Warning: Permanently added '10.128.0.183' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.772247] INFO: task syz-executor213:8087 blocked for more than 140 seconds. [ 717.779723] Not tainted 4.19.211-syzkaller #0 [ 717.785528] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.793666] syz-executor213 D27232 8087 8085 0x00000004 [ 717.799295] Call Trace: [ 717.801868] __schedule+0x887/0x2040 [ 717.805888] ? io_schedule_timeout+0x140/0x140 [ 717.810956] ? _raw_spin_unlock+0x29/0x40 [ 717.815302] schedule+0x8d/0x1b0 [ 717.818676] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.824554] ? fuse_do_ioctl+0x1850/0x1850 [ 717.828788] ? wait_woken+0x250/0x250 [ 717.832747] ? fuse_writepage_locked+0xb63/0x1010 [ 717.837591] ? fuse_writepage_locked+0x1010/0x1010 [ 717.842683] fuse_launder_page+0xb6/0xe0 [ 717.846823] invalidate_inode_pages2_range+0x795/0x1110 [ 717.852449] ? clear_shadow_entry+0x170/0x170 [ 717.856953] ? fuse_file_alloc+0x1d9/0x270 [ 717.861179] ? do_raw_spin_unlock+0x171/0x230 [ 717.865728] ? _raw_spin_unlock+0x29/0x40 [ 717.869888] ? fuse_do_open+0x1c4/0x500 [ 717.873914] fuse_finish_open+0x2e2/0x590 [ 717.878068] fuse_open_common+0x254/0x2c0 [ 717.882261] do_dentry_open+0x4aa/0x1160 [ 717.886326] ? fuse_open_common+0x2c0/0x2c0 [ 717.890638] ? inode_permission.part.0+0x10c/0x450 [ 717.895705] ? chown_common+0x550/0x550 [ 717.899686] ? inode_permission+0x3d/0x140 [ 717.903997] path_openat+0x793/0x2df0 [ 717.907989] ? path_lookupat+0x8d0/0x8d0 [ 717.912037] ? mark_held_locks+0xf0/0xf0 [ 717.916165] do_filp_open+0x18c/0x3f0 [ 717.919971] ? may_open_dev+0xf0/0xf0 [ 717.923840] ? lock_downgrade+0x720/0x720 [ 717.927988] ? lock_acquire+0x170/0x3c0 [ 717.931954] ? __alloc_fd+0x34/0x570 [ 717.935722] ? do_raw_spin_unlock+0x171/0x230 [ 717.940226] ? _raw_spin_unlock+0x29/0x40 [ 717.944423] ? __alloc_fd+0x28d/0x570 [ 717.948229] do_sys_open+0x3b3/0x520 [ 717.951927] ? filp_open+0x70/0x70 [ 717.955508] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.960872] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.965969] ? do_syscall_64+0x21/0x620 [ 717.969948] do_syscall_64+0xf9/0x620 [ 717.973808] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.979003] RIP: 0033:0x7f0402e204c9 [ 717.982759] Code: Bad RIP value. [ 717.986121] RSP: 002b:00007f0402dd12f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 717.993870] RAX: ffffffffffffffda RBX: 00007f0402eb14c0 RCX: 00007f0402e204c9 [ 718.001153] RDX: 00007f0402e204c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 718.008469] RBP: 00007f0402e7e164 R08: 0000000000000000 R09: 0000000000000000 [ 718.015927] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 718.023228] R13: 00007f0402e7a158 R14: 00007f0402e7c160 R15: 00007f0402eb14c8 [ 718.030519] [ 718.030519] Showing all locks held in the system: [ 718.036911] 1 lock held by khungtaskd/1570: [ 718.041222] #0: 000000004773bab3 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.049916] 2 locks held by syz-executor213/8087: [ 718.054896] #0: 00000000be84e0d9 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 718.062914] #1: 00000000c5ac2d4c (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 718.072539] [ 718.074155] ============================================= [ 718.074155] [ 718.081150] NMI backtrace for cpu 1 [ 718.084820] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.092272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.101785] Call Trace: [ 718.104753] dump_stack+0x1fc/0x2ef [ 718.108372] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.112849] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.117323] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.122583] watchdog+0x991/0xe60 [ 718.126019] ? reset_hung_task_detector+0x30/0x30 [ 718.130845] kthread+0x33f/0x460 [ 718.134192] ? kthread_park+0x180/0x180 [ 718.138147] ret_from_fork+0x24/0x30 [ 718.141931] Sending NMI from CPU 1 to CPUs 0: [ 718.146895] NMI backtrace for cpu 0 [ 718.146901] CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 4.19.211-syzkaller #0 [ 718.146907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.146912] RIP: 0010:del_timer_sync+0x0/0x270 [ 718.146923] Code: 89 e0 5b 5d 41 5c 41 5d c3 41 bc ff ff ff ff eb b6 e8 84 e1 44 00 eb 91 e8 1d 25 e4 ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 <41> 54 55 53 48 89 fb e8 74 04 0f 00 48 c7 c0 80 82 f1 89 48 ba 00 [ 718.146927] RSP: 0018:ffff8880b5a67c40 EFLAGS: 00000246 [ 718.146934] RAX: 0000000080000000 RBX: 000000010000a226 RCX: 0000000000000000 [ 718.146939] RDX: 0000000000000004 RSI: 1ffff11016b4cf73 RDI: ffff8880b5a67cc0 [ 718.146944] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 718.146949] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b5a67cc0 [ 718.146954] R13: 1ffff11016b4cf8e R14: ffff8880ba022b40 R15: 00000000ffffffff [ 718.146959] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.146964] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.146969] CR2: 00007f7930392000 CR3: 00000000a0cbb000 CR4: 00000000003406f0 [ 718.146973] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.146978] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.146981] Call Trace: [ 718.146984] schedule_timeout+0x4d7/0xfe0 [ 718.146988] ? prepare_to_swait_event+0x5b/0x540 [ 718.146992] ? usleep_range+0x170/0x170 [ 718.146996] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.146999] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 718.147003] ? collect_expired_timers+0x2a0/0x2a0 [ 718.147007] ? swake_up_all+0x340/0x340 [ 718.147010] rcu_gp_kthread+0xdad/0x21c0 [ 718.147013] ? lock_acquire+0x170/0x3c0 [ 718.147017] ? __rcu_read_unlock+0x160/0x160 [ 718.147021] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.147025] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 718.147029] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 718.147032] ? __kthread_parkme+0x133/0x1e0 [ 718.147036] ? __rcu_read_unlock+0x160/0x160 [ 718.147039] kthread+0x33f/0x460 [ 718.147042] ? kthread_park+0x180/0x180 [ 718.147045] ret_from_fork+0x24/0x30 [ 718.147823] Kernel panic - not syncing: hung_task: blocked tasks [ 718.355554] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.362975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.372308] Call Trace: [ 718.374882] dump_stack+0x1fc/0x2ef [ 718.378493] panic+0x26a/0x50e [ 718.381666] ? __warn_printk+0xf3/0xf3 [ 718.385535] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.390008] ? ___preempt_schedule+0x16/0x18 [ 718.394397] ? watchdog+0x991/0xe60 [ 718.398003] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.403434] watchdog+0x9a2/0xe60 [ 718.406867] ? reset_hung_task_detector+0x30/0x30 [ 718.411689] kthread+0x33f/0x460 [ 718.415034] ? kthread_park+0x180/0x180 [ 718.418988] ret_from_fork+0x24/0x30 [ 718.422953] Kernel Offset: disabled [ 718.428481] Rebooting in 86400 seconds..