Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. executing program [ 640.195333] INFO: task syz-executor311:8120 blocked for more than 140 seconds. [ 640.202752] Not tainted 4.19.211-syzkaller #0 [ 640.209379] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 640.217654] syz-executor311 D26816 8120 8118 0x00000004 [ 640.223292] Call Trace: [ 640.226248] __schedule+0x887/0x2040 [ 640.229967] ? io_schedule_timeout+0x140/0x140 [ 640.234557] ? _raw_spin_unlock+0x29/0x40 [ 640.239123] schedule+0x8d/0x1b0 [ 640.242510] fuse_wait_on_page_writeback.isra.0+0x11b/0x170 [ 640.248725] ? fuse_do_ioctl+0x1850/0x1850 [ 640.252966] ? wait_woken+0x250/0x250 [ 640.257177] ? fuse_writepage_locked+0xb63/0x1010 [ 640.262027] ? fuse_writepage_locked+0x1010/0x1010 [ 640.267305] fuse_launder_page+0xb6/0xe0 [ 640.271378] invalidate_inode_pages2_range+0x795/0x1110 [ 640.277143] ? clear_shadow_entry+0x170/0x170 [ 640.281649] ? fuse_file_alloc+0x1d9/0x270 [ 640.286244] ? do_raw_spin_unlock+0x171/0x230 [ 640.290741] ? _raw_spin_unlock+0x29/0x40 [ 640.294876] ? fuse_do_open+0x1c4/0x500 [ 640.299355] fuse_finish_open+0x2e2/0x590 [ 640.303514] fuse_open_common+0x254/0x2c0 [ 640.308005] do_dentry_open+0x4aa/0x1160 [ 640.312066] ? fuse_open_common+0x2c0/0x2c0 [ 640.316726] ? inode_permission.part.0+0x10c/0x450 [ 640.321659] ? chown_common+0x550/0x550 [ 640.326062] ? inode_permission+0x3d/0x140 [ 640.330295] path_openat+0x793/0x2df0 [ 640.334090] ? path_lookupat+0x8d0/0x8d0 [ 640.338573] ? mark_held_locks+0xf0/0xf0 [ 640.342639] ? mark_held_locks+0xf0/0xf0 [ 640.347031] do_filp_open+0x18c/0x3f0 [ 640.350829] ? may_open_dev+0xf0/0xf0 [ 640.354615] ? lock_downgrade+0x720/0x720 [ 640.359093] ? lock_acquire+0x170/0x3c0 [ 640.363067] ? __alloc_fd+0x34/0x570 [ 640.367085] ? do_raw_spin_unlock+0x171/0x230 [ 640.371580] ? _raw_spin_unlock+0x29/0x40 [ 640.376038] ? __alloc_fd+0x28d/0x570 [ 640.379837] do_sys_open+0x3b3/0x520 [ 640.383531] ? filp_open+0x70/0x70 [ 640.387390] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 640.392754] ? trace_hardirqs_off_caller+0x6e/0x210 [ 640.398122] ? do_syscall_64+0x21/0x620 [ 640.402097] do_syscall_64+0xf9/0x620 [ 640.406205] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 640.411393] RIP: 0033:0x7f400b986149 [ 640.415535] Code: Bad RIP value. [ 640.418892] RSP: 002b:00007f400b92f2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 640.426907] RAX: ffffffffffffffda RBX: 00007f400ba0f4a0 RCX: 00007f400b986149 [ 640.434172] RDX: 00007f400b986149 RSI: 0000000000000000 RDI: 00000000200001c0 [ 640.441758] RBP: 00007f400b9dc37c R08: 0000000000000000 R09: 0000000000000000 [ 640.449272] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 640.456797] R13: 00007f400b9d8370 R14: 00007f400b9da378 R15: 00007f400ba0f4a8 [ 640.464089] [ 640.464089] Showing all locks held in the system: [ 640.470764] 1 lock held by khungtaskd/1572: [ 640.475375] #0: 000000007128f21f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 640.484087] 1 lock held by in:imklog/7783: [ 640.488379] 2 locks held by syz-executor311/8120: [ 640.493203] #0: 00000000f3f46f1a (sb_writers#12){.+.+}, at: mnt_want_write+0x3a/0xb0 [ 640.501247] #1: 00000000fc050e6c (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0 [ 640.510900] [ 640.512517] ============================================= [ 640.512517] [ 640.519599] NMI backtrace for cpu 1 [ 640.523217] CPU: 1 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 640.530641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 640.539971] Call Trace: [ 640.542543] dump_stack+0x1fc/0x2ef [ 640.546151] nmi_cpu_backtrace.cold+0x63/0xa2 [ 640.550626] ? lapic_can_unplug_cpu+0x80/0x80 [ 640.555106] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 640.560383] watchdog+0x991/0xe60 [ 640.563819] ? reset_hung_task_detector+0x30/0x30 [ 640.568641] kthread+0x33f/0x460 [ 640.571985] ? kthread_park+0x180/0x180 [ 640.575938] ret_from_fork+0x24/0x30 [ 640.579733] Sending NMI from CPU 1 to CPUs 0: [ 640.584714] NMI backtrace for cpu 0 [ 640.584720] CPU: 0 PID: 4695 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 640.584726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 640.584730] RIP: 0010:msg_print_ext_body+0x76/0x450 [ 640.584747] Code: ed eb 76 e8 ac 23 15 00 44 89 e6 bf 5c 00 00 00 e8 cf 24 15 00 41 80 fc 5c 0f 84 ab 00 00 00 e8 90 23 15 00 48 39 1c 24 76 36 85 23 15 00 48 8d 53 01 48 89 d8 48 b9 00 00 00 00 00 fc ff df [ 640.584752] RSP: 0018:ffff8880a0907b50 EFLAGS: 00000016 [ 640.584760] RAX: ffff8880a08fe640 RBX: ffff8880a0b707fb RCX: ffffffff814d61d1 [ 640.584765] RDX: 0000000000000000 RSI: ffffffff814d61e0 RDI: 0000000000000001 [ 640.584770] RBP: 0000000000000000 R08: ffffffff8d224f94 R09: 000000000000005c [ 640.584775] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000053 [ 640.584780] R13: 0000000000000021 R14: ffffffff8d224f94 R15: 0000000000000033 [ 640.584785] FS: 00007f5cbdefe8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 640.584789] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 640.584794] CR2: 00007f5cbb2ce008 CR3: 00000000a0f47000 CR4: 00000000003406f0 [ 640.584799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 640.584804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 640.584807] Call Trace: [ 640.584810] devkmsg_read+0x540/0xae0 [ 640.584814] ? aa_path_link+0x410/0x410 [ 640.584817] ? __put_seccomp_filter+0xa0/0xa0 [ 640.584822] ? __add_preferred_console.constprop.0+0x1a0/0x1a0 [ 640.584826] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 640.584829] __vfs_read+0xf7/0x750 [ 640.584833] ? __add_preferred_console.constprop.0+0x1a0/0x1a0 [ 640.584837] ? __se_sys_copy_file_range+0x410/0x410 [ 640.584841] ? fsnotify_first_mark+0x200/0x200 [ 640.584844] ? mark_held_locks+0xf0/0xf0 [ 640.584848] ? security_file_permission+0x1c0/0x220 [ 640.584851] vfs_read+0x194/0x3c0 [ 640.584854] ksys_read+0x12b/0x2a0 [ 640.584858] ? kernel_write+0x110/0x110 [ 640.584862] ? trace_hardirqs_off_caller+0x6e/0x210 [ 640.584865] ? do_syscall_64+0x21/0x620 [ 640.584868] do_syscall_64+0xf9/0x620 [ 640.584872] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 640.584875] RIP: 0033:0x7f5cbd48d210 [ 640.584886] Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24 [ 640.584890] RSP: 002b:00007ffe93d96a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 640.584898] RAX: ffffffffffffffda RBX: 00007ffe93d994a0 RCX: 00007f5cbd48d210 [ 640.584903] RDX: 0000000000002000 RSI: 00007ffe93d972a0 RDI: 0000000000000009 [ 640.584908] RBP: 0000000000000000 R08: 0000000000000008 R09: 000000a4f2b24eaf [ 640.584914] R10: 0012eb9fb2c5afc0 R11: 0000000000000246 R12: 00007ffe93d972a0 [ 640.584919] R13: 00007ffe93d993f8 R14: 000055c2e7cb6958 R15: 0005ecb443d647b2 [ 640.585272] Kernel panic - not syncing: hung_task: blocked tasks [ 640.862133] CPU: 1 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 640.869558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 640.878888] Call Trace: [ 640.881462] dump_stack+0x1fc/0x2ef [ 640.885089] panic+0x26a/0x50e [ 640.888259] ? __warn_printk+0xf3/0xf3 [ 640.892126] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 640.897227] ? cpumask_next+0x3c/0x40 [ 640.901098] ? printk_safe_flush+0xd6/0x120 [ 640.905404] ? watchdog+0x991/0xe60 [ 640.909021] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 640.914463] watchdog+0x9a2/0xe60 [ 640.917902] ? reset_hung_task_detector+0x30/0x30 [ 640.922751] kthread+0x33f/0x460 [ 640.926106] ? kthread_park+0x180/0x180 [ 640.930077] ret_from_fork+0x24/0x30 [ 640.934074] Kernel Offset: disabled [ 640.937691] Rebooting in 86400 seconds..