[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 341.724034][ T79] kworker/dying (79) used greatest stack depth: 17928 bytes left Warning: Permanently added '10.128.1.14' (ECDSA) to the list of known hosts. 2021/06/03 02:45:58 parsed 1 programs 2021/06/03 02:45:58 executed programs: 0 [ 1580.683569][ T8421] chnl_net:caif_netlink_parms(): no params data found [ 1580.735261][ T8421] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.743497][ T8421] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.752481][ T8421] device bridge_slave_0 entered promiscuous mode [ 1580.762412][ T8421] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.770170][ T8421] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.779015][ T8421] device bridge_slave_1 entered promiscuous mode [ 1580.800275][ T8421] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1580.811025][ T8421] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1580.833641][ T8421] team0: Port device team_slave_0 added [ 1580.841614][ T8421] team0: Port device team_slave_1 added [ 1580.860730][ T8421] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1580.867732][ T8421] 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. [ 1580.893872][ T8421] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1580.907867][ T8421] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1580.914808][ T8421] 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. [ 1580.940778][ T8421] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1580.966830][ T8421] device hsr_slave_0 entered promiscuous mode [ 1580.973869][ T8421] device hsr_slave_1 entered promiscuous mode [ 1581.074820][ T8421] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1581.087018][ T8421] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1581.097177][ T8421] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1581.106262][ T8421] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1581.130645][ T8421] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.137830][ T8421] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.145601][ T8421] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.152719][ T8421] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.198340][ T8421] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1581.213281][ T8396] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1581.224713][ T8396] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.233713][ T8396] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.243045][ T8396] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1581.256915][ T8421] 8021q: adding VLAN 0 to HW filter on device team0 [ 1581.269308][ T8396] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1581.277769][ T8396] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.284807][ T8396] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.299013][ T8643] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1581.308332][ T8643] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.315468][ T8643] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.333745][ T8632] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1581.342535][ T8632] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1581.362667][ T8421] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1581.375247][ T8421] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1581.387540][ T8643] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1581.396241][ T8643] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1581.404915][ T8643] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1581.413898][ T8643] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1581.435840][ T8421] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1581.443268][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1581.452166][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1581.471208][ T8632] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1581.491287][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1581.499646][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1581.509294][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1581.520240][ T8421] device veth0_vlan entered promiscuous mode [ 1581.532082][ T8421] device veth1_vlan entered promiscuous mode [ 1581.551802][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1581.560252][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1581.569605][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1581.581203][ T8421] device veth0_macvtap entered promiscuous mode [ 1581.590330][ T8421] device veth1_macvtap entered promiscuous mode [ 1581.607467][ T8421] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1581.614992][ T8632] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1581.628627][ T8632] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1581.642049][ T8421] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1581.650113][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1581.662027][ T8421] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1581.671376][ T8421] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1581.680887][ T8421] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1581.692176][ T8421] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1581.789501][ T196] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.803458][ T196] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.827286][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1581.841480][ T8450] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.851005][ T8450] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.862609][ T8645] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1582.526335][ T8645] Bluetooth: hci0: command 0x0409 tx timeout 2021/06/03 02:46:03 executed programs: 3 [ 1584.596842][ T8632] Bluetooth: hci0: command 0x041b tx timeout [ 1586.676286][ T20] Bluetooth: hci0: command 0x040f tx timeout [ 1588.755475][ T8647] Bluetooth: hci0: command 0x0419 tx timeout 2021/06/03 02:46:09 executed programs: 9 2021/06/03 02:46:14 executed programs: 15 2021/06/03 02:46:20 executed programs: 21 2021/06/03 02:46:25 executed programs: 27 [ 1606.996372][ T3240] ieee802154 phy0 wpan0: encryption failed: -22 [ 1607.002937][ T3240] ieee802154 phy1 wpan1: encryption failed: -22 2021/06/03 02:46:31 executed programs: 33 2021/06/03 02:46:36 executed programs: 39 [ 1668.436409][ T3240] ieee802154 phy0 wpan0: encryption failed: -22 [ 1668.442899][ T3240] ieee802154 phy1 wpan1: encryption failed: -22 [ 1706.355727][ T20] Bluetooth: hci0: command 0x0406 tx timeout [ 1729.876657][ T3240] ieee802154 phy0 wpan0: encryption failed: -22 [ 1729.883188][ T3240] ieee802154 phy1 wpan1: encryption failed: -22 [ 1763.165888][ T1615] INFO: task syz-executor.0:8955 blocked for more than 143 seconds. [ 1763.174308][ T1615] Not tainted 5.13.0-rc4-syzkaller #0 [ 1763.182489][ T1615] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1763.191575][ T1615] task:syz-executor.0 state:D stack:24816 pid: 8955 ppid: 8421 flags:0x00004004 [ 1763.201263][ T1615] Call Trace: [ 1763.204597][ T1615] __schedule+0xb98/0x1120 [ 1763.209850][ T1615] ? release_firmware_map_entry+0x181/0x181 [ 1763.216189][ T1615] schedule+0x14b/0x200 [ 1763.220400][ T1615] schedule_timeout+0x98/0x2c0 [ 1763.225158][ T1615] ? console_conditional_schedule+0x40/0x40 [ 1763.233112][ T1615] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1763.239628][ T1615] ? print_irqtrace_events+0x220/0x220 [ 1763.245127][ T1615] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1763.251028][ T1615] ? lockdep_hardirqs_on+0x8d/0x130 [ 1763.256670][ T1615] do_wait_for_common+0x2dd/0x450 [ 1763.261742][ T1615] ? console_conditional_schedule+0x40/0x40 [ 1763.268090][ T1615] ? wait_for_completion_killable_timeout+0x60/0x60 [ 1763.274703][ T1615] ? _raw_spin_lock_irq+0xba/0xf0 [ 1763.280451][ T1615] ? _raw_spin_lock_irqsave+0x100/0x100 [ 1763.286468][ T1615] ? start_flush_work+0x6ee/0x740 [ 1763.291599][ T1615] wait_for_completion+0x48/0x60 [ 1763.297244][ T1615] __cancel_work_timer+0x4dc/0x690 [ 1763.302443][ T1615] ? cancel_work_sync+0x20/0x20 [ 1763.307756][ T1615] ? start_flush_work+0x740/0x740 [ 1763.312808][ T1615] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 1763.319208][ T1615] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1763.325210][ T1615] ? _raw_spin_unlock+0x40/0x40 [ 1763.330505][ T1615] ? p9_fd_create+0x377/0x470 [ 1763.335274][ T1615] ? init_wait_entry+0xd0/0xd0 [ 1763.340775][ T1615] ? remove_wait_queue+0x2f/0x130 [ 1763.346245][ T1615] p9_fd_close+0x2a2/0x3c0 [ 1763.350698][ T1615] p9_client_create+0xa28/0xf80 [ 1763.355541][ T1615] ? p9_parse_header+0x510/0x510 [ 1763.361854][ T1615] ? lockdep_softirqs_off+0x410/0x410 [ 1763.367666][ T1615] ? lockdep_softirqs_off+0x410/0x410 [ 1763.373079][ T1615] ? v9fs_session_init+0xfc/0x18c0 [ 1763.378650][ T1615] ? __raw_spin_lock_init+0x44/0x100 [ 1763.383985][ T1615] v9fs_session_init+0x1e6/0x18c0 [ 1763.389442][ T1615] ? v9fs_show_options+0x600/0x600 [ 1763.394567][ T1615] ? rcu_read_lock_sched_held+0x87/0x110 [ 1763.400730][ T1615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1763.407136][ T1615] ? kmem_cache_alloc_trace+0x2b4/0x340 [ 1763.412760][ T1615] ? kmem_cache_alloc_trace+0x96/0x340 [ 1763.418766][ T1615] ? v9fs_mount+0x5c/0x870 [ 1763.423218][ T1615] v9fs_mount+0x72/0x870 [ 1763.427849][ T1615] ? cap_capable+0x27e/0x2d0 [ 1763.432517][ T1615] legacy_get_tree+0xea/0x180 [ 1763.437612][ T1615] ? asan.module_dtor+0x20/0x20 [ 1763.442487][ T1615] vfs_get_tree+0x86/0x270 [ 1763.447864][ T1615] path_mount+0x196f/0x2be0 [ 1763.452460][ T1615] ? __check_object_size+0x2f3/0x3f0 [ 1763.458211][ T1615] ? mark_mounts_for_expiry+0x520/0x520 [ 1763.463780][ T1615] ? getname_flags+0x1fe/0x640 [ 1763.468970][ T1615] __se_sys_mount+0x2f9/0x3b0 [ 1763.473668][ T1615] ? vtime_user_exit+0x2b2/0x3e0 [ 1763.479127][ T1615] ? __x64_sys_mount+0xc0/0xc0 [ 1763.483925][ T1615] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 1763.490706][ T1615] ? lockdep_hardirqs_on+0x8d/0x130 [ 1763.496328][ T1615] ? __x64_sys_mount+0x1c/0xc0 [ 1763.501135][ T1615] do_syscall_64+0x3f/0xb0 [ 1763.505542][ T1615] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1763.512138][ T1615] RIP: 0033:0x4665d9 [ 1763.516171][ T1615] RSP: 002b:00007fa9d8ca6188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1763.524610][ T1615] RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665d9 [ 1763.533078][ T1615] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000000000000 [ 1763.541486][ T1615] RBP: 00000000004bfcb9 R08: 0000000020000580 R09: 0000000000000000 [ 1763.549927][ T1615] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 [ 1763.558384][ T1615] R13: 00007ffed8ca17ef R14: 00007fa9d8ca6300 R15: 0000000000022000 [ 1763.566568][ T1615] [ 1763.566568][ T1615] Showing all locks held in the system: [ 1763.574308][ T1615] 1 lock held by khungtaskd/1615: [ 1763.579571][ T1615] #0: ffffffff8cf15c80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 1763.589005][ T1615] 1 lock held by systemd-journal/4838: [ 1763.594463][ T1615] #0: ffff8880b9a35118 (&rq->lock){-.-.}-{2:2}, at: newidle_balance+0x86f/0xc60 [ 1763.603656][ T1615] 1 lock held by in:imklog/8102: [ 1763.608662][ T1615] 2 locks held by kworker/0:0/8643: [ 1763.613882][ T1615] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7aa/0x10c0 [ 1763.625264][ T1615] #1: ffffc90001fffd20 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x7e8/0x10c0 [ 1763.637506][ T1615] [ 1763.639829][ T1615] ============================================= [ 1763.639829][ T1615] [ 1763.649956][ T1615] NMI backtrace for cpu 0 [ 1763.654412][ T1615] CPU: 0 PID: 1615 Comm: khungtaskd Not tainted 5.13.0-rc4-syzkaller #0 [ 1763.662743][ T1615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1763.672794][ T1615] Call Trace: [ 1763.676075][ T1615] dump_stack+0x202/0x31e [ 1763.680452][ T1615] ? show_regs_print_info+0x12/0x12 [ 1763.685631][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1763.691358][ T1615] ? printk+0xc0/0x108 [ 1763.695422][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1763.701137][ T1615] ? wake_up_klogd+0xb2/0xf0 [ 1763.705721][ T1615] ? trace_vector_free_moved+0x190/0x1a0 [ 1763.711415][ T1615] nmi_cpu_backtrace+0x16c/0x190 [ 1763.716336][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1763.722385][ T1615] nmi_trigger_cpumask_backtrace+0x191/0x2f0 [ 1763.728360][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1763.734433][ T1615] watchdog+0xcfb/0xd40 [ 1763.738643][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1763.743748][ T1615] kthread+0x39a/0x3c0 [ 1763.747842][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1763.752853][ T1615] ? kthread_blkcg+0xd0/0xd0 [ 1763.757426][ T1615] ret_from_fork+0x1f/0x30 [ 1763.762331][ T1615] Sending NMI from CPU 0 to CPUs 1: [ 1763.768297][ C1] NMI backtrace for cpu 1 [ 1763.768305][ C1] CPU: 1 PID: 4838 Comm: systemd-journal Not tainted 5.13.0-rc4-syzkaller #0 [ 1763.768311][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1763.768316][ C1] RIP: 0010:is_module_text_address+0xe4/0x130 [ 1763.768323][ C1] Code: 00 00 4c 01 f8 31 c9 4c 39 f0 48 0f 46 d9 4d 39 f7 48 0f 47 d9 eb 02 31 db bf 01 00 00 00 e8 d3 d8 e2 ff 65 8b 05 04 ea 8d 7e <85> c0 74 10 48 85 db 0f 95 c0 5b 41 5c 41 5d 41 5e 41 5f c3 e8 8a [ 1763.768331][ C1] RSP: 0018:ffffc9000155f970 EFLAGS: 00000297 [ 1763.768341][ C1] RAX: 0000000080000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 1763.768346][ C1] RDX: ffffc9000155ff58 RSI: 0000000000000001 RDI: 0000000000000001 [ 1763.768351][ C1] RBP: 0000000000000001 R08: 0000000000000012 R09: ffffc9000155fab0 [ 1763.768356][ C1] R10: fffff520002abf48 R11: 0000000000000000 R12: ffff888013da3880 [ 1763.768361][ C1] R13: ffffffff816cee00 R14: 00007fee9463f687 R15: 1ffff920002abf45 [ 1763.768366][ C1] FS: 00007fee953848c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 1763.768371][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1763.768375][ C1] CR2: 00007fee92765000 CR3: 0000000014da8000 CR4: 00000000001506e0 [ 1763.768380][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1763.768385][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1763.768390][ C1] Call Trace: [ 1763.768393][ C1] ? stack_trace_save+0x1e0/0x1e0 [ 1763.768397][ C1] __kernel_text_address+0x81/0x100 [ 1763.768401][ C1] unwind_get_return_address+0x48/0x80 [ 1763.768404][ C1] arch_stack_walk+0x98/0xe0 [ 1763.768408][ C1] stack_trace_save+0x104/0x1e0 [ 1763.768412][ C1] ? stack_trace_snprint+0xe0/0xe0 [ 1763.768416][ C1] __kasan_slab_alloc+0x96/0xd0 [ 1763.768419][ C1] ? __kasan_slab_alloc+0x96/0xd0 [ 1763.768423][ C1] ? kmem_cache_alloc+0x1d7/0x340 [ 1763.768427][ C1] ? getname_flags+0xba/0x640 [ 1763.768430][ C1] ? do_mkdirat+0x91/0x3e0 [ 1763.768434][ C1] ? do_syscall_64+0x3f/0xb0 [ 1763.768446][ C1] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1763.768450][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1763.768454][ C1] ? __fs_reclaim_acquire+0x30/0x30 [ 1763.768458][ C1] ? __might_sleep+0x100/0x100 [ 1763.768461][ C1] ? getname_flags+0xba/0x640 [ 1763.768465][ C1] ? getname_flags+0xba/0x640 [ 1763.768469][ C1] kmem_cache_alloc+0x1d7/0x340 [ 1763.768472][ C1] ? getname_flags+0xba/0x640 [ 1763.768476][ C1] getname_flags+0xba/0x640 [ 1763.768479][ C1] do_mkdirat+0x91/0x3e0 [ 1763.768483][ C1] ? print_irqtrace_events+0x220/0x220 [ 1763.768487][ C1] ? vtime_user_exit+0x2b2/0x3e0 [ 1763.768491][ C1] ? do_mknodat+0x5c0/0x5c0 [ 1763.768495][ C1] ? __secure_computing+0x19b/0x320 [ 1763.768499][ C1] ? syscall_enter_from_user_mode+0xf0/0x1c0 [ 1763.768502][ C1] do_syscall_64+0x3f/0xb0 [ 1763.768506][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1763.768510][ C1] RIP: 0033:0x7fee9463f687 [ 1763.768516][ C1] Code: 00 b8 ff ff ff ff c3 0f 1f 40 00 48 8b 05 09 d8 2b 00 64 c7 00 5f 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 d7 2b 00 f7 d8 64 89 01 48 [ 1763.768524][ C1] RSP: 002b:00007ffd28ebf958 EFLAGS: 00000293 ORIG_RAX: 0000000000000053 [ 1763.768542][ C1] RAX: ffffffffffffffda RBX: 00007ffd28ec2870 RCX: 00007fee9463f687 [ 1763.768547][ C1] RDX: 00007fee950b0a00 RSI: 00000000000001ed RDI: 000055c4baa628a0 [ 1763.768552][ C1] RBP: 00007ffd28ebf990 R08: 0000000000000000 R09: 0000000000000000 [ 1763.768557][ C1] R10: 0000000000000069 R11: 0000000000000293 R12: 0000000000000000 [ 1763.768562][ C1] R13: 0000000000000000 R14: 00007ffd28ec2870 R15: 00007ffd28ebfe80 [ 1764.126646][ T1615] Kernel panic - not syncing: hung_task: blocked tasks [ 1764.133605][ T1615] CPU: 1 PID: 1615 Comm: khungtaskd Not tainted 5.13.0-rc4-syzkaller #0 [ 1764.141948][ T1615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1764.152021][ T1615] Call Trace: [ 1764.155319][ T1615] dump_stack+0x202/0x31e [ 1764.159673][ T1615] ? show_regs_print_info+0x12/0x12 [ 1764.164889][ T1615] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1764.170637][ T1615] ? lockdep_hardirqs_off+0x69/0xf0 [ 1764.175892][ T1615] panic+0x2e1/0x850 [ 1764.179861][ T1615] ? _raw_spin_unlock+0x40/0x40 [ 1764.184753][ T1615] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1764.190916][ T1615] ? nmi_panic+0x90/0x90 [ 1764.195161][ T1615] ? preempt_schedule_thunk+0x16/0x18 [ 1764.200536][ T1615] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1764.206690][ T1615] ? nmi_trigger_cpumask_backtrace+0x29b/0x2f0 [ 1764.212864][ T1615] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2f0 [ 1764.219028][ T1615] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1764.225105][ T1615] watchdog+0xd3b/0xd40 [ 1764.229278][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1764.234313][ T1615] kthread+0x39a/0x3c0 [ 1764.238388][ T1615] ? hungtask_pm_notify+0x50/0x50 [ 1764.243427][ T1615] ? kthread_blkcg+0xd0/0xd0 [ 1764.248020][ T1615] ret_from_fork+0x1f/0x30 [ 1764.253125][ T1615] Kernel Offset: disabled [ 1764.257449][ T1615] Rebooting in 86400 seconds..