Warning: Permanently added '10.128.0.222' (ECDSA) to the list of known hosts. 2021/08/24 12:25:08 parsed 1 programs 2021/08/24 12:25:09 executed programs: 0 syzkaller login: [ 1581.189186][ T8449] chnl_net:caif_netlink_parms(): no params data found [ 1581.254052][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.263177][ T8449] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.273709][ T8449] device bridge_slave_0 entered promiscuous mode [ 1581.283959][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.291221][ T8449] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.299134][ T8449] device bridge_slave_1 entered promiscuous mode [ 1581.321327][ T8449] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1581.332742][ T8449] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1581.355797][ T8449] team0: Port device team_slave_0 added [ 1581.363205][ T8449] team0: Port device team_slave_1 added [ 1581.381312][ T8449] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1581.388539][ T8449] 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. [ 1581.415898][ T8449] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1581.430766][ T8449] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1581.438827][ T8449] 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. [ 1581.466212][ T8449] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1581.492513][ T8449] device hsr_slave_0 entered promiscuous mode [ 1581.500300][ T8449] device hsr_slave_1 entered promiscuous mode [ 1581.609873][ T8449] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1581.620684][ T8449] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1581.633861][ T8449] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1581.644615][ T8449] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1581.669689][ T8449] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.677211][ T8449] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.685133][ T8449] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.692404][ T8449] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.734762][ T8449] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1581.749452][ T8482] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1581.762039][ T8482] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.772169][ T8482] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.781971][ T8482] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1581.796121][ T8449] 8021q: adding VLAN 0 to HW filter on device team0 [ 1581.809495][ T8589] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1581.818128][ T8589] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.825166][ T8589] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.838666][ T8669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1581.849252][ T8669] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.856469][ T8669] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.878042][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1581.889206][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1581.908604][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1581.918006][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1581.926182][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1581.936620][ T8449] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1581.955560][ T8589] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1581.964109][ T8589] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1581.978954][ T8449] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1581.996636][ T8589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1582.016073][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1582.024480][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1582.032297][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1582.043136][ T8449] device veth0_vlan entered promiscuous mode [ 1582.056048][ T8449] device veth1_vlan entered promiscuous mode [ 1582.075959][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1582.085075][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1582.094414][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1582.107436][ T8449] device veth0_macvtap entered promiscuous mode [ 1582.116575][ T8449] device veth1_macvtap entered promiscuous mode [ 1582.135505][ T8449] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1582.143310][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1582.154173][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1582.167921][ T8449] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1582.178098][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1582.187150][ T2949] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1582.198079][ T8449] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.207434][ T8449] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.216290][ T8449] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.225775][ T8449] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.327747][ T8673] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.335770][ T8673] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.348788][ T8669] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1582.390868][ T119] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.399488][ T119] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.410515][ T8670] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1583.057961][ T8670] Bluetooth: hci0: command 0x0409 tx timeout 2021/08/24 12:25:14 executed programs: 76 [ 1585.126723][ T8670] Bluetooth: hci0: command 0x041b tx timeout [ 1587.207850][ T8670] Bluetooth: hci0: command 0x040f tx timeout [ 1589.296329][ T8670] Bluetooth: hci0: command 0x0419 tx timeout 2021/08/24 12:25:19 executed programs: 246 2021/08/24 12:25:24 executed programs: 417 2021/08/24 12:25:29 executed programs: 593 2021/08/24 12:25:34 executed programs: 765 [ 1607.606342][ T3259] ieee802154 phy0 wpan0: encryption failed: -22 [ 1607.613068][ T3259] ieee802154 phy1 wpan1: encryption failed: -22 2021/08/24 12:25:39 executed programs: 938 2021/08/24 12:25:44 executed programs: 1107 2021/08/24 12:25:49 executed programs: 1286 2021/08/24 12:25:54 executed programs: 1465 2021/08/24 12:25:59 executed programs: 1641 2021/08/24 12:26:04 executed programs: 1815 2021/08/24 12:26:09 executed programs: 1988 2021/08/24 12:26:14 executed programs: 2165 2021/08/24 12:26:19 executed programs: 2342 2021/08/24 12:26:24 executed programs: 2512 2021/08/24 12:26:29 executed programs: 2690 [ 1664.760863][ T8449] ================================================================== [ 1664.769139][ T8449] BUG: KASAN: use-after-free in __lock_acquire+0xfe/0x6100 [ 1664.776468][ T8449] Read of size 8 at addr ffff8880234f00a0 by task syz-executor.0/8449 [ 1664.785095][ T8449] [ 1664.787419][ T8449] CPU: 1 PID: 8449 Comm: syz-executor.0 Not tainted 5.14.0-rc7-syzkaller #0 [ 1664.796180][ T8449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1664.806643][ T8449] Call Trace: [ 1664.809983][ T8449] dump_stack_lvl+0x1ae/0x29f [ 1664.814738][ T8449] ? show_regs_print_info+0x12/0x12 [ 1664.819960][ T8449] ? printk+0xc0/0x108 [ 1664.824096][ T8449] ? wake_up_klogd+0xb2/0xf0 [ 1664.828799][ T8449] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1664.834961][ T8449] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1664.840515][ T8449] ? _raw_spin_lock+0x40/0x40 [ 1664.845237][ T8449] print_address_description+0x66/0x3b0 [ 1664.850992][ T8449] kasan_report+0x163/0x210 [ 1664.855577][ T8449] ? __lock_acquire+0xfe/0x6100 [ 1664.860437][ T8449] __lock_acquire+0xfe/0x6100 [ 1664.865106][ T8449] ? del_timer+0x7e/0x390 [ 1664.869476][ T8449] ? rcu_read_lock_sched_held+0x87/0x110 [ 1664.875149][ T8449] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1664.881253][ T8449] ? trace_lock_acquire+0x190/0x190 [ 1664.886438][ T8449] ? mark_lock+0x199/0x1eb0 [ 1664.890926][ T8449] ? __bfs+0x700/0x700 [ 1664.894975][ T8449] ? do_raw_spin_unlock+0x134/0x8a0 [ 1664.900172][ T8449] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1664.905807][ T8449] ? rcu_read_lock_sched_held+0x87/0x110 [ 1664.911521][ T8449] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1664.917505][ T8449] ? del_timer+0x14f/0x390 [ 1664.921906][ T8449] lock_acquire+0x182/0x4a0 [ 1664.926493][ T8449] ? lock_sock_nested+0x48/0x110 [ 1664.931513][ T8449] ? lockdep_softirqs_on+0x550/0x550 [ 1664.936780][ T8449] ? read_lock_is_recursive+0x10/0x10 [ 1664.942136][ T8449] ? __local_bh_disable_ip+0x130/0x1c0 [ 1664.947726][ T8449] ? __bpf_trace_softirq+0x10/0x10 [ 1664.952822][ T8449] ? cancel_delayed_work+0x252/0x360 [ 1664.958144][ T8449] ? lockdep_hardirqs_on+0x8d/0x130 [ 1664.963428][ T8449] ? cancel_delayed_work+0x2be/0x360 [ 1664.968697][ T8449] ? lock_sock_nested+0x48/0x110 [ 1664.973639][ T8449] _raw_spin_lock_bh+0x31/0x40 [ 1664.978565][ T8449] ? lock_sock_nested+0x48/0x110 [ 1664.983497][ T8449] lock_sock_nested+0x48/0x110 [ 1664.988261][ T8449] l2cap_sock_teardown_cb+0x76/0x360 [ 1664.994028][ T8449] l2cap_chan_del+0xaf/0x610 [ 1664.998603][ T8449] l2cap_conn_del+0x406/0x650 [ 1665.003262][ T8449] ? l2cap_connect_cfm+0x5c0/0x5c0 [ 1665.008441][ T8449] hci_conn_hash_flush+0x112/0x240 [ 1665.013769][ T8449] hci_dev_do_close+0x905/0x1010 [ 1665.018692][ T8449] hci_unregister_dev+0x2a2/0x510 [ 1665.023698][ T8449] vhci_release+0x73/0xc0 [ 1665.028140][ T8449] ? vhci_open+0x290/0x290 [ 1665.032540][ T8449] __fput+0x352/0x7b0 [ 1665.036549][ T8449] task_work_run+0x146/0x1c0 [ 1665.041332][ T8449] do_exit+0x72b/0x2510 [ 1665.045483][ T8449] ? __context_tracking_enter+0xa5/0xf0 [ 1665.051109][ T8449] ? mm_update_next_owner+0x6d0/0x6d0 [ 1665.056610][ T8449] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1665.062750][ T8449] ? print_irqtrace_events+0x220/0x220 [ 1665.068195][ T8449] ? vtime_user_exit+0x2b2/0x3e0 [ 1665.074393][ T8449] do_group_exit+0x168/0x2d0 [ 1665.078970][ T8449] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 1665.085021][ T8449] __do_sys_exit_group+0x13/0x20 [ 1665.089942][ T8449] __se_sys_exit_group+0x10/0x10 [ 1665.094877][ T8449] __x64_sys_exit_group+0x37/0x40 [ 1665.099901][ T8449] do_syscall_64+0x3d/0xb0 [ 1665.104371][ T8449] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1665.110358][ T8449] RIP: 0033:0x4665e9 [ 1665.114327][ T8449] Code: Unable to access opcode bytes at RIP 0x4665bf. [ 1665.121260][ T8449] RSP: 002b:00007fff944df4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1665.129656][ T8449] RAX: ffffffffffffffda RBX: 000000000000214d RCX: 00000000004665e9 [ 1665.137614][ T8449] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1665.145662][ T8449] RBP: 0000000000000000 R08: 0000000000000014 R09: 000000000000214d [ 1665.153705][ T8449] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bfe0f [ 1665.161750][ T8449] R13: 0000000000000000 R14: 0000000000000004 R15: 00007fff944df6b0 [ 1665.169718][ T8449] [ 1665.172027][ T8449] Allocated by task 19525: [ 1665.176420][ T8449] ____kasan_kmalloc+0xcd/0x100 [ 1665.181282][ T8449] __kmalloc+0xb4/0x390 [ 1665.185414][ T8449] sk_prot_alloc+0xf4/0x230 [ 1665.189901][ T8449] sk_alloc+0x35/0x300 [ 1665.194035][ T8449] l2cap_sock_alloc+0x34/0x1d0 [ 1665.198784][ T8449] l2cap_sock_create+0x113/0x1d0 [ 1665.203770][ T8449] bt_sock_create+0x15b/0x220 [ 1665.208507][ T8449] __sock_create+0x580/0x8d0 [ 1665.213123][ T8449] __sys_socket+0x115/0x350 [ 1665.217626][ T8449] __x64_sys_socket+0x76/0x80 [ 1665.222282][ T8449] do_syscall_64+0x3d/0xb0 [ 1665.226685][ T8449] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1665.232559][ T8449] [ 1665.234866][ T8449] Freed by task 19523: [ 1665.238913][ T8449] kasan_set_track+0x3d/0x70 [ 1665.243672][ T8449] kasan_set_free_info+0x1f/0x40 [ 1665.249199][ T8449] ____kasan_slab_free+0x10d/0x150 [ 1665.254375][ T8449] slab_free_freelist_hook+0x1e8/0x2a0 [ 1665.259916][ T8449] kfree+0xcf/0x2e0 [ 1665.263708][ T8449] __sk_destruct+0x57f/0x830 [ 1665.268281][ T8449] l2cap_sock_release+0x149/0x1c0 [ 1665.273377][ T8449] sock_close+0xd8/0x260 [ 1665.277617][ T8449] __fput+0x352/0x7b0 [ 1665.281624][ T8449] task_work_run+0x146/0x1c0 [ 1665.286470][ T8449] exit_to_user_mode_prepare+0x201/0x220 [ 1665.292171][ T8449] syscall_exit_to_user_mode+0x26/0x60 [ 1665.297701][ T8449] do_syscall_64+0x4c/0xb0 [ 1665.302124][ T8449] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1665.308291][ T8449] [ 1665.310615][ T8449] The buggy address belongs to the object at ffff8880234f0000 [ 1665.310615][ T8449] which belongs to the cache kmalloc-2k of size 2048 [ 1665.324938][ T8449] The buggy address is located 160 bytes inside of [ 1665.324938][ T8449] 2048-byte region [ffff8880234f0000, ffff8880234f0800) [ 1665.338480][ T8449] The buggy address belongs to the page: [ 1665.344347][ T8449] page:ffffea00008d3c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880234f2000 pfn:0x234f0 [ 1665.356320][ T8449] head:ffffea00008d3c00 order:3 compound_mapcount:0 compound_pincount:0 [ 1665.364640][ T8449] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 1665.372963][ T8449] raw: 00fff00000010200 ffffea000081d408 ffff888011040948 ffff888011042000 [ 1665.381763][ T8449] raw: ffff8880234f2000 0000000000080007 00000001ffffffff 0000000000000000 [ 1665.390417][ T8449] page dumped because: kasan: bad access detected [ 1665.396999][ T8449] page_owner tracks the page as allocated [ 1665.402786][ T8449] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 8669, ts 1583688254244, free_ts 1583673427056 [ 1665.422502][ T8449] get_page_from_freelist+0x779/0xa30 [ 1665.428064][ T8449] __alloc_pages+0x26c/0x5f0 [ 1665.432635][ T8449] allocate_slab+0xf1/0x540 [ 1665.437213][ T8449] ___slab_alloc+0x1cf/0x350 [ 1665.441790][ T8449] __kmalloc_node_track_caller+0x2f4/0x410 [ 1665.447749][ T8449] __alloc_skb+0x127/0x580 [ 1665.452151][ T8449] alloc_skb_with_frags+0xab/0x660 [ 1665.457243][ T8449] sock_alloc_send_pskb+0x930/0xa70 [ 1665.462517][ T8449] mld_newpack+0x19b/0x9d0 [ 1665.466976][ T8449] add_grec+0x1178/0x15c0 [ 1665.471295][ T8449] mld_send_initial_cr+0x1f6/0x370 [ 1665.476386][ T8449] ipv6_mc_dad_complete+0x81/0x390 [ 1665.481487][ T8449] addrconf_dad_completed+0x695/0xbe0 [ 1665.486993][ T8449] addrconf_dad_work+0xfc8/0x1cf0 [ 1665.492148][ T8449] process_one_work+0x833/0x10c0 [ 1665.497176][ T8449] worker_thread+0xac1/0x1320 [ 1665.501859][ T8449] page last free stack trace: [ 1665.506711][ T8449] free_pcp_prepare+0xc29/0xd20 [ 1665.511750][ T8449] free_unref_page+0x7e/0x550 [ 1665.516508][ T8449] unfreeze_partials+0x18c/0x1e0 [ 1665.521640][ T8449] put_cpu_partial+0xd2/0x210 [ 1665.526507][ T8449] __slab_free+0x3a8/0x6b0 [ 1665.530918][ T8449] ___cache_free+0xfc/0x120 [ 1665.535417][ T8449] kasan_quarantine_reduce+0x151/0x1c0 [ 1665.540967][ T8449] __kasan_slab_alloc+0x2f/0xd0 [ 1665.545868][ T8449] kmem_cache_alloc+0x1d1/0x340 [ 1665.550697][ T8449] getname_flags+0xba/0x640 [ 1665.555268][ T8449] user_path_at_empty+0x28/0x50 [ 1665.560205][ T8449] do_readlinkat+0x10c/0x3d0 [ 1665.564972][ T8449] __x64_sys_readlinkat+0x96/0xb0 [ 1665.570296][ T8449] do_syscall_64+0x3d/0xb0 [ 1665.574702][ T8449] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1665.580635][ T8449] [ 1665.582956][ T8449] Memory state around the buggy address: [ 1665.588568][ T8449] ffff8880234eff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1665.596873][ T8449] ffff8880234f0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1665.605043][ T8449] >ffff8880234f0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1665.613254][ T8449] ^ [ 1665.618370][ T8449] ffff8880234f0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1665.626586][ T8449] ffff8880234f0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1665.634620][ T8449] ================================================================== [ 1665.642915][ T8449] Disabling lock debugging due to kernel taint [ 1665.649142][ T8449] Kernel panic - not syncing: panic_on_warn set ... [ 1665.655709][ T8449] CPU: 1 PID: 8449 Comm: syz-executor.0 Tainted: G B 5.14.0-rc7-syzkaller #0 [ 1665.665855][ T8449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1665.676067][ T8449] Call Trace: [ 1665.679444][ T8449] dump_stack_lvl+0x1ae/0x29f [ 1665.684112][ T8449] ? show_regs_print_info+0x12/0x12 [ 1665.689292][ T8449] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1665.694998][ T8449] panic+0x2e1/0x850 [ 1665.699065][ T8449] ? nmi_panic+0x90/0x90 [ 1665.703404][ T8449] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1665.709396][ T8449] ? rcu_read_lock_sched_held+0x87/0x110 [ 1665.715210][ T8449] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1665.721206][ T8449] kasan_report+0x206/0x210 [ 1665.725721][ T8449] ? __lock_acquire+0xfe/0x6100 [ 1665.730561][ T8449] __lock_acquire+0xfe/0x6100 [ 1665.735423][ T8449] ? del_timer+0x7e/0x390 [ 1665.739840][ T8449] ? rcu_read_lock_sched_held+0x87/0x110 [ 1665.745465][ T8449] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1665.751438][ T8449] ? trace_lock_acquire+0x190/0x190 [ 1665.756620][ T8449] ? mark_lock+0x199/0x1eb0 [ 1665.761368][ T8449] ? __bfs+0x700/0x700 [ 1665.765419][ T8449] ? do_raw_spin_unlock+0x134/0x8a0 [ 1665.770612][ T8449] ? _raw_spin_lock_irqsave+0xbf/0x100 [ 1665.776246][ T8449] ? rcu_read_lock_sched_held+0x87/0x110 [ 1665.782080][ T8449] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1665.788230][ T8449] ? del_timer+0x14f/0x390 [ 1665.792907][ T8449] lock_acquire+0x182/0x4a0 [ 1665.797500][ T8449] ? lock_sock_nested+0x48/0x110 [ 1665.802444][ T8449] ? lockdep_softirqs_on+0x550/0x550 [ 1665.807733][ T8449] ? read_lock_is_recursive+0x10/0x10 [ 1665.813103][ T8449] ? __local_bh_disable_ip+0x130/0x1c0 [ 1665.818546][ T8449] ? __bpf_trace_softirq+0x10/0x10 [ 1665.823639][ T8449] ? cancel_delayed_work+0x252/0x360 [ 1665.828920][ T8449] ? lockdep_hardirqs_on+0x8d/0x130 [ 1665.834377][ T8449] ? cancel_delayed_work+0x2be/0x360 [ 1665.839732][ T8449] ? lock_sock_nested+0x48/0x110 [ 1665.844742][ T8449] _raw_spin_lock_bh+0x31/0x40 [ 1665.849501][ T8449] ? lock_sock_nested+0x48/0x110 [ 1665.854595][ T8449] lock_sock_nested+0x48/0x110 [ 1665.859345][ T8449] l2cap_sock_teardown_cb+0x76/0x360 [ 1665.864614][ T8449] l2cap_chan_del+0xaf/0x610 [ 1665.869196][ T8449] l2cap_conn_del+0x406/0x650 [ 1665.873857][ T8449] ? l2cap_connect_cfm+0x5c0/0x5c0 [ 1665.878948][ T8449] hci_conn_hash_flush+0x112/0x240 [ 1665.884131][ T8449] hci_dev_do_close+0x905/0x1010 [ 1665.889049][ T8449] hci_unregister_dev+0x2a2/0x510 [ 1665.894057][ T8449] vhci_release+0x73/0xc0 [ 1665.898369][ T8449] ? vhci_open+0x290/0x290 [ 1665.902777][ T8449] __fput+0x352/0x7b0 [ 1665.906759][ T8449] task_work_run+0x146/0x1c0 [ 1665.911341][ T8449] do_exit+0x72b/0x2510 [ 1665.915489][ T8449] ? __context_tracking_enter+0xa5/0xf0 [ 1665.921019][ T8449] ? mm_update_next_owner+0x6d0/0x6d0 [ 1665.926370][ T8449] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1665.932420][ T8449] ? print_irqtrace_events+0x220/0x220 [ 1665.937879][ T8449] ? vtime_user_exit+0x2b2/0x3e0 [ 1665.942810][ T8449] do_group_exit+0x168/0x2d0 [ 1665.947572][ T8449] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 1665.953619][ T8449] __do_sys_exit_group+0x13/0x20 [ 1665.958551][ T8449] __se_sys_exit_group+0x10/0x10 [ 1665.963564][ T8449] __x64_sys_exit_group+0x37/0x40 [ 1665.968910][ T8449] do_syscall_64+0x3d/0xb0 [ 1665.973345][ T8449] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1665.979310][ T8449] RIP: 0033:0x4665e9 [ 1665.983194][ T8449] Code: Unable to access opcode bytes at RIP 0x4665bf. [ 1665.990027][ T8449] RSP: 002b:00007fff944df4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1665.998428][ T8449] RAX: ffffffffffffffda RBX: 000000000000214d RCX: 00000000004665e9 [ 1666.006384][ T8449] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1666.014423][ T8449] RBP: 0000000000000000 R08: 0000000000000014 R09: 000000000000214d [ 1666.022380][ T8449] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bfe0f [ 1666.030358][ T8449] R13: 0000000000000000 R14: 0000000000000004 R15: 00007fff944df6b0 [ 1666.039963][ T8449] Kernel Offset: disabled [ 1666.044476][ T8449] Rebooting in 86400 seconds..