[ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.68' (ECDSA) to the list of known hosts. 2021/08/13 22:50:15 parsed 1 programs 2021/08/13 22:50:16 executed programs: 0 syzkaller login: [ 1584.189997][ T8456] chnl_net:caif_netlink_parms(): no params data found [ 1584.239713][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 1584.247849][ T8456] bridge0: port 1(bridge_slave_0) entered disabled state [ 1584.255651][ T8456] device bridge_slave_0 entered promiscuous mode [ 1584.265704][ T8456] bridge0: port 2(bridge_slave_1) entered blocking state [ 1584.273589][ T8456] bridge0: port 2(bridge_slave_1) entered disabled state [ 1584.281971][ T8456] device bridge_slave_1 entered promiscuous mode [ 1584.302850][ T8456] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1584.314414][ T8456] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1584.336383][ T8456] team0: Port device team_slave_0 added [ 1584.343397][ T8456] team0: Port device team_slave_1 added [ 1584.360615][ T8456] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1584.367657][ T8456] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1584.393840][ T8456] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1584.406781][ T8456] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1584.413753][ T8456] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1584.439916][ T8456] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1584.465953][ T8456] device hsr_slave_0 entered promiscuous mode [ 1584.472591][ T8456] device hsr_slave_1 entered promiscuous mode [ 1584.569119][ T8456] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1584.580027][ T8456] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1584.589643][ T8456] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1584.599704][ T8456] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1584.620090][ T8456] bridge0: port 2(bridge_slave_1) entered blocking state [ 1584.627229][ T8456] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1584.634816][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 1584.641956][ T8456] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1584.679432][ T8456] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1584.694237][ T8456] 8021q: adding VLAN 0 to HW filter on device team0 [ 1584.703010][ T2951] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1584.714199][ T2951] bridge0: port 1(bridge_slave_0) entered disabled state [ 1584.722684][ T2951] bridge0: port 2(bridge_slave_1) entered disabled state [ 1584.731221][ T2951] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1584.744609][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1584.753736][ T8431] bridge0: port 1(bridge_slave_0) entered blocking state [ 1584.761005][ T8431] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1584.773277][ T8678] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1584.781955][ T8678] bridge0: port 2(bridge_slave_1) entered blocking state [ 1584.789163][ T8678] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1584.807089][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1584.815897][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1584.834661][ T8456] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1584.845173][ T8456] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1584.859091][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1584.867640][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1584.877029][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1584.885256][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1584.907167][ T8456] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1584.914647][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1584.923095][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1584.942147][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1584.960730][ T8678] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1584.969291][ T8678] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1584.979075][ T8678] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1584.989959][ T8456] device veth0_vlan entered promiscuous mode [ 1585.001832][ T8456] device veth1_vlan entered promiscuous mode [ 1585.020974][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1585.029097][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1585.038664][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1585.050560][ T8456] device veth0_macvtap entered promiscuous mode [ 1585.060925][ T8456] device veth1_macvtap entered promiscuous mode [ 1585.075082][ T8456] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1585.083889][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1585.093711][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1585.104487][ T8456] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1585.112834][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1585.124191][ T8456] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1585.133335][ T8456] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1585.143573][ T8456] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1585.152456][ T8456] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1585.229505][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1585.238938][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1585.264180][ T2951] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1585.300171][ T50] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1585.308447][ T50] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1585.318425][ T2951] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1586.065711][ T8681] Bluetooth: hci0: command 0x0409 tx timeout 2021/08/13 22:50:21 executed programs: 86 [ 1588.126296][ T8680] Bluetooth: hci0: command 0x041b tx timeout [ 1590.207048][ T8680] Bluetooth: hci0: command 0x040f tx timeout [ 1592.297333][ T8681] Bluetooth: hci0: command 0x0419 tx timeout 2021/08/13 22:50:26 executed programs: 266 2021/08/13 22:50:31 executed programs: 456 2021/08/13 22:50:36 executed programs: 648 [ 1606.925953][ T3256] ieee802154 phy0 wpan0: encryption failed: -22 [ 1606.932460][ T3256] ieee802154 phy1 wpan1: encryption failed: -22 2021/08/13 22:50:41 executed programs: 833 [ 1608.088311][ T8456] ================================================================== [ 1608.096432][ T8456] BUG: KASAN: use-after-free in __lock_acquire+0xfe/0x6100 [ 1608.103759][ T8456] Read of size 8 at addr ffff88802f2350a0 by task syz-executor.0/8456 [ 1608.111890][ T8456] [ 1608.114193][ T8456] CPU: 0 PID: 8456 Comm: syz-executor.0 Not tainted 5.14.0-rc5-syzkaller #0 [ 1608.122851][ T8456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1608.132889][ T8456] Call Trace: [ 1608.136157][ T8456] dump_stack_lvl+0x1ae/0x29f [ 1608.140935][ T8456] ? show_regs_print_info+0x12/0x12 [ 1608.146126][ T8456] ? printk+0xc0/0x108 [ 1608.150233][ T8456] ? wake_up_klogd+0xb2/0xf0 [ 1608.154804][ T8456] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1608.160505][ T8456] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1608.165989][ T8456] ? _raw_spin_lock+0x40/0x40 [ 1608.170645][ T8456] print_address_description+0x66/0x3b0 [ 1608.176206][ T8456] kasan_report+0x163/0x210 [ 1608.180697][ T8456] ? __lock_acquire+0xfe/0x6100 [ 1608.185540][ T8456] __lock_acquire+0xfe/0x6100 [ 1608.190258][ T8456] ? del_timer+0x7e/0x390 [ 1608.194778][ T8456] ? rcu_read_lock_sched_held+0x87/0x110 [ 1608.200464][ T8456] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1608.206432][ T8456] ? trace_lock_acquire+0x190/0x190 [ 1608.211612][ T8456] ? mark_lock+0x199/0x1eb0 [ 1608.216100][ T8456] ? __bfs+0x700/0x700 [ 1608.220176][ T8456] ? do_raw_spin_unlock+0x134/0x8a0 [ 1608.225366][ T8456] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1608.230810][ T8456] ? rcu_read_lock_sched_held+0x87/0x110 [ 1608.236421][ T8456] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1608.242377][ T8456] ? del_timer+0x14f/0x390 [ 1608.246789][ T8456] lock_acquire+0x182/0x4a0 [ 1608.251295][ T8456] ? lock_sock_nested+0x48/0x110 [ 1608.256365][ T8456] ? lockdep_softirqs_on+0x550/0x550 [ 1608.261636][ T8456] ? read_lock_is_recursive+0x10/0x10 [ 1608.266994][ T8456] ? __local_bh_disable_ip+0x130/0x1c0 [ 1608.272496][ T8456] ? __bpf_trace_softirq+0x10/0x10 [ 1608.277599][ T8456] ? cancel_delayed_work+0x252/0x360 [ 1608.282926][ T8456] ? lockdep_hardirqs_on+0x8d/0x130 [ 1608.288145][ T8456] ? cancel_delayed_work+0x2be/0x360 [ 1608.293412][ T8456] ? lock_sock_nested+0x48/0x110 [ 1608.298338][ T8456] _raw_spin_lock_bh+0x31/0x40 [ 1608.303091][ T8456] ? lock_sock_nested+0x48/0x110 [ 1608.308011][ T8456] lock_sock_nested+0x48/0x110 [ 1608.312753][ T8456] l2cap_sock_teardown_cb+0x76/0x360 [ 1608.318093][ T8456] l2cap_chan_del+0xaf/0x610 [ 1608.322676][ T8456] l2cap_conn_del+0x406/0x650 [ 1608.327352][ T8456] ? l2cap_connect_cfm+0x5c0/0x5c0 [ 1608.332454][ T8456] hci_conn_hash_flush+0x112/0x240 [ 1608.337659][ T8456] hci_dev_do_close+0x905/0x1010 [ 1608.342585][ T8456] hci_unregister_dev+0x2a2/0x510 [ 1608.347610][ T8456] vhci_release+0x73/0xc0 [ 1608.351979][ T8456] ? vhci_open+0x290/0x290 [ 1608.356384][ T8456] __fput+0x352/0x7b0 [ 1608.360412][ T8456] task_work_run+0x146/0x1c0 [ 1608.365005][ T8456] do_exit+0x72b/0x2510 [ 1608.369136][ T8456] ? __context_tracking_enter+0xa5/0xf0 [ 1608.374659][ T8456] ? mm_update_next_owner+0x6d0/0x6d0 [ 1608.380020][ T8456] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1608.385979][ T8456] ? print_irqtrace_events+0x220/0x220 [ 1608.391416][ T8456] ? vtime_user_exit+0x2b2/0x3e0 [ 1608.396379][ T8456] do_group_exit+0x168/0x2d0 [ 1608.400949][ T8456] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 1608.406941][ T8456] __do_sys_exit_group+0x13/0x20 [ 1608.411874][ T8456] __se_sys_exit_group+0x10/0x10 [ 1608.416791][ T8456] __x64_sys_exit_group+0x37/0x40 [ 1608.421878][ T8456] do_syscall_64+0x3d/0xb0 [ 1608.426316][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.432191][ T8456] RIP: 0033:0x4665e9 [ 1608.436085][ T8456] Code: Unable to access opcode bytes at RIP 0x4665bf. [ 1608.442911][ T8456] RSP: 002b:00007ffce66a70b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1608.451307][ T8456] RAX: ffffffffffffffda RBX: 00000000000009d6 RCX: 00000000004665e9 [ 1608.459272][ T8456] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1608.467223][ T8456] RBP: 0000000000000000 R08: 0000000000000014 R09: 00000000000009d6 [ 1608.475258][ T8456] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bfe0f [ 1608.483224][ T8456] R13: 0000000000000000 R14: 0000000000000004 R15: 00007ffce66a72b0 [ 1608.491197][ T8456] [ 1608.493501][ T8456] Allocated by task 11891: [ 1608.497907][ T8456] ____kasan_kmalloc+0xc4/0xf0 [ 1608.502657][ T8456] kmem_cache_alloc_trace+0x96/0x340 [ 1608.507935][ T8456] l2cap_chan_create+0x4c/0x480 [ 1608.512765][ T8456] l2cap_sock_alloc+0x136/0x1d0 [ 1608.517591][ T8456] l2cap_sock_create+0x113/0x1d0 [ 1608.522500][ T8456] bt_sock_create+0x15b/0x220 [ 1608.527201][ T8456] __sock_create+0x580/0x8d0 [ 1608.531794][ T8456] __sys_socket+0x115/0x350 [ 1608.536271][ T8456] __x64_sys_socket+0x76/0x80 [ 1608.540922][ T8456] do_syscall_64+0x3d/0xb0 [ 1608.545325][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.551192][ T8456] [ 1608.553493][ T8456] Freed by task 11889: [ 1608.557535][ T8456] kasan_set_track+0x3d/0x70 [ 1608.562103][ T8456] kasan_set_free_info+0x1f/0x40 [ 1608.567025][ T8456] ____kasan_slab_free+0x109/0x150 [ 1608.572140][ T8456] slab_free_freelist_hook+0x1d8/0x290 [ 1608.577601][ T8456] kfree+0xd0/0x1f0 [ 1608.581449][ T8456] l2cap_sock_release+0x159/0x1c0 [ 1608.586464][ T8456] sock_close+0xd8/0x260 [ 1608.590689][ T8456] __fput+0x352/0x7b0 [ 1608.594652][ T8456] task_work_run+0x146/0x1c0 [ 1608.599309][ T8456] exit_to_user_mode_prepare+0x201/0x220 [ 1608.604919][ T8456] syscall_exit_to_user_mode+0x26/0x60 [ 1608.610352][ T8456] do_syscall_64+0x4c/0xb0 [ 1608.614765][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.620677][ T8456] [ 1608.622978][ T8456] Last potentially related work creation: [ 1608.628664][ T8456] kasan_save_stack+0x27/0x50 [ 1608.633314][ T8456] kasan_record_aux_stack+0xee/0x120 [ 1608.638574][ T8456] call_rcu+0x1a0/0xa20 [ 1608.642703][ T8456] netlink_release+0x132d/0x1790 [ 1608.647665][ T8456] sock_close+0xd8/0x260 [ 1608.651883][ T8456] __fput+0x352/0x7b0 [ 1608.655839][ T8456] task_work_run+0x146/0x1c0 [ 1608.660403][ T8456] do_exit+0x72b/0x2510 [ 1608.664532][ T8456] do_group_exit+0x168/0x2d0 [ 1608.669095][ T8456] __do_sys_exit_group+0x13/0x20 [ 1608.674006][ T8456] __ia32_sys_exit_group+0x0/0x40 [ 1608.679046][ T8456] __x64_sys_exit_group+0x37/0x40 [ 1608.684045][ T8456] do_syscall_64+0x3d/0xb0 [ 1608.688439][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.694331][ T8456] [ 1608.696636][ T8456] The buggy address belongs to the object at ffff88802f235000 [ 1608.696636][ T8456] which belongs to the cache kmalloc-2k of size 2048 [ 1608.710684][ T8456] The buggy address is located 160 bytes inside of [ 1608.710684][ T8456] 2048-byte region [ffff88802f235000, ffff88802f235800) [ 1608.724124][ T8456] The buggy address belongs to the page: [ 1608.729729][ T8456] page:ffffea0000bc8c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f230 [ 1608.739977][ T8456] head:ffffea0000bc8c00 order:3 compound_mapcount:0 compound_pincount:0 [ 1608.748277][ T8456] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 1608.756254][ T8456] raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888011042000 [ 1608.764813][ T8456] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 1608.773374][ T8456] page dumped because: kasan: bad access detected [ 1608.779769][ T8456] page_owner tracks the page as allocated [ 1608.785459][ T8456] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x52a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 8985, ts 1587522947872, free_ts 1586818694882 [ 1608.802806][ T8456] get_page_from_freelist+0x779/0xa30 [ 1608.808237][ T8456] __alloc_pages+0x26c/0x5f0 [ 1608.812809][ T8456] allocate_slab+0xf1/0x540 [ 1608.817307][ T8456] ___slab_alloc+0x1cf/0x350 [ 1608.821903][ T8456] __kmalloc+0x2e7/0x390 [ 1608.826128][ T8456] sk_prot_alloc+0xf4/0x230 [ 1608.830619][ T8456] sk_alloc+0x35/0x300 [ 1608.834678][ T8456] l2cap_sock_alloc+0x34/0x1d0 [ 1608.839428][ T8456] l2cap_sock_create+0x113/0x1d0 [ 1608.844570][ T8456] bt_sock_create+0x15b/0x220 [ 1608.849231][ T8456] __sock_create+0x580/0x8d0 [ 1608.853804][ T8456] __sys_socket+0x115/0x350 [ 1608.858284][ T8456] __x64_sys_socket+0x76/0x80 [ 1608.862938][ T8456] do_syscall_64+0x3d/0xb0 [ 1608.867333][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.873205][ T8456] page last free stack trace: [ 1608.877850][ T8456] free_pcp_prepare+0xc29/0xd20 [ 1608.882675][ T8456] free_unref_page+0x7e/0x550 [ 1608.887323][ T8456] __slab_free+0x5c0/0x6b0 [ 1608.891716][ T8456] ___cache_free+0xfc/0x120 [ 1608.896188][ T8456] kasan_quarantine_reduce+0x151/0x1c0 [ 1608.901629][ T8456] __kasan_slab_alloc+0x2f/0xd0 [ 1608.906468][ T8456] kmem_cache_alloc+0x1d1/0x340 [ 1608.911302][ T8456] getname_flags+0xba/0x640 [ 1608.915839][ T8456] do_symlinkat+0x7f/0x510 [ 1608.920233][ T8456] do_syscall_64+0x3d/0xb0 [ 1608.924758][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1608.930637][ T8456] [ 1608.932957][ T8456] Memory state around the buggy address: [ 1608.938566][ T8456] ffff88802f234f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1608.946605][ T8456] ffff88802f235000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1608.954645][ T8456] >ffff88802f235080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1608.962679][ T8456] ^ [ 1608.967777][ T8456] ffff88802f235100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1608.975815][ T8456] ffff88802f235180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1608.983862][ T8456] ================================================================== [ 1608.991892][ T8456] Disabling lock debugging due to kernel taint [ 1608.998187][ T8456] Kernel panic - not syncing: panic_on_warn set ... [ 1609.004830][ T8456] CPU: 0 PID: 8456 Comm: syz-executor.0 Tainted: G B 5.14.0-rc5-syzkaller #0 [ 1609.014864][ T8456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1609.024892][ T8456] Call Trace: [ 1609.028151][ T8456] dump_stack_lvl+0x1ae/0x29f [ 1609.032807][ T8456] ? show_regs_print_info+0x12/0x12 [ 1609.037989][ T8456] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1609.043695][ T8456] panic+0x2e1/0x850 [ 1609.047565][ T8456] ? nmi_panic+0x90/0x90 [ 1609.051781][ T8456] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1609.057650][ T8456] ? rcu_read_lock_sched_held+0x87/0x110 [ 1609.063270][ T8456] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1609.069240][ T8456] kasan_report+0x206/0x210 [ 1609.073720][ T8456] ? __lock_acquire+0xfe/0x6100 [ 1609.078548][ T8456] __lock_acquire+0xfe/0x6100 [ 1609.083200][ T8456] ? del_timer+0x7e/0x390 [ 1609.087515][ T8456] ? rcu_read_lock_sched_held+0x87/0x110 [ 1609.093123][ T8456] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1609.099079][ T8456] ? trace_lock_acquire+0x190/0x190 [ 1609.104251][ T8456] ? mark_lock+0x199/0x1eb0 [ 1609.108728][ T8456] ? __bfs+0x700/0x700 [ 1609.112784][ T8456] ? do_raw_spin_unlock+0x134/0x8a0 [ 1609.117967][ T8456] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1609.123416][ T8456] ? rcu_read_lock_sched_held+0x87/0x110 [ 1609.129045][ T8456] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1609.135016][ T8456] ? del_timer+0x14f/0x390 [ 1609.139410][ T8456] lock_acquire+0x182/0x4a0 [ 1609.143893][ T8456] ? lock_sock_nested+0x48/0x110 [ 1609.148807][ T8456] ? lockdep_softirqs_on+0x550/0x550 [ 1609.154077][ T8456] ? read_lock_is_recursive+0x10/0x10 [ 1609.159441][ T8456] ? __local_bh_disable_ip+0x130/0x1c0 [ 1609.164881][ T8456] ? __bpf_trace_softirq+0x10/0x10 [ 1609.169972][ T8456] ? cancel_delayed_work+0x252/0x360 [ 1609.175232][ T8456] ? lockdep_hardirqs_on+0x8d/0x130 [ 1609.180417][ T8456] ? cancel_delayed_work+0x2be/0x360 [ 1609.185673][ T8456] ? lock_sock_nested+0x48/0x110 [ 1609.190591][ T8456] _raw_spin_lock_bh+0x31/0x40 [ 1609.195329][ T8456] ? lock_sock_nested+0x48/0x110 [ 1609.200243][ T8456] lock_sock_nested+0x48/0x110 [ 1609.204986][ T8456] l2cap_sock_teardown_cb+0x76/0x360 [ 1609.210250][ T8456] l2cap_chan_del+0xaf/0x610 [ 1609.214823][ T8456] l2cap_conn_del+0x406/0x650 [ 1609.219907][ T8456] ? l2cap_connect_cfm+0x5c0/0x5c0 [ 1609.224991][ T8456] hci_conn_hash_flush+0x112/0x240 [ 1609.230098][ T8456] hci_dev_do_close+0x905/0x1010 [ 1609.235023][ T8456] hci_unregister_dev+0x2a2/0x510 [ 1609.240020][ T8456] vhci_release+0x73/0xc0 [ 1609.244324][ T8456] ? vhci_open+0x290/0x290 [ 1609.248717][ T8456] __fput+0x352/0x7b0 [ 1609.252677][ T8456] task_work_run+0x146/0x1c0 [ 1609.257246][ T8456] do_exit+0x72b/0x2510 [ 1609.261377][ T8456] ? __context_tracking_enter+0xa5/0xf0 [ 1609.266904][ T8456] ? mm_update_next_owner+0x6d0/0x6d0 [ 1609.272267][ T8456] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1609.278228][ T8456] ? print_irqtrace_events+0x220/0x220 [ 1609.283679][ T8456] ? vtime_user_exit+0x2b2/0x3e0 [ 1609.288610][ T8456] do_group_exit+0x168/0x2d0 [ 1609.293188][ T8456] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 1609.299157][ T8456] __do_sys_exit_group+0x13/0x20 [ 1609.304084][ T8456] __se_sys_exit_group+0x10/0x10 [ 1609.308996][ T8456] __x64_sys_exit_group+0x37/0x40 [ 1609.313997][ T8456] do_syscall_64+0x3d/0xb0 [ 1609.318396][ T8456] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1609.324276][ T8456] RIP: 0033:0x4665e9 [ 1609.328146][ T8456] Code: Unable to access opcode bytes at RIP 0x4665bf. [ 1609.334976][ T8456] RSP: 002b:00007ffce66a70b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1609.343372][ T8456] RAX: ffffffffffffffda RBX: 00000000000009d6 RCX: 00000000004665e9 [ 1609.351318][ T8456] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1609.359282][ T8456] RBP: 0000000000000000 R08: 0000000000000014 R09: 00000000000009d6 [ 1609.367227][ T8456] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bfe0f [ 1609.375182][ T8456] R13: 0000000000000000 R14: 0000000000000004 R15: 00007ffce66a72b0 [ 1609.384421][ T8456] Kernel Offset: disabled [ 1609.388741][ T8456] Rebooting in 86400 seconds..