[ 21.197341][ T321] gre: GRE over IPv4 demultiplexer driver
[ 21.215188][ T321] ip_gre: GRE over IPv4 tunneling driver
[ 28.329196][ T387] GACT probability NOT on
[ 113.727753][ T662] ==================================================================
[ 113.728155][ T662] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 113.728494][ T662] Read of size 1 at addr ffff88800ba0c6ac by task ip/662
[ 113.728701][ T662]
[ 113.728800][ T662] CPU: 3 UID: 0 PID: 662 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 113.728807][ T662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.728814][ T662] Call Trace:
[ 113.728819][ T662]
[ 113.728821][ T662] dump_stack_lvl+0x82/0xc0
[ 113.728832][ T662] print_address_description.constprop.0+0x2c/0x3a0
[ 113.728852][ T662] ? kobject_put+0xbb/0xd0
[ 113.728856][ T662] print_report+0xb4/0x270
[ 113.728859][ T662] ? kobject_put+0xbb/0xd0
[ 113.728862][ T662] ? kasan_addr_to_slab+0x21/0x70
[ 113.728865][ T662] ? kobject_put+0xbb/0xd0
[ 113.728869][ T662] kasan_report+0xca/0x100
[ 113.728872][ T662] ? kobject_put+0xbb/0xd0
[ 113.728878][ T662] kobject_put+0xbb/0xd0
[ 113.728881][ T662] netdev_run_todo+0x5f0/0xc60
[ 113.728891][ T662] ? dev_ingress_queue_create+0x190/0x190
[ 113.728895][ T662] ? generic_xdp_install+0x410/0x410
[ 113.728901][ T662] ? vrf_dellink+0xff/0x150 [vrf]
[ 113.728913][ T662] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 113.728918][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.728934][ T662] rtnl_dellink+0x350/0xa30
[ 113.728943][ T662] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.728962][ T662] ? find_held_lock+0x2b/0x80
[ 113.728967][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.728972][ T662] ? find_held_lock+0x2b/0x80
[ 113.728976][ T662] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 113.728979][ T662] ? __lock_release+0x5d/0x170
[ 113.728984][ T662] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.728987][ T662] rtnetlink_rcv_msg+0x709/0xc00
[ 113.728991][ T662] ? rtnl_port_fill+0x850/0x850
[ 113.728994][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.729001][ T662] netlink_rcv_skb+0x121/0x340
[ 113.729009][ T662] ? rtnl_port_fill+0x850/0x850
[ 113.729012][ T662] ? netlink_ack+0xdd0/0xdd0
[ 113.729019][ T662] ? netlink_deliver_tap+0x13e/0x340
[ 113.729021][ T662] ? netlink_deliver_tap+0xc3/0x340
[ 113.729025][ T662] netlink_unicast+0x4aa/0x780
[ 113.729029][ T662] ? netlink_attachskb+0x810/0x810
[ 113.729033][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.729041][ T662] netlink_sendmsg+0x714/0xbd0
[ 113.729045][ T662] ? netlink_unicast+0x780/0x780
[ 113.729049][ T662] ? __import_iovec+0x230/0x3b0
[ 113.729063][ T662] ? netlink_unicast+0x780/0x780
[ 113.729067][ T662] ____sys_sendmsg+0x3dd/0x890
[ 113.729080][ T662] ? get_timestamp.constprop.0+0x380/0x380
[ 113.729084][ T662] ? __copy_msghdr+0x3c0/0x3c0
[ 113.729094][ T662] ___sys_sendmsg+0xed/0x170
[ 113.729097][ T662] ? kasan_record_aux_stack+0x8c/0xa0
[ 113.729100][ T662] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 113.729115][ T662] ? copy_msghdr_from_user+0x110/0x110
[ 113.729120][ T662] ? find_held_lock+0x2b/0x80
[ 113.729125][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.729130][ T662] ? find_held_lock+0x2b/0x80
[ 113.729134][ T662] ? __virt_addr_valid+0x22a/0x450
[ 113.729150][ T662] ? __lock_release+0x5d/0x170
[ 113.729156][ T662] __sys_sendmsg+0x10b/0x1a0
[ 113.729159][ T662] ? __call_rcu_common.constprop.0+0x318/0x630
[ 113.729164][ T662] ? __sys_sendmsg_sock+0x20/0x20
[ 113.729171][ T662] ? rcu_is_watching+0x12/0xb0
[ 113.729176][ T662] do_syscall_64+0xc1/0xfd0
[ 113.729184][ T662] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.729194][ T662] RIP: 0033:0x7f977da441d7
[ 113.729202][ T662] 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
[ 113.729207][ T662] RSP: 002b:00007ffc6de395d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 113.729217][ T662] RAX: ffffffffffffffda RBX: 00007ffc6de39d00 RCX: 00007f977da441d7
[ 113.729220][ T662] RDX: 0000000000000000 RSI: 00007ffc6de39640 RDI: 0000000000000005
[ 113.729222][ T662] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 113.729223][ T662] R10: 00007f977d940f60 R11: 0000000000000246 R12: 0000000000000002
[ 113.729225][ T662] R13: 00000000690df582 R14: 0000000000499600 R15: 0000000000000000
[ 113.729232][ T662]
[ 113.729233][ T662]
[ 113.742486][ T662] Allocated by task 389:
[ 113.742649][ T662] kasan_save_stack+0x24/0x40
[ 113.742849][ T662] kasan_save_track+0x14/0x30
[ 113.743018][ T662] __kasan_kmalloc+0x7b/0x90
[ 113.743196][ T662] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 113.743382][ T662] alloc_netdev_mqs+0x7d/0x1370
[ 113.743574][ T662] rtnl_create_link+0xa9e/0xe20
[ 113.743743][ T662] rtnl_newlink_create+0x203/0x770
[ 113.743908][ T662] __rtnl_newlink+0x231/0xa30
[ 113.744080][ T662] rtnl_newlink+0x693/0xa60
[ 113.744257][ T662] rtnetlink_rcv_msg+0x709/0xc00
[ 113.744434][ T662] netlink_rcv_skb+0x121/0x340
[ 113.744635][ T662] netlink_unicast+0x4aa/0x780
[ 113.744805][ T662] netlink_sendmsg+0x714/0xbd0
[ 113.744979][ T662] ____sys_sendmsg+0x3dd/0x890
[ 113.745154][ T662] ___sys_sendmsg+0xed/0x170
[ 113.745325][ T662] __sys_sendmsg+0x10b/0x1a0
[ 113.745510][ T662] do_syscall_64+0xc1/0xfd0
[ 113.745685][ T662] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.745905][ T662]
[ 113.745991][ T662] Freed by task 662:
[ 113.746119][ T662] kasan_save_stack+0x24/0x40
[ 113.746292][ T662] kasan_save_track+0x14/0x30
[ 113.746479][ T662] __kasan_save_free_info+0x3b/0x60
[ 113.746649][ T662] __kasan_slab_free+0x3f/0x60
[ 113.746820][ T662] kfree+0x21d/0x540
[ 113.746949][ T662] device_release+0x9c/0x210
[ 113.747139][ T662] kobject_cleanup+0xfe/0x360
[ 113.747308][ T662] netdev_run_todo+0x81f/0xc60
[ 113.747499][ T662] rtnl_dellink+0x350/0xa30
[ 113.747706][ T662] rtnetlink_rcv_msg+0x709/0xc00
[ 113.747885][ T662] netlink_rcv_skb+0x121/0x340
[ 113.748162][ T662] netlink_unicast+0x4aa/0x780
[ 113.748354][ T662] netlink_sendmsg+0x714/0xbd0
[ 113.748688][ T662] ____sys_sendmsg+0x3dd/0x890
[ 113.748863][ T662] ___sys_sendmsg+0xed/0x170
[ 113.749037][ T662] __sys_sendmsg+0x10b/0x1a0
[ 113.749226][ T662] do_syscall_64+0xc1/0xfd0
[ 113.749404][ T662] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.749735][ T662]
[ 113.749829][ T662] The buggy address belongs to the object at ffff88800ba0c000
[ 113.749829][ T662] which belongs to the cache kmalloc-4k of size 4096
[ 113.750241][ T662] The buggy address is located 1708 bytes inside of
[ 113.750241][ T662] freed 4096-byte region [ffff88800ba0c000, ffff88800ba0d000)
[ 113.750719][ T662]
[ 113.750809][ T662] The buggy address belongs to the physical page:
[ 113.751030][ T662] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xba08
[ 113.751333][ T662] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 113.751717][ T662] flags: 0x80000000000040(head|node=0|zone=1)
[ 113.751948][ T662] page_type: f5(slab)
[ 113.752091][ T662] raw: 0080000000000040 ffff888001043700 ffffea000027e210 ffffea0000217a10
[ 113.752551][ T662] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 113.752848][ T662] head: 0080000000000040 ffff888001043700 ffffea000027e210 ffffea0000217a10
[ 113.753247][ T662] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 113.753586][ T662] head: 0080000000000003 ffffea00002e8201 00000000ffffffff 00000000ffffffff
[ 113.754011][ T662] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 113.754307][ T662] page dumped because: kasan: bad access detected
[ 113.754534][ T662]
[ 113.754746][ T662] Memory state around the buggy address:
[ 113.754917][ T662] ffff88800ba0c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.755169][ T662] ffff88800ba0c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.755422][ T662] >ffff88800ba0c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.755679][ T662] ^
[ 113.755847][ T662] ffff88800ba0c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.756197][ T662] ffff88800ba0c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 113.756456][ T662] ==================================================================
[ 113.756874][ T662] Disabling lock debugging due to kernel taint
[ 113.757566][ T662] ------------[ cut here ]------------
[ 113.757866][ T662] refcount_t: underflow; use-after-free.
[ 113.758315][ T662] WARNING: CPU: 2 PID: 662 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 113.758853][ T662] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth
[ 113.759437][ T662] CPU: 2 UID: 0 PID: 662 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 113.760095][ T662] Tainted: [B]=BAD_PAGE
[ 113.760354][ T662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.760748][ T662] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 113.761172][ T662] 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 93 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
[ 113.762239][ T662] RSP: 0018:ffffc9000116f1f0 EFLAGS: 00010286
[ 113.762631][ T662] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 113.763107][ T662] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 113.763558][ T662] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff277e134
[ 113.764036][ T662] R10: 0000000000000003 R11: ffffc9000116ed80 R12: 0000000000000001
[ 113.764496][ T662] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 113.764856][ T662] FS: 00007f977d876800(0000) GS:ffff8880a12f2000(0000) knlGS:0000000000000000
[ 113.765217][ T662] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 113.765480][ T662] CR2: 000055e412c9adec CR3: 000000000957a003 CR4: 0000000000772ef0
[ 113.765886][ T662] PKRU: 55555554
[ 113.766091][ T662] Call Trace:
[ 113.766262][ T662]
[ 113.766378][ T662] netdev_run_todo+0x5f0/0xc60
[ 113.766589][ T662] ? dev_ingress_queue_create+0x190/0x190
[ 113.766887][ T662] ? generic_xdp_install+0x410/0x410
[ 113.767095][ T662] ? vrf_dellink+0xff/0x150 [vrf]
[ 113.767305][ T662] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 113.767688][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.767901][ T662] rtnl_dellink+0x350/0xa30
[ 113.768122][ T662] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.768384][ T662] ? find_held_lock+0x2b/0x80
[ 113.768683][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.768885][ T662] ? find_held_lock+0x2b/0x80
[ 113.769098][ T662] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 113.769306][ T662] ? __lock_release+0x5d/0x170
[ 113.769626][ T662] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 113.769871][ T662] rtnetlink_rcv_msg+0x709/0xc00
[ 113.770138][ T662] ? rtnl_port_fill+0x850/0x850
[ 113.770332][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.770656][ T662] netlink_rcv_skb+0x121/0x340
[ 113.770851][ T662] ? rtnl_port_fill+0x850/0x850
[ 113.771049][ T662] ? netlink_ack+0xdd0/0xdd0
[ 113.771259][ T662] ? netlink_deliver_tap+0x13e/0x340
[ 113.771541][ T662] ? netlink_deliver_tap+0xc3/0x340
[ 113.771738][ T662] netlink_unicast+0x4aa/0x780
[ 113.771928][ T662] ? netlink_attachskb+0x810/0x810
[ 113.772124][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.772422][ T662] netlink_sendmsg+0x714/0xbd0
[ 113.772612][ T662] ? netlink_unicast+0x780/0x780
[ 113.772805][ T662] ? __import_iovec+0x230/0x3b0
[ 113.773013][ T662] ? netlink_unicast+0x780/0x780
[ 113.773300][ T662] ____sys_sendmsg+0x3dd/0x890
[ 113.773497][ T662] ? get_timestamp.constprop.0+0x380/0x380
[ 113.773722][ T662] ? __copy_msghdr+0x3c0/0x3c0
[ 113.773921][ T662] ___sys_sendmsg+0xed/0x170
[ 113.774111][ T662] ? kasan_record_aux_stack+0x8c/0xa0
[ 113.774317][ T662] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 113.774543][ T662] ? copy_msghdr_from_user+0x110/0x110
[ 113.774848][ T662] ? find_held_lock+0x2b/0x80
[ 113.775050][ T662] ? __lock_acquire+0x449/0x7e0
[ 113.775237][ T662] ? find_held_lock+0x2b/0x80
[ 113.775424][ T662] ? __virt_addr_valid+0x22a/0x450
[ 113.775615][ T662] ? __lock_release+0x5d/0x170
[ 113.775801][ T662] __sys_sendmsg+0x10b/0x1a0
[ 113.775995][ T662] ? __call_rcu_common.constprop.0+0x318/0x630
[ 113.776251][ T662] ? __sys_sendmsg_sock+0x20/0x20
[ 113.776545][ T662] ? rcu_is_watching+0x12/0xb0
[ 113.776736][ T662] do_syscall_64+0xc1/0xfd0
[ 113.776937][ T662] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 113.777169][ T662] RIP: 0033:0x7f977da441d7
[ 113.777369][ T662] 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
[ 113.778007][ T662] RSP: 002b:00007ffc6de395d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 113.778297][ T662] RAX: ffffffffffffffda RBX: 00007ffc6de39d00 RCX: 00007f977da441d7
[ 113.778582][ T662] RDX: 0000000000000000 RSI: 00007ffc6de39640 RDI: 0000000000000005
[ 113.778946][ T662] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 113.779213][ T662] R10: 00007f977d940f60 R11: 0000000000000246 R12: 0000000000000002
[ 113.779469][ T662] R13: 00000000690df582 R14: 0000000000499600 R15: 0000000000000000
[ 113.779830][ T662]
[ 113.779984][ T662] irq event stamp: 45085
[ 113.780132][ T662] hardirqs last enabled at (45085): [] finish_task_switch.isra.0+0x245/0x960
[ 113.780563][ T662] hardirqs last disabled at (45084): [] __schedule+0x94a/0x1b10
[ 113.780875][ T662] softirqs last enabled at (44874): [] handle_softirqs+0x352/0x610
[ 113.781275][ T662] softirqs last disabled at (44867): [] irq_exit_rcu+0xab/0x100
[ 113.781572][ T662] ---[ end trace 0000000000000000 ]---
[ 113.787035][ T662] ip (662) used greatest stack depth: 24232 bytes left