Warning: Permanently added '10.128.0.70' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 717.592404] INFO: task syz-executor172:8120 blocked for more than 140 seconds. [ 717.599899] Not tainted 4.19.211-syzkaller #0 [ 717.606707] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.615095] syz-executor172 D27352 8120 8118 0x00000004 [ 717.620742] Call Trace: [ 717.623678] __schedule+0x887/0x2040 [ 717.627399] ? io_schedule_timeout+0x140/0x140 [ 717.631961] ? _raw_spin_unlock+0x29/0x40 [ 717.636564] schedule+0x8d/0x1b0 [ 717.639935] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.645979] ? fuse_do_ioctl+0x1850/0x1850 [ 717.650210] ? wait_woken+0x250/0x250 [ 717.654309] ? fuse_writepage_locked+0xb63/0x1010 [ 717.659149] ? fuse_writepage_locked+0x1010/0x1010 [ 717.664388] fuse_launder_page+0xb6/0xe0 [ 717.668448] invalidate_inode_pages2_range+0x795/0x1110 [ 717.674169] ? clear_shadow_entry+0x170/0x170 [ 717.678663] ? fuse_file_alloc+0x1d9/0x270 [ 717.683243] ? do_raw_spin_unlock+0x171/0x230 [ 717.687735] ? _raw_spin_unlock+0x29/0x40 [ 717.691866] ? fuse_do_open+0x1c4/0x500 [ 717.696404] fuse_finish_open+0x2e2/0x590 [ 717.700559] fuse_open_common+0x254/0x2c0 [ 717.705041] do_dentry_open+0x4aa/0x1160 [ 717.709102] ? fuse_open_common+0x2c0/0x2c0 [ 717.713796] ? inode_permission.part.0+0x10c/0x450 [ 717.718733] ? chown_common+0x550/0x550 [ 717.723018] ? inode_permission+0x3d/0x140 [ 717.727255] path_openat+0x793/0x2df0 [ 717.731038] ? path_lookupat+0x8d0/0x8d0 [ 717.735427] ? mark_held_locks+0xf0/0xf0 [ 717.739490] ? mark_held_locks+0xf0/0xf0 [ 717.743851] do_filp_open+0x18c/0x3f0 [ 717.747647] ? may_open_dev+0xf0/0xf0 [ 717.751435] ? lock_downgrade+0x720/0x720 [ 717.755922] ? lock_acquire+0x170/0x3c0 [ 717.759898] ? __alloc_fd+0x34/0x570 [ 717.763898] ? do_raw_spin_unlock+0x171/0x230 [ 717.768393] ? _raw_spin_unlock+0x29/0x40 [ 717.772856] ? __alloc_fd+0x28d/0x570 [ 717.776655] do_sys_open+0x3b3/0x520 [ 717.780349] ? filp_open+0x70/0x70 [ 717.784189] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.789548] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.794892] ? do_syscall_64+0x21/0x620 [ 717.798866] do_syscall_64+0xf9/0x620 [ 717.802968] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.808150] RIP: 0033:0x7fe2d96fe4c9 [ 717.811846] Code: Bad RIP value. [ 717.815533] RSP: 002b:00007fe2d96af2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 717.823442] RAX: ffffffffffffffda RBX: 00007fe2d978f4c0 RCX: 00007fe2d96fe4c9 [ 717.830697] RDX: 0000000000000000 RSI: 0000000000000300 RDI: 0000000020000100 [ 717.838254] RBP: 00007fe2d975c164 R08: 0000000000000000 R09: 0000000000000000 [ 717.845769] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.853300] R13: 00007fe2d9758158 R14: 00007fe2d975a160 R15: 00007fe2d978f4c8 [ 717.860681] [ 717.860681] Showing all locks held in the system: [ 717.867371] 1 lock held by khungtaskd/1570: [ 717.871772] #0: 00000000332d3b4a (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.880767] 1 lock held by in:imklog/7866: [ 717.885085] 2 locks held by syz-executor172/8120: [ 717.889917] #0: 000000006ebac583 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 717.897977] #1: 000000009176ce68 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 717.907613] [ 717.909230] ============================================= [ 717.909230] [ 717.916612] NMI backtrace for cpu 1 [ 717.920245] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 717.927677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.937016] Call Trace: [ 717.939592] dump_stack+0x1fc/0x2ef [ 717.943201] nmi_cpu_backtrace.cold+0x63/0xa2 [ 717.947679] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.952159] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 717.957423] watchdog+0x991/0xe60 [ 717.960858] ? reset_hung_task_detector+0x30/0x30 [ 717.965680] kthread+0x33f/0x460 [ 717.969053] ? kthread_park+0x180/0x180 [ 717.973009] ret_from_fork+0x24/0x30 [ 717.976820] Sending NMI from CPU 1 to CPUs 0: [ 717.981759] NMI backtrace for cpu 0 [ 717.981765] CPU: 0 PID: 4692 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 717.981778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.981782] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 [ 717.981793] Code: e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 [ 717.981797] RSP: 0018:ffff8880a0d5fa28 EFLAGS: 00000283 [ 717.981805] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff816c6963 [ 717.981810] RDX: 0000000000000027 RSI: ffffffff816c6975 RDI: 0000000000000006 [ 717.981814] RBP: ffff8880a0d5fb00 R08: 0000000000000000 R09: 0000000000000027 [ 717.981819] R10: 0000000000000006 R11: 0000000000000000 R12: ffffffff886fb460 [ 717.981824] R13: ffffed10141abf62 R14: ffffc90001ad40c0 R15: 00000000000000a4 [ 717.981830] FS: 00007fecdf3ad8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 717.981835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 717.981840] CR2: 00007fecdc77f000 CR3: 00000000a167d000 CR4: 00000000003406f0 [ 717.981845] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 717.981850] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 717.981853] Call Trace: [ 717.981856] ___bpf_prog_run+0x32d5/0x4e80 [ 717.981860] ? __bpf_prog_run32+0x8f/0xd0 [ 717.981863] ? __bpf_prog_run64+0xd0/0xd0 [ 717.981867] ? __mutex_unlock_slowpath+0xea/0x610 [ 717.981871] ? wait_for_completion_io+0x10/0x10 [ 717.981875] ? seccomp_run_filters+0x124/0x590 [ 717.981878] ? __put_seccomp_filter+0xa0/0xa0 [ 717.981883] ? __add_preferred_console.constprop.0+0x1a0/0x1a0 [ 717.981886] ? __seccomp_filter+0x93/0xca0 [ 717.981890] ? seccomp_send_sigsys+0x1c0/0x1c0 [ 717.981894] ? __se_sys_copy_file_range+0x410/0x410 [ 717.981897] ? fsnotify_first_mark+0x200/0x200 [ 717.981900] ? fsnotify+0x84e/0xe10 [ 717.981904] ? fsnotify_first_mark+0x200/0x200 [ 717.981908] ? security_file_permission+0x1c0/0x220 [ 717.981911] ? __secure_computing+0xfc/0x360 [ 717.981915] ? syscall_trace_enter+0x563/0xd60 [ 717.981919] ? syscall_slow_exit_work+0x630/0x630 [ 717.981923] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.981927] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.981930] ? do_syscall_64+0x21/0x620 [ 717.981934] ? do_syscall_64+0x486/0x620 [ 717.981938] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.982331] Kernel panic - not syncing: hung_task: blocked tasks [ 718.218785] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.226210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.235538] Call Trace: [ 718.238110] dump_stack+0x1fc/0x2ef [ 718.241720] panic+0x26a/0x50e [ 718.244892] ? __warn_printk+0xf3/0xf3 [ 718.248761] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.253846] ? cpumask_next+0x3c/0x40 [ 718.257626] ? printk_safe_flush+0xd6/0x120 [ 718.261935] ? watchdog+0x991/0xe60 [ 718.265540] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.270973] watchdog+0x9a2/0xe60 [ 718.274409] ? reset_hung_task_detector+0x30/0x30 [ 718.279229] kthread+0x33f/0x460 [ 718.282571] ? kthread_park+0x180/0x180 [ 718.286522] ret_from_fork+0x24/0x30 [ 718.290480] Kernel Offset: disabled [ 718.294092] Rebooting in 86400 seconds..