INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes [ 856.273481] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts. [ 861.883008] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes [ 1144.800151] INFO: task syz-executor071:2056 blocked for more than 140 seconds. [ 1144.807656] Not tainted 4.14.67+ #1 [ 1144.812462] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.820599] syz-executor071 D27816 2056 2054 0x00000000 [ 1144.826216] Call Trace: [ 1144.828878] ? __schedule+0x729/0x1ed0 [ 1144.833077] ? mutex_spin_on_owner+0x1c9/0x4a0 [ 1144.837650] ? __sched_text_start+0x8/0x8 [ 1144.842087] ? lock_downgrade+0x560/0x560 [ 1144.846223] ? lock_acquire+0x10f/0x380 [ 1144.850456] ? __mutex_lock+0x5fc/0x1480 [ 1144.854518] schedule+0x7f/0x1b0 [ 1144.857868] schedule_preempt_disabled+0x13/0x20 [ 1144.862954] __mutex_lock+0x521/0x1480 [ 1144.866840] ? __mutex_lock+0x6f4/0x1480 [ 1144.871236] ? lo_open+0x17/0xa0 [ 1144.874633] ? blkdev_ioctl+0x17d1/0x18c0 [ 1144.878764] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1144.884541] ? refcount_inc_not_zero+0x6b/0xb0 [ 1144.889116] ? disk_get_part+0x9a/0x140 [ 1144.893398] ? refcount_inc_not_zero+0x6b/0xb0 [ 1144.898011] ? check_preemption_disabled+0x34/0x160 [ 1144.903263] ? loop_unregister_transfer+0x90/0x90 [ 1144.908098] ? lo_open+0x17/0xa0 [ 1144.911738] lo_open+0x17/0xa0 [ 1144.915002] __blkdev_get+0x267/0xe50 [ 1144.918790] ? __blkdev_put+0x6e0/0x6e0 [ 1144.922976] ? check_preemption_disabled+0x34/0x160 [ 1144.928003] ? fsnotify+0x639/0x12d0 [ 1144.931842] blkdev_get+0x97/0x8c0 [ 1144.935437] ? bd_may_claim+0xe0/0xe0 [ 1144.939223] ? bd_acquire+0x171/0x2c0 [ 1144.943068] ? lock_downgrade+0x560/0x560 [ 1144.947208] ? lock_acquire+0x10f/0x380 [ 1144.951211] ? bd_acquire+0x21/0x2c0 [ 1144.954929] blkdev_open+0x1bd/0x240 [ 1144.958764] ? security_file_open+0x88/0x190 [ 1144.963334] do_dentry_open+0x426/0xda0 [ 1144.967312] ? bd_acquire+0x2c0/0x2c0 [ 1144.971155] vfs_open+0x11c/0x210 [ 1144.974643] path_openat+0x4eb/0x23a0 [ 1144.978438] ? path_mountpoint+0x9a0/0x9a0 [ 1144.982739] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1144.987242] ? trace_hardirqs_on+0x10/0x10 [ 1144.991540] do_filp_open+0x197/0x270 [ 1144.995339] ? may_open_dev+0xd0/0xd0 [ 1144.999128] ? _raw_spin_unlock+0x29/0x40 [ 1145.003337] do_sys_open+0x2ef/0x580 [ 1145.007097] ? filp_open+0x60/0x60 [ 1145.010690] ? up_read+0x17/0x30 [ 1145.014192] ? __do_page_fault+0x64c/0xb60 [ 1145.018436] ? do_syscall_64+0x43/0x4b0 [ 1145.022462] ? do_sys_open+0x580/0x580 [ 1145.026348] do_syscall_64+0x19b/0x4b0 [ 1145.030276] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.035462] RIP: 0033:0x401260 [ 1145.038628] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1145.046397] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000401260 [ 1145.053696] RDX: 00007ffe2817f8ca RSI: 0000000000000002 RDI: 00007ffe2817f8c0 [ 1145.061017] RBP: 00000000006cc018 R08: 0000000000000000 R09: 000000000000000a [ 1145.068355] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000402190 [ 1145.075699] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1145.083018] INFO: task syz-executor071:2058 blocked for more than 140 seconds. [ 1145.090432] Not tainted 4.14.67+ #1 [ 1145.094571] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.102696] syz-executor071 D29656 2058 2055 0x00000004 [ 1145.108440] Call Trace: [ 1145.111085] ? __schedule+0x729/0x1ed0 [ 1145.114973] ? mutex_spin_on_owner+0x1c9/0x4a0 [ 1145.119542] ? __sched_text_start+0x8/0x8 [ 1145.123794] ? lock_downgrade+0x560/0x560 [ 1145.127943] ? lock_acquire+0x10f/0x380 [ 1145.131975] ? __mutex_lock+0x5fc/0x1480 [ 1145.136039] schedule+0x7f/0x1b0 [ 1145.139390] schedule_preempt_disabled+0x13/0x20 [ 1145.144242] __mutex_lock+0x521/0x1480 [ 1145.148132] ? loop_control_ioctl+0x180/0x310 [ 1145.152730] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1145.158246] ? avc_ss_reset+0x100/0x100 [ 1145.162269] ? __mutex_unlock_slowpath+0x2a0/0x770 [ 1145.167196] ? wait_for_completion_io+0x10/0x10 [ 1145.171953] ? __radix_tree_lookup+0x183/0x220 [ 1145.176545] ? loop_control_ioctl+0x180/0x310 [ 1145.181159] loop_control_ioctl+0x180/0x310 [ 1145.185482] ? loop_probe+0x180/0x180 [ 1145.189322] ? __handle_mm_fault+0x657/0x23a0 [ 1145.193939] ? loop_probe+0x180/0x180 [ 1145.197912] do_vfs_ioctl+0x1a0/0x1030 [ 1145.201843] ? ioctl_preallocate+0x1d0/0x1d0 [ 1145.206260] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1145.212014] ? __do_page_fault+0x485/0xb60 [ 1145.216245] ? lock_downgrade+0x4fb/0x560 [ 1145.220434] ? security_file_ioctl+0x7c/0xb0 [ 1145.224840] SyS_ioctl+0x7e/0xb0 [ 1145.228187] ? do_vfs_ioctl+0x1030/0x1030 [ 1145.232374] do_syscall_64+0x19b/0x4b0 [ 1145.236319] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.241564] RIP: 0033:0x441359 [ 1145.244746] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000010 [ 1145.252493] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441359 [ 1145.259887] RDX: 0000000000000002 RSI: 0000000000004c81 RDI: 0000000000000003 [ 1145.267206] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1145.274494] R10: 0000000000000001 R11: 0000000000000217 R12: 0000000000402190 [ 1145.281789] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1145.289087] INFO: task syz-executor071:2059 blocked for more than 140 seconds. [ 1145.296486] Not tainted 4.14.67+ #1 [ 1145.300647] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.308594] syz-executor071 D28376 2059 2057 0x00000004 [ 1145.314256] Call Trace: [ 1145.316846] ? __schedule+0x729/0x1ed0 [ 1145.320769] ? __sched_text_start+0x8/0x8 [ 1145.324915] ? lock_downgrade+0x560/0x560 [ 1145.329040] ? lock_acquire+0x10f/0x380 [ 1145.333049] ? __mutex_lock+0x1bc/0x1480 [ 1145.337108] schedule+0x7f/0x1b0 [ 1145.340641] schedule_preempt_disabled+0x13/0x20 [ 1145.345396] __mutex_lock+0x521/0x1480 [ 1145.349264] ? blkdev_reread_part+0x18/0x30 [ 1145.353738] ? __wake_up_common_lock+0xd2/0x120 [ 1145.358405] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1145.363886] ? mark_held_locks+0xc2/0x130 [ 1145.368039] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1145.373184] ? trace_hardirqs_on_caller+0x381/0x520 [ 1145.378200] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1145.383344] ? __wake_up_common+0x5a0/0x5a0 [ 1145.387672] ? blkdev_reread_part+0x18/0x30 [ 1145.392021] blkdev_reread_part+0x18/0x30 [ 1145.396173] loop_reread_partitions+0x72/0x80 [ 1145.400753] loop_set_status+0xa84/0xf40 [ 1145.404816] loop_set_status64+0x8d/0xe0 [ 1145.408858] ? loop_set_status_old+0x2d0/0x2d0 [ 1145.413504] lo_ioctl+0x3cd/0x17d0 [ 1145.417049] ? loop_clr_fd+0xac0/0xac0 [ 1145.421055] blkdev_ioctl+0x57d/0x18c0 [ 1145.424947] ? blkpg_ioctl+0x920/0x920 [ 1145.428819] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.434260] ? debug_check_no_obj_freed+0x2b2/0x77c [ 1145.439261] ? lock_downgrade+0x560/0x560 [ 1145.443679] ? lock_acquire+0x10f/0x380 [ 1145.447645] ? debug_check_no_obj_freed+0x150/0x77c [ 1145.452685] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1145.457772] ? trace_hardirqs_on_caller+0x381/0x520 [ 1145.462812] block_ioctl+0xd9/0x120 [ 1145.466419] ? blkdev_fallocate+0x3b0/0x3b0 [ 1145.470763] do_vfs_ioctl+0x1a0/0x1030 [ 1145.474635] ? ioctl_preallocate+0x1d0/0x1d0 [ 1145.479024] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1145.484829] ? rcu_read_lock_sched_held+0x102/0x120 [ 1145.489836] ? putname+0xcf/0x100 [ 1145.493338] ? do_sys_open+0x203/0x580 [ 1145.497209] ? filp_open+0x60/0x60 [ 1145.500771] ? security_file_ioctl+0x7c/0xb0 [ 1145.505282] SyS_ioctl+0x7e/0xb0 [ 1145.508628] ? do_vfs_ioctl+0x1030/0x1030 [ 1145.512832] do_syscall_64+0x19b/0x4b0 [ 1145.516710] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.521919] RIP: 0033:0x441267 [ 1145.525088] RSP: 002b:00007ffe2817f668 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1145.532821] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000441267 [ 1145.540106] RDX: 00007ffe2817f700 RSI: 0000000000004c04 RDI: 0000000000000005 [ 1145.547350] RBP: 0000000020000228 R08: 0000000000000000 R09: 000000000000000a [ 1145.554634] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000005 [ 1145.561903] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000000 [ 1145.569225] INFO: task blkid:2060 blocked for more than 140 seconds. [ 1145.575812] Not tainted 4.14.67+ #1 [ 1145.579942] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.587937] blkid D29000 2060 455 0x00000004 [ 1145.593573] Call Trace: [ 1145.596150] ? __schedule+0x729/0x1ed0 [ 1145.600090] ? __sched_text_start+0x8/0x8 [ 1145.604224] ? lock_downgrade+0x560/0x560 [ 1145.608343] ? lock_acquire+0x10f/0x380 [ 1145.612330] ? __mutex_lock+0x1bc/0x1480 [ 1145.616374] schedule+0x7f/0x1b0 [ 1145.619723] schedule_preempt_disabled+0x13/0x20 [ 1145.624594] __mutex_lock+0x521/0x1480 [ 1145.628494] ? __mutex_lock+0x6f4/0x1480 [ 1145.632639] ? lo_open+0x17/0xa0 [ 1145.635993] ? blkdev_ioctl+0x17d0/0x18c0 [ 1145.640167] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1145.645605] ? refcount_inc_not_zero+0x6b/0xb0 [ 1145.650225] ? disk_get_part+0x9a/0x140 [ 1145.654197] ? refcount_inc_not_zero+0x6b/0xb0 [ 1145.658754] ? check_preemption_disabled+0x34/0x160 [ 1145.663930] ? loop_unregister_transfer+0x90/0x90 [ 1145.668858] ? lo_open+0x17/0xa0 [ 1145.672252] lo_open+0x17/0xa0 [ 1145.675437] __blkdev_get+0x267/0xe50 [ 1145.679222] ? __blkdev_put+0x6e0/0x6e0 [ 1145.683224] ? check_preemption_disabled+0x34/0x160 [ 1145.688221] ? fsnotify+0x639/0x12d0 [ 1145.691954] blkdev_get+0x97/0x8c0 [ 1145.695655] ? bd_may_claim+0xe0/0xe0 [ 1145.699439] ? bd_acquire+0x171/0x2c0 [ 1145.703398] ? lock_downgrade+0x560/0x560 [ 1145.707545] ? lock_acquire+0x10f/0x380 [ 1145.711552] ? bd_acquire+0x21/0x2c0 [ 1145.715269] blkdev_open+0x1bd/0x240 [ 1145.718962] ? security_file_open+0x88/0x190 [ 1145.723419] do_dentry_open+0x426/0xda0 [ 1145.727390] ? bd_acquire+0x2c0/0x2c0 [ 1145.731231] vfs_open+0x11c/0x210 [ 1145.734685] path_openat+0x4eb/0x23a0 [ 1145.738472] ? path_mountpoint+0x9a0/0x9a0 [ 1145.742768] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1145.747266] ? trace_hardirqs_on+0x10/0x10 [ 1145.751594] do_filp_open+0x197/0x270 [ 1145.755396] ? may_open_dev+0xd0/0xd0 [ 1145.759188] ? _raw_spin_unlock+0x29/0x40 [ 1145.763481] do_sys_open+0x2ef/0x580 [ 1145.767197] ? filp_open+0x60/0x60 [ 1145.770787] ? up_read+0x17/0x30 [ 1145.774150] ? __do_page_fault+0x64c/0xb60 [ 1145.778367] ? do_syscall_64+0x43/0x4b0 [ 1145.782380] ? do_sys_open+0x580/0x580 [ 1145.786262] do_syscall_64+0x19b/0x4b0 [ 1145.790215] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.795401] RIP: 0033:0x7fae6af4f120 [ 1145.799089] RSP: 002b:00007ffe8acd6588 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1145.806862] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae6af4f120 [ 1145.814152] RDX: 00007ffe8acd7f34 RSI: 0000000000000000 RDI: 00007ffe8acd7f34 [ 1145.821446] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1145.828712] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001c8e030 [ 1145.836088] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1145.843405] INFO: task syz-executor071:2068 blocked for more than 140 seconds. [ 1145.850799] Not tainted 4.14.67+ #1 [ 1145.854944] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.862989] syz-executor071 D29656 2068 2062 0x00000004 [ 1145.868623] Call Trace: [ 1145.871272] ? __schedule+0x729/0x1ed0 [ 1145.875166] ? __sched_text_start+0x8/0x8 [ 1145.879393] ? lock_downgrade+0x560/0x560 [ 1145.883592] ? lock_acquire+0x10f/0x380 [ 1145.887568] ? __mutex_lock+0x1bc/0x1480 [ 1145.891673] schedule+0x7f/0x1b0 [ 1145.895040] schedule_preempt_disabled+0x13/0x20 [ 1145.899774] __mutex_lock+0x521/0x1480 [ 1145.903716] ? loop_control_ioctl+0x71/0x310 [ 1145.908127] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1145.913613] ? avc_ss_reset+0x100/0x100 [ 1145.917586] ? add_mm_counter_fast+0xb0/0xb0 [ 1145.922047] ? __lock_acquire+0x619/0x4320 [ 1145.926280] ? do_wp_page+0x254/0x1880 [ 1145.930199] ? loop_control_ioctl+0x71/0x310 [ 1145.934605] ? trace_hardirqs_on+0x10/0x10 [ 1145.938823] loop_control_ioctl+0x71/0x310 [ 1145.943095] ? loop_probe+0x180/0x180 [ 1145.946898] ? __handle_mm_fault+0x657/0x23a0 [ 1145.951430] ? loop_probe+0x180/0x180 [ 1145.955229] do_vfs_ioctl+0x1a0/0x1030 [ 1145.959098] ? ioctl_preallocate+0x1d0/0x1d0 [ 1145.963535] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1145.969246] ? __do_page_fault+0x485/0xb60 [ 1145.973527] ? lock_downgrade+0x4fb/0x560 [ 1145.977678] ? security_file_ioctl+0x7c/0xb0 [ 1145.982117] SyS_ioctl+0x7e/0xb0 [ 1145.985479] ? do_vfs_ioctl+0x1030/0x1030 [ 1145.989605] do_syscall_64+0x19b/0x4b0 [ 1145.993524] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.998720] RIP: 0033:0x441359 [ 1146.001935] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1146.009640] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441359 [ 1146.016936] RDX: 0000000000441359 RSI: 0000000000004c82 RDI: 0000000000000003 [ 1146.024220] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1146.031637] R10: 0000000002066880 R11: 0000000000000213 R12: 0000000000402190 [ 1146.039019] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1146.046349] INFO: task syz-executor071:2069 blocked for more than 140 seconds. [ 1146.053736] Not tainted 4.14.67+ #1 [ 1146.057862] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.065984] syz-executor071 D29064 2069 2063 0x00000004 [ 1146.071791] Call Trace: [ 1146.074368] ? __schedule+0x729/0x1ed0 [ 1146.078239] ? __sched_text_start+0x8/0x8 [ 1146.082499] ? lock_downgrade+0x560/0x560 [ 1146.086647] ? lock_acquire+0x10f/0x380 [ 1146.090656] ? __mutex_lock+0x1bc/0x1480 [ 1146.094719] schedule+0x7f/0x1b0 [ 1146.098073] schedule_preempt_disabled+0x13/0x20 [ 1146.102871] __mutex_lock+0x521/0x1480 [ 1146.106758] ? __blkdev_get+0xf3/0xe50 [ 1146.110687] ? lock_downgrade+0x560/0x560 [ 1146.114838] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1146.120334] ? refcount_inc_not_zero+0x6b/0xb0 [ 1146.124918] ? get_disk+0xd0/0xd0 [ 1146.128357] ? blkdev_ioctl+0x18c0/0x18c0 [ 1146.132545] ? exact_match+0x9/0x20 [ 1146.136165] ? get_disk+0xd0/0xd0 [ 1146.139652] ? kobj_lookup+0x335/0x420 [ 1146.143611] ? __blkdev_get+0xf3/0xe50 [ 1146.147512] __blkdev_get+0xf3/0xe50 [ 1146.151303] ? trace_hardirqs_on+0x10/0x10 [ 1146.155550] ? __blkdev_put+0x6e0/0x6e0 [ 1146.159518] ? check_preemption_disabled+0x34/0x160 [ 1146.164615] ? fsnotify+0x639/0x12d0 [ 1146.168338] blkdev_get+0x97/0x8c0 [ 1146.171936] ? bd_may_claim+0xe0/0xe0 [ 1146.175828] ? bd_acquire+0x171/0x2c0 [ 1146.179634] ? lock_downgrade+0x560/0x560 [ 1146.183858] ? lock_acquire+0x10f/0x380 [ 1146.187839] ? bd_acquire+0x21/0x2c0 [ 1146.191750] blkdev_open+0x1bd/0x240 [ 1146.195463] ? security_file_open+0x88/0x190 [ 1146.199861] do_dentry_open+0x426/0xda0 [ 1146.203902] ? bd_acquire+0x2c0/0x2c0 [ 1146.207710] vfs_open+0x11c/0x210 [ 1146.211222] path_openat+0x4eb/0x23a0 [ 1146.215031] ? path_mountpoint+0x9a0/0x9a0 [ 1146.219251] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1146.223815] ? trace_hardirqs_on+0x10/0x10 [ 1146.228047] ? new_slab+0x358/0x470 [ 1146.231722] ? new_slab+0x25f/0x470 [ 1146.235353] do_filp_open+0x197/0x270 [ 1146.239137] ? may_open_dev+0xd0/0xd0 [ 1146.243115] ? _raw_spin_unlock+0x29/0x40 [ 1146.247270] do_sys_open+0x2ef/0x580 [ 1146.251050] ? filp_open+0x60/0x60 [ 1146.254589] ? up_read+0x17/0x30 [ 1146.257935] ? __do_page_fault+0x64c/0xb60 [ 1146.262225] ? do_syscall_64+0x43/0x4b0 [ 1146.266198] ? do_sys_open+0x580/0x580 [ 1146.270137] do_syscall_64+0x19b/0x4b0 [ 1146.274028] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.279198] RIP: 0033:0x401260 [ 1146.282439] RSP: 002b:00007ffe2817f668 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1146.290202] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000401260 [ 1146.297458] RDX: 00007ffe2817f7fa RSI: 0000000000000002 RDI: 00007ffe2817f7f0 [ 1146.304769] RBP: 0000000020000228 R08: 0000000000000000 R09: 000000000000000a [ 1146.312071] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000001 [ 1146.319327] R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000000000 [ 1146.326671] INFO: task syz-executor071:2070 blocked for more than 140 seconds. [ 1146.334056] Not tainted 4.14.67+ #1 [ 1146.338184] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.346211] syz-executor071 D29656 2070 2064 0x00000004 [ 1146.351883] Call Trace: [ 1146.354482] ? __schedule+0x729/0x1ed0 [ 1146.358362] ? __sched_text_start+0x8/0x8 [ 1146.362594] ? lock_downgrade+0x560/0x560 [ 1146.366742] ? lock_acquire+0x10f/0x380 [ 1146.370772] ? __mutex_lock+0x1bc/0x1480 [ 1146.374839] schedule+0x7f/0x1b0 [ 1146.378344] schedule_preempt_disabled+0x13/0x20 [ 1146.383224] __mutex_lock+0x521/0x1480 [ 1146.387121] ? loop_control_ioctl+0x71/0x310 [ 1146.391605] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1146.397052] ? avc_ss_reset+0x100/0x100 [ 1146.401080] ? add_mm_counter_fast+0xb0/0xb0 [ 1146.405489] ? __lock_acquire+0x619/0x4320 [ 1146.409805] ? do_wp_page+0x254/0x1880 [ 1146.413761] ? loop_control_ioctl+0x71/0x310 [ 1146.418174] ? trace_hardirqs_on+0x10/0x10 [ 1146.422594] loop_control_ioctl+0x71/0x310 [ 1146.426826] ? loop_probe+0x180/0x180 [ 1146.430665] ? __handle_mm_fault+0x657/0x23a0 [ 1146.435159] ? loop_probe+0x180/0x180 [ 1146.438965] do_vfs_ioctl+0x1a0/0x1030 [ 1146.442919] ? ioctl_preallocate+0x1d0/0x1d0 [ 1146.447562] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1146.453340] ? __do_page_fault+0x485/0xb60 [ 1146.457577] ? lock_downgrade+0x4fb/0x560 [ 1146.461798] ? security_file_ioctl+0x7c/0xb0 [ 1146.466210] SyS_ioctl+0x7e/0xb0 [ 1146.469556] ? do_vfs_ioctl+0x1030/0x1030 [ 1146.473755] do_syscall_64+0x19b/0x4b0 [ 1146.477647] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.482870] RIP: 0033:0x441359 [ 1146.486053] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1146.493797] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441359 [ 1146.501090] RDX: 0000000000441359 RSI: 0000000000004c82 RDI: 0000000000000003 [ 1146.508357] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1146.515676] R10: 0000000002066880 R11: 0000000000000213 R12: 0000000000402190 [ 1146.522985] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1146.530315] INFO: task syz-executor071:2071 blocked for more than 140 seconds. [ 1146.537667] Not tainted 4.14.67+ #1 [ 1146.541839] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.549808] syz-executor071 D29656 2071 2066 0x00000004 [ 1146.555495] Call Trace: [ 1146.558086] ? __schedule+0x729/0x1ed0 [ 1146.562014] ? __sched_text_start+0x8/0x8 [ 1146.566160] ? lock_downgrade+0x560/0x560 [ 1146.570334] ? lock_acquire+0x10f/0x380 [ 1146.574308] ? __mutex_lock+0x1bc/0x1480 [ 1146.578357] schedule+0x7f/0x1b0 [ 1146.581757] schedule_preempt_disabled+0x13/0x20 [ 1146.586511] __mutex_lock+0x521/0x1480 [ 1146.590438] ? loop_control_ioctl+0x71/0x310 [ 1146.594849] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1146.600360] ? avc_ss_reset+0x100/0x100 [ 1146.604337] ? add_mm_counter_fast+0xb0/0xb0 [ 1146.608839] ? __lock_acquire+0x619/0x4320 [ 1146.613128] ? do_wp_page+0x254/0x1880 [ 1146.617015] ? loop_control_ioctl+0x71/0x310 [ 1146.621459] ? trace_hardirqs_on+0x10/0x10 [ 1146.625694] loop_control_ioctl+0x71/0x310 [ 1146.629909] ? loop_probe+0x180/0x180 [ 1146.633862] ? __handle_mm_fault+0x657/0x23a0 [ 1146.638358] ? loop_probe+0x180/0x180 [ 1146.642185] do_vfs_ioctl+0x1a0/0x1030 [ 1146.646070] ? ioctl_preallocate+0x1d0/0x1d0 [ 1146.650505] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1146.656212] ? __do_page_fault+0x485/0xb60 [ 1146.660486] ? lock_downgrade+0x4fb/0x560 [ 1146.664643] ? security_file_ioctl+0x7c/0xb0 [ 1146.669034] SyS_ioctl+0x7e/0xb0 [ 1146.672493] ? do_vfs_ioctl+0x1030/0x1030 [ 1146.676641] do_syscall_64+0x19b/0x4b0 [ 1146.680589] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.685778] RIP: 0033:0x441359 [ 1146.688948] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1146.696798] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441359 [ 1146.704098] RDX: 0000000000441359 RSI: 0000000000004c82 RDI: 0000000000000003 [ 1146.711413] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1146.718685] R10: 0000000002066880 R11: 0000000000000213 R12: 0000000000402190 [ 1146.725998] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1146.733418] INFO: task syz-executor071:2072 blocked for more than 140 seconds. [ 1146.740812] Not tainted 4.14.67+ #1 [ 1146.744960] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.753038] syz-executor071 D29120 2072 2065 0x00000004 [ 1146.758673] Call Trace: [ 1146.761321] ? __schedule+0x729/0x1ed0 [ 1146.765218] ? __sched_text_start+0x8/0x8 [ 1146.769350] ? lock_downgrade+0x560/0x560 [ 1146.773563] ? lock_acquire+0x10f/0x380 [ 1146.777535] ? __mutex_lock+0x1bc/0x1480 [ 1146.781646] schedule+0x7f/0x1b0 [ 1146.785015] schedule_preempt_disabled+0x13/0x20 [ 1146.789752] __mutex_lock+0x521/0x1480 [ 1146.793676] ? loop_control_ioctl+0x71/0x310 [ 1146.798086] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1146.803583] ? avc_ss_reset+0x100/0x100 [ 1146.807562] ? add_mm_counter_fast+0xb0/0xb0 [ 1146.812017] ? __lock_acquire+0x619/0x4320 [ 1146.816389] ? do_wp_page+0x254/0x1880 [ 1146.820330] ? loop_control_ioctl+0x71/0x310 [ 1146.824739] ? trace_hardirqs_on+0x10/0x10 [ 1146.828953] loop_control_ioctl+0x71/0x310 [ 1146.833240] ? loop_probe+0x180/0x180 [ 1146.837045] ? __handle_mm_fault+0x657/0x23a0 [ 1146.841574] ? loop_probe+0x180/0x180 [ 1146.845375] do_vfs_ioctl+0x1a0/0x1030 [ 1146.849243] ? ioctl_preallocate+0x1d0/0x1d0 [ 1146.853700] ? selinux_parse_skb.constprop.42+0x1a90/0x1a90 [ 1146.859531] ? __do_page_fault+0x485/0xb60 [ 1146.863819] ? lock_downgrade+0x4fb/0x560 [ 1146.867982] ? security_file_ioctl+0x7c/0xb0 [ 1146.872496] SyS_ioctl+0x7e/0xb0 [ 1146.875865] ? do_vfs_ioctl+0x1030/0x1030 [ 1146.879992] do_syscall_64+0x19b/0x4b0 [ 1146.883926] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.889109] RIP: 0033:0x441359 [ 1146.892320] RSP: 002b:00007ffe2817f8a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 1146.900048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441359 [ 1146.907305] RDX: 0000000000441359 RSI: 0000000000004c82 RDI: 0000000000000003 [ 1146.914628] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 1146.921915] R10: 0000000002066880 R11: 0000000000000213 R12: 0000000000402190 [ 1146.929164] R13: 0000000000402220 R14: 0000000000000000 R15: 0000000000000000 [ 1146.936511] INFO: task blkid:2077 blocked for more than 140 seconds. [ 1146.943044] Not tainted 4.14.67+ #1 [ 1146.947172] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.955202] blkid D28280 2077 2073 0x00000004 [ 1146.960870] Call Trace: [ 1146.963448] ? __schedule+0x729/0x1ed0 [ 1146.967327] ? __sched_text_start+0x8/0x8 [ 1146.971541] ? lock_downgrade+0x560/0x560 [ 1146.975686] ? lock_acquire+0x10f/0x380 [ 1146.979642] ? __mutex_lock+0x1bc/0x1480 [ 1146.983762] schedule+0x7f/0x1b0 [ 1146.987125] schedule_preempt_disabled+0x13/0x20 [ 1146.991938] __mutex_lock+0x521/0x1480 [ 1146.995825] ? __mutex_lock+0x6f4/0x1480 [ 1146.999864] ? lo_open+0x17/0xa0 [ 1147.003385] ? blkdev_ioctl+0x17d0/0x18c0 [ 1147.007533] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 1147.013047] ? refcount_inc_not_zero+0x6b/0xb0 [ 1147.017633] ? disk_get_part+0x9a/0x140 [ 1147.021655] ? refcount_inc_not_zero+0x6b/0xb0 [ 1147.026237] ? check_preemption_disabled+0x34/0x160 [ 1147.031298] ? loop_unregister_transfer+0x90/0x90 [ 1147.036135] ? lo_open+0x17/0xa0 [ 1147.039481] lo_open+0x17/0xa0 [ 1147.042706] __blkdev_get+0x267/0xe50 [ 1147.046507] ? __blkdev_put+0x6e0/0x6e0 [ 1147.050505] ? check_preemption_disabled+0x34/0x160 [ 1147.055515] ? fsnotify+0x639/0x12d0 [ 1147.059209] blkdev_get+0x97/0x8c0 [ 1147.062801] ? bd_may_claim+0xe0/0xe0 [ 1147.066598] ? bd_acquire+0x171/0x2c0 [ 1147.070436] ? lock_downgrade+0x560/0x560 [ 1147.074589] ? lock_acquire+0x10f/0x380 [ 1147.078540] ? bd_acquire+0x21/0x2c0 [ 1147.082294] blkdev_open+0x1bd/0x240 [ 1147.086070] ? security_file_open+0x88/0x190 [ 1147.090528] do_dentry_open+0x426/0xda0 [ 1147.094499] ? bd_acquire+0x2c0/0x2c0 [ 1147.098292] vfs_open+0x11c/0x210 [ 1147.101798] path_openat+0x4eb/0x23a0 [ 1147.105653] ? path_mountpoint+0x9a0/0x9a0 [ 1147.109874] ? kasan_kmalloc.part.1+0x4f/0xd0 [ 1147.114419] ? trace_hardirqs_on+0x10/0x10 [ 1147.118662] do_filp_open+0x197/0x270 [ 1147.122610] ? may_open_dev+0xd0/0xd0 [ 1147.126425] ? _raw_spin_unlock+0x29/0x40 [ 1147.130621] do_sys_open+0x2ef/0x580 [ 1147.134338] ? filp_open+0x60/0x60 [ 1147.137880] ? up_read+0x17/0x30 [ 1147.141293] ? __do_page_fault+0x64c/0xb60 [ 1147.145543] ? do_syscall_64+0x43/0x4b0 [ 1147.149497] ? do_sys_open+0x580/0x580 [ 1147.153429] do_syscall_64+0x19b/0x4b0 [ 1147.157321] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1147.162549] RIP: 0033:0x7f9a3e302120 [ 1147.166303] RSP: 002b:00007fffa8496548 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1147.174065] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a3e302120 [ 1147.181378] RDX: 00007fffa8496f34 RSI: 0000000000000000 RDI: 00007fffa8496f34 [ 1147.188650] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1147.195993] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000024fd030 [ 1147.203320] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1147.210654] [ 1147.210654] Showing all locks held in the system: [ 1147.216973] 1 lock held by khungtaskd/23: [ 1147.221153] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f [ 1147.230297] 1 lock held by rsyslogd/1799: [ 1147.234422] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa2/0xc0 [ 1147.242770] 2 locks held by getty/1895: [ 1147.246733] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 [ 1147.255801] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x15e0 [ 1147.265166] 2 locks held by syz-executor071/2056: [ 1147.269992] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.278580] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.286738] 2 locks held by syz-executor071/2058: [ 1147.291620] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1147.300800] #1: (&lo->lo_ctl_mutex#2){+.+.}, at: [] loop_control_ioctl+0x180/0x310 [ 1147.310311] 2 locks held by syz-executor071/2059: [ 1147.315146] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x85/0x17d0 [ 1147.323804] #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x18/0x30 [ 1147.332805] 2 locks held by blkid/2060: [ 1147.336760] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.345444] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.353567] 1 lock held by syz-executor071/2068: [ 1147.358304] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1147.367495] 1 lock held by syz-executor071/2069: [ 1147.372284] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.380865] 1 lock held by syz-executor071/2070: [ 1147.385700] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1147.394900] 1 lock held by syz-executor071/2071: [ 1147.399655] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1147.408851] 1 lock held by syz-executor071/2072: [ 1147.413630] #0: (loop_index_mutex){+.+.}, at: [] loop_control_ioctl+0x71/0x310 [ 1147.422808] 2 locks held by blkid/2077: [ 1147.426776] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.435345] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.443475] 2 locks held by blkid/2078: [ 1147.447434] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.456040] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.464154] 2 locks held by blkid/2079: [ 1147.468125] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.476675] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.484798] 2 locks held by blkid/2080: [ 1147.488756] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.497312] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.505429] 2 locks held by blkid/2081: [ 1147.509384] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.518085] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.526208] 2 locks held by blkid/2085: [ 1147.530231] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xe50 [ 1147.538808] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x17/0xa0 [ 1147.546957] [ 1147.548580] ============================================= [ 1147.548580] [ 1147.555631] NMI backtrace for cpu 0 [ 1147.559253] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.67+ #1 [ 1147.565631] Call Trace: [ 1147.568307] dump_stack+0xb9/0x11b [ 1147.571834] nmi_cpu_backtrace.cold.0+0x18/0x8e [ 1147.576486] ? check_preemption_disabled+0x34/0x160 [ 1147.581540] ? irq_force_complete_move.cold.3+0x64/0x64 [ 1147.586901] nmi_trigger_cpumask_backtrace+0x121/0x146 [ 1147.592235] watchdog+0x574/0xa70 [ 1147.595689] ? reset_hung_task_detector+0x10/0x10 [ 1147.600571] kthread+0x348/0x420 [ 1147.603930] ? kthread_create_on_node+0xe0/0xe0 [ 1147.608585] ret_from_fork+0x3a/0x50 [ 1147.612492] Sending NMI from CPU 0 to CPUs 1: [ 1147.617121] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8b240572 [ 1147.618092] Kernel panic - not syncing: hung_task: blocked tasks [ 1147.618101] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.67+ #1 [ 1147.618104] Call Trace: [ 1147.618121] dump_stack+0xb9/0x11b [ 1147.618169] panic+0x1bf/0x3a4 [ 1147.618179] ? add_taint.cold.4+0x16/0x16 [ 1147.618192] ? printk_safe_flush+0xb6/0x110 [ 1147.618212] watchdog+0x585/0xa70 [ 1147.618229] ? reset_hung_task_detector+0x10/0x10 [ 1147.618237] kthread+0x348/0x420 [ 1147.618245] ? kthread_create_on_node+0xe0/0xe0 [ 1147.618256] ret_from_fork+0x3a/0x50 [ 1147.674877] Dumping ftrace buffer: [ 1147.678487] (ftrace buffer empty) [ 1147.682180] Kernel Offset: 0x8a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 1147.693000] Rebooting in 86400 seconds..