Warning: Permanently added '10.128.1.67' (ECDSA) to the list of known hosts. [ 1001.327155] INFO: task syz-executor282:7986 blocked for more than 140 seconds. [ 1001.334572] Not tainted 4.14.304-syzkaller #0 [ 1001.341004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.349408] syz-executor282 D28104 7986 7981 0x00000004 [ 1001.355031] Call Trace: [ 1001.358207] __schedule+0x88b/0x1de0 [ 1001.361915] ? lock_acquire+0x170/0x3f0 [ 1001.365869] ? io_schedule_timeout+0x140/0x140 [ 1001.371218] ? _raw_spin_unlock+0x29/0x40 [ 1001.375356] ? fuse_writepage_locked+0xe80/0xe80 [ 1001.380733] schedule+0x8d/0x1b0 [ 1001.384087] fuse_wait_on_page_writeback.isra.0+0xdc/0x120 [ 1001.390263] ? fuse_do_ioctl+0x1570/0x1570 [ 1001.394487] ? end_page_writeback+0xe3/0x1c0 [ 1001.399448] ? wait_woken+0x230/0x230 [ 1001.403242] fuse_launder_page+0xa2/0xd0 [ 1001.407848] invalidate_inode_pages2_range+0x547/0xc00 [ 1001.413113] ? clear_shadow_entry+0x160/0x160 [ 1001.418145] ? fuse_range_is_writeback+0x1f0/0x1f0 [ 1001.423088] ? fuse_file_alloc+0x1ca/0x260 [ 1001.427858] ? _raw_spin_unlock+0x29/0x40 [ 1001.431992] ? fuse_do_open+0x18e/0x460 [ 1001.435943] fuse_finish_open+0x262/0x500 [ 1001.441487] fuse_open_common+0x234/0x290 [ 1001.445625] do_dentry_open+0x44b/0xec0 [ 1001.450104] ? fuse_open_common+0x290/0x290 [ 1001.454412] ? __inode_permission+0xcd/0x2f0 [ 1001.459358] vfs_open+0x105/0x220 [ 1001.462802] path_openat+0x628/0x2970 [ 1001.466580] ? path_lookupat+0x780/0x780 [ 1001.471401] ? trace_hardirqs_on+0x10/0x10 [ 1001.475622] do_filp_open+0x179/0x3c0 [ 1001.479967] ? may_open_dev+0xe0/0xe0 [ 1001.483780] ? lock_downgrade+0x740/0x740 [ 1001.488553] ? do_raw_spin_unlock+0x164/0x220 [ 1001.493057] ? _raw_spin_unlock+0x29/0x40 [ 1001.497731] ? __alloc_fd+0x1be/0x490 [ 1001.501519] do_sys_open+0x296/0x410 [ 1001.505208] ? filp_open+0x60/0x60 [ 1001.509500] ? do_syscall_64+0x4c/0x640 [ 1001.513466] ? compat_SyS_openat+0x30/0x30 [ 1001.518257] do_syscall_64+0x1d5/0x640 [ 1001.522152] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 1001.527903] RIP: 0033:0x7f9b40bc84b9 [ 1001.531597] RSP: 002b:00007f9b40b582f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 1001.539971] RAX: ffffffffffffffda RBX: 00007f9b40c594d0 RCX: 00007f9b40bc84b9 [ 1001.547577] RDX: 00007f9b40bc84b9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 1001.554831] RBP: 00007f9b40c26154 R08: 0000000000000000 R09: 0000000000000000 [ 1001.562624] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 1001.570227] R13: 00007f9b40c22148 R14: 00007f9b40c24150 R15: 00007f9b40c594d8 [ 1001.577841] [ 1001.577841] Showing all locks held in the system: [ 1001.584177] 1 lock held by khungtaskd/1533: [ 1001.588583] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1001.597685] 1 lock held by in:imklog/7662: [ 1001.601895] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0x1fb/0x2b0 [ 1001.610388] 2 locks held by syz-executor282/7986: [ 1001.615213] #0: (sb_writers#10){.+.+}, at: [] mnt_want_write+0x3a/0xb0 [ 1001.623664] #1: (&sb->s_type->i_mutex_key#17){+.+.}, at: [] fuse_open_common+0x1a4/0x290 [ 1001.633749] [ 1001.635355] ============================================= [ 1001.635355] [ 1001.642844] NMI backtrace for cpu 0 [ 1001.646467] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.304-syzkaller #0 [ 1001.653905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 1001.663234] Call Trace: [ 1001.665800] dump_stack+0x1b2/0x281 [ 1001.669408] nmi_cpu_backtrace.cold+0x57/0x93 [ 1001.673909] ? irq_force_complete_move+0x350/0x350 [ 1001.678833] nmi_trigger_cpumask_backtrace+0x13a/0x180 [ 1001.684088] watchdog+0x5b9/0xb40 [ 1001.687521] ? hungtask_pm_notify+0x50/0x50 [ 1001.691817] kthread+0x30d/0x420 [ 1001.695156] ? kthread_create_on_node+0xd0/0xd0 [ 1001.699801] ret_from_fork+0x24/0x30 [ 1001.703566] Sending NMI from CPU 0 to CPUs 1: [ 1001.708341] NMI backtrace for cpu 1 [ 1001.708345] CPU: 1 PID: 4626 Comm: systemd-journal Not tainted 4.14.304-syzkaller #0 [ 1001.708349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 1001.708352] task: ffff8880a12661c0 task.stack: ffff8880a1268000 [ 1001.708354] RIP: 0010:lock_release+0x5b7/0x870 [ 1001.708356] RSP: 0018:ffff8880a126fe40 EFLAGS: 00000046 [ 1001.708361] RAX: 0000000000000000 RBX: 1ffff1101424dfcb RCX: 0000000000000001 [ 1001.708364] RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffff8880a1266a44 [ 1001.708367] RBP: ffffffff88f785c0 R08: 0000000000000000 R09: 0000000000020011 [ 1001.708370] R10: 0000000000000000 R11: ffff8880a12661c0 R12: ffffffff8136fbb3 [ 1001.708373] R13: ffff8880a12661c0 R14: ffff8880a12661c0 R15: 0000000000000000 [ 1001.708376] FS: 00007fd2be8828c0(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 1001.708379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1001.708382] CR2: 00007fd2bbc50018 CR3: 00000000a11df000 CR4: 00000000003406e0 [ 1001.708385] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1001.708388] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1001.708389] Call Trace: [ 1001.708391] ? lock_acquire+0x170/0x3f0 [ 1001.708393] ? lock_downgrade+0x740/0x740 [ 1001.708396] ? check_preemption_disabled+0x35/0x240 [ 1001.708398] __task_pid_nr_ns+0x1ea/0x440 [ 1001.708400] ? SyS_setfsgid+0x2f0/0x2f0 [ 1001.708402] sys_getpid+0x1a/0x20 [ 1001.708404] do_syscall_64+0x1d5/0x640 [ 1001.708406] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 1001.708408] RIP: 0033:0x7fd2bdb1af17 [ 1001.708411] RSP: 002b:00007ffea32b1058 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 [ 1001.708416] RAX: ffffffffffffffda RBX: 000055b4b221b1e0 RCX: 00007fd2bdb1af17 [ 1001.708419] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 000055b4b221b1e0 [ 1001.708422] RBP: 00007ffea32b1150 R08: 00007ffea32ee000 R09: 00000101f9001ab0 [ 1001.708425] R10: 0016981f3e83f6c8 R11: 0000000000000202 R12: 0000000000001212 [ 1001.708428] R13: 00007ffea32b11e8 R14: ffffffffffffffff R15: 0005f32be90ecdf8 [ 1001.708429] Code: ff ff e9 6b 23 c1 05 65 ff 05 f6 9a c0 7e 48 8b 05 27 b3 b1 08 e8 5a 4e 04 00 85 c0 74 0d 80 3d 08 63 b1 08 00 0f 84 47 01 00 00 <65> ff 0d d2 9a c0 7e 0f 85 a5 fb ff ff e8 83 37 be ff e9 9b fb [ 1001.709089] Kernel panic - not syncing: hung_task: blocked tasks [ 1001.926690] CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.304-syzkaller #0 [ 1001.934125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 1001.943453] Call Trace: [ 1001.946026] dump_stack+0x1b2/0x281 [ 1001.949628] panic+0x1f9/0x42d [ 1001.952820] ? add_taint.cold+0x16/0x16 [ 1001.956770] ? printk_safe_flush+0xa9/0x110 [ 1001.961070] watchdog+0x5ca/0xb40 [ 1001.964515] ? hungtask_pm_notify+0x50/0x50 [ 1001.968822] kthread+0x30d/0x420 [ 1001.972167] ? kthread_create_on_node+0xd0/0xd0 [ 1001.976814] ret_from_fork+0x24/0x30 [ 1001.980798] Kernel Offset: disabled [ 1001.984413] Rebooting in 86400 seconds..