Warning: Permanently added '10.128.1.55' (ECDSA) to the list of known hosts. executing program [ 717.798855] INFO: task syz-executor204:8098 blocked for more than 140 seconds. [ 717.806417] Not tainted 4.19.211-syzkaller #0 [ 717.811738] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.819781] syz-executor204 D28248 8098 8093 0x00000004 [ 717.825427] Call Trace: [ 717.828017] __schedule+0x887/0x2040 [ 717.831815] ? io_schedule_timeout+0x140/0x140 [ 717.836414] ? _raw_spin_unlock+0x29/0x40 [ 717.840624] schedule+0x8d/0x1b0 [ 717.844015] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.849812] ? fuse_do_ioctl+0x1850/0x1850 [ 717.854056] ? wait_woken+0x250/0x250 [ 717.857844] ? fuse_writepage_locked+0xb63/0x1010 [ 717.862871] ? fuse_writepage_locked+0x1010/0x1010 [ 717.867812] fuse_launder_page+0xb6/0xe0 [ 717.872073] invalidate_inode_pages2_range+0x795/0x1110 [ 717.877441] ? clear_shadow_entry+0x170/0x170 [ 717.882002] ? fuse_file_alloc+0x1d9/0x270 [ 717.886242] ? do_raw_spin_unlock+0x171/0x230 [ 717.890789] ? _raw_spin_unlock+0x29/0x40 [ 717.894951] ? fuse_do_open+0x1c4/0x500 [ 717.898990] fuse_finish_open+0x2e2/0x590 [ 717.903151] fuse_open_common+0x254/0x2c0 [ 717.907295] do_dentry_open+0x4aa/0x1160 [ 717.911422] ? fuse_open_common+0x2c0/0x2c0 [ 717.915756] ? inode_permission.part.0+0x10c/0x450 [ 717.920746] ? chown_common+0x550/0x550 [ 717.924731] ? inode_permission+0x3d/0x140 [ 717.929038] path_openat+0x793/0x2df0 [ 717.932856] ? path_lookupat+0x8d0/0x8d0 [ 717.936909] ? mark_held_locks+0xf0/0xf0 [ 717.941036] do_filp_open+0x18c/0x3f0 [ 717.944845] ? may_open_dev+0xf0/0xf0 [ 717.948724] ? lock_downgrade+0x720/0x720 [ 717.952877] ? lock_acquire+0x170/0x3c0 [ 717.956838] ? __alloc_fd+0x34/0x570 [ 717.960605] ? do_raw_spin_unlock+0x171/0x230 [ 717.965102] ? _raw_spin_unlock+0x29/0x40 [ 717.969300] ? __alloc_fd+0x28d/0x570 [ 717.973104] do_sys_open+0x3b3/0x520 [ 717.976803] ? filp_open+0x70/0x70 [ 717.980386] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.985750] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.990819] ? do_syscall_64+0x21/0x620 [ 717.994809] do_syscall_64+0xf9/0x620 [ 717.998689] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.003880] RIP: 0033:0x7f925a70c4c9 [ 718.007589] Code: Bad RIP value. [ 718.011021] RSP: 002b:00007f925a69c2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 718.018819] RAX: ffffffffffffffda RBX: 00007f925a79d4d0 RCX: 00007f925a70c4c9 [ 718.026090] RDX: 00007f925a70c4c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 718.033427] RBP: 00007f925a76a164 R08: 0000000000000000 R09: 0000000000000000 [ 718.040773] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 718.048045] R13: 00007f925a766158 R14: 00007f925a768160 R15: 00007f925a79d4d8 [ 718.055395] [ 718.055395] Showing all locks held in the system: [ 718.061796] 1 lock held by khungtaskd/1570: [ 718.066125] #0: 000000003187356a (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.074786] 1 lock held by in:imklog/7798: [ 718.079185] #0: 000000009dcca52a (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.087154] 2 locks held by syz-executor204/8098: [ 718.092046] #0: 00000000a0170fdd (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 718.100099] #1: 000000001e6061dd (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 718.109728] [ 718.111354] ============================================= [ 718.111354] [ 718.118359] NMI backtrace for cpu 0 [ 718.122087] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.129541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.138887] Call Trace: [ 718.141471] dump_stack+0x1fc/0x2ef [ 718.145094] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.149583] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.154073] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.159462] watchdog+0x991/0xe60 [ 718.162911] ? reset_hung_task_detector+0x30/0x30 [ 718.167758] kthread+0x33f/0x460 [ 718.171113] ? kthread_park+0x180/0x180 [ 718.175073] ret_from_fork+0x24/0x30 [ 718.178865] Sending NMI from CPU 0 to CPUs 1: [ 718.183940] NMI backtrace for cpu 1 [ 718.183947] CPU: 1 PID: 4690 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.183953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.183957] RIP: 0010:__lock_acquire+0x545/0x3ff0 [ 718.183967] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 a8 09 00 00 49 8d 6a 22 41 0f b6 5a 21 <48> b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 0f b6 04 02 48 [ 718.183971] RSP: 0018:ffff8880a0d8f870 EFLAGS: 00000046 [ 718.183979] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 718.183984] RDX: 0000000000000001 RSI: 1ffff110141b09b5 RDI: ffff8880a0d84dd1 [ 718.183989] RBP: ffff8880a0d84dd2 R08: 00000000000000c0 R09: 0000000000000001 [ 718.183994] R10: ffff8880a0d84db0 R11: 0000000000000000 R12: 00000000000e00c0 [ 718.183998] R13: ffff8880a0d84500 R14: ffff8880a0d84dc8 R15: 0000000000000001 [ 718.184004] FS: 00007f3bcd7c38c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 718.184008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.184013] CR2: 00007f3bcab94018 CR3: 00000000a0dce000 CR4: 00000000003406e0 [ 718.184018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.184023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.184026] Call Trace: [ 718.184029] ? trace_hardirqs_off+0x64/0x200 [ 718.184033] ? __lock_acquire+0x6de/0x3ff0 [ 718.184036] ? mark_held_locks+0xf0/0xf0 [ 718.184041] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 718.184044] ? deref_stack_reg+0x1d0/0x1d0 [ 718.184047] ? get_reg+0x176/0x1f0 [ 718.184051] ? mark_held_locks+0xf0/0xf0 [ 718.184060] ? is_bpf_text_address+0xd5/0x1b0 [ 718.184064] ? lock_downgrade+0x720/0x720 [ 718.184067] ? lock_acquire+0x170/0x3c0 [ 718.184071] ? __bpf_address_lookup+0x330/0x330 [ 718.184074] lock_acquire+0x170/0x3c0 [ 718.184078] ? path_init+0x1057/0x19d0 [ 718.184081] set_root+0x136/0x5f0 [ 718.184084] ? path_init+0x1057/0x19d0 [ 718.184088] ? path_lookupat+0x97/0x8d0 [ 718.184091] path_init+0x1057/0x19d0 [ 718.184094] ? kasan_kmalloc+0x139/0x160 [ 718.184098] path_lookupat+0x97/0x8d0 [ 718.184101] ? prepare_creds+0x39/0x510 [ 718.184104] ? do_faccessat+0x94/0x7a0 [ 718.184108] ? path_mountpoint+0xac0/0xac0 [ 718.184111] ? __lock_acquire+0x6de/0x3ff0 [ 718.184115] ? mark_held_locks+0xf0/0xf0 [ 718.184118] filename_lookup+0x1ac/0x5a0 [ 718.184122] ? filename_parentat+0x590/0x590 [ 718.184125] ? __phys_addr_symbol+0x2c/0x70 [ 718.184129] ? __check_object_size+0x17b/0x3e0 [ 718.184132] ? getname_flags+0x25b/0x590 [ 718.184136] do_faccessat+0x248/0x7a0 [ 718.184144] ? __ia32_sys_fallocate+0x140/0x140 [ 718.184148] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.184152] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.184155] ? do_syscall_64+0x21/0x620 [ 718.184158] do_syscall_64+0xf9/0x620 [ 718.184162] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.184165] RIP: 0033:0x7f3bcca7e9c7 [ 718.184176] 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 [ 718.184180] RSP: 002b:00007fff5da66d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 718.184189] RAX: ffffffffffffffda RBX: 00007fff5da69d90 RCX: 00007f3bcca7e9c7 [ 718.184194] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055f2407759a3 [ 718.184199] RBP: 00007fff5da66eb0 R08: 000055f24076b3e5 R09: 0000000000000018 [ 718.184204] R10: 00007f3bccd3cb68 R11: 0000000000000246 R12: 0000000000000000 [ 718.184209] R13: 0000000000000000 R14: 000055f241b728a0 R15: 00007fff5da673a0 [ 718.184370] Kernel panic - not syncing: hung_task: blocked tasks [ 718.532513] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.539945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.549304] Call Trace: [ 718.551888] dump_stack+0x1fc/0x2ef [ 718.555501] panic+0x26a/0x50e [ 718.558674] ? __warn_printk+0xf3/0xf3 [ 718.562541] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.567630] ? cpumask_next+0x3c/0x40 [ 718.571412] ? printk_safe_flush+0xd6/0x120 [ 718.575714] ? watchdog+0x991/0xe60 [ 718.579326] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.584760] watchdog+0x9a2/0xe60 [ 718.588196] ? reset_hung_task_detector+0x30/0x30 [ 718.593026] kthread+0x33f/0x460 [ 718.596379] ? kthread_park+0x180/0x180 [ 718.600342] ret_from_fork+0x24/0x30 [ 718.604344] Kernel Offset: disabled [ 718.607966] Rebooting in 86400 seconds..