Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.659191] INFO: task syz-executor227:8132 blocked for more than 140 seconds. [ 717.666668] Not tainted 4.19.211-syzkaller #0 [ 717.671929] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.679965] syz-executor227 D27952 8132 8130 0x00000004 [ 717.685585] Call Trace: [ 717.688158] __schedule+0x887/0x2040 [ 717.691936] ? io_schedule_timeout+0x140/0x140 [ 717.696571] ? _raw_spin_unlock+0x29/0x40 [ 717.700775] schedule+0x8d/0x1b0 [ 717.704145] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.709936] ? fuse_do_ioctl+0x1850/0x1850 [ 717.714161] ? wait_woken+0x250/0x250 [ 717.717944] ? fuse_writepage_locked+0xb63/0x1010 [ 717.722837] ? fuse_writepage_locked+0x1010/0x1010 [ 717.727764] fuse_launder_page+0xb6/0xe0 [ 717.731893] invalidate_inode_pages2_range+0x795/0x1110 [ 717.737256] ? clear_shadow_entry+0x170/0x170 [ 717.741827] ? fuse_file_alloc+0x1d9/0x270 [ 717.746070] ? do_raw_spin_unlock+0x171/0x230 [ 717.750642] ? _raw_spin_unlock+0x29/0x40 [ 717.754788] ? fuse_do_open+0x1c4/0x500 [ 717.758758] fuse_finish_open+0x2e2/0x590 [ 717.762966] fuse_open_common+0x254/0x2c0 [ 717.767110] do_dentry_open+0x4aa/0x1160 [ 717.771249] ? fuse_open_common+0x2c0/0x2c0 [ 717.775568] ? inode_permission.part.0+0x10c/0x450 [ 717.780693] ? chown_common+0x550/0x550 [ 717.784664] ? inode_permission+0x3d/0x140 [ 717.788885] path_openat+0x793/0x2df0 [ 717.792769] ? path_lookupat+0x8d0/0x8d0 [ 717.796826] ? mark_held_locks+0xf0/0xf0 [ 717.800938] do_filp_open+0x18c/0x3f0 [ 717.804732] ? may_open_dev+0xf0/0xf0 [ 717.808532] ? lock_downgrade+0x720/0x720 [ 717.812753] ? lock_acquire+0x170/0x3c0 [ 717.816731] ? __alloc_fd+0x34/0x570 [ 717.820498] ? do_raw_spin_unlock+0x171/0x230 [ 717.824991] ? _raw_spin_unlock+0x29/0x40 [ 717.829203] ? __alloc_fd+0x28d/0x570 [ 717.833000] do_sys_open+0x3b3/0x520 [ 717.836697] ? filp_open+0x70/0x70 [ 717.840288] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.845649] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.850727] ? do_syscall_64+0x21/0x620 [ 717.854706] do_syscall_64+0xf9/0x620 [ 717.858495] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.863724] RIP: 0033:0x7f0ebfcf14c9 [ 717.867433] Code: Bad RIP value. [ 717.870851] RSP: 002b:00007f0ebfca22f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 717.878548] RAX: ffffffffffffffda RBX: 00007f0ebfd824c0 RCX: 00007f0ebfcf14c9 [ 717.885859] RDX: 00007f0ebfcf14c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 717.893206] RBP: 00007f0ebfd4f164 R08: 0000000000000000 R09: 0000000000000000 [ 717.900507] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.907774] R13: 00007f0ebfd4b158 R14: 00007f0ebfd4d160 R15: 00007f0ebfd824c8 [ 717.915125] [ 717.915125] Showing all locks held in the system: [ 717.921514] 1 lock held by khungtaskd/1570: [ 717.925818] #0: 00000000d5c4946d (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.934501] 2 locks held by syz-executor227/8132: [ 717.939381] #0: 00000000e0ebf056 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 717.947350] #1: 00000000b97c5ba2 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 717.956946] [ 717.958562] ============================================= [ 717.958562] [ 717.965628] NMI backtrace for cpu 1 [ 717.969323] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 717.976754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 717.986084] Call Trace: [ 717.988658] dump_stack+0x1fc/0x2ef [ 717.992266] nmi_cpu_backtrace.cold+0x63/0xa2 [ 717.996744] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.001222] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.006481] watchdog+0x991/0xe60 [ 718.009920] ? reset_hung_task_detector+0x30/0x30 [ 718.014754] kthread+0x33f/0x460 [ 718.018098] ? kthread_park+0x180/0x180 [ 718.022055] ret_from_fork+0x24/0x30 [ 718.025884] Sending NMI from CPU 1 to CPUs 0: [ 718.030739] NMI backtrace for cpu 0 [ 718.030745] CPU: 0 PID: 4683 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.030751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 718.030755] RIP: 0010:lock_release+0x429/0x8b0 [ 718.030765] Code: 84 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 95 03 00 00 48 83 3d 7b 34 a6 08 00 0f 84 cc 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 49 c7 04 04 00 00 00 [ 718.030769] RSP: 0018:ffff8880a15d7dd8 EFLAGS: 00000086 [ 718.030777] RAX: 1ffffffff13e3051 RBX: ffff8880a15ca340 RCX: 1ffff110142b9579 [ 718.030782] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000086 [ 718.030787] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 718.030792] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff110142bafbe [ 718.030797] R13: 0000000000000000 R14: ffff8880a15ca340 R15: 0000000000000001 [ 718.030802] FS: 00007feac29d08c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.030806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.030811] CR2: 00007feabfda1000 CR3: 00000000a18f3000 CR4: 00000000003406f0 [ 718.030816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.030821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.030824] Call Trace: [ 718.030827] ? lock_downgrade+0x720/0x720 [ 718.030831] ? lock_acquire+0x170/0x3c0 [ 718.030834] ? task_work_run+0x64/0x1c0 [ 718.030837] _raw_spin_unlock_irq+0x17/0x80 [ 718.030841] task_work_run+0x11c/0x1c0 [ 718.030844] exit_to_usermode_loop+0x251/0x2a0 [ 718.030848] do_syscall_64+0x538/0x620 [ 718.030852] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.030855] RIP: 0033:0x7feac1f5f840 [ 718.030865] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 718.030869] RSP: 002b:00007ffd28d75ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 718.030878] RAX: fffffffffffffffe RBX: 00007ffd28d76300 RCX: 00007feac1f5f840 [ 718.030883] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 00005620f3b57600 [ 718.030888] RBP: 000000000000000d R08: 000000000000ffc0 R09: 00000000ffffffff [ 718.030893] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 718.030898] R13: 00005620f3b52040 R14: 00007ffd28d762c0 R15: 00005620f3b57650 [ 718.031718] Kernel panic - not syncing: hung_task: blocked tasks [ 718.261589] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.269013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 718.279558] Call Trace: [ 718.282132] dump_stack+0x1fc/0x2ef [ 718.285837] panic+0x26a/0x50e [ 718.289032] ? __warn_printk+0xf3/0xf3 [ 718.292901] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.297376] ? ___preempt_schedule+0x16/0x18 [ 718.301766] ? watchdog+0x991/0xe60 [ 718.305372] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.310823] watchdog+0x9a2/0xe60 [ 718.314262] ? reset_hung_task_detector+0x30/0x30 [ 718.319088] kthread+0x33f/0x460 [ 718.322433] ? kthread_park+0x180/0x180 [ 718.326385] ret_from_fork+0x24/0x30 [ 718.330348] Kernel Offset: disabled [ 718.333970] Rebooting in 86400 seconds..