Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts. syzkaller login: [ 492.641984] IPVS: ftp: loaded support on port[0] = 21 executing program [ 717.626887] INFO: task syz-executor461:8090 blocked for more than 140 seconds. [ 717.634358] Not tainted 4.19.211-syzkaller #0 [ 717.640290] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.648350] syz-executor461 D27504 8090 8089 0x00000000 [ 717.653985] Call Trace: [ 717.656557] __schedule+0x887/0x2040 [ 717.660313] ? io_schedule_timeout+0x140/0x140 [ 717.664893] ? mark_held_locks+0xa6/0xf0 [ 717.669007] ? rwsem_down_read_failed+0x20a/0x390 [ 717.673848] schedule+0x8d/0x1b0 [ 717.677271] rwsem_down_read_failed+0x20a/0x390 [ 717.681941] ? rt_mutex_futex_unlock+0xf0/0xf0 [ 717.686526] ? unlazy_walk+0x21f/0x540 [ 717.690458] call_rwsem_down_read_failed+0x14/0x30 [ 717.695386] down_read+0x44/0x80 [ 717.698793] ? walk_component+0x798/0xda0 [ 717.702937] walk_component+0x798/0xda0 [ 717.706948] ? lookup_fast+0x1080/0x1080 [ 717.711006] ? lock_downgrade+0x720/0x720 [ 717.715162] ? fuse_allow_current_process+0x107/0x340 [ 717.720383] ? fuse_getattr+0x2e0/0x2e0 [ 717.724356] ? fuse_permission+0x168/0x5a0 [ 717.728625] ? security_inode_permission+0xc5/0xf0 [ 717.733558] ? inode_permission.part.0+0x10c/0x450 [ 717.738524] link_path_walk.part.0+0x901/0x1230 [ 717.743192] ? walk_component+0xda0/0xda0 [ 717.747392] ? percpu_counter_add_batch+0x126/0x180 [ 717.752413] path_openat+0x1db/0x2df0 [ 717.756203] ? path_lookupat+0x8d0/0x8d0 [ 717.760297] ? mark_held_locks+0xf0/0xf0 [ 717.764359] ? mark_held_locks+0xf0/0xf0 [ 717.768455] ? lock_downgrade+0x720/0x720 [ 717.772603] do_filp_open+0x18c/0x3f0 [ 717.776385] ? may_open_dev+0xf0/0xf0 [ 717.780227] ? lock_downgrade+0x720/0x720 [ 717.784369] ? lock_acquire+0x170/0x3c0 [ 717.788372] ? __alloc_fd+0x34/0x570 [ 717.792084] ? do_raw_spin_unlock+0x171/0x230 [ 717.796564] ? _raw_spin_unlock+0x29/0x40 [ 717.800739] ? __alloc_fd+0x28d/0x570 [ 717.804559] do_sys_open+0x3b3/0x520 [ 717.808319] ? filp_open+0x70/0x70 [ 717.811859] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.817255] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.822285] ? do_syscall_64+0x21/0x620 [ 717.826243] do_syscall_64+0xf9/0x620 [ 717.830081] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.835282] RIP: 0033:0x7f7c0adf7088 [ 717.839031] Code: Bad RIP value. [ 717.842387] RSP: 002b:00007fff33184b60 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 717.850140] RAX: ffffffffffffffda RBX: 00007fff33184bd0 RCX: 00007f7c0adf7088 [ 717.857452] RDX: 0000000000090800 RSI: 00007f7c0ae4d004 RDI: 00000000ffffff9c [ 717.864711] RBP: 0000000000000002 R08: 0000000000090800 R09: 00007f7c0ae4d004 [ 717.872005] R10: 0000000000000000 R11: 0000000000000287 R12: 00007fff33184d5c [ 717.879313] R13: 0000000000000002 R14: 00007fff33184db0 R15: 00007fff33184da0 [ 717.886600] INFO: task syz-executor461:8114 blocked for more than 140 seconds. [ 717.893994] Not tainted 4.19.211-syzkaller #0 [ 717.899047] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.907056] syz-executor461 D27272 8114 8090 0x00000004 [ 717.912679] Call Trace: [ 717.915260] __schedule+0x887/0x2040 [ 717.919016] ? io_schedule_timeout+0x140/0x140 [ 717.923595] ? prepare_to_wait_exclusive+0x2d0/0x2d0 [ 717.928730] schedule+0x8d/0x1b0 [ 717.932119] request_wait_answer+0x3dc/0x750 [ 717.936514] ? flush_bg_queue+0x390/0x390 [ 717.940691] ? wait_woken+0x250/0x250 [ 717.944493] __fuse_request_send+0x123/0x1c0 [ 717.948941] fuse_simple_request+0x2e6/0x820 [ 717.953351] fuse_lookup_name+0x24c/0x5c0 [ 717.957560] ? fuse_lock_inode+0xaf/0xe0 [ 717.961618] ? fuse_readdir+0x12f0/0x12f0 [ 717.965752] ? d_alloc_parallel+0x744/0x19e0 [ 717.970214] fuse_lookup+0xdf/0x410 [ 717.973837] ? fuse_lookup_name+0x5c0/0x5c0 [ 717.978207] ? __lockdep_init_map+0x100/0x5a0 [ 717.982692] ? __lockdep_init_map+0x100/0x5a0 [ 717.987228] __lookup_slow+0x246/0x4a0 [ 717.991116] ? follow_dotdot_rcu+0x1040/0x1040 [ 717.995682] ? lookup_fast+0x4e9/0x1080 [ 717.999697] ? walk_component+0x798/0xda0 [ 718.003844] walk_component+0x7ac/0xda0 [ 718.007863] ? lookup_fast+0x1080/0x1080 [ 718.011917] ? lock_downgrade+0x720/0x720 [ 718.016050] ? fuse_allow_current_process+0x107/0x340 [ 718.021271] ? fuse_getattr+0x2e0/0x2e0 [ 718.025243] ? fuse_permission+0x168/0x5a0 [ 718.029992] ? security_inode_permission+0xc5/0xf0 [ 718.034928] ? inode_permission.part.0+0x10c/0x450 [ 718.039899] link_path_walk.part.0+0x901/0x1230 [ 718.044566] ? walk_component+0xda0/0xda0 [ 718.048754] ? percpu_counter_add_batch+0x126/0x180 [ 718.053768] path_openat+0x1db/0x2df0 [ 718.057608] ? path_lookupat+0x8d0/0x8d0 [ 718.061662] ? mark_held_locks+0xf0/0xf0 [ 718.065713] do_filp_open+0x18c/0x3f0 [ 718.069567] ? may_open_dev+0xf0/0xf0 [ 718.073410] ? lock_downgrade+0x720/0x720 [ 718.077601] ? lock_acquire+0x170/0x3c0 [ 718.081575] ? __alloc_fd+0x34/0x570 [ 718.085271] ? do_raw_spin_unlock+0x171/0x230 [ 718.089804] ? _raw_spin_unlock+0x29/0x40 [ 718.093951] ? __alloc_fd+0x28d/0x570 [ 718.097789] do_sys_open+0x3b3/0x520 [ 718.101498] ? filp_open+0x70/0x70 [ 718.105040] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.110453] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.115466] ? do_syscall_64+0x21/0x620 [ 718.119472] do_syscall_64+0xf9/0x620 [ 718.123275] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.128492] RIP: 0033:0x7f7c0adf73f9 [ 718.132217] Code: Bad RIP value. [ 718.135564] RSP: 002b:00007f7c0ada82f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 718.143316] RAX: ffffffffffffffda RBX: 00007f7c0ae824c0 RCX: 00007f7c0adf73f9 [ 718.150629] RDX: 0000000000000042 RSI: 0000000020002080 RDI: ffffffffffffff9c [ 718.157936] RBP: 00007f7c0ae4f1c4 R08: 0000000000000065 R09: 0000000000000000 [ 718.165211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000065 [ 718.172517] R13: 00007f7c0ae4f1e8 R14: 31f4000000000002 R15: 00007f7c0ae824c8 [ 718.179857] INFO: task syz-executor461:8117 blocked for more than 140 seconds. [ 718.187318] Not tainted 4.19.211-syzkaller #0 [ 718.192322] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 718.200321] syz-executor461 D29072 8117 8090 0x00000004 [ 718.205946] Call Trace: [ 718.208575] __schedule+0x887/0x2040 [ 718.212287] ? io_schedule_timeout+0x140/0x140 [ 718.216905] ? mark_held_locks+0xa6/0xf0 [ 718.220966] ? rwsem_down_write_failed+0x3a5/0x760 [ 718.225877] schedule+0x8d/0x1b0 [ 718.229272] rwsem_down_write_failed+0x3aa/0x760 [ 718.234031] ? rwsem_down_read_failed_killable+0x580/0x580 [ 718.239687] ? do_raw_spin_unlock+0x171/0x230 [ 718.244194] call_rwsem_down_write_failed+0x13/0x20 [ 718.249273] ? __lock_acquire+0x2853/0x3ff0 [ 718.253593] down_write+0x4f/0x90 [ 718.257093] ? fuse_reverse_inval_entry+0xaa/0x660 [ 718.262028] fuse_reverse_inval_entry+0xaa/0x660 [ 718.266910] ? fuse_update_attributes+0xc0/0xc0 [ 718.266925] ? fuse_dev_do_write+0x2343/0x2bc0 [ 718.266944] fuse_dev_do_write+0x239e/0x2bc0 [ 718.266961] ? futex_wait_queue_me+0x404/0x5e0 [ 718.285164] ? mark_held_locks+0xf0/0xf0 [ 718.289260] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 718.294364] ? fuse_dev_read+0x1f0/0x1f0 [ 718.298487] ? futex_wait+0x48e/0x610 [ 718.302311] ? lock_downgrade+0x720/0x720 [ 718.306444] ? check_preemption_disabled+0x41/0x280 [ 718.311563] ? check_preemption_disabled+0x41/0x280 [ 718.316593] ? aa_file_perm+0x417/0xd20 [ 718.320629] fuse_dev_write+0x153/0x1e0 [ 718.324607] ? fuse_dev_splice_write+0xa00/0xa00 [ 718.329395] ? do_futex+0x171/0x1880 [ 718.333161] ? iov_iter_init+0xb8/0x1d0 [ 718.337193] ? iov_iter_init+0xb8/0x1d0 [ 718.341168] __vfs_write+0x51b/0x770 [ 718.344895] ? kernel_read+0x110/0x110 [ 718.348829] ? security_file_permission+0x1c0/0x220 [ 718.353843] vfs_write+0x1f3/0x540 [ 718.357429] ksys_write+0x12b/0x2a0 [ 718.361057] ? __ia32_sys_read+0xb0/0xb0 [ 718.365104] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.370161] ? do_syscall_64+0x21/0x620 [ 718.374138] do_syscall_64+0xf9/0x620 [ 718.377976] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.383163] RIP: 0033:0x7f7c0adf73f9 [ 718.386905] Code: Bad RIP value. [ 718.390259] RSP: 002b:00007f7c0ad872f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 718.397994] RAX: ffffffffffffffda RBX: 00007f7c0ae824d0 RCX: 00007f7c0adf73f9 [ 718.405260] RDX: 000000000000002c RSI: 00000000200000c0 RDI: 0000000000000003 [ 718.412558] RBP: 00007f7c0ae4f1c4 R08: 0000000000000000 R09: 0000000000000000 [ 718.419879] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 718.427192] R13: 00007f7c0ae4f1e8 R14: 31f4000000000002 R15: 00007f7c0ae824d8 [ 718.434479] [ 718.434479] Showing all locks held in the system: [ 718.440852] 1 lock held by khungtaskd/1570: [ 718.445162] #0: 000000004a97fe08 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.453821] 1 lock held by syz-executor461/8090: [ 718.458610] #0: 00000000ca1c53fd (&type->i_mutex_dir_key#7){++++}, at: walk_component+0x798/0xda0 [ 718.467758] 2 locks held by syz-executor461/8114: [ 718.472591] #0: 00000000ca1c53fd (&type->i_mutex_dir_key#7){++++}, at: walk_component+0x798/0xda0 [ 718.481731] #1: 00000000ddb5b05d (&fi->mutex){+.+.}, at: fuse_lock_inode+0xaf/0xe0 [ 718.489586] 2 locks held by syz-executor461/8117: [ 718.494411] #0: 000000009cd85bcc (&fc->killsb){.+.+}, at: fuse_dev_do_write+0x2343/0x2bc0 [ 718.502844] #1: 00000000ca1c53fd (&type->i_mutex_dir_key#7){++++}, at: fuse_reverse_inval_entry+0xaa/0x660 [ 718.512785] [ 718.514421] ============================================= [ 718.514421] [ 718.521495] NMI backtrace for cpu 0 [ 718.525113] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.532536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 718.541868] Call Trace: [ 718.544452] dump_stack+0x1fc/0x2ef [ 718.548062] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.552539] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.557016] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.562274] watchdog+0x991/0xe60 [ 718.565709] ? reset_hung_task_detector+0x30/0x30 [ 718.570532] kthread+0x33f/0x460 [ 718.573880] ? kthread_park+0x180/0x180 [ 718.577832] ret_from_fork+0x24/0x30 [ 718.581690] Sending NMI from CPU 0 to CPUs 1: [ 718.586622] NMI backtrace for cpu 1 [ 718.586628] CPU: 1 PID: 4694 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 718.586634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 718.586638] RIP: 0010:link_path_walk.part.0+0x2/0x1230 [ 718.586649] Code: f2 ff e9 97 f8 ff ff e8 bc 21 f2 ff e9 59 f8 ff ff e8 22 21 f2 ff e9 e1 f8 ff ff e8 a8 21 f2 ff e9 a6 f8 ff ff 0f 1f 00 41 57 <49> 89 ff 41 56 49 89 f6 41 55 41 54 55 53 48 bb 00 00 00 00 00 fc [ 718.586653] RSP: 0018:ffff8880a0fdfb60 EFLAGS: 00000293 [ 718.586661] RAX: ffff8880a0fd2600 RBX: 0000000000000000 RCX: ffffffff81a6697e [ 718.586665] RDX: 0000000000000000 RSI: ffff8880a0fdfce0 RDI: ffff8880af9c2a20 [ 718.586679] RBP: ffff8880af9c2a20 R08: ffffffff8cd37ca0 R09: fffffffffffff000 [ 718.586685] R10: 0000000000000007 R11: 0000000000000000 R12: ffff8880a0fd2600 [ 718.586690] R13: ffff8880a0fdfce0 R14: 0000000000000001 R15: ffff8880a0fdfe90 [ 718.586696] FS: 00007f326ca118c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 718.586701] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.586706] CR2: 00007f3269dee010 CR3: 00000000a0e62000 CR4: 00000000003406e0 [ 718.586711] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.586716] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.586719] Call Trace: [ 718.586722] path_openat+0x1db/0x2df0 [ 718.586726] ? path_lookupat+0x8d0/0x8d0 [ 718.586730] ? __put_seccomp_filter+0xa0/0xa0 [ 718.586733] ? mark_held_locks+0xf0/0xf0 [ 718.586737] do_filp_open+0x18c/0x3f0 [ 718.586740] ? may_open_dev+0xf0/0xf0 [ 718.586744] ? lock_downgrade+0x720/0x720 [ 718.586748] ? lock_acquire+0x170/0x3c0 [ 718.586751] ? __alloc_fd+0x34/0x570 [ 718.586755] ? do_raw_spin_unlock+0x171/0x230 [ 718.586759] ? _raw_spin_unlock+0x29/0x40 [ 718.586762] ? __alloc_fd+0x28d/0x570 [ 718.586766] do_sys_open+0x3b3/0x520 [ 718.586769] ? filp_open+0x70/0x70 [ 718.586773] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 718.586777] ? trace_hardirqs_off_caller+0x6e/0x210 [ 718.586780] ? do_syscall_64+0x21/0x620 [ 718.586784] do_syscall_64+0xf9/0x620 [ 718.586788] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.586791] RIP: 0033:0x7f326bfa0840 [ 718.586801] 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 [ 718.586805] RSP: 002b:00007fff16cafbf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 718.586814] RAX: ffffffffffffffda RBX: 00007fff16caff00 RCX: 00007f326bfa0840 [ 718.586819] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055ec2a11fc10 [ 718.586824] RBP: 000000000000000d R08: 000000000000ffc0 R09: 00000000ffffffff [ 718.586829] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 718.586834] R13: 000055ec2a113040 R14: 00007fff16cafec0 R15: 000055ec2a11fc60 [ 718.587194] Kernel panic - not syncing: hung_task: blocked tasks [ 718.862723] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.870152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 718.879488] Call Trace: [ 718.882071] dump_stack+0x1fc/0x2ef [ 718.885679] panic+0x26a/0x50e [ 718.888854] ? __warn_printk+0xf3/0xf3 [ 718.892722] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.897807] ? cpumask_next+0x3c/0x40 [ 718.901585] ? printk_safe_flush+0xd6/0x120 [ 718.905887] ? watchdog+0x991/0xe60 [ 718.909508] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.914954] watchdog+0x9a2/0xe60 [ 718.918389] ? reset_hung_task_detector+0x30/0x30 [ 718.923315] kthread+0x33f/0x460 [ 718.926666] ? kthread_park+0x180/0x180 [ 718.930628] ret_from_fork+0x24/0x30 [ 718.934581] Kernel Offset: disabled [ 718.938197] Rebooting in 86400 seconds..