[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. 2023/01/12 04:55:35 ignoring optional flag "sandboxArg"="0" 2023/01/12 04:55:35 parsed 1 programs 2023/01/12 04:55:35 executed programs: 0 syzkaller login: [ 1586.014740] IPVS: ftp: loaded support on port[0] = 21 [ 1586.165656] chnl_net:caif_netlink_parms(): no params data found [ 1586.207315] bridge0: port 1(bridge_slave_0) entered blocking state [ 1586.213829] bridge0: port 1(bridge_slave_0) entered disabled state [ 1586.220807] device bridge_slave_0 entered promiscuous mode [ 1586.229694] bridge0: port 2(bridge_slave_1) entered blocking state [ 1586.236597] bridge0: port 2(bridge_slave_1) entered disabled state [ 1586.244297] device bridge_slave_1 entered promiscuous mode [ 1586.261795] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1586.270496] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1586.288836] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1586.296375] team0: Port device team_slave_0 added [ 1586.301742] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1586.309573] team0: Port device team_slave_1 added [ 1586.324652] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1586.330882] 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. [ 1586.356692] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1586.368291] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1586.374912] 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. [ 1586.400527] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1586.415044] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1586.422335] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1586.442473] device hsr_slave_0 entered promiscuous mode [ 1586.448132] device hsr_slave_1 entered promiscuous mode [ 1586.454661] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1586.461566] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1586.522948] bridge0: port 2(bridge_slave_1) entered blocking state [ 1586.529395] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1586.536256] bridge0: port 1(bridge_slave_0) entered blocking state [ 1586.542660] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1586.574429] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1586.580487] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1586.588800] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1586.597399] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1586.606515] bridge0: port 1(bridge_slave_0) entered disabled state [ 1586.613734] bridge0: port 2(bridge_slave_1) entered disabled state [ 1586.620626] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1586.631402] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1586.638149] 8021q: adding VLAN 0 to HW filter on device team0 [ 1586.646978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1586.654666] bridge0: port 1(bridge_slave_0) entered blocking state [ 1586.661009] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1586.670087] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1586.678133] bridge0: port 2(bridge_slave_1) entered blocking state [ 1586.684512] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1586.703447] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1586.711219] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1586.718943] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1586.727863] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1586.735007] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1586.745078] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1586.751063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1586.779499] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1586.787364] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1586.794087] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1586.804873] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1586.837619] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1586.847503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1586.877832] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1586.885640] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1586.892060] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1586.901585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1586.909554] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1586.916739] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1586.925815] device veth0_vlan entered promiscuous mode [ 1586.934612] device veth1_vlan entered promiscuous mode [ 1586.940345] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1586.949838] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1586.960431] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1586.970353] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1586.979051] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1586.986958] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1586.996345] device veth0_macvtap entered promiscuous mode [ 1587.003054] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1587.010740] device veth1_macvtap entered promiscuous mode [ 1587.019525] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1587.028622] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1587.038536] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1587.045468] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1587.054008] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1587.064063] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1587.073477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1587.178466] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1587.185981] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1587.201874] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1587.211641] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1587.218047] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1587.226439] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1587.234036] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1587.240852] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1588.063194] Bluetooth: hci0: command 0x0409 tx timeout [ 1590.142221] Bluetooth: hci0: command 0x041b tx timeout [ 1592.222655] Bluetooth: hci0: command 0x040f tx timeout [ 1594.301930] Bluetooth: hci0: command 0x0419 tx timeout [ 1608.382143] ieee802154 phy0 wpan0: encryption failed: -22 [ 1608.387782] ieee802154 phy1 wpan1: encryption failed: -22 [ 1669.817479] ieee802154 phy0 wpan0: encryption failed: -22 [ 1669.823051] ieee802154 phy1 wpan1: encryption failed: -22 [ 1712.853232] Bluetooth: hci0: command 0x0406 tx timeout [ 1731.252838] ieee802154 phy0 wpan0: encryption failed: -22 [ 1731.258439] ieee802154 phy1 wpan1: encryption failed: -22 [ 1741.490933] INFO: task syz-executor.0:8124 blocked for more than 140 seconds. [ 1741.498276] Not tainted 4.19.211-syzkaller #0 [ 1741.503326] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1741.511354] syz-executor.0 D23864 8124 1 0x00000004 [ 1741.516974] Call Trace: [ 1741.519547] __schedule+0x887/0x2040 [ 1741.523301] ? io_schedule_timeout+0x140/0x140 [ 1741.527879] ? lock_downgrade+0x720/0x720 [ 1741.532082] ? __mutex_lock+0x418/0x1190 [ 1741.536139] schedule+0x8d/0x1b0 [ 1741.539487] schedule_preempt_disabled+0xf/0x20 [ 1741.544185] __mutex_lock+0x5f0/0x1190 [ 1741.548072] ? fuse_lock_inode+0xaf/0xe0 [ 1741.552181] ? mutex_trylock+0x1a0/0x1a0 [ 1741.556237] ? __d_lookup_rcu+0x382/0x6b0 [ 1741.560369] ? check_preemption_disabled+0x41/0x280 [ 1741.565429] fuse_lock_inode+0xaf/0xe0 [ 1741.569314] fuse_lookup+0x86/0x410 [ 1741.572988] ? kernel_text_address+0xbd/0xf0 [ 1741.577393] ? fuse_lookup_name+0x5c0/0x5c0 [ 1741.581753] ? __d_lookup_rcu+0x6b0/0x6b0 [ 1741.585901] ? __lockdep_init_map+0x100/0x5a0 [ 1741.590377] ? __lockdep_init_map+0x100/0x5a0 [ 1741.594934] __lookup_slow+0x246/0x4a0 [ 1741.598818] ? follow_dotdot_rcu+0x1040/0x1040 [ 1741.603447] ? lookup_fast+0x4e9/0x1080 [ 1741.607424] ? walk_component+0x798/0xda0 [ 1741.611636] walk_component+0x7ac/0xda0 [ 1741.615608] ? lookup_fast+0x1080/0x1080 [ 1741.619648] ? lock_downgrade+0x720/0x720 [ 1741.623839] ? fuse_allow_current_process+0x107/0x340 [ 1741.629027] ? fuse_getattr+0x2e0/0x2e0 [ 1741.633494] ? fuse_permission+0x168/0x5a0 [ 1741.637723] ? security_inode_permission+0xc5/0xf0 [ 1741.642690] ? inode_permission.part.0+0x10c/0x450 [ 1741.647617] link_path_walk.part.0+0x901/0x1230 [ 1741.652341] ? walk_component+0xda0/0xda0 [ 1741.656482] ? percpu_counter_add_batch+0x126/0x180 [ 1741.661555] path_openat+0x1db/0x2df0 [ 1741.665365] ? path_lookupat+0x8d0/0x8d0 [ 1741.669412] ? mark_held_locks+0xf0/0xf0 [ 1741.673524] ? lock_downgrade+0x720/0x720 [ 1741.677668] do_filp_open+0x18c/0x3f0 [ 1741.681498] ? may_open_dev+0xf0/0xf0 [ 1741.685300] ? lock_downgrade+0x720/0x720 [ 1741.689428] ? lock_acquire+0x170/0x3c0 [ 1741.693455] ? __alloc_fd+0x34/0x570 [ 1741.697163] ? do_raw_spin_unlock+0x171/0x230 [ 1741.701690] ? _raw_spin_unlock+0x29/0x40 [ 1741.705832] ? __alloc_fd+0x28d/0x570 [ 1741.709617] do_sys_open+0x3b3/0x520 [ 1741.713418] ? filp_open+0x70/0x70 [ 1741.716953] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1741.722349] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1741.727365] ? do_syscall_64+0x21/0x620 [ 1741.731409] do_syscall_64+0xf9/0x620 [ 1741.735206] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1741.740648] RIP: 0033:0x7f17b0e57c38 [ 1741.744411] Code: Bad RIP value. [ 1741.747768] RSP: 002b:00007ffdd1e3dea0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 1741.755569] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f17b0e57c38 [ 1741.762881] RDX: 0000000000090800 RSI: 00007f17b0eb2bc8 RDI: 00000000ffffff9c [ 1741.770141] RBP: 00007ffdd1e3df6c R08: 0000000000090800 R09: 00007f17b0eb2bc8 [ 1741.777464] R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000 [ 1741.784770] R13: 00000000001838d4 R14: 0000000000000008 R15: 00007ffdd1e3dfd0 [ 1741.792123] INFO: task syz-executor.0:8394 blocked for more than 140 seconds. [ 1741.799384] Not tainted 4.19.211-syzkaller #0 [ 1741.804426] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1741.812450] syz-executor.0 D27120 8394 8124 0x00000004 [ 1741.818067] Call Trace: [ 1741.820661] __schedule+0x887/0x2040 [ 1741.824423] ? io_schedule_timeout+0x140/0x140 [ 1741.829001] ? prepare_to_wait_exclusive+0x2d0/0x2d0 [ 1741.834167] schedule+0x8d/0x1b0 [ 1741.837530] request_wait_answer+0x3dc/0x750 [ 1741.842409] ? flush_bg_queue+0x390/0x390 [ 1741.846549] ? wait_woken+0x250/0x250 [ 1741.850375] __fuse_request_send+0x123/0x1c0 [ 1741.854841] fuse_simple_request+0x2e6/0x820 [ 1741.859253] fuse_lookup_name+0x24c/0x5c0 [ 1741.863442] ? fuse_lock_inode+0xaf/0xe0 [ 1741.867498] ? fuse_readdir+0x12f0/0x12f0 [ 1741.871697] ? d_alloc_parallel+0x744/0x19e0 [ 1741.876111] fuse_lookup+0xdf/0x410 [ 1741.879721] ? fuse_lookup_name+0x5c0/0x5c0 [ 1741.884097] ? __lockdep_init_map+0x100/0x5a0 [ 1741.888585] ? __lockdep_init_map+0x100/0x5a0 [ 1741.893525] __lookup_slow+0x246/0x4a0 [ 1741.897414] ? follow_dotdot_rcu+0x1040/0x1040 [ 1741.902038] ? lookup_fast+0x4e9/0x1080 [ 1741.906021] ? walk_component+0x798/0xda0 [ 1741.910157] walk_component+0x7ac/0xda0 [ 1741.914185] ? lookup_fast+0x1080/0x1080 [ 1741.918241] ? lock_downgrade+0x720/0x720 [ 1741.922421] ? fuse_allow_current_process+0x107/0x340 [ 1741.927616] ? fuse_getattr+0x2e0/0x2e0 [ 1741.931636] ? fuse_permission+0x168/0x5a0 [ 1741.935864] ? security_inode_permission+0xc5/0xf0 [ 1741.941102] ? inode_permission.part.0+0x10c/0x450 [ 1741.946032] link_path_walk.part.0+0x901/0x1230 [ 1741.950686] ? walk_component+0xda0/0xda0 [ 1741.954897] ? percpu_counter_add_batch+0x126/0x180 [ 1741.959925] path_openat+0x1db/0x2df0 [ 1741.963769] ? path_lookupat+0x8d0/0x8d0 [ 1741.967825] ? mark_held_locks+0xf0/0xf0 [ 1741.971933] ? mark_held_locks+0xf0/0xf0 [ 1741.975993] do_filp_open+0x18c/0x3f0 [ 1741.979772] ? may_open_dev+0xf0/0xf0 [ 1741.983617] ? lock_downgrade+0x720/0x720 [ 1741.987760] ? lock_acquire+0x170/0x3c0 [ 1741.991785] ? __alloc_fd+0x34/0x570 [ 1741.995494] ? do_raw_spin_unlock+0x171/0x230 [ 1741.999972] ? _raw_spin_unlock+0x29/0x40 [ 1742.004152] ? __alloc_fd+0x28d/0x570 [ 1742.007965] do_sys_open+0x3b3/0x520 [ 1742.011749] ? filp_open+0x70/0x70 [ 1742.015288] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1742.020643] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1742.025703] ? do_syscall_64+0x21/0x620 [ 1742.029687] do_syscall_64+0xf9/0x620 [ 1742.033549] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1742.038730] RIP: 0033:0x7f17b0e0a254 [ 1742.042484] Code: Bad RIP value. [ 1742.046045] RSP: 002b:00007f17b01a8ec0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 1742.053948] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f17b0e0a254 [ 1742.061264] RDX: 0000000000000002 RSI: 00007f17b01a8fe0 RDI: 00000000ffffff9c [ 1742.068533] RBP: 00007f17b01a8fe0 R08: 0000000000000000 R09: 00000000000010f7 [ 1742.075855] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 [ 1742.083168] R13: 00007f17b01a8fdc R14: 00007f17b01a8fe0 R15: 0000000020001142 [ 1742.090455] [ 1742.090455] Showing all locks held in the system: [ 1742.096850] 1 lock held by khungtaskd/1570: [ 1742.101211] #0: 000000006cf63474 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 1742.109819] 1 lock held by in:imklog/7826: [ 1742.114101] 2 locks held by syz-executor.0/8124: [ 1742.118847] #0: 0000000092a71e53 (&type->i_mutex_dir_key#8){++++}, at: walk_component+0x798/0xda0 [ 1742.128014] #1: 00000000815659b0 (&fi->mutex){+.+.}, at: fuse_lock_inode+0xaf/0xe0 [ 1742.135888] 2 locks held by syz-executor.0/8394: [ 1742.140628] #0: 0000000092a71e53 (&type->i_mutex_dir_key#8){++++}, at: walk_component+0x798/0xda0 [ 1742.150076] #1: 00000000815659b0 (&fi->mutex){+.+.}, at: fuse_lock_inode+0xaf/0xe0 [ 1742.157958] [ 1742.159577] ============================================= [ 1742.159577] [ 1742.166672] NMI backtrace for cpu 0 [ 1742.170295] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1742.177722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1742.187062] Call Trace: [ 1742.189636] dump_stack+0x1fc/0x2ef [ 1742.193269] nmi_cpu_backtrace.cold+0x63/0xa2 [ 1742.197745] ? lapic_can_unplug_cpu+0x80/0x80 [ 1742.202224] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 1742.207482] watchdog+0x991/0xe60 [ 1742.210920] ? reset_hung_task_detector+0x30/0x30 [ 1742.215757] kthread+0x33f/0x460 [ 1742.219108] ? kthread_park+0x180/0x180 [ 1742.223064] ret_from_fork+0x24/0x30 [ 1742.226854] Sending NMI from CPU 0 to CPUs 1: [ 1742.231828] NMI backtrace for cpu 1 [ 1742.231834] CPU: 1 PID: 8136 Comm: kworker/u4:0 Not tainted 4.19.211-syzkaller #0 [ 1742.231840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1742.231844] Workqueue: bat_events batadv_nc_worker [ 1742.231850] RIP: 0010:__lock_acquire+0x7a7/0x3ff0 [ 1742.231861] Code: 89 d1 48 c1 e9 03 80 3c 11 00 0f 85 e5 26 00 00 48 8b 4c 24 18 49 89 1a 48 ba 00 00 00 00 00 fc ff df 48 c1 e9 03 0f b6 14 11 <84> d2 74 09 80 fa 03 0f 8e 93 26 00 00 41 8b 95 80 08 00 00 85 d2 [ 1742.231865] RSP: 0018:ffff8880afe8f9e8 EFLAGS: 00000806 [ 1742.231872] RAX: 0000000000000613 RBX: 23655e1ade3c1a41 RCX: 1ffff11015ed5928 [ 1742.231877] RDX: 0000000000000000 RSI: ffff8880af6ac998 RDI: ffffffff8cdded50 [ 1742.231882] RBP: ffff8880af6ac9ba R08: 0000000000000613 R09: 0000000000000002 [ 1742.231888] R10: ffff8880af6ac998 R11: 0000000000000000 R12: 0000000000040613 [ 1742.231892] R13: ffff8880af6ac0c0 R14: ffff8880af6ac9b0 R15: 0000000000000000 [ 1742.231898] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 1742.231902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1742.231908] CR2: 00007f3e25b1f028 CR3: 00000000a1334000 CR4: 00000000003406e0 [ 1742.231913] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1742.231917] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1742.231920] Call Trace: [ 1742.231924] ? __lock_acquire+0x6de/0x3ff0 [ 1742.231927] ? mark_held_locks+0xf0/0xf0 [ 1742.231931] ? __lock_acquire+0x6de/0x3ff0 [ 1742.231934] ? mark_held_locks+0xf0/0xf0 [ 1742.231937] ? update_curr+0x3b9/0x870 [ 1742.231941] ? batadv_nc_purge_paths+0x22d/0x310 [ 1742.231945] lock_acquire+0x170/0x3c0 [ 1742.231948] ? batadv_nc_purge_paths+0xdc/0x310 [ 1742.231953] ? batadv_nc_to_purge_nc_path_decoding+0x150/0x150 [ 1742.231956] _raw_spin_lock_bh+0x2f/0x40 [ 1742.231960] ? batadv_nc_purge_paths+0xdc/0x310 [ 1742.231963] batadv_nc_purge_paths+0xdc/0x310 [ 1742.231967] batadv_nc_worker+0x6fa/0xd50 [ 1742.231970] process_one_work+0x864/0x1570 [ 1742.231974] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1742.231977] worker_thread+0x64c/0x1130 [ 1742.231981] ? __kthread_parkme+0x133/0x1e0 [ 1742.231984] ? process_one_work+0x1570/0x1570 [ 1742.231987] kthread+0x33f/0x460 [ 1742.231991] ? kthread_park+0x180/0x180 [ 1742.231994] ret_from_fork+0x24/0x30 [ 1742.232392] Kernel panic - not syncing: hung_task: blocked tasks [ 1742.456342] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1742.463763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1742.473097] Call Trace: [ 1742.475695] dump_stack+0x1fc/0x2ef [ 1742.479308] panic+0x26a/0x50e [ 1742.482482] ? __warn_printk+0xf3/0xf3 [ 1742.486352] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 1742.491438] ? cpumask_next+0x3c/0x40 [ 1742.495220] ? printk_safe_flush+0xd6/0x120 [ 1742.499519] ? watchdog+0x991/0xe60 [ 1742.503125] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 1742.508558] watchdog+0x9a2/0xe60 [ 1742.511993] ? reset_hung_task_detector+0x30/0x30 [ 1742.516821] kthread+0x33f/0x460 [ 1742.520168] ? kthread_park+0x180/0x180 [ 1742.524123] ret_from_fork+0x24/0x30 [ 1742.528093] Kernel Offset: disabled [ 1742.531709] Rebooting in 86400 seconds..