Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   54.665135][ T8380] IPVS: ftp: loaded support on port[0] = 21
[   54.731952][ T8380] list_del corruption. prev->next should be ffff888014175068, but was ffff888013316040
[   54.742732][ T8380] ------------[ cut here ]------------
[   54.748251][ T8380] kernel BUG at lib/list_debug.c:51!
[   54.753538][ T8380] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   54.759594][ T8380] CPU: 1 PID: 8380 Comm: syz-executor498 Not tainted 5.12.0-rc5-syzkaller #0
[   54.768539][ T8380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.778938][ T8380] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4a
[   54.785449][ T8380] Code: e8 46 b8 f2 ff 0f 0b 48 89 f1 48 c7 c7 c0 1a c2 89 4c 89 e6 e8 32 b8 f2 ff 0f 0b 48 89 ee 48 c7 c7 60 1c c2 89 e8 21 b8 f2 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 1b c2 89 e8 0d b8 f2 ff 0f 0b
[   54.805217][ T8380] RSP: 0018:ffffc90000edf930 EFLAGS: 00010282
[   54.811262][ T8380] RAX: 0000000000000054 RBX: 0000000000000001 RCX: 0000000000000000
[   54.819565][ T8380] RDX: ffff88801c4f3880 RSI: ffffffff815c4cf5 RDI: fffff520001dbf18
[   54.827513][ T8380] RBP: ffff888014175068 R08: 0000000000000054 R09: 0000000000000000
[   54.835458][ T8380] R10: ffffffff815bda8e R11: 0000000000000000 R12: ffff888021143068
[   54.843587][ T8380] R13: ffff888021143068 R14: ffff888014175060 R15: 0000000000000000
[   54.851545][ T8380] FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   54.860457][ T8380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.867025][ T8380] CR2: 0000556600a788e8 CR3: 0000000014986000 CR4: 0000000000350ee0
[   54.874982][ T8380] Call Trace:
[   54.878329][ T8380]  klist_release+0x66/0x480
[   54.882822][ T8380]  ? __device_link_free_srcu+0x120/0x120
[   54.888442][ T8380]  klist_put+0xf7/0x1d0
[   54.892584][ T8380]  device_del+0x245/0xd40
[   54.896898][ T8380]  ? klist_iter_exit+0xc/0x80
[   54.901561][ T8380]  ? __device_links_queue_sync_state+0x3f0/0x3f0
[   54.907877][ T8380]  hci_conn_del_sysfs+0xdc/0x180
[   54.912802][ T8380]  hci_conn_cleanup+0x2e7/0x6c0
[   54.917639][ T8380]  hci_conn_del+0x2a0/0x790
[   54.922135][ T8380]  hci_conn_hash_flush+0x19c/0x260
[   54.927233][ T8380]  hci_dev_do_close+0x569/0x1110
[   54.932157][ T8380]  ? hci_dev_open+0x300/0x300
[   54.936816][ T8380]  ? do_raw_read_unlock+0x70/0x70
[   54.941831][ T8380]  hci_unregister_dev+0x263/0x1130
[   54.947104][ T8380]  ? fsnotify+0x1070/0x1070
[   54.951596][ T8380]  ? hci_bdaddr_list_clear+0x200/0x200
[   54.957041][ T8380]  ? fcntl_setlk+0xe90/0xe90
[   54.961618][ T8380]  vhci_release+0x70/0xe0
[   54.965932][ T8380]  __fput+0x288/0x920
[   54.969904][ T8380]  ? vhci_close_dev+0x50/0x50
[   54.974571][ T8380]  task_work_run+0xdd/0x1a0
[   54.979062][ T8380]  do_exit+0xbfc/0x2a60
[   54.983207][ T8380]  ? mm_update_next_owner+0x7a0/0x7a0
[   54.988565][ T8380]  ? lock_downgrade+0x6e0/0x6e0
[   54.993407][ T8380]  do_group_exit+0x125/0x310
[   54.997991][ T8380]  __x64_sys_exit_group+0x3a/0x50
[   55.003000][ T8380]  do_syscall_64+0x2d/0x70
[   55.007408][ T8380]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   55.013293][ T8380] RIP: 0033:0x4443c9
[   55.017170][ T8380] Code: Unable to access opcode bytes at RIP 0x44439f.
[   55.023996][ T8380] RSP: 002b:00007fff79df2b38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   55.032390][ T8380] RAX: ffffffffffffffda RBX: 00000000004cb370 RCX: 00000000004443c9
[   55.040343][ T8380] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   55.048295][ T8380] RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 000000ff00000001
[   55.056250][ T8380] R10: 00007fff79df2600 R11: 0000000000000246 R12: 00000000004cb370
[   55.064200][ T8380] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   55.072157][ T8380] Modules linked in:
[   55.076085][ T8380] ---[ end trace e0124b10d5f008c2 ]---
[   55.081549][ T8380] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4a
[   55.087920][ T8380] Code: e8 46 b8 f2 ff 0f 0b 48 89 f1 48 c7 c7 c0 1a c2 89 4c 89 e6 e8 32 b8 f2 ff 0f 0b 48 89 ee 48 c7 c7 60 1c c2 89 e8 21 b8 f2 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 1b c2 89 e8 0d b8 f2 ff 0f 0b
[   55.107549][ T8380] RSP: 0018:ffffc90000edf930 EFLAGS: 00010282
[   55.113625][ T8380] RAX: 0000000000000054 RBX: 0000000000000001 RCX: 0000000000000000
[   55.121619][ T8380] RDX: ffff88801c4f3880 RSI: ffffffff815c4cf5 RDI: fffff520001dbf18
[   55.129796][ T8380] RBP: ffff888014175068 R08: 0000000000000054 R09: 0000000000000000
[   55.138335][ T8380] R10: ffffffff815bda8e R11: 0000000000000000 R12: ffff888021143068
[   55.146329][ T8380] R13: ffff888021143068 R14: ffff888014175060 R15: 0000000000000000
[   55.155152][ T8380] FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   55.164092][ T8380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.170701][ T8380] CR2: 0000556600a788e8 CR3: 0000000014986000 CR4: 0000000000350ee0
[   55.179384][ T8380] Kernel panic - not syncing: Fatal exception
[   55.189666][ T8380] Kernel Offset: disabled
[   55.194062][ T8380] Rebooting in 86400 seconds..