Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. [ 661.008170] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program [ 661.108523] audit: type=1400 audit(1568849111.248:8): avc: denied { map } for pid=1889 comm="syz-executor015" path="/root/syz-executor015546883" dev="sda1" ino=15946 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 858.090261] INFO: task syz-executor015:1891 blocked for more than 140 seconds. [ 858.097799] Not tainted 4.14.144+ #0 [ 858.103233] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.111337] syz-executor015 D29168 1891 1889 0x00000000 [ 858.117033] Call Trace: [ 858.119815] ? __schedule+0x88c/0x1f80 [ 858.123952] ? __sched_text_start+0x8/0x8 [ 858.128173] ? lock_downgrade+0x5d0/0x5d0 [ 858.132518] ? lock_acquire+0x12b/0x360 [ 858.136507] ? __mutex_lock+0x2dc/0x13e0 [ 858.140736] schedule+0x92/0x1c0 [ 858.144120] schedule_preempt_disabled+0x13/0x20 [ 858.148859] __mutex_lock+0x595/0x13e0 [ 858.153039] ? lo_open+0x19/0xb0 [ 858.156442] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 858.162091] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 858.167563] ? lock_downgrade+0x5d0/0x5d0 [ 858.172010] ? check_preemption_disabled+0x35/0x1f0 [ 858.177051] ? lo_compat_ioctl+0x160/0x160 [ 858.181458] ? lo_open+0x19/0xb0 [ 858.184815] lo_open+0x19/0xb0 [ 858.188154] __blkdev_get+0x267/0xf90 [ 858.192184] ? __blkdev_put+0x6d0/0x6d0 [ 858.196221] ? fsnotify+0x8b0/0x1150 [ 858.199969] blkdev_get+0x97/0x8b0 [ 858.203737] ? bd_acquire+0x171/0x2c0 [ 858.207545] ? bd_may_claim+0xd0/0xd0 [ 858.211590] ? lock_downgrade+0x5d0/0x5d0 [ 858.215744] ? lock_acquire+0x12b/0x360 [ 858.219716] ? bd_acquire+0x21/0x2c0 [ 858.223702] ? do_raw_spin_unlock+0x50/0x220 [ 858.228122] blkdev_open+0x1cc/0x250 [ 858.232088] ? security_file_open+0x88/0x190 [ 858.236559] do_dentry_open+0x44e/0xe20 [ 858.240718] ? bd_acquire+0x2c0/0x2c0 [ 858.244564] vfs_open+0x105/0x230 [ 858.248024] path_openat+0xb6c/0x2be0 [ 858.252050] ? path_mountpoint+0x9a0/0x9a0 [ 858.256360] ? trace_hardirqs_on+0x10/0x10 [ 858.260843] ? lock_downgrade+0x5d0/0x5d0 [ 858.265014] ? lock_acquire+0x12b/0x360 [ 858.269006] do_filp_open+0x1a1/0x280 [ 858.273037] ? may_open_dev+0xe0/0xe0 [ 858.276873] ? lock_downgrade+0x5d0/0x5d0 [ 858.281210] ? lock_acquire+0x12b/0x360 [ 858.285264] ? __alloc_fd+0x3f/0x490 [ 858.289139] ? do_raw_spin_unlock+0x50/0x220 [ 858.293797] ? _raw_spin_unlock+0x29/0x40 [ 858.297964] ? __alloc_fd+0x1bf/0x490 [ 858.301964] do_sys_open+0x2ca/0x590 [ 858.305677] ? filp_open+0x60/0x60 [ 858.309272] ? do_clock_gettime+0xd0/0xd0 [ 858.313656] ? do_syscall_64+0x43/0x520 [ 858.317635] ? do_sys_open+0x590/0x590 [ 858.321846] do_syscall_64+0x19b/0x520 [ 858.326097] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 858.331615] RIP: 0033:0x4013e0 [ 858.335097] RSP: 002b:00007fff99fccdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 858.343100] RAX: ffffffffffffffda RBX: 0000000000000782 RCX: 00000000004013e0 [ 858.350408] RDX: 00007fff99fcce8a RSI: 0000000000000002 RDI: 00007fff99fcce80 [ 858.357664] RBP: 00000000000a1905 R08: 0000000000000000 R09: 000000000000000a [ 858.365136] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000402680 [ 858.372438] R13: 0000000000402710 R14: 0000000000000000 R15: 0000000000000000 [ 858.379756] INFO: task syz-executor015:1893 blocked for more than 140 seconds. [ 858.387358] Not tainted 4.14.144+ #0 [ 858.391836] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.399914] syz-executor015 D28512 1893 1889 0x00000000 [ 858.405920] Call Trace: [ 858.408534] ? __schedule+0x88c/0x1f80 [ 858.412600] ? __sched_text_start+0x8/0x8 [ 858.416756] ? lock_downgrade+0x5d0/0x5d0 [ 858.421131] ? lock_acquire+0x12b/0x360 [ 858.425119] ? __mutex_lock+0x2dc/0x13e0 [ 858.429181] schedule+0x92/0x1c0 [ 858.432756] schedule_preempt_disabled+0x13/0x20 [ 858.437519] __mutex_lock+0x595/0x13e0 [ 858.441579] ? lo_open+0x19/0xb0 [ 858.444951] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 858.450568] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 858.456129] ? lock_downgrade+0x5d0/0x5d0 [ 858.460445] ? check_preemption_disabled+0x35/0x1f0 [ 858.465465] ? lo_compat_ioctl+0x160/0x160 [ 858.469681] ? lo_open+0x19/0xb0 [ 858.473215] lo_open+0x19/0xb0 [ 858.476410] __blkdev_get+0x267/0xf90 [ 858.480375] ? __blkdev_put+0x6d0/0x6d0 [ 858.484357] ? fsnotify+0x8b0/0x1150 [ 858.488060] blkdev_get+0x97/0x8b0 [ 858.491790] ? bd_acquire+0x171/0x2c0 [ 858.495590] ? bd_may_claim+0xd0/0xd0 [ 858.499394] ? lock_downgrade+0x5d0/0x5d0 [ 858.503719] ? lock_acquire+0x12b/0x360 [ 858.507704] ? bd_acquire+0x21/0x2c0 [ 858.511559] ? do_raw_spin_unlock+0x50/0x220 [ 858.515982] blkdev_open+0x1cc/0x250 [ 858.519680] ? security_file_open+0x88/0x190 [ 858.524276] do_dentry_open+0x44e/0xe20 [ 858.528253] ? bd_acquire+0x2c0/0x2c0 [ 858.532297] vfs_open+0x105/0x230 [ 858.535756] path_openat+0xb6c/0x2be0 [ 858.539560] ? path_mountpoint+0x9a0/0x9a0 [ 858.543901] ? trace_hardirqs_on+0x10/0x10 [ 858.548208] ? lock_downgrade+0x5d0/0x5d0 [ 858.552451] ? lock_acquire+0x12b/0x360 [ 858.556441] do_filp_open+0x1a1/0x280 [ 858.560314] ? may_open_dev+0xe0/0xe0 [ 858.564138] ? lock_downgrade+0x5d0/0x5d0 [ 858.568270] ? lock_acquire+0x12b/0x360 [ 858.572296] ? __alloc_fd+0x3f/0x490 [ 858.576016] ? do_raw_spin_unlock+0x50/0x220 [ 858.580490] ? _raw_spin_unlock+0x29/0x40 [ 858.584872] ? __alloc_fd+0x1bf/0x490 [ 858.588695] do_sys_open+0x2ca/0x590 [ 858.592473] ? filp_open+0x60/0x60 [ 858.596023] ? do_clock_gettime+0xd0/0xd0 [ 858.600241] ? do_syscall_64+0x43/0x520 [ 858.604298] ? do_sys_open+0x590/0x590 [ 858.608177] do_syscall_64+0x19b/0x520 [ 858.612128] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 858.617317] RIP: 0033:0x4013e0 [ 858.620577] RSP: 002b:00007fff99fccdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 858.628304] RAX: ffffffffffffffda RBX: 0000000000000783 RCX: 00000000004013e0 [ 858.635800] RDX: 00007fff99fcce8a RSI: 0000000000000002 RDI: 00007fff99fcce80 [ 858.643172] RBP: 00000000000a1905 R08: 0000000000000000 R09: 000000000000000a [ 858.650841] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000402680 [ 858.658137] R13: 0000000000402710 R14: 0000000000000000 R15: 0000000000000000 [ 858.665572] INFO: task syz-executor015:1933 blocked for more than 140 seconds. [ 858.672997] Not tainted 4.14.144+ #0 [ 858.677234] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.685412] syz-executor015 D28176 1933 1895 0x00000004 [ 858.691114] Call Trace: [ 858.693699] ? __schedule+0x88c/0x1f80 [ 858.697581] ? __sched_text_start+0x8/0x8 [ 858.701773] ? lock_downgrade+0x5d0/0x5d0 [ 858.706222] ? lock_acquire+0x12b/0x360 [ 858.710282] ? __mutex_lock+0x2dc/0x13e0 [ 858.714347] schedule+0x92/0x1c0 [ 858.717695] schedule_preempt_disabled+0x13/0x20 [ 858.722541] __mutex_lock+0x595/0x13e0 [ 858.726508] ? blkdev_reread_part+0x1b/0x40 [ 858.731239] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 858.736997] ? trace_hardirqs_on_caller+0x37b/0x540 [ 858.742220] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 858.747377] ? __wake_up_common_lock+0xe0/0x170 [ 858.752146] ? blk_mq_unfreeze_queue+0x49/0x80 [ 858.756745] ? blkdev_reread_part+0x1b/0x40 [ 858.761109] blkdev_reread_part+0x1b/0x40 [ 858.765261] loop_reread_partitions+0x7f/0x90 [ 858.769738] loop_set_status+0xbff/0x11f0 [ 858.773987] loop_set_status64+0xa5/0x100 [ 858.778196] ? loop_set_status_old+0x2f0/0x2f0 [ 858.782840] ? lo_ioctl+0x86/0x1a30 [ 858.786491] lo_ioctl+0xd1/0x1a30 [ 858.789945] ? loop_clr_fd+0xad0/0xad0 [ 858.793890] blkdev_ioctl+0x8d0/0x1870 [ 858.797791] ? blkpg_ioctl+0x910/0x910 [ 858.801722] ? lock_downgrade+0x5d0/0x5d0 [ 858.805879] ? lock_acquire+0x12b/0x360 [ 858.809872] ? debug_check_no_obj_freed+0x148/0x5c0 [ 858.815013] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 858.820158] ? trace_hardirqs_on_caller+0x37b/0x540 [ 858.825170] block_ioctl+0xd9/0x120 [ 858.828778] ? blkdev_fallocate+0x3b0/0x3b0 [ 858.833137] do_vfs_ioctl+0xabe/0x1040 [ 858.837116] ? selinux_file_ioctl+0x426/0x590 [ 858.841661] ? selinux_file_ioctl+0x116/0x590 [ 858.846152] ? ioctl_preallocate+0x1e0/0x1e0 [ 858.850606] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 858.855925] ? rcu_read_lock_sched_held+0x10a/0x130 [ 858.860992] ? putname+0xcd/0x110 [ 858.864444] ? do_sys_open+0x255/0x590 [ 858.868659] ? filp_open+0x60/0x60 [ 858.872247] ? security_file_ioctl+0x7c/0xb0 [ 858.876652] SyS_ioctl+0x7f/0xb0 [ 858.880072] ? do_vfs_ioctl+0x1040/0x1040 [ 858.884322] do_syscall_64+0x19b/0x520 [ 858.888295] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 858.893531] RIP: 0033:0x441877 [ 858.896712] RSP: 002b:00007fff99fccb78 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 858.904724] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441877 [ 858.912025] RDX: 00007fff99fccc10 RSI: 0000000000004c04 RDI: 0000000000000005 [ 858.919297] RBP: 0000000000000004 R08: 0000000000000000 R09: 000000000000000a [ 858.926730] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000402680 [ 858.934059] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 858.941549] INFO: task syz-executor015:1934 blocked for more than 140 seconds. [ 858.948916] Not tainted 4.14.144+ #0 [ 858.953353] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.961360] syz-executor015 D28448 1934 1890 0x00000004 [ 858.967065] Call Trace: [ 858.969673] ? __schedule+0x88c/0x1f80 [ 858.973618] ? __sched_text_start+0x8/0x8 [ 858.977886] ? lock_downgrade+0x5d0/0x5d0 [ 858.982504] ? lock_acquire+0x12b/0x360 [ 858.986488] ? __mutex_lock+0x2dc/0x13e0 [ 858.990694] schedule+0x92/0x1c0 [ 858.994061] schedule_preempt_disabled+0x13/0x20 [ 858.998815] __mutex_lock+0x595/0x13e0 [ 859.002787] ? blkdev_reread_part+0x1b/0x40 [ 859.007213] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 859.012725] ? trace_hardirqs_on_caller+0x37b/0x540 [ 859.017744] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 859.022887] ? __wake_up_common_lock+0xe0/0x170 [ 859.027554] ? blk_mq_unfreeze_queue+0x49/0x80 [ 859.032295] ? blkdev_reread_part+0x1b/0x40 [ 859.036610] blkdev_reread_part+0x1b/0x40 [ 859.040811] loop_reread_partitions+0x7f/0x90 [ 859.045319] loop_set_status+0xbff/0x11f0 [ 859.049467] loop_set_status64+0xa5/0x100 [ 859.053691] ? loop_set_status_old+0x2f0/0x2f0 [ 859.058281] ? lo_ioctl+0x86/0x1a30 [ 859.061986] lo_ioctl+0xd1/0x1a30 [ 859.065445] ? loop_clr_fd+0xad0/0xad0 [ 859.069486] blkdev_ioctl+0x8d0/0x1870 [ 859.073410] ? blkpg_ioctl+0x910/0x910 [ 859.077298] ? lock_downgrade+0x5d0/0x5d0 [ 859.081570] ? lock_acquire+0x12b/0x360 [ 859.085596] ? debug_check_no_obj_freed+0x148/0x5c0 [ 859.090655] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 859.095756] ? trace_hardirqs_on_caller+0x37b/0x540 [ 859.100816] block_ioctl+0xd9/0x120 [ 859.104436] ? blkdev_fallocate+0x3b0/0x3b0 [ 859.108750] do_vfs_ioctl+0xabe/0x1040 [ 859.113251] ? selinux_file_ioctl+0x426/0x590 [ 859.117751] ? selinux_file_ioctl+0x116/0x590 [ 859.122284] ? ioctl_preallocate+0x1e0/0x1e0 [ 859.126700] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 859.132046] ? rcu_read_lock_sched_held+0x10a/0x130 [ 859.137076] ? putname+0xcd/0x110 [ 859.140822] ? do_sys_open+0x255/0x590 [ 859.144907] ? filp_open+0x60/0x60 [ 859.148499] ? security_file_ioctl+0x7c/0xb0 [ 859.153027] SyS_ioctl+0x7f/0xb0 [ 859.157095] ? do_vfs_ioctl+0x1040/0x1040 [ 859.161298] do_syscall_64+0x19b/0x520 [ 859.165194] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 859.170437] RIP: 0033:0x441877 [ 859.173619] RSP: 002b:00007fff99fccb78 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 859.181655] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441877 [ 859.189076] RDX: 00007fff99fccc10 RSI: 0000000000004c04 RDI: 0000000000000005 [ 859.196433] RBP: 0000000000000004 R08: 0000000000000000 R09: 000000000000000a [ 859.203928] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000402680 [ 859.211381] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 859.218885] INFO: task syz-executor015:1937 blocked for more than 140 seconds. [ 859.226369] Not tainted 4.14.144+ #0 [ 859.230753] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.238707] syz-executor015 D28224 1937 1892 0x00000004 [ 859.244419] Call Trace: [ 859.247014] ? __schedule+0x88c/0x1f80 [ 859.250960] ? __sched_text_start+0x8/0x8 [ 859.255106] ? lock_downgrade+0x5d0/0x5d0 [ 859.259235] ? lock_acquire+0x12b/0x360 [ 859.263280] ? __mutex_lock+0x2dc/0x13e0 [ 859.267350] schedule+0x92/0x1c0 [ 859.270769] schedule_preempt_disabled+0x13/0x20 [ 859.275523] __mutex_lock+0x595/0x13e0 [ 859.279402] ? blkdev_reread_part+0x1b/0x40 [ 859.283794] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 859.289309] ? trace_hardirqs_on_caller+0x37b/0x540 [ 859.294592] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 859.299699] ? __wake_up_common_lock+0xe0/0x170 [ 859.304439] ? blk_mq_unfreeze_queue+0x49/0x80 [ 859.309025] ? blkdev_reread_part+0x1b/0x40 [ 859.313393] blkdev_reread_part+0x1b/0x40 [ 859.317538] loop_reread_partitions+0x7f/0x90 [ 859.322118] loop_set_status+0xbff/0x11f0 [ 859.326274] loop_set_status64+0xa5/0x100 [ 859.330488] ? loop_set_status_old+0x2f0/0x2f0 [ 859.335060] ? lo_ioctl+0x86/0x1a30 [ 859.338686] lo_ioctl+0xd1/0x1a30 [ 859.342192] ? loop_clr_fd+0xad0/0xad0 [ 859.346082] blkdev_ioctl+0x8d0/0x1870 [ 859.349971] ? blkpg_ioctl+0x910/0x910 [ 859.353971] ? lock_downgrade+0x5d0/0x5d0 [ 859.358135] ? lock_acquire+0x12b/0x360 [ 859.362169] ? debug_check_no_obj_freed+0x148/0x5c0 [ 859.367205] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 859.372365] ? trace_hardirqs_on_caller+0x37b/0x540 [ 859.377387] block_ioctl+0xd9/0x120 [ 859.381060] ? blkdev_fallocate+0x3b0/0x3b0 [ 859.385376] do_vfs_ioctl+0xabe/0x1040 [ 859.389247] ? selinux_file_ioctl+0x426/0x590 [ 859.393795] ? selinux_file_ioctl+0x116/0x590 [ 859.398298] ? ioctl_preallocate+0x1e0/0x1e0 [ 859.402793] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 859.408102] ? rcu_read_lock_sched_held+0x10a/0x130 [ 859.413200] ? putname+0xcd/0x110 [ 859.416668] ? do_sys_open+0x255/0x590 [ 859.420593] ? filp_open+0x60/0x60 [ 859.424144] ? security_file_ioctl+0x7c/0xb0 [ 859.428543] SyS_ioctl+0x7f/0xb0 [ 859.431957] ? do_vfs_ioctl+0x1040/0x1040 [ 859.436160] do_syscall_64+0x19b/0x520 [ 859.440107] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 859.445296] RIP: 0033:0x441877 [ 859.448477] RSP: 002b:00007fff99fccb78 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 859.456235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441877 [ 859.463537] RDX: 00007fff99fccc10 RSI: 0000000000004c04 RDI: 0000000000000005 [ 859.470849] RBP: 0000000000000004 R08: 0000000000000000 R09: 000000000000000a [ 859.478217] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000402680 [ 859.485546] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 859.492872] INFO: task syz-executor015:1944 blocked for more than 140 seconds. [ 859.500264] Not tainted 4.14.144+ #0 [ 859.504501] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.512510] syz-executor015 D28624 1944 1894 0x00000004 [ 859.518170] Call Trace: [ 859.520822] ? __schedule+0x88c/0x1f80 [ 859.524711] ? __sched_text_start+0x8/0x8 [ 859.528846] ? lock_downgrade+0x5d0/0x5d0 [ 859.533032] ? lock_acquire+0x12b/0x360 [ 859.537001] ? __mutex_lock+0x6cb/0x13e0 [ 859.541157] schedule+0x92/0x1c0 [ 859.544524] schedule_preempt_disabled+0x13/0x20 [ 859.549289] __mutex_lock+0x595/0x13e0 [ 859.553565] ? loop_control_ioctl+0x183/0x310 [ 859.558169] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 859.563734] ? finish_task_switch+0x1d9/0x660 [ 859.568310] ? __radix_tree_lookup+0x180/0x220 [ 859.573085] ? finish_mkwrite_fault+0x4e0/0x4e0 [ 859.577777] ? loop_control_ioctl+0x183/0x310 [ 859.582378] loop_control_ioctl+0x183/0x310 [ 859.586711] ? loop_probe+0x180/0x180 [ 859.590578] ? loop_probe+0x180/0x180 [ 859.594380] do_vfs_ioctl+0xabe/0x1040 [ 859.598249] ? selinux_file_ioctl+0x426/0x590 [ 859.603466] ? selinux_file_ioctl+0x116/0x590 [ 859.607982] ? ioctl_preallocate+0x1e0/0x1e0 [ 859.612903] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 859.618342] ? __do_page_fault+0x49f/0xbb0 [ 859.622958] ? lock_downgrade+0x59b/0x5d0 [ 859.627219] ? security_file_ioctl+0x7c/0xb0 [ 859.632065] SyS_ioctl+0x7f/0xb0 [ 859.635431] ? do_vfs_ioctl+0x1040/0x1040 [ 859.639566] do_syscall_64+0x19b/0x520 [ 859.643624] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 859.648810] RIP: 0033:0x441969 [ 859.652121] RSP: 002b:00007fff99fccdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 859.659901] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441969 [ 859.667429] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 859.675181] RBP: 00000000000a177e R08: 0000000000402710 R09: 0000000000402710 [ 859.682619] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402680 [ 859.689950] R13: 0000000000402710 R14: 0000000000000000 R15: 0000000000000000 [ 859.697485] INFO: task blkid:1946 blocked for more than 140 seconds. [ 859.704016] Not tainted 4.14.144+ #0 [ 859.708257] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.716423] blkid D28752 1946 1904 0x00000004 [ 859.722212] Call Trace: [ 859.724813] ? __schedule+0x88c/0x1f80 [ 859.728693] ? __sched_text_start+0x8/0x8 [ 859.733047] ? lock_downgrade+0x5d0/0x5d0 [ 859.737207] ? lock_acquire+0x12b/0x360 [ 859.741920] ? __mutex_lock+0x2dc/0x13e0 [ 859.745982] schedule+0x92/0x1c0 [ 859.750515] schedule_preempt_disabled+0x13/0x20 [ 859.755269] __mutex_lock+0x595/0x13e0 [ 859.759233] ? lo_open+0x19/0xb0 [ 859.762657] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 859.768106] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 859.774230] ? lock_downgrade+0x5d0/0x5d0 [ 859.778404] ? check_preemption_disabled+0x35/0x1f0 [ 859.783486] ? lo_compat_ioctl+0x160/0x160 [ 859.787732] ? lo_open+0x19/0xb0 [ 859.791148] lo_open+0x19/0xb0 [ 859.794358] __blkdev_get+0x267/0xf90 [ 859.798148] ? __blkdev_put+0x6d0/0x6d0 [ 859.802162] ? fsnotify+0x8b0/0x1150 [ 859.805898] blkdev_get+0x97/0x8b0 [ 859.809506] ? bd_acquire+0x171/0x2c0 [ 859.813351] ? bd_may_claim+0xd0/0xd0 [ 859.817153] ? lock_downgrade+0x5d0/0x5d0 [ 859.821336] ? lock_acquire+0x12b/0x360 [ 859.825670] ? bd_acquire+0x21/0x2c0 [ 859.829375] ? do_raw_spin_unlock+0x50/0x220 [ 859.833829] blkdev_open+0x1cc/0x250 [ 859.837544] ? security_file_open+0x88/0x190 [ 859.842177] do_dentry_open+0x44e/0xe20 [ 859.846175] ? bd_acquire+0x2c0/0x2c0 [ 859.850144] vfs_open+0x105/0x230 [ 859.853601] path_openat+0xb6c/0x2be0 [ 859.857391] ? path_mountpoint+0x9a0/0x9a0 [ 859.861691] ? trace_hardirqs_on+0x10/0x10 [ 859.865936] do_filp_open+0x1a1/0x280 [ 859.869784] ? may_open_dev+0xe0/0xe0 [ 859.874151] ? lock_downgrade+0x5d0/0x5d0 [ 859.878589] ? lock_acquire+0x12b/0x360 [ 859.882817] ? __alloc_fd+0x3f/0x490 [ 859.886564] ? do_raw_spin_unlock+0x50/0x220 [ 859.891040] ? _raw_spin_unlock+0x29/0x40 [ 859.895540] ? __alloc_fd+0x1bf/0x490 [ 859.899356] do_sys_open+0x2ca/0x590 [ 859.903159] ? filp_open+0x60/0x60 [ 859.906715] ? do_syscall_64+0x43/0x520 [ 859.910867] ? do_sys_open+0x590/0x590 [ 859.914817] do_syscall_64+0x19b/0x520 [ 859.918706] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 859.923976] RIP: 0033:0x7fc55dae4120 [ 859.927737] RSP: 002b:00007ffe29aeaa28 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 859.935538] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc55dae4120 [ 859.943278] RDX: 00007ffe29aecf41 RSI: 0000000000000000 RDI: 00007ffe29aecf41 [ 859.950576] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 859.957842] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000092f030 [ 859.965306] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 859.972904] INFO: task blkid:1947 blocked for more than 140 seconds. [ 859.979386] Not tainted 4.14.144+ #0 [ 859.983657] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.991654] blkid D28800 1947 1910 0x00000004 [ 859.997279] Call Trace: [ 859.999860] ? __schedule+0x88c/0x1f80 [ 860.007151] ? __sched_text_start+0x8/0x8 [ 860.011365] ? lock_downgrade+0x5d0/0x5d0 [ 860.015510] ? lock_acquire+0x12b/0x360 [ 860.019476] ? __mutex_lock+0x2dc/0x13e0 [ 860.023596] schedule+0x92/0x1c0 [ 860.026955] schedule_preempt_disabled+0x13/0x20 [ 860.032287] __mutex_lock+0x595/0x13e0 [ 860.036188] ? lo_open+0x19/0xb0 [ 860.039561] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 860.045061] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 860.050542] ? kobject_get_unless_zero+0x27/0x40 [ 860.055547] ? get_disk+0xd0/0xd0 [ 860.059324] ? exact_match+0x9/0x20 [ 860.063079] ? blkdev_ioctl+0x1870/0x1870 [ 860.067267] ? lo_compat_ioctl+0x160/0x160 [ 860.071563] ? lo_open+0x19/0xb0 [ 860.074921] lo_open+0x19/0xb0 [ 860.078096] __blkdev_get+0x963/0xf90 [ 860.082183] ? __blkdev_put+0x6d0/0x6d0 [ 860.086157] ? fsnotify+0x8b0/0x1150 [ 860.089859] blkdev_get+0x97/0x8b0 [ 860.093464] ? bd_acquire+0x171/0x2c0 [ 860.097254] ? bd_may_claim+0xd0/0xd0 [ 860.101087] ? lock_downgrade+0x5d0/0x5d0 [ 860.105225] ? lock_acquire+0x12b/0x360 [ 860.109179] ? bd_acquire+0x21/0x2c0 [ 860.113206] ? do_raw_spin_unlock+0x50/0x220 [ 860.117611] blkdev_open+0x1cc/0x250 [ 860.121363] ? security_file_open+0x88/0x190 [ 860.125779] do_dentry_open+0x44e/0xe20 [ 860.129756] ? bd_acquire+0x2c0/0x2c0 [ 860.134090] vfs_open+0x105/0x230 [ 860.137535] path_openat+0xb6c/0x2be0 [ 860.141542] ? path_mountpoint+0x9a0/0x9a0 [ 860.145945] ? trace_hardirqs_on+0x10/0x10 [ 860.150364] do_filp_open+0x1a1/0x280 [ 860.154171] ? may_open_dev+0xe0/0xe0 [ 860.157992] ? lock_downgrade+0x5d0/0x5d0 [ 860.162195] ? lock_acquire+0x12b/0x360 [ 860.166177] ? __alloc_fd+0x3f/0x490 [ 860.169877] ? do_raw_spin_unlock+0x50/0x220 [ 860.174347] ? _raw_spin_unlock+0x29/0x40 [ 860.178485] ? __alloc_fd+0x1bf/0x490 [ 860.182361] do_sys_open+0x2ca/0x590 [ 860.186071] ? filp_open+0x60/0x60 [ 860.189598] ? do_syscall_64+0x43/0x520 [ 860.193619] ? do_sys_open+0x590/0x590 [ 860.197501] do_syscall_64+0x19b/0x520 [ 860.201453] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 860.206652] RIP: 0033:0x7f8e7cc0b120 [ 860.210547] RSP: 002b:00007ffdb171e0e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 860.218259] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8e7cc0b120 [ 860.225571] RDX: 00007ffdb171ef41 RSI: 0000000000000000 RDI: 00007ffdb171ef41 [ 860.232887] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 860.240185] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000002441030 [ 860.248055] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 860.255407] INFO: task blkid:1948 blocked for more than 140 seconds. [ 860.262264] Not tainted 4.14.144+ #0 [ 860.266480] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 860.274476] blkid D27808 1948 1901 0x00000004 [ 860.280132] Call Trace: [ 860.282835] ? __schedule+0x88c/0x1f80 [ 860.286814] ? __sched_text_start+0x8/0x8 [ 860.291053] ? lock_downgrade+0x5d0/0x5d0 [ 860.295293] ? lock_acquire+0x12b/0x360 [ 860.299259] ? __mutex_lock+0x2dc/0x13e0 [ 860.303482] schedule+0x92/0x1c0 [ 860.307005] schedule_preempt_disabled+0x13/0x20 [ 860.311952] __mutex_lock+0x595/0x13e0 [ 860.315840] ? lo_open+0x19/0xb0 [ 860.319287] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 860.324785] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 860.330311] ? kobject_get_unless_zero+0x27/0x40 [ 860.335053] ? get_disk+0xd0/0xd0 [ 860.338706] ? exact_match+0x9/0x20 [ 860.342422] ? blkdev_ioctl+0x1870/0x1870 [ 860.346615] ? lo_compat_ioctl+0x160/0x160 [ 860.350919] ? lo_open+0x19/0xb0 [ 860.354293] lo_open+0x19/0xb0 [ 860.357512] __blkdev_get+0x963/0xf90 [ 860.361419] ? __blkdev_put+0x6d0/0x6d0 [ 860.365425] ? fsnotify+0x8b0/0x1150 [ 860.369125] blkdev_get+0x97/0x8b0 [ 860.372734] ? bd_acquire+0x171/0x2c0 [ 860.376542] ? bd_may_claim+0xd0/0xd0 [ 860.380447] ? lock_downgrade+0x5d0/0x5d0 [ 860.384608] ? lock_acquire+0x12b/0x360 [ 860.388683] ? bd_acquire+0x21/0x2c0 [ 860.392970] ? do_raw_spin_unlock+0x50/0x220 [ 860.397603] blkdev_open+0x1cc/0x250 [ 860.401375] ? security_file_open+0x88/0x190 [ 860.405785] do_dentry_open+0x44e/0xe20 [ 860.409776] ? bd_acquire+0x2c0/0x2c0 [ 860.413659] vfs_open+0x105/0x230 [ 860.417130] path_openat+0xb6c/0x2be0 [ 860.420986] ? path_mountpoint+0x9a0/0x9a0 [ 860.425230] ? trace_hardirqs_on+0x10/0x10 [ 860.429498] do_filp_open+0x1a1/0x280 [ 860.433365] ? may_open_dev+0xe0/0xe0 [ 860.437220] ? lock_downgrade+0x5d0/0x5d0 [ 860.441497] ? lock_acquire+0x12b/0x360 [ 860.445478] ? __alloc_fd+0x3f/0x490 [ 860.449174] ? do_raw_spin_unlock+0x50/0x220 [ 860.453627] ? _raw_spin_unlock+0x29/0x40 [ 860.457770] ? __alloc_fd+0x1bf/0x490 [ 860.461619] do_sys_open+0x2ca/0x590 [ 860.465328] ? filp_open+0x60/0x60 [ 860.468891] ? do_syscall_64+0x43/0x520 [ 860.472923] ? do_sys_open+0x590/0x590 [ 860.476806] do_syscall_64+0x19b/0x520 [ 860.480749] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 860.485944] RIP: 0033:0x7f2e916c4120 [ 860.489644] RSP: 002b:00007fff794033e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 860.497495] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2e916c4120 [ 860.504833] RDX: 00007fff79404f41 RSI: 0000000000000000 RDI: 00007fff79404f41 [ 860.512310] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 860.520601] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000002155030 [ 860.527860] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 860.535211] INFO: task blkid:1949 blocked for more than 140 seconds. [ 860.541727] Not tainted 4.14.144+ #0 [ 860.546031] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 860.554033] blkid D28352 1949 1903 0x00000004 [ 860.559886] Call Trace: [ 860.562578] ? __schedule+0x88c/0x1f80 [ 860.566470] ? __sched_text_start+0x8/0x8 [ 860.570671] ? lock_downgrade+0x5d0/0x5d0 [ 860.574849] ? lock_acquire+0x12b/0x360 [ 860.578842] ? __mutex_lock+0x2dc/0x13e0 [ 860.582973] schedule+0x92/0x1c0 [ 860.586424] schedule_preempt_disabled+0x13/0x20 [ 860.591224] __mutex_lock+0x595/0x13e0 [ 860.595114] ? __blkdev_get+0xf3/0xf90 [ 860.599606] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 860.605290] ? kobject_get_unless_zero+0x27/0x40 [ 860.610076] ? get_disk+0xd0/0xd0 [ 860.613513] ? exact_match+0x9/0x20 [ 860.617173] ? kobj_lookup+0x325/0x410 [ 860.621216] ? blkdev_ioctl+0x1870/0x1870 [ 860.625374] ? __blkdev_get+0xf3/0xf90 [ 860.629317] __blkdev_get+0xf3/0xf90 [ 860.633167] ? __blkdev_put+0x6d0/0x6d0 [ 860.637343] ? fsnotify+0x8b0/0x1150 [ 860.641147] blkdev_get+0x97/0x8b0 [ 860.644690] ? bd_acquire+0x171/0x2c0 [ 860.648473] ? bd_may_claim+0xd0/0xd0 [ 860.652844] ? lock_downgrade+0x5d0/0x5d0 [ 860.656991] ? lock_acquire+0x12b/0x360 [ 860.661029] ? bd_acquire+0x21/0x2c0 [ 860.664739] ? do_raw_spin_unlock+0x50/0x220 [ 860.669141] blkdev_open+0x1cc/0x250 [ 860.672932] ? security_file_open+0x88/0x190 [ 860.677702] do_dentry_open+0x44e/0xe20 [ 860.681753] ? bd_acquire+0x2c0/0x2c0 [ 860.685567] vfs_open+0x105/0x230 [ 860.689020] path_openat+0xb6c/0x2be0 [ 860.692913] ? path_mountpoint+0x9a0/0x9a0 [ 860.697178] ? trace_hardirqs_on+0x10/0x10 [ 860.701491] do_filp_open+0x1a1/0x280 [ 860.705408] ? may_open_dev+0xe0/0xe0 [ 860.709237] ? lock_downgrade+0x5d0/0x5d0 [ 860.713440] ? lock_acquire+0x12b/0x360 [ 860.717410] ? __alloc_fd+0x3f/0x490 [ 860.721213] ? do_raw_spin_unlock+0x50/0x220 [ 860.725628] ? _raw_spin_unlock+0x29/0x40 [ 860.729768] ? __alloc_fd+0x1bf/0x490 [ 860.733793] do_sys_open+0x2ca/0x590 [ 860.737503] ? filp_open+0x60/0x60 [ 860.741476] ? do_syscall_64+0x43/0x520 [ 860.745742] ? do_sys_open+0x590/0x590 [ 860.750186] do_syscall_64+0x19b/0x520 [ 860.754171] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 860.759351] RIP: 0033:0x7f5f53045120 [ 860.763232] RSP: 002b:00007ffd5403cf58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 860.771074] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5f53045120 [ 860.778395] RDX: 00007ffd5403df41 RSI: 0000000000000000 RDI: 00007ffd5403df41 [ 860.786220] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 860.793646] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000e12030 [ 860.801094] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 860.808604] [ 860.808604] Showing all locks held in the system: [ 860.815014] 1 lock held by khungtaskd/23: [ 860.819598] #0: (tasklist_lock){.+.+}, at: [< (ptrval)>] debug_show_all_locks+0x7c/0x21a [ 860.828719] 2 locks held by getty/1757: [ 860.832834] #0: (&tty->ldisc_sem){++++}, at: [< (ptrval)>] tty_ldisc_ref_wait+0x22/0x80 [ 860.841895] #1: (&ldata->atomic_read_lock){+.+.}, at: [< (ptrval)>] n_tty_read+0x1f7/0x1700 [ 860.851243] 2 locks held by syz-executor015/1891: [ 860.856090] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 860.864634] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 860.872769] 2 locks held by syz-executor015/1893: [ 860.877589] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 860.886470] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 860.894756] 2 locks held by syz-executor015/1933: [ 860.899587] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [< (ptrval)>] lo_ioctl+0x86/0x1a30 [ 860.908245] #1: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_reread_part+0x1b/0x40 [ 860.917273] 2 locks held by syz-executor015/1934: [ 860.922152] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [< (ptrval)>] lo_ioctl+0x86/0x1a30 [ 860.930800] #1: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_reread_part+0x1b/0x40 [ 860.942691] 2 locks held by syz-executor015/1937: [ 860.947541] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [< (ptrval)>] lo_ioctl+0x86/0x1a30 [ 860.956217] #1: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_reread_part+0x1b/0x40 [ 860.965204] 2 locks held by syz-executor015/1944: [ 860.970090] #0: (loop_index_mutex){+.+.}, at: [< (ptrval)>] loop_control_ioctl+0x71/0x310 [ 860.979208] #1: (&lo->lo_ctl_mutex#2){+.+.}, at: [< (ptrval)>] loop_control_ioctl+0x183/0x310 [ 860.988740] 2 locks held by blkid/1946: [ 860.992751] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.001315] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 861.009397] 2 locks held by blkid/1947: [ 861.013435] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.022521] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 861.030647] 2 locks held by blkid/1948: [ 861.034619] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.043220] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 861.052054] 1 lock held by blkid/1949: [ 861.055928] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.064738] 1 lock held by blkid/1951: [ 861.068708] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.077324] 2 locks held by blkid/1952: [ 861.081330] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 861.089870] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 861.098029] [ 861.099648] ============================================= [ 861.099648] [ 861.107063] NMI backtrace for cpu 1 [ 861.110992] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.144+ #0 [ 861.117479] Call Trace: [ 861.120134] dump_stack+0xca/0x134 [ 861.123684] ? irq_force_complete_move.cold+0x2c/0x7b [ 861.129736] nmi_cpu_backtrace.cold+0x47/0x86 [ 861.134669] ? irq_force_complete_move.cold+0x7b/0x7b [ 861.139861] nmi_trigger_cpumask_backtrace+0x119/0x147 [ 861.145205] watchdog+0x629/0xbe0 [ 861.148754] ? reset_hung_task_detector+0x30/0x30 [ 861.153663] kthread+0x31f/0x430 [ 861.157041] ? kthread_create_on_node+0xf0/0xf0 [ 861.161693] ret_from_fork+0x3a/0x50 [ 861.165511] Sending NMI from CPU 1 to CPUs 0: [ 861.170254] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff89a9b993 [ 861.171191] Kernel panic - not syncing: hung_task: blocked tasks [ 861.183936] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.144+ #0 [ 861.190411] Call Trace: [ 861.192993] dump_stack+0xca/0x134 [ 861.196566] panic+0x1ea/0x3d3 [ 861.199799] ? add_taint.cold+0x16/0x16 [ 861.203790] ? irq_force_complete_move.cold+0x7b/0x7b [ 861.208976] ? ___preempt_schedule+0x16/0x18 [ 861.213466] watchdog+0x63a/0xbe0 [ 861.216903] ? reset_hung_task_detector+0x30/0x30 [ 861.221726] kthread+0x31f/0x430 [ 861.225071] ? kthread_create_on_node+0xf0/0xf0 [ 861.229724] ret_from_fork+0x3a/0x50 [ 861.234864] Kernel Offset: 0x7200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 861.245709] Rebooting in 86400 seconds..