Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.746460] INFO: task syz-executor222:8094 blocked for more than 140 seconds. [ 717.754049] Not tainted 4.19.211-syzkaller #0 [ 717.760287] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.768352] syz-executor222 D27952 8094 8092 0x00000004 [ 717.773984] Call Trace: [ 717.776625] __schedule+0x887/0x2040 [ 717.780344] ? io_schedule_timeout+0x140/0x140 [ 717.784915] ? _raw_spin_unlock+0x29/0x40 [ 717.789114] schedule+0x8d/0x1b0 [ 717.792485] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.798243] ? fuse_do_ioctl+0x1850/0x1850 [ 717.802477] ? wait_woken+0x250/0x250 [ 717.806340] ? fuse_writepage_locked+0xb63/0x1010 [ 717.811209] ? fuse_writepage_locked+0x1010/0x1010 [ 717.816226] fuse_launder_page+0xb6/0xe0 [ 717.820361] invalidate_inode_pages2_range+0x795/0x1110 [ 717.825997] ? clear_shadow_entry+0x170/0x170 [ 717.830561] ? fuse_file_alloc+0x1d9/0x270 [ 717.834800] ? do_raw_spin_unlock+0x171/0x230 [ 717.839346] ? _raw_spin_unlock+0x29/0x40 [ 717.843505] ? fuse_do_open+0x1c4/0x500 [ 717.847568] fuse_finish_open+0x2e2/0x590 [ 717.851715] fuse_open_common+0x254/0x2c0 [ 717.855847] do_dentry_open+0x4aa/0x1160 [ 717.859991] ? fuse_open_common+0x2c0/0x2c0 [ 717.864320] ? inode_permission.part.0+0x10c/0x450 [ 717.869301] ? chown_common+0x550/0x550 [ 717.873362] ? inode_permission+0x3d/0x140 [ 717.877639] path_openat+0x793/0x2df0 [ 717.881445] ? path_lookupat+0x8d0/0x8d0 [ 717.885499] ? mark_held_locks+0xf0/0xf0 [ 717.889709] do_filp_open+0x18c/0x3f0 [ 717.893513] ? may_open_dev+0xf0/0xf0 [ 717.897365] ? lock_downgrade+0x720/0x720 [ 717.901513] ? lock_acquire+0x170/0x3c0 [ 717.910575] ? __alloc_fd+0x34/0x570 [ 717.914295] ? do_raw_spin_unlock+0x171/0x230 [ 717.918840] ? _raw_spin_unlock+0x29/0x40 [ 717.922995] ? __alloc_fd+0x28d/0x570 [ 717.926852] do_sys_open+0x3b3/0x520 [ 717.930580] ? filp_open+0x70/0x70 [ 717.934109] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.939535] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.944560] ? do_syscall_64+0x21/0x620 [ 717.948597] do_syscall_64+0xf9/0x620 [ 717.952399] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.957631] RIP: 0033:0x7f6e7a9c34c9 [ 717.961345] Code: Bad RIP value. [ 717.964690] RSP: 002b:00007f6e7a9742f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 717.973028] RAX: ffffffffffffffda RBX: 00007f6e7aa544c0 RCX: 00007f6e7a9c34c9 [ 717.980369] RDX: 00007f6e7a9c34c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 717.987693] RBP: 00007f6e7aa21164 R08: 0000000000000000 R09: 0000000000000000 [ 717.994966] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 718.002279] R13: 00007f6e7aa1d158 R14: 00007f6e7aa1f160 R15: 00007f6e7aa544c8 [ 718.009632] [ 718.009632] Showing all locks held in the system: [ 718.015954] 1 lock held by khungtaskd/1570: [ 718.020304] #0: 000000005ae10405 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.029051] 1 lock held by in:imklog/7804: [ 718.033357] #0: 00000000596966cd (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.041379] 2 locks held by syz-executor222/8094: [ 718.046209] #0: 0000000035fafd92 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 718.054258] #1: 000000007ddb17c8 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 718.063871] [ 718.065489] ============================================= [ 718.065489] [ 718.072846] NMI backtrace for cpu 1 [ 718.076555] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.083993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.093329] Call Trace: [ 718.095907] dump_stack+0x1fc/0x2ef [ 718.099520] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.104000] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.108512] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.113772] watchdog+0x991/0xe60 [ 718.117211] ? reset_hung_task_detector+0x30/0x30 [ 718.122038] kthread+0x33f/0x460 [ 718.125385] ? kthread_park+0x180/0x180 [ 718.129340] ret_from_fork+0x24/0x30 [ 718.133121] Sending NMI from CPU 1 to CPUs 0: [ 718.138115] NMI backtrace for cpu 0 [ 718.138122] CPU: 0 PID: 4694 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.138128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.138132] RIP: 0010:lock_release+0x530/0x8b0 [ 718.138142] Code: 90 b6 7e 0f 85 49 fc ff ff e8 2e ee b4 ff e9 3f fc ff ff 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 08 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 16 03 00 00 45 8d 4f ff 45 39 8e 80 08 00 [ 718.138146] RSP: 0018:ffff8880a088fb20 EFLAGS: 00000802 [ 718.138154] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 1ffff110141105d1 [ 718.138159] RDX: 1ffff110141105d0 RSI: 0000000000000001 RDI: ffff8880a0882600 [ 718.138164] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 718.138169] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11014111f67 [ 718.138174] R13: 0000000000000000 R14: ffff8880a0882600 R15: 0000000000000001 [ 718.138180] FS: 00007fe5e18928c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.138184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.138189] CR2: 00007fe5dec63000 CR3: 00000000a12c3000 CR4: 00000000003406f0 [ 718.138194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.138199] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.138202] Call Trace: [ 718.138205] ? lock_downgrade+0x720/0x720 [ 718.138209] ? lock_acquire+0x170/0x3c0 [ 718.138212] ? debug_check_no_obj_freed+0xb5/0x490 [ 718.138216] _raw_spin_unlock_irqrestore+0x1b/0xe0 [ 718.138220] debug_check_no_obj_freed+0x201/0x490 [ 718.138223] kmem_cache_free+0xff/0x260 [ 718.138226] putname+0xe1/0x120 [ 718.138230] filename_lookup+0x3d0/0x5a0 [ 718.138233] ? filename_parentat+0x590/0x590 [ 718.138237] ? __phys_addr_symbol+0x2c/0x70 [ 718.138241] ? __check_object_size+0x17b/0x3e0 [ 718.138244] ? getname_flags+0x25b/0x590 [ 718.138247] do_faccessat+0x248/0x7a0 [ 718.138251] ? __ia32_sys_fallocate+0x140/0x140 [ 718.138255] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.138258] ? do_syscall_64+0x21/0x620 [ 718.138262] do_syscall_64+0xf9/0x620 [ 718.138266] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.138269] RIP: 0033:0x7fe5e0b4d9c7 [ 718.138279] Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 [ 718.138283] RSP: 002b:00007ffc95911928 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 718.138292] RAX: ffffffffffffffda RBX: 00007ffc95914840 RCX: 00007fe5e0b4d9c7 [ 718.138297] RDX: 00007fe5e15bea00 RSI: 0000000000000000 RDI: 00005560beeec9a3 [ 718.138301] RBP: 00007ffc95911960 R08: 0000000000000000 R09: 0000000000000000 [ 718.138306] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 718.138311] R13: 0000000000000000 R14: 00007ffc95914840 R15: 00007ffc95911e50 [ 718.138664] Kernel panic - not syncing: hung_task: blocked tasks [ 718.413369] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.420792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.430129] Call Trace: [ 718.432707] dump_stack+0x1fc/0x2ef [ 718.436345] panic+0x26a/0x50e [ 718.439691] ? __warn_printk+0xf3/0xf3 [ 718.443561] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.448646] ? cpumask_next+0x3c/0x40 [ 718.452426] ? printk_safe_flush+0xd6/0x120 [ 718.456734] ? watchdog+0x991/0xe60 [ 718.460341] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.465776] watchdog+0x9a2/0xe60 [ 718.469215] ? reset_hung_task_detector+0x30/0x30 [ 718.474037] kthread+0x33f/0x460 [ 718.477384] ? kthread_park+0x180/0x180 [ 718.481362] ret_from_fork+0x24/0x30 [ 718.485358] Kernel Offset: disabled [ 718.488981] Rebooting in 86400 seconds..