[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.116' (ECDSA) to the list of known hosts. 2021/05/06 11:42:58 parsed 1 programs 2021/05/06 11:42:58 executed programs: 0 syzkaller login: [ 1581.603652][ T8398] IPVS: ftp: loaded support on port[0] = 21 [ 1581.743573][ T8398] chnl_net:caif_netlink_parms(): no params data found [ 1581.792024][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.800789][ T8398] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.810225][ T8398] device bridge_slave_0 entered promiscuous mode [ 1581.820187][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.828115][ T8398] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.835736][ T8398] device bridge_slave_1 entered promiscuous mode [ 1581.854590][ T8398] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1581.865228][ T8398] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1581.887599][ T8398] team0: Port device team_slave_0 added [ 1581.894691][ T8398] team0: Port device team_slave_1 added [ 1581.911886][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1581.918993][ T8398] 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. [ 1581.945025][ T8398] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1581.957682][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1581.964626][ T8398] 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. [ 1581.990761][ T8398] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1582.015950][ T8398] device hsr_slave_0 entered promiscuous mode [ 1582.022776][ T8398] device hsr_slave_1 entered promiscuous mode [ 1582.112549][ T8398] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1582.122670][ T8398] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1582.134031][ T8398] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1582.143122][ T8398] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1582.165785][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 1582.172981][ T8398] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1582.181054][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 1582.188213][ T8398] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1582.231505][ T8398] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1582.244414][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1582.255541][ T8619] bridge0: port 1(bridge_slave_0) entered disabled state [ 1582.265321][ T8619] bridge0: port 2(bridge_slave_1) entered disabled state [ 1582.274018][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1582.288488][ T8398] 8021q: adding VLAN 0 to HW filter on device team0 [ 1582.300342][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1582.309476][ T3053] bridge0: port 1(bridge_slave_0) entered blocking state [ 1582.316778][ T3053] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1582.327245][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1582.335672][ T8619] bridge0: port 2(bridge_slave_1) entered blocking state [ 1582.342809][ T8619] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1582.368216][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1582.378504][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1582.387357][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1582.395547][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1582.404411][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1582.414983][ T8398] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1582.431907][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1582.439826][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1582.452491][ T8398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1582.476819][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1582.490394][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1582.499290][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1582.507602][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1582.518701][ T8398] device veth0_vlan entered promiscuous mode [ 1582.531308][ T8398] device veth1_vlan entered promiscuous mode [ 1582.552040][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1582.561062][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1582.570381][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1582.581795][ T8398] device veth0_macvtap entered promiscuous mode [ 1582.591474][ T8398] device veth1_macvtap entered promiscuous mode [ 1582.608265][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1582.615691][ T8539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1582.626877][ T8539] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1582.638854][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1582.646266][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1582.659551][ T8398] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.668648][ T8398] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.679462][ T8398] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.688389][ T8398] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.763122][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.795519][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.795528][ T8636] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.819215][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1582.830273][ T8636] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.840091][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1583.617442][ T3053] Bluetooth: hci0: command 0x0409 tx timeout 2021/05/06 11:43:03 executed programs: 3 [ 1585.686822][ T3053] Bluetooth: hci0: command 0x041b tx timeout [ 1587.766060][ T8539] Bluetooth: hci0: command 0x040f tx timeout [ 1589.845934][ T3053] Bluetooth: hci0: command 0x0419 tx timeout 2021/05/06 11:43:08 executed programs: 9 2021/05/06 11:43:14 executed programs: 15 2021/05/06 11:43:19 executed programs: 21 2021/05/06 11:43:25 executed programs: 27 [ 1607.125934][ T3227] ieee802154 phy0 wpan0: encryption failed: -22 [ 1607.132997][ T3227] ieee802154 phy1 wpan1: encryption failed: -22 2021/05/06 11:43:30 executed programs: 33 2021/05/06 11:43:35 executed programs: 39 2021/05/06 11:43:41 executed programs: 45 2021/05/06 11:43:46 executed programs: 51 2021/05/06 11:43:52 executed programs: 57 2021/05/06 11:43:57 executed programs: 63 2021/05/06 11:44:02 executed programs: 69 2021/05/06 11:44:08 executed programs: 75 2021/05/06 11:44:13 executed programs: 81 2021/05/06 11:44:19 executed programs: 87 2021/05/06 11:44:24 executed programs: 93 [ 1668.562193][ T3227] ieee802154 phy0 wpan0: encryption failed: -22 [ 1668.568495][ T3227] ieee802154 phy1 wpan1: encryption failed: -22 2021/05/06 11:44:29 executed programs: 99 2021/05/06 11:44:35 executed programs: 105 2021/05/06 11:44:40 executed programs: 111 2021/05/06 11:44:46 executed programs: 117 2021/05/06 11:44:51 executed programs: 123 2021/05/06 11:44:56 executed programs: 129 2021/05/06 11:45:02 executed programs: 135 [ 1706.478186][ T8620] Bluetooth: hci0: command 0x0406 tx timeout 2021/05/06 11:45:07 executed programs: 141 2021/05/06 11:45:13 executed programs: 147 2021/05/06 11:45:18 executed programs: 153 [ 1729.997770][ T3227] ieee802154 phy0 wpan0: encryption failed: -22 [ 1730.004132][ T3227] ieee802154 phy1 wpan1: encryption failed: -22 [ 1791.433311][ T3227] ieee802154 phy0 wpan0: encryption failed: -22 [ 1791.439754][ T3227] ieee802154 phy1 wpan1: encryption failed: -22 [ 1852.869622][ T3227] ieee802154 phy0 wpan0: encryption failed: -22 [ 1852.875944][ T3227] ieee802154 phy1 wpan1: encryption failed: -22 [ 1887.436633][ T1615] INFO: task syz-executor.0:9743 blocked for more than 143 seconds. [ 1887.444887][ T1615] Not tainted 5.12.0-syzkaller #0 [ 1887.450512][ T1615] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1887.459346][ T1615] task:syz-executor.0 state:D stack:25648 pid: 9743 ppid: 8398 flags:0x00004004 [ 1887.468718][ T1615] Call Trace: [ 1887.471999][ T1615] __schedule+0xb98/0x1120 [ 1887.476589][ T1615] ? release_firmware_map_entry+0x182/0x182 [ 1887.482644][ T1615] schedule+0x14b/0x200 [ 1887.486871][ T1615] schedule_timeout+0x98/0x2c0 [ 1887.491684][ T1615] ? console_conditional_schedule+0x40/0x40 [ 1887.497792][ T1615] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1887.503833][ T1615] ? print_irqtrace_events+0x220/0x220 [ 1887.509656][ T1615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1887.514869][ T1615] ? lockdep_hardirqs_on+0x8d/0x130 [ 1887.520270][ T1615] do_wait_for_common+0x2dd/0x450 [ 1887.525317][ T1615] ? console_conditional_schedule+0x40/0x40 [ 1887.531303][ T1615] ? wait_for_completion_killable_timeout+0x60/0x60 [ 1887.538017][ T1615] ? _raw_spin_lock_irq+0xba/0xf0 [ 1887.543050][ T1615] ? _raw_spin_lock_irqsave+0x100/0x100 [ 1887.549044][ T1615] ? start_flush_work+0x6ee/0x740 [ 1887.554208][ T1615] wait_for_completion+0x48/0x60 [ 1887.560214][ T1615] __cancel_work_timer+0x4dc/0x690 [ 1887.565399][ T1615] ? cancel_work_sync+0x20/0x20 [ 1887.570698][ T1615] ? start_flush_work+0x740/0x740 [ 1887.575749][ T1615] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 1887.581767][ T1615] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1887.587813][ T1615] ? _raw_spin_unlock+0x40/0x40 [ 1887.592665][ T1615] ? slab_free_freelist_hook+0x171/0x270 [ 1887.598474][ T1615] ? remove_wait_queue+0x2f/0x130 [ 1887.603537][ T1615] p9_fd_close+0x2a2/0x3c0 [ 1887.608492][ T1615] p9_client_destroy+0xbe/0x6e0 [ 1887.613486][ T1615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1887.619664][ T1615] ? p9_client_create+0xf80/0xf80 [ 1887.624703][ T1615] ? v9fs_session_init+0x13d2/0x18c0 [ 1887.630101][ T1615] ? kfree+0x2d/0x2d0 [ 1887.634086][ T1615] v9fs_session_init+0x13f2/0x18c0 [ 1887.639337][ T1615] ? v9fs_show_options+0x600/0x600 [ 1887.644449][ T1615] ? rcu_read_lock_sched_held+0x87/0x110 [ 1887.650140][ T1615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1887.656187][ T1615] ? rcu_read_lock_sched_held+0x87/0x110 [ 1887.661928][ T1615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1887.668028][ T1615] ? lockdep_init_map_type+0x9f/0x9a0 [ 1887.673403][ T1615] ? v9fs_mount+0x5c/0x870 [ 1887.677923][ T1615] ? kmem_cache_alloc_trace+0x239/0x350 [ 1887.683469][ T1615] ? v9fs_mount+0x5c/0x870 [ 1887.688826][ T1615] ? kmem_cache_alloc_trace+0x239/0x350 [ 1887.694410][ T1615] v9fs_mount+0x72/0x870 [ 1887.699075][ T1615] ? cap_capable+0x27e/0x2d0 [ 1887.703781][ T1615] legacy_get_tree+0xea/0x180 [ 1887.708624][ T1615] ? asan.module_dtor+0x20/0x20 [ 1887.713706][ T1615] vfs_get_tree+0x86/0x270 [ 1887.718274][ T1615] path_mount+0x196f/0x2be0 [ 1887.722904][ T1615] ? __check_object_size+0x2f3/0x3f0 [ 1887.728310][ T1615] ? mark_mounts_for_expiry+0x520/0x520 [ 1887.733863][ T1615] ? getname_flags+0x1fe/0x640 [ 1887.738696][ T1615] __se_sys_mount+0x2f9/0x3b0 [ 1887.743375][ T1615] ? vtime_user_exit+0x2b2/0x3e0 [ 1887.748508][ T1615] ? __x64_sys_mount+0xc0/0xc0 [ 1887.753274][ T1615] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 1887.759456][ T1615] ? lockdep_hardirqs_on+0x8d/0x130 [ 1887.764671][ T1615] ? __x64_sys_mount+0x1c/0xc0 [ 1887.769557][ T1615] do_syscall_64+0x3f/0xb0 [ 1887.773984][ T1615] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1887.780239][ T1615] RIP: 0033:0x4665f9 [ 1887.784136][ T1615] RSP: 002b:00007f3cc9307188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1887.792664][ T1615] RAX: ffffffffffffffda RBX: 000000000056c158 RCX: 00000000004665f9 [ 1887.800709][ T1615] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000000000000 [ 1887.808850][ T1615] RBP: 00000000004bfce1 R08: 0000000020000580 R09: 0000000000000000 [ 1887.817799][ T1615] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c158 [ 1887.825782][ T1615] R13: 00007ffd2feae03f R14: 00007f3cc9307300 R15: 0000000000022000 [ 1887.833996][ T1615] [ 1887.833996][ T1615] Showing all locks held in the system: [ 1887.841793][ T1615] 1 lock held by khungtaskd/1615: [ 1887.846958][ T1615] #0: ffffffff8cd14580 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 1887.856309][ T1615] 2 locks held by kworker/1:2/3053: [ 1887.861577][ T1615] #0: ffff888011464d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7aa/0x10c0 [ 1887.872081][ T1615] #1: ffffc9000205fd20 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x7e8/0x10c0 [ 1887.882894][ T1615] 1 lock held by in:imklog/8080: [ 1887.887991][ T1615] #0: ffff88801a1e3770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 [ 1887.897708][ T1615] 4 locks held by kworker/0:2/8370: [ 1887.903035][ T1615] #0: ffff8880b9a34cd8 (&rq->lock){-.-.}-{2:2}, at: newidle_balance+0x86f/0xc60 [ 1887.912443][ T1615] #1: ffff8880b9a1f808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4b3/0x7a0 [ 1887.924136][ T1615] #2: ffffffff8cbf09f8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0x1c/0x90 [ 1887.933827][ T1615] #3: ffffffff90f4ffa8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x97/0x6a0 [ 1887.944414][ T1615] [ 1887.948020][ T1615] ============================================= [ 1887.948020][ T1615] [ 1887.956660][ T1615] NMI backtrace for cpu 1 [ 1887.960998][ T1615] CPU: 1 PID: 1615 Comm: khungtaskd Not tainted 5.12.0-syzkaller #0 [ 1887.969069][ T1615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1887.979109][ T1615] Call Trace: [ 1887.982388][ T1615] dump_stack+0x202/0x31e [ 1887.986783][ T1615] ? show_regs_print_info+0x12/0x12 [ 1887.991984][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1887.997752][ T1615] ? printk+0xc0/0x108 [ 1888.001804][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1888.007512][ T1615] ? wake_up_klogd+0xb2/0xf0 [ 1888.012111][ T1615] ? trace_vector_free_moved+0x160/0x1a0 [ 1888.017808][ T1615] nmi_cpu_backtrace+0x16c/0x190 [ 1888.022765][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1888.028814][ T1615] nmi_trigger_cpumask_backtrace+0x191/0x2f0 [ 1888.034778][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1888.040830][ T1615] watchdog+0xcfb/0xd40 [ 1888.045017][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1888.050034][ T1615] kthread+0x39a/0x3c0 [ 1888.054270][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1888.059274][ T1615] ? kthread_blkcg+0xd0/0xd0 [ 1888.063848][ T1615] ret_from_fork+0x1f/0x30 [ 1888.068719][ T1615] Sending NMI from CPU 1 to CPUs 0: [ 1888.074647][ C0] NMI backtrace for cpu 0 [ 1888.074653][ C0] CPU: 0 PID: 9744 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 1888.074658][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1888.074663][ C0] Workqueue: phy4 ieee80211_iface_work [ 1888.074671][ C0] RIP: 0010:kasan_check_range+0x8d/0x2f0 [ 1888.074676][ C0] Code: ce 49 83 fe 10 7f 30 4d 85 f6 0f 84 ae 01 00 00 4c 89 cb 4c 29 d3 0f 1f 80 00 00 00 00 45 0f b6 19 45 84 db 0f 85 f3 01 00 00 <49> ff c1 48 ff c3 75 eb e9 87 01 00 00 44 89 cb 83 e3 07 0f 84 04 [ 1888.074684][ C0] RSP: 0018:ffffc90009366f50 EFLAGS: 00000046 [ 1888.074690][ C0] RAX: 0000000000000001 RBX: ffffffffffffffff RCX: ffffffff81611037 [ 1888.074694][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90006d80 [ 1888.074698][ C0] RBP: ffffc90009367310 R08: dffffc0000000000 R09: fffffbfff2000db0 [ 1888.074703][ C0] R10: fffffbfff2000db1 R11: 0000000000000000 R12: 1ffffffff2000db0 [ 1888.074707][ C0] R13: dffffc0000000001 R14: 0000000000000001 R15: ffff88802173c338 [ 1888.074712][ C0] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 1888.074716][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1888.074720][ C0] CR2: 00007f9a0d0fb000 CR3: 000000000ca8e000 CR4: 00000000001506f0 [ 1888.074725][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1888.074729][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1888.074733][ C0] Call Trace: [ 1888.074736][ C0] __lock_acquire+0x1107/0x6040 [ 1888.074738][ C0] ? mark_lock+0x199/0x1eb0 [ 1888.074741][ C0] ? __lock_acquire+0x13b0/0x6040 [ 1888.074745][ C0] ? trace_lock_acquire+0x180/0x180 [ 1888.074748][ C0] ? trace_lock_acquire+0x180/0x180 [ 1888.074751][ C0] ? trace_lock_acquire+0x180/0x180 [ 1888.074755][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 1888.074758][ C0] ? lockdep_hardirqs_on+0x8d/0x130 [ 1888.074761][ C0] ? rcu_read_lock_sched_held+0x87/0x110 [ 1888.074765][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1888.074768][ C0] lock_acquire+0x17f/0x720 [ 1888.074771][ C0] ? rcu_lock_acquire+0x5/0x30 [ 1888.074774][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1888.074777][ C0] ? read_lock_is_recursive+0x10/0x10 [ 1888.074781][ C0] ? rcu_lock_release+0x5/0x20 [ 1888.074784][ C0] rcu_lock_acquire+0x2a/0x30 [ 1888.074786][ C0] ? rcu_lock_acquire+0x5/0x30 [ 1888.074790][ C0] ieee80211_vif_get_shift+0x1d/0x210 [ 1888.074793][ C0] ieee80211_sta_get_rates+0x114/0x6c0 [ 1888.074796][ C0] ? ieee80211_queue_delayed_work+0x160/0x160 [ 1888.074799][ C0] ieee80211_ibss_rx_queued_mgmt+0xe9d/0x2ac0 [ 1888.074803][ C0] ? ieee80211_ibss_rx_no_sta+0x750/0x750 [ 1888.074806][ C0] ? trace_lock_acquire+0x180/0x180 [ 1888.074810][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1888.074813][ C0] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1888.074817][ C0] ? __lock_acquire+0x6040/0x6040 [ 1888.074820][ C0] ? print_irqtrace_events+0x220/0x220 [ 1888.074823][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 1888.074826][ C0] ? lockdep_hardirqs_on+0x8d/0x130 [ 1888.074830][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1888.074833][ C0] ? _raw_spin_unlock+0x40/0x40 [ 1888.074836][ C0] ? kcov_remote_start+0x7c/0x4a0 [ 1888.074839][ C0] ? kcov_remote_start+0x10f/0x4a0 [ 1888.074842][ C0] ieee80211_iface_work+0x71a/0xb10 [ 1888.074845][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1888.074849][ C0] process_one_work+0x833/0x10c0 [ 1888.074852][ C0] ? worker_detach_from_pool+0x260/0x260 [ 1888.074855][ C0] ? _raw_spin_lock_irqsave+0x100/0x100 [ 1888.074858][ C0] ? kthread_data+0x4d/0xc0 [ 1888.074861][ C0] ? wq_worker_running+0x8b/0x140 [ 1888.074864][ C0] worker_thread+0xac1/0x1300 [ 1888.074867][ C0] ? __kthread_parkme+0x148/0x190 [ 1888.074870][ C0] ? rcu_lock_release+0x20/0x20 [ 1888.074873][ C0] kthread+0x39a/0x3c0 [ 1888.074876][ C0] ? rcu_lock_release+0x20/0x20 [ 1888.074879][ C0] ? kthread_blkcg+0xd0/0xd0 [ 1888.074882][ C0] ret_from_fork+0x1f/0x30 [ 1888.086570][ T1615] Kernel panic - not syncing: hung_task: blocked tasks [ 1888.466867][ T1615] CPU: 1 PID: 1615 Comm: khungtaskd Not tainted 5.12.0-syzkaller #0 [ 1888.474827][ T1615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1888.484861][ T1615] Call Trace: [ 1888.488129][ T1615] dump_stack+0x202/0x31e [ 1888.492455][ T1615] ? show_regs_print_info+0x12/0x12 [ 1888.497644][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1888.503344][ T1615] ? lockdep_hardirqs_off+0x69/0xf0 [ 1888.508545][ T1615] panic+0x2e1/0x850 [ 1888.512515][ T1615] ? _raw_spin_unlock+0x40/0x40 [ 1888.517351][ T1615] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1888.523498][ T1615] ? nmi_panic+0x90/0x90 [ 1888.527722][ T1615] ? preempt_schedule_thunk+0x16/0x18 [ 1888.533075][ T1615] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1888.539212][ T1615] ? nmi_trigger_cpumask_backtrace+0x29b/0x2f0 [ 1888.545366][ T1615] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2f0 [ 1888.551504][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1888.557556][ T1615] watchdog+0xd3b/0xd40 [ 1888.561700][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1888.566715][ T1615] kthread+0x39a/0x3c0 [ 1888.570774][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1888.575789][ T1615] ? kthread_blkcg+0xd0/0xd0 [ 1888.580362][ T1615] ret_from_fork+0x1f/0x30 [ 1888.585640][ T1615] Kernel Offset: disabled [ 1888.589957][ T1615] Rebooting in 86400 seconds..