Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. executing program [ 717.696264] INFO: task syz-executor871:8121 blocked for more than 140 seconds. [ 717.703941] Not tainted 4.19.211-syzkaller #0 [ 717.710712] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.719239] syz-executor871 D27504 8121 8119 0x00000004 [ 717.724970] Call Trace: [ 717.728364] __schedule+0x887/0x2040 [ 717.732087] ? io_schedule_timeout+0x140/0x140 [ 717.737402] ? _raw_spin_unlock+0x29/0x40 [ 717.741551] schedule+0x8d/0x1b0 [ 717.745102] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 717.751826] ? fuse_do_ioctl+0x1850/0x1850 [ 717.757340] ? wait_woken+0x250/0x250 [ 717.761149] ? fuse_writepage_locked+0xb63/0x1010 [ 717.766011] ? fuse_writepage_locked+0x1010/0x1010 [ 717.771845] fuse_launder_page+0xb6/0xe0 [ 717.776663] invalidate_inode_pages2_range+0x795/0x1110 [ 717.782139] ? clear_shadow_entry+0x170/0x170 [ 717.787519] ? fuse_file_alloc+0x1d9/0x270 [ 717.791800] ? do_raw_spin_unlock+0x171/0x230 [ 717.798252] ? _raw_spin_unlock+0x29/0x40 [ 717.802535] ? fuse_do_open+0x1c4/0x500 [ 717.807307] fuse_finish_open+0x2e2/0x590 [ 717.811584] fuse_open_common+0x254/0x2c0 [ 717.817010] do_dentry_open+0x4aa/0x1160 [ 717.821096] ? fuse_open_common+0x2c0/0x2c0 [ 717.825447] ? inode_permission.part.0+0x10c/0x450 [ 717.831353] ? chown_common+0x550/0x550 [ 717.835423] ? inode_permission+0x3d/0x140 [ 717.840415] path_openat+0x793/0x2df0 [ 717.844222] ? path_lookupat+0x8d0/0x8d0 [ 717.849056] ? mark_held_locks+0xf0/0xf0 [ 717.853389] ? mark_held_locks+0xf0/0xf0 [ 717.858257] do_filp_open+0x18c/0x3f0 [ 717.862081] ? may_open_dev+0xf0/0xf0 [ 717.865874] ? lock_downgrade+0x720/0x720 [ 717.870895] ? lock_acquire+0x170/0x3c0 [ 717.874870] ? __alloc_fd+0x34/0x570 [ 717.879252] ? do_raw_spin_unlock+0x171/0x230 [ 717.883766] ? _raw_spin_unlock+0x29/0x40 [ 717.888550] ? __alloc_fd+0x28d/0x570 [ 717.892544] do_sys_open+0x3b3/0x520 [ 717.897000] ? filp_open+0x70/0x70 [ 717.900552] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.905915] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.911863] ? do_syscall_64+0x21/0x620 [ 717.915847] do_syscall_64+0xf9/0x620 [ 717.920386] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.925575] RIP: 0033:0x7f235c0c64c9 [ 717.930077] Code: Bad RIP value. [ 717.933464] RSP: 002b:00007f235c0772f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 717.941961] RAX: ffffffffffffffda RBX: 00007f235c1574c0 RCX: 00007f235c0c64c9 [ 717.949930] RDX: 00007f235c0c64c9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 717.957812] RBP: 00007f235c124164 R08: 0000000000000000 R09: 0000000000000000 [ 717.965081] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 717.973165] R13: 00007f235c120158 R14: 00007f235c122160 R15: 00007f235c1574c8 [ 717.981013] [ 717.981013] Showing all locks held in the system: [ 717.987868] 1 lock held by khungtaskd/1559: [ 717.992195] #0: 00000000da8d2d3a (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.002391] 1 lock held by in:imklog/7777: [ 718.007143] #0: 00000000e121ca08 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.015126] 2 locks held by syz-executor871/8121: [ 718.021245] #0: 000000009ea3a631 (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 718.029697] #1: 00000000ada9d1a3 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 718.039788] [ 718.041418] ============================================= [ 718.041418] [ 718.049275] NMI backtrace for cpu 0 [ 718.052919] CPU: 0 PID: 1559 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.060344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.069678] Call Trace: [ 718.072255] dump_stack+0x1fc/0x2ef [ 718.075864] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.080343] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.084827] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.090088] watchdog+0x991/0xe60 [ 718.093676] ? reset_hung_task_detector+0x30/0x30 [ 718.098515] kthread+0x33f/0x460 [ 718.101883] ? kthread_park+0x180/0x180 [ 718.105840] ret_from_fork+0x24/0x30 [ 718.109782] Sending NMI from CPU 0 to CPUs 1: [ 718.114814] NMI backtrace for cpu 1 [ 718.114820] CPU: 1 PID: 4694 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.114827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.114831] RIP: 0010:unwind_next_frame+0x24a/0x1400 [ 718.114841] Code: 8d 43 ff 39 c6 0f 83 06 0e 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 bc 91 17 8c 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 27 84 c9 74 23 48 89 54 24 30 [ 718.114845] RSP: 0018:ffff8880a0817908 EFLAGS: 00000a06 [ 718.114853] RAX: dffffc0000000000 RBX: 1ffff11014102f2a RCX: 0000000000000000 [ 718.114858] RDX: 00000000000022ef RSI: 00000000000022ef RDI: ffffffff8c181d78 [ 718.114863] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 [ 718.114867] R10: ffff8880a0817b4f R11: 0000000000074071 R12: ffff8880a0817b38 [ 718.114872] R13: ffff8880a0817b25 R14: ffff8880a0817af0 R15: ffffffff8122efe1 [ 718.114878] FS: 00007f7bafb1f8c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 718.114882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.114887] CR2: 00007f7bacef0020 CR3: 00000000a1710000 CR4: 00000000003406e0 [ 718.114892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.114897] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.114900] Call Trace: [ 718.114903] ? __save_stack_trace+0x72/0x190 [ 718.114908] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 718.114911] ? deref_stack_reg+0x1d0/0x1d0 [ 718.114915] ? kmem_cache_free+0x7f/0x260 [ 718.114918] ? is_bpf_text_address+0xd5/0x1b0 [ 718.114922] __unwind_start+0x5b8/0x960 [ 718.114925] ? unwind_next_frame+0x1400/0x1400 [ 718.114929] ? is_bpf_text_address+0xfc/0x1b0 [ 718.114933] ? kernel_text_address+0xbd/0xf0 [ 718.114936] __save_stack_trace+0x72/0x190 [ 718.114940] ? __lock_acquire+0x6de/0x3ff0 [ 718.114943] ? __save_stack_trace+0x72/0x190 [ 718.114947] kasan_kmalloc+0xeb/0x160 [ 718.114950] ? kmem_cache_alloc+0x110/0x370 [ 718.114954] ? getname_flags+0xce/0x590 [ 718.114957] ? do_sys_open+0x26c/0x520 [ 718.114960] ? do_syscall_64+0xf9/0x620 [ 718.114964] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.114968] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 718.114972] ? __put_seccomp_filter+0xa0/0xa0 [ 718.114975] ? cache_alloc_refill+0x2f8/0x340 [ 718.114979] ? lock_downgrade+0x720/0x720 [ 718.114982] ? do_raw_spin_lock+0xcb/0x220 [ 718.114986] ? do_raw_spin_unlock+0x171/0x230 [ 718.114989] ? _raw_spin_unlock+0x29/0x40 [ 718.114993] ? cache_alloc_refill+0x2f8/0x340 [ 718.114997] ? kmem_cache_alloc+0x2b1/0x370 [ 718.115000] kmem_cache_alloc+0x122/0x370 [ 718.115004] getname_flags+0xce/0x590 [ 718.115007] do_sys_open+0x26c/0x520 [ 718.115010] ? filp_open+0x70/0x70 [ 718.115014] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.115018] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.115021] ? do_syscall_64+0x21/0x620 [ 718.115025] do_syscall_64+0xf9/0x620 [ 718.115029] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.115032] RIP: 0033:0x7f7baf0ae840 [ 718.115042] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 718.115046] RSP: 002b:00007fffe29f0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 718.115055] RAX: ffffffffffffffda RBX: 00007fffe29f0470 RCX: 00007f7baf0ae840 [ 718.115060] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 00005578586f3d50 [ 718.115065] RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff [ 718.115070] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 718.115075] R13: 00005578586e7040 R14: 00007fffe29f0430 R15: 00005578586f2280 [ 718.116316] Kernel panic - not syncing: hung_task: blocked tasks [ 718.471484] CPU: 0 PID: 1559 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.479020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 718.488700] Call Trace: [ 718.491280] dump_stack+0x1fc/0x2ef [ 718.494891] panic+0x26a/0x50e [ 718.498068] ? __warn_printk+0xf3/0xf3 [ 718.501986] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.506462] ? ___preempt_schedule+0x16/0x18 [ 718.510854] ? watchdog+0x991/0xe60 [ 718.514465] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.519993] watchdog+0x9a2/0xe60 [ 718.523431] ? reset_hung_task_detector+0x30/0x30 [ 718.528348] kthread+0x33f/0x460 [ 718.531697] ? kthread_park+0x180/0x180 [ 718.535654] ret_from_fork+0x24/0x30 [ 718.539545] Kernel Offset: disabled [ 718.543166] Rebooting in 86400 seconds..