[ 18.239726][ T231] ==================================================================
[ 18.240060][ T231] BUG: KASAN: out-of-bounds in kobject_put+0xbb/0xd0
[ 18.240267][ T231] Read of size 1 at addr ffff88800a27c68c by task packetdrill/231
[ 18.240502][ T231]
[ 18.240604][ T231] CPU: 3 UID: 0 PID: 231 Comm: packetdrill Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.240610][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.240612][ T231] Call Trace:
[ 18.240614][ T231]
[ 18.240616][ T231] dump_stack_lvl+0x82/0xc0
[ 18.240622][ T231] print_address_description.constprop.0+0x2c/0x3a0
[ 18.240631][ T231] ? kobject_put+0xbb/0xd0
[ 18.240634][ T231] print_report+0xb4/0x270
[ 18.240638][ T231] ? kobject_put+0xbb/0xd0
[ 18.240641][ T231] ? kasan_addr_to_slab+0x21/0x70
[ 18.240644][ T231] ? kobject_put+0xbb/0xd0
[ 18.240647][ T231] kasan_report+0xca/0x100
[ 18.240651][ T231] ? kobject_put+0xbb/0xd0
[ 18.240657][ T231] kobject_put+0xbb/0xd0
[ 18.240660][ T231] netdev_run_todo+0x5f0/0xc60
[ 18.240667][ T231] ? rtnl_is_locked+0x15/0x20
[ 18.240671][ T231] ? netif_state_change+0x228/0x2c0
[ 18.240674][ T231] ? call_netdevice_notifiers_info+0x100/0x100
[ 18.240677][ T231] ? generic_xdp_install+0x410/0x410
[ 18.240681][ T231] ? tun_chr_close+0xae/0x1c0
[ 18.240689][ T231] tun_chr_close+0xc0/0x1c0
[ 18.240693][ T231] __fput+0x35c/0xa70
[ 18.240701][ T231] fput_close_sync+0xdd/0x1b0
[ 18.240705][ T231] ? alloc_file_clone+0xf0/0xf0
[ 18.240709][ T231] __x64_sys_close+0x7d/0xd0
[ 18.240713][ T231] do_syscall_64+0xc1/0xfd0
[ 18.240720][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.240724][ T231] RIP: 0033:0x4901eb
[ 18.240728][ T231] Code: 03 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 c3 78 04 00 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 21 79 04 00 8b 44
[ 18.240731][ T231] RSP: 002b:00007ffded0091b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 18.240735][ T231] RAX: ffffffffffffffda RBX: 00007ffded009710 RCX: 00000000004901eb
[ 18.240737][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 18.240739][ T231] RBP: 00007ffded0091f0 R08: 0000000000000000 R09: 0000000000000000
[ 18.240741][ T231] R10: 0000000002000000 R11: 0000000000000293 R12: 00007ffded009688
[ 18.240742][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 18.240749][ T231]
[ 18.240750][ T231]
[ 18.247949][ T231] The buggy address belongs to the physical page:
[ 18.248154][ T231] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800a27db40 pfn:0xa27c
[ 18.248468][ T231] flags: 0x80000000000000(node=0|zone=1)
[ 18.248661][ T231] raw: 0080000000000000 0000000000000000 dead000000000122 0000000000000000
[ 18.248946][ T231] raw: ffff88800a27db40 0000000000000000 00000001ffffffff 0000000000000000
[ 18.249232][ T231] page dumped because: kasan: bad access detected
[ 18.249426][ T231]
[ 18.249506][ T231] Memory state around the buggy address:
[ 18.249671][ T231] ffff88800a27c580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 18.249901][ T231] ffff88800a27c600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 18.250146][ T231] >ffff88800a27c680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 18.250371][ T231] ^
[ 18.250522][ T231] ffff88800a27c700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 18.250752][ T231] ffff88800a27c780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 18.250981][ T231] ==================================================================
[ 18.251234][ T231] Disabling lock debugging due to kernel taint
[ 18.251450][ T231] ------------[ cut here ]------------
[ 18.251612][ T231] kobject: '1u[]Í' (ffff88800a27c650): is not initialized, yet kobject_put() is being called.
[ 18.252073][ T231] WARNING: CPU: 3 PID: 231 at lib/kobject.c:734 kobject_put+0x9f/0xd0
[ 18.252316][ T231] Modules linked in:
[ 18.252438][ T231] CPU: 3 UID: 0 PID: 231 Comm: packetdrill Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.252788][ T231] Tainted: [B]=BAD_PAGE
[ 18.252913][ T231] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.253131][ T231] RIP: 0010:kobject_put+0x9f/0xd0
[ 18.253291][ T231] Code: b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 75 35 48 8b 75 00 48 89 ea 48 c7 c7 20 30 6f ae e8 42 dd f7 fd 90 <0f> 0b 90 90 eb 9b c3 4c 89 e7 5d be 03 00 00 00 41 5c e9 8a 1c df
[ 18.253840][ T231] RSP: 0018:ffffc90000af7ce8 EFLAGS: 00010282
[ 18.254051][ T231] RAX: 0000000000000000 RBX: ffff88800a27c000 RCX: 0000000000000000
[ 18.254280][ T231] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 18.254508][ T231] RBP: ffff88800a27c650 R08: 0000000000000000 R09: fffffbfff5dbe134
[ 18.254743][ T231] R10: 0000000000000003 R11: ffffc90000af7880 R12: 0000000000000001
[ 18.254987][ T231] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 18.255216][ T231] FS: 00000000384083c0(0000) GS:ffff88808619a000(0000) knlGS:0000000000000000
[ 18.255483][ T231] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.255680][ T231] CR2: 00007fd24101a000 CR3: 000000000a2f6006 CR4: 0000000000772ef0
[ 18.255914][ T231] PKRU: 55555554
[ 18.256044][ T231] Call Trace:
[ 18.256159][ T231]
[ 18.256237][ T231] netdev_run_todo+0x5f0/0xc60
[ 18.256396][ T231] ? rtnl_is_locked+0x15/0x20
[ 18.256557][ T231] ? netif_state_change+0x228/0x2c0
[ 18.256710][ T231] ? call_netdevice_notifiers_info+0x100/0x100
[ 18.256903][ T231] ? generic_xdp_install+0x410/0x410
[ 18.257065][ T231] ? tun_chr_close+0xae/0x1c0
[ 18.257221][ T231] tun_chr_close+0xc0/0x1c0
[ 18.257372][ T231] __fput+0x35c/0xa70
[ 18.257491][ T231] fput_close_sync+0xdd/0x1b0
[ 18.257655][ T231] ? alloc_file_clone+0xf0/0xf0
[ 18.257811][ T231] __x64_sys_close+0x7d/0xd0
[ 18.258012][ T231] do_syscall_64+0xc1/0xfd0
[ 18.258167][ T231] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 18.258355][ T231] RIP: 0033:0x4901eb
[ 18.258477][ T231] Code: 03 00 00 00 0f 05 48 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 c3 78 04 00 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 21 79 04 00 8b 44
[ 18.259043][ T231] RSP: 002b:00007ffded0091b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[ 18.259278][ T231] RAX: ffffffffffffffda RBX: 00007ffded009710 RCX: 00000000004901eb
[ 18.259535][ T231] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000005
[ 18.259768][ T231] RBP: 00007ffded0091f0 R08: 0000000000000000 R09: 0000000000000000
[ 18.260018][ T231] R10: 0000000002000000 R11: 0000000000000293 R12: 00007ffded009688
[ 18.260245][ T231] R13: 0000000000000001 R14: 000000000054e030 R15: 0000000000000001
[ 18.260474][ T231]
[ 18.260597][ T231] irq event stamp: 1017001
[ 18.260748][ T231] hardirqs last enabled at (1017001): [] irqentry_exit+0x3b/0x80
[ 18.261071][ T231] hardirqs last disabled at (1017000): [] handle_softirqs+0x47f/0x610
[ 18.261340][ T231] softirqs last enabled at (1016812): [] __tun_set_ebpf+0xc6/0x180
[ 18.261622][ T231] softirqs last disabled at (1016810): [] __tun_set_ebpf+0x91/0x180
[ 18.261914][ T231] ---[ end trace 0000000000000000 ]---
[ 18.293994][ T12] ------------[ cut here ]------------
[ 18.294313][ T12] refcount_t: underflow; use-after-free.
[ 18.294614][ T12] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 18.295243][ T12] Modules linked in:
[ 18.295468][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B W 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 18.296095][ T12] Tainted: [B]=BAD_PAGE, [W]=WARN
[ 18.296359][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.296688][ T12] Workqueue: netns cleanup_net
[ 18.296998][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 18.297352][ T12] Code: 3f 92 02 80 fb 01 0f 87 bb b9 d9 fe 83 e3 01 0f 85 51 ff ff ff c6 05 5e 3f 92 02 01 90 48 c7 c7 20 8d 45 ae 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
[ 18.298331][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 18.298675][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 18.299082][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 18.299490][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff5dbe134
[ 18.299919][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 18.300317][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 18.300718][ T12] FS: 0000000000000000(0000) GS:ffff88808601a000(0000) knlGS:0000000000000000
[ 18.301195][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.301567][ T12] CR2: 0000556e9dfe1dec CR3: 0000000002331002 CR4: 0000000000772ef0
[ 18.301984][ T12] PKRU: 55555554
[ 18.302185][ T12] Call Trace:
[ 18.302391][ T12]
[ 18.302534][ T12] netdev_run_todo+0x5f0/0xc60
[ 18.302824][ T12] ? net_generic+0xb1/0x1f0
[ 18.303100][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 18.303378][ T12] ? trace_lock_release+0x26/0xc0
[ 18.303647][ T12] ? generic_xdp_install+0x410/0x410
[ 18.303933][ T12] ops_undo_list+0x714/0x890
[ 18.304196][ T12] ? do_raw_spin_lock+0x130/0x270
[ 18.304474][ T12] ? netns_get+0x110/0x110
[ 18.304748][ T12] ? spin_bug+0x1d0/0x1d0
[ 18.304974][ T12] ? cleanup_net+0x2d6/0x830
[ 18.305243][ T12] ? rcu_is_watching+0x12/0xb0
[ 18.305526][ T12] cleanup_net+0x3b2/0x830
[ 18.305806][ T12] ? net_passive_dec+0x190/0x190
[ 18.306092][ T12] ? rcu_is_watching+0x12/0xb0
[ 18.306364][ T12] process_one_work+0xe35/0x1650
[ 18.306652][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 18.306942][ T12] ? assign_work+0x168/0x240
[ 18.307221][ T12] worker_thread+0x591/0xcf0
[ 18.307490][ T12] ? rescuer_thread+0xd10/0xd10
[ 18.307777][ T12] kthread+0x37b/0x5f0
[ 18.307998][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.308261][ T12] ? ret_from_fork+0x1b/0x270
[ 18.308529][ T12] ? __lock_release+0x5d/0x170
[ 18.308797][ T12] ? rcu_is_watching+0x12/0xb0
[ 18.309084][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.309359][ T12] ret_from_fork+0x1db/0x270
[ 18.309626][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.309909][ T12] ret_from_fork_asm+0x11/0x20
[ 18.310189][ T12]
[ 18.310398][ T12] irq event stamp: 438
[ 18.310611][ T12] hardirqs last enabled at (437): [] _raw_spin_unlock_irq+0x28/0x50
[ 18.311091][ T12] hardirqs last disabled at (438): [] __schedule+0x94a/0x1b10
[ 18.311566][ T12] softirqs last enabled at (434): [] __fib6_clean_all+0xe5/0x260
[ 18.312039][ T12] softirqs last disabled at (428): [] __fib6_clean_all+0xc4/0x260
[ 18.312453][ T12] ---[ end trace 0000000000000000 ]---