Warning: Permanently added '10.128.1.96' (ECDSA) to the list of known hosts. executing program [ 717.683425] INFO: task syz-executor218:8100 blocked for more than 140 seconds. [ 717.691068] Not tainted 4.19.211-syzkaller #0 [ 717.697854] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.706183] syz-executor218 D27400 8100 8098 0x00000004 [ 717.712322] Call Trace: [ 717.715317] __schedule+0x887/0x2040 [ 717.719431] ? io_schedule_timeout+0x140/0x140 [ 717.724584] ? _raw_spin_unlock+0x29/0x40 [ 717.730421] schedule+0x8d/0x1b0 [ 717.734177] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.739908] ? fuse_do_ioctl+0x1850/0x1850 [ 717.744546] ? wait_woken+0x250/0x250 [ 717.748935] ? fuse_writepage_locked+0xb63/0x1010 [ 717.754185] ? fuse_writepage_locked+0x1010/0x1010 [ 717.759120] fuse_launder_page+0xb6/0xe0 [ 717.763196] invalidate_inode_pages2_range+0x795/0x1110 [ 717.769074] ? clear_shadow_entry+0x170/0x170 [ 717.773861] ? fuse_file_alloc+0x1d9/0x270 [ 717.778093] ? do_raw_spin_unlock+0x171/0x230 [ 717.782583] ? _raw_spin_unlock+0x29/0x40 [ 717.787242] ? fuse_do_open+0x1c4/0x500 [ 717.791236] fuse_finish_open+0x2e2/0x590 [ 717.795895] fuse_open_common+0x254/0x2c0 [ 717.800058] do_dentry_open+0x4aa/0x1160 [ 717.804453] ? fuse_open_common+0x2c0/0x2c0 [ 717.808804] ? inode_permission.part.0+0x10c/0x450 [ 717.814093] ? chown_common+0x550/0x550 [ 717.818073] ? inode_permission+0x3d/0x140 [ 717.822294] path_openat+0x793/0x2df0 [ 717.826454] ? path_lookupat+0x8d0/0x8d0 [ 717.830535] ? mark_held_locks+0xf0/0xf0 [ 717.834913] ? mark_held_locks+0xf0/0xf0 [ 717.838988] do_filp_open+0x18c/0x3f0 [ 717.842770] ? may_open_dev+0xf0/0xf0 [ 717.847236] ? lock_downgrade+0x720/0x720 [ 717.851533] ? lock_acquire+0x170/0x3c0 [ 717.856629] ? __alloc_fd+0x34/0x570 [ 717.860363] ? do_raw_spin_unlock+0x171/0x230 [ 717.865239] ? _raw_spin_unlock+0x29/0x40 [ 717.869503] ? __alloc_fd+0x28d/0x570 [ 717.873597] do_sys_open+0x3b3/0x520 [ 717.877328] ? filp_open+0x70/0x70 [ 717.880855] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.886295] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.891319] ? do_syscall_64+0x21/0x620 [ 717.895561] do_syscall_64+0xf9/0x620 [ 717.899394] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.904655] RIP: 0033:0x7fe6697f04c9 [ 717.908382] Code: Bad RIP value. [ 717.911824] RSP: 002b:00007fe6697a12f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 717.919593] RAX: ffffffffffffffda RBX: 00007fe6698814c0 RCX: 00007fe6697f04c9 [ 717.927031] RDX: 0000000000000000 RSI: 0000000000003f00 RDI: 0000000020000080 [ 717.934366] RBP: 00007fe66984e164 R08: 0000000000000000 R09: 0000000000000000 [ 717.941850] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.949227] R13: 00007fe66984a158 R14: 00007fe66984c160 R15: 00007fe6698814c8 [ 717.956684] [ 717.956684] Showing all locks held in the system: [ 717.963016] 1 lock held by khungtaskd/1571: [ 717.967706] #0: 0000000030baac48 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.976615] 1 lock held by in:imklog/7798: [ 717.980927] #0: 00000000d991cd7b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 717.988997] 2 locks held by syz-executor218/8100: [ 717.993904] #0: 00000000206601e4 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 718.001901] #1: 000000003ae3db6b (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 718.011785] [ 718.013482] ============================================= [ 718.013482] [ 718.020526] NMI backtrace for cpu 1 [ 718.024257] CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.031697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.041055] Call Trace: [ 718.043637] dump_stack+0x1fc/0x2ef [ 718.047425] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.052081] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.056655] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.061940] watchdog+0x991/0xe60 [ 718.065389] ? reset_hung_task_detector+0x30/0x30 [ 718.070230] kthread+0x33f/0x460 [ 718.073575] ? kthread_park+0x180/0x180 [ 718.077542] ret_from_fork+0x24/0x30 [ 718.081365] Sending NMI from CPU 1 to CPUs 0: [ 718.086067] NMI backtrace for cpu 0 [ 718.086074] CPU: 0 PID: 4696 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.086080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.086083] RIP: 0033:0x7fa832e35369 [ 718.086094] Code: 8b 04 24 48 89 83 d0 00 00 00 31 c0 e9 75 ff ff ff e8 db 7b f1 ff 90 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 55 <53> 48 83 ec 18 64 48 8b 04 25 28 00 00 00 48 89 44 24 08 31 c0 48 [ 718.086098] RSP: 002b:00007ffd6fff5580 EFLAGS: 00000202 [ 718.086106] RAX: 00000000000000ea RBX: 000000000000063a RCX: 00007ffd6fff55d8 [ 718.086111] RDX: 0000000000160a80 RSI: 0000000000000006 RDI: 000055f8c1142e80 [ 718.086116] RBP: 0000000000160a80 R08: 000000000013e650 R09: 000055f8c1143120 [ 718.086121] R10: 00040221eecfe8c0 R11: 00007fa830518618 R12: 000055f8c1142e80 [ 718.086125] R13: 00007ffd6fff55d8 R14: 00007ffd6fff5670 R15: 00007fa830403ee8 [ 718.086129] FS: 00007fa8331478c0 GS: 0000000000000000 [ 718.086920] Kernel panic - not syncing: hung_task: blocked tasks [ 718.184936] CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.192384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 718.201956] Call Trace: [ 718.204548] dump_stack+0x1fc/0x2ef [ 718.208170] panic+0x26a/0x50e [ 718.211377] ? __warn_printk+0xf3/0xf3 [ 718.215462] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.221013] ? cpumask_next+0x3c/0x40 [ 718.224822] ? printk_safe_flush+0xd6/0x120 [ 718.229648] ? watchdog+0x991/0xe60 [ 718.233285] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.238902] watchdog+0x9a2/0xe60 [ 718.242370] ? reset_hung_task_detector+0x30/0x30 [ 718.247203] kthread+0x33f/0x460 [ 718.250553] ? kthread_park+0x180/0x180 [ 718.254512] ret_from_fork+0x24/0x30 [ 718.258507] Kernel Offset: disabled [ 718.262151] Rebooting in 86400 seconds..