INIT: Id "2" respawning too fast: disabled for 5 minutes 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 "5" respawning too fast: disabled for 5 minutes [ 834.110846] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.1.61' (ECDSA) to the list of known hosts. [ 839.576952] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program [ 839.672952] audit: type=1400 audit(1572152294.028:7): avc: denied { map } for pid=1904 comm="syz-executor694" path="/root/syz-executor694670670" dev="sda1" ino=2339 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 executing program INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 1001.440205] INFO: task syz-executor694:1954 blocked for more than 140 seconds. [ 1001.450471] Not tainted 4.14.150+ #0 [ 1001.454688] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.462681] syz-executor694 D26960 1954 1913 0x00000004 [ 1001.468309] Call Trace: [ 1001.471043] ? __schedule+0x88c/0x1f80 [ 1001.475215] ? __sched_text_start+0x8/0x8 [ 1001.479393] ? lock_downgrade+0x630/0x630 [ 1001.483702] ? lock_acquire+0x12b/0x360 [ 1001.487681] ? __mutex_lock+0x2dc/0x13e0 [ 1001.491785] schedule+0x92/0x1c0 [ 1001.495140] schedule_preempt_disabled+0x13/0x20 [ 1001.499873] __mutex_lock+0x595/0x13e0 [ 1001.503885] ? loop_control_ioctl+0x183/0x310 [ 1001.508383] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1001.513927] ? putname+0xcd/0x110 [ 1001.517413] ? do_syscall_64+0x19b/0x520 [ 1001.521520] ? __radix_tree_lookup+0x180/0x220 [ 1001.526167] ? finish_mkwrite_fault+0x4e0/0x4e0 [ 1001.530894] ? loop_control_ioctl+0x183/0x310 [ 1001.535387] loop_control_ioctl+0x183/0x310 [ 1001.539703] ? loop_probe+0x180/0x180 [ 1001.543571] ? loop_probe+0x180/0x180 [ 1001.547436] do_vfs_ioctl+0xabe/0x1040 [ 1001.551463] ? selinux_file_ioctl+0x426/0x590 [ 1001.555963] ? selinux_file_ioctl+0x116/0x590 [ 1001.560550] ? ioctl_preallocate+0x1e0/0x1e0 [ 1001.564953] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 1001.570359] ? __do_page_fault+0x49f/0xbb0 [ 1001.574593] ? lock_downgrade+0x5eb/0x630 [ 1001.578982] ? security_file_ioctl+0x7c/0xb0 [ 1001.583479] SyS_ioctl+0x7f/0xb0 [ 1001.586862] ? do_vfs_ioctl+0x1040/0x1040 [ 1001.591062] do_syscall_64+0x19b/0x520 [ 1001.594949] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.600207] RIP: 0033:0x441869 [ 1001.603384] RSP: 002b:00007ffc3ac8f738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1001.611137] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441869 [ 1001.618406] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 1001.625927] RBP: 00000000000cd01c R08: 0000000000000001 R09: 0000000000000001 [ 1001.633249] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000402580 [ 1001.640553] R13: 0000000000402610 R14: 0000000000000000 R15: 0000000000000000 [ 1001.647870] INFO: task syz-executor694:1955 blocked for more than 140 seconds. [ 1001.655318] Not tainted 4.14.150+ #0 [ 1001.659638] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.667653] syz-executor694 D26960 1955 1912 0x00000004 [ 1001.673324] Call Trace: [ 1001.677818] ? __schedule+0x88c/0x1f80 [ 1001.681901] ? __sched_text_start+0x8/0x8 [ 1001.686187] ? lock_downgrade+0x630/0x630 [ 1001.690478] ? lock_acquire+0x12b/0x360 [ 1001.694448] ? __mutex_lock+0x2dc/0x13e0 [ 1001.698590] schedule+0x92/0x1c0 [ 1001.702019] schedule_preempt_disabled+0x13/0x20 [ 1001.706871] __mutex_lock+0x595/0x13e0 [ 1001.710951] ? lo_release+0x1b/0x1a0 [ 1001.714666] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1001.720177] ? lock_downgrade+0x630/0x630 [ 1001.724344] ? lo_open+0xb0/0xb0 [ 1001.727710] ? lo_release+0x1b/0x1a0 [ 1001.731457] lo_release+0x1b/0x1a0 [ 1001.734988] ? lo_open+0xb0/0xb0 [ 1001.738397] __blkdev_put+0x518/0x6d0 [ 1001.742247] ? bd_set_size+0xb0/0xb0 [ 1001.746059] ? blkdev_put+0x75/0x4c0 [ 1001.749753] ? blkdev_put+0x4c0/0x4c0 [ 1001.753590] blkdev_close+0x86/0xb0 [ 1001.757275] __fput+0x25e/0x710 [ 1001.760630] task_work_run+0x125/0x1a0 [ 1001.764516] exit_to_usermode_loop+0x13b/0x160 [ 1001.769081] do_syscall_64+0x3a3/0x520 [ 1001.773014] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.778212] RIP: 0033:0x4014a0 [ 1001.781446] RSP: 002b:00007ffc3ac8f4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1001.789153] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000004014a0 [ 1001.796499] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004 [ 1001.804084] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000c [ 1001.811447] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000000003 [ 1001.818725] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 1001.826065] INFO: task blkid:1961 blocked for more than 140 seconds. [ 1001.832580] Not tainted 4.14.150+ #0 [ 1001.836810] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1001.844795] blkid D28624 1961 1922 0x00000004 [ 1001.850456] Call Trace: [ 1001.853038] ? __schedule+0x88c/0x1f80 [ 1001.856913] ? lock_downgrade+0x630/0x630 [ 1001.861089] ? __sched_text_start+0x8/0x8 [ 1001.865244] ? lock_downgrade+0x630/0x630 [ 1001.869369] ? lock_acquire+0x12b/0x360 [ 1001.873390] ? __mutex_lock+0x2dc/0x13e0 [ 1001.877445] schedule+0x92/0x1c0 [ 1001.880862] schedule_preempt_disabled+0x13/0x20 [ 1001.885633] __mutex_lock+0x595/0x13e0 [ 1001.889520] ? blkdev_put+0x27/0x4c0 [ 1001.893275] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1001.898784] ? fsnotify+0x8b0/0x1150 [ 1001.902528] ? trace_hardirqs_on+0x10/0x10 [ 1001.906771] ? vfs_lock_file+0x190/0x190 [ 1001.910871] ? __fsnotify_inode_delete+0x20/0x20 [ 1001.915624] ? __fsnotify_update_child_dentry_flags.part.0+0x2e0/0x2e0 [ 1001.922336] ? blkdev_put+0x4c0/0x4c0 [ 1001.926135] ? blkdev_put+0x27/0x4c0 [ 1001.929832] blkdev_put+0x27/0x4c0 [ 1001.933404] ? blkdev_put+0x4c0/0x4c0 [ 1001.937364] blkdev_close+0x86/0xb0 [ 1001.941031] __fput+0x25e/0x710 [ 1001.944306] task_work_run+0x125/0x1a0 [ 1001.948174] exit_to_usermode_loop+0x13b/0x160 [ 1001.952786] do_syscall_64+0x3a3/0x520 [ 1001.956677] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1001.961922] RIP: 0033:0x7f5b6a2c92b0 [ 1001.965619] RSP: 002b:00007fffc6e4e518 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1001.973461] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5b6a2c92b0 [ 1001.980832] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 1001.988079] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 1001.995373] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000018be030 [ 1002.002835] R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 [ 1002.010164] INFO: task blkid:1964 blocked for more than 140 seconds. [ 1002.016729] Not tainted 4.14.150+ #0 [ 1002.020996] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.028968] blkid D28624 1964 1928 0x00000004 [ 1002.034661] Call Trace: [ 1002.037247] ? __schedule+0x88c/0x1f80 [ 1002.041173] ? __sched_text_start+0x8/0x8 [ 1002.045312] ? lock_downgrade+0x630/0x630 [ 1002.049438] ? lock_acquire+0x12b/0x360 [ 1002.053445] ? __mutex_lock+0x2dc/0x13e0 [ 1002.057497] schedule+0x92/0x1c0 [ 1002.060893] schedule_preempt_disabled+0x13/0x20 [ 1002.065669] __mutex_lock+0x595/0x13e0 [ 1002.069546] ? lo_release+0x1b/0x1a0 [ 1002.073471] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1002.078939] ? lock_downgrade+0x630/0x630 [ 1002.083382] ? lock_acquire+0x12b/0x360 [ 1002.087346] ? __blkdev_put+0x1cb/0x6d0 [ 1002.091366] ? lo_open+0xb0/0xb0 [ 1002.095177] ? lo_release+0x1b/0x1a0 [ 1002.098895] lo_release+0x1b/0x1a0 [ 1002.102479] ? lo_open+0xb0/0xb0 [ 1002.105834] __blkdev_put+0x518/0x6d0 [ 1002.109634] ? bd_set_size+0xb0/0xb0 [ 1002.113388] ? blkdev_put+0x75/0x4c0 [ 1002.117117] ? blkdev_put+0x4c0/0x4c0 [ 1002.120984] blkdev_close+0x86/0xb0 [ 1002.124683] __fput+0x25e/0x710 [ 1002.127967] task_work_run+0x125/0x1a0 [ 1002.131907] exit_to_usermode_loop+0x13b/0x160 [ 1002.136845] do_syscall_64+0x3a3/0x520 [ 1002.140788] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.145967] RIP: 0033:0x7f8af846e2b0 [ 1002.149658] RSP: 002b:00007ffd9f3c3d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1002.157434] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8af846e2b0 [ 1002.164740] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 1002.172074] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 1002.179342] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000211b030 [ 1002.186665] R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 [ 1002.193991] INFO: task syz-executor694:1965 blocked for more than 140 seconds. [ 1002.201376] Not tainted 4.14.150+ #0 [ 1002.205607] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.213610] syz-executor694 D28336 1965 1907 0x00000004 [ 1002.219252] Call Trace: [ 1002.221894] ? __schedule+0x88c/0x1f80 [ 1002.225781] ? __sched_text_start+0x8/0x8 [ 1002.229921] ? lock_downgrade+0x630/0x630 [ 1002.234105] ? lock_acquire+0x12b/0x360 [ 1002.238069] ? __mutex_lock+0x6cb/0x13e0 [ 1002.242164] schedule+0x92/0x1c0 [ 1002.245522] schedule_preempt_disabled+0x13/0x20 [ 1002.250309] __mutex_lock+0x595/0x13e0 [ 1002.254213] ? lo_open+0x19/0xb0 [ 1002.257564] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1002.263044] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1002.268506] ? lock_downgrade+0x630/0x630 [ 1002.272755] ? check_preemption_disabled+0x35/0x1f0 [ 1002.277786] ? lo_compat_ioctl+0x160/0x160 [ 1002.282078] ? lo_open+0x19/0xb0 [ 1002.285434] lo_open+0x19/0xb0 [ 1002.288668] __blkdev_get+0x267/0xf90 [ 1002.292594] ? __blkdev_put+0x6d0/0x6d0 [ 1002.296570] ? fsnotify+0x8b0/0x1150 [ 1002.300780] blkdev_get+0x97/0x8b0 [ 1002.304327] ? bd_acquire+0x171/0x2c0 [ 1002.308108] ? bd_may_claim+0xd0/0xd0 [ 1002.312024] ? lock_downgrade+0x630/0x630 [ 1002.316167] ? lock_acquire+0x12b/0x360 [ 1002.320194] ? bd_acquire+0x21/0x2c0 [ 1002.323905] ? do_raw_spin_unlock+0x50/0x220 [ 1002.328297] blkdev_open+0x1cc/0x250 [ 1002.332062] ? security_file_open+0x88/0x190 [ 1002.336487] do_dentry_open+0x44e/0xe20 [ 1002.340534] ? bd_acquire+0x2c0/0x2c0 [ 1002.344348] vfs_open+0x105/0x230 [ 1002.347828] path_openat+0xb6c/0x2be0 [ 1002.351690] ? path_mountpoint+0x9a0/0x9a0 [ 1002.355930] ? trace_hardirqs_on+0x10/0x10 [ 1002.360211] do_filp_open+0x1a1/0x280 [ 1002.364015] ? may_open_dev+0xe0/0xe0 [ 1002.367814] ? lock_downgrade+0x630/0x630 [ 1002.371996] ? lock_acquire+0x12b/0x360 [ 1002.376050] ? __alloc_fd+0x3f/0x490 [ 1002.379756] ? do_raw_spin_unlock+0x50/0x220 [ 1002.384286] ? _raw_spin_unlock+0x29/0x40 [ 1002.388424] ? __alloc_fd+0x1bf/0x490 [ 1002.392363] do_sys_open+0x2ca/0x590 [ 1002.396080] ? filp_open+0x60/0x60 [ 1002.399614] ? do_syscall_64+0x43/0x520 [ 1002.403622] ? do_sys_open+0x590/0x590 [ 1002.407503] do_syscall_64+0x19b/0x520 [ 1002.411441] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.416619] RIP: 0033:0x401500 [ 1002.419795] RSP: 002b:00007ffc3ac8f4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1002.427678] RAX: ffffffffffffffda RBX: 0000000020000168 RCX: 0000000000401500 [ 1002.435070] RDX: 00007ffc3ac8f68a RSI: 0000000000000002 RDI: 00007ffc3ac8f680 [ 1002.442447] RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a [ 1002.449732] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000003 [ 1002.457571] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 1002.465072] INFO: task blkid:1966 blocked for more than 140 seconds. [ 1002.471598] Not tainted 4.14.150+ #0 [ 1002.475927] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.484106] blkid D28896 1966 309 0x00000004 [ 1002.489829] Call Trace: [ 1002.492462] ? __schedule+0x88c/0x1f80 [ 1002.496347] ? __sched_text_start+0x8/0x8 [ 1002.500871] ? lock_downgrade+0x630/0x630 [ 1002.505011] ? lock_acquire+0x12b/0x360 [ 1002.508964] ? __mutex_lock+0x2dc/0x13e0 [ 1002.513065] schedule+0x92/0x1c0 [ 1002.516421] schedule_preempt_disabled+0x13/0x20 [ 1002.521205] __mutex_lock+0x595/0x13e0 [ 1002.525963] ? __blkdev_get+0xf3/0xf90 [ 1002.530329] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1002.535772] ? kobject_get_unless_zero+0x27/0x40 [ 1002.540630] ? get_disk+0xd0/0xd0 [ 1002.544078] ? exact_match+0x9/0x20 [ 1002.547722] ? kobj_lookup+0x325/0x410 [ 1002.551654] ? blkdev_ioctl+0x1870/0x1870 [ 1002.555810] ? __blkdev_get+0xf3/0xf90 [ 1002.559684] __blkdev_get+0xf3/0xf90 [ 1002.563515] ? __blkdev_put+0x6d0/0x6d0 [ 1002.567481] ? fsnotify+0x8b0/0x1150 [ 1002.571246] blkdev_get+0x97/0x8b0 [ 1002.574779] ? bd_acquire+0x171/0x2c0 [ 1002.578565] ? bd_may_claim+0xd0/0xd0 [ 1002.582402] ? lock_downgrade+0x630/0x630 [ 1002.586556] ? lock_acquire+0x12b/0x360 [ 1002.590560] ? bd_acquire+0x21/0x2c0 [ 1002.594267] ? do_raw_spin_unlock+0x50/0x220 [ 1002.598658] blkdev_open+0x1cc/0x250 [ 1002.602425] ? security_file_open+0x88/0x190 [ 1002.606830] do_dentry_open+0x44e/0xe20 [ 1002.610854] ? bd_acquire+0x2c0/0x2c0 [ 1002.614655] vfs_open+0x105/0x230 [ 1002.618091] path_openat+0xb6c/0x2be0 [ 1002.621932] ? path_mountpoint+0x9a0/0x9a0 [ 1002.626224] ? trace_hardirqs_on+0x10/0x10 [ 1002.630514] do_filp_open+0x1a1/0x280 [ 1002.634324] ? may_open_dev+0xe0/0xe0 [ 1002.638122] ? lock_downgrade+0x630/0x630 [ 1002.642348] ? lock_acquire+0x12b/0x360 [ 1002.646321] ? __alloc_fd+0x3f/0x490 [ 1002.650087] ? do_raw_spin_unlock+0x50/0x220 [ 1002.654495] ? _raw_spin_unlock+0x29/0x40 [ 1002.658652] ? __alloc_fd+0x1bf/0x490 [ 1002.662511] do_sys_open+0x2ca/0x590 [ 1002.666232] ? filp_open+0x60/0x60 [ 1002.669760] ? do_syscall_64+0x43/0x520 [ 1002.673785] ? do_sys_open+0x590/0x590 [ 1002.677669] do_syscall_64+0x19b/0x520 [ 1002.681617] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.686799] RIP: 0033:0x7f5db60c4120 [ 1002.690542] RSP: 002b:00007ffe177f4368 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1002.698243] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5db60c4120 [ 1002.705558] RDX: 00007ffe177f5f41 RSI: 0000000000000000 RDI: 00007ffe177f5f41 [ 1002.712849] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1002.720149] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000cd5030 [ 1002.727410] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1002.734738] INFO: task syz-executor694:1967 blocked for more than 140 seconds. [ 1002.742136] Not tainted 4.14.150+ #0 [ 1002.746358] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.754455] syz-executor694 D28624 1967 1905 0x00000004 [ 1002.760131] Call Trace: [ 1002.762710] ? __schedule+0x88c/0x1f80 [ 1002.766662] ? __sched_text_start+0x8/0x8 [ 1002.770842] ? lock_downgrade+0x630/0x630 [ 1002.774992] ? lock_acquire+0x12b/0x360 [ 1002.778955] ? __mutex_lock+0x2dc/0x13e0 [ 1002.783052] schedule+0x92/0x1c0 [ 1002.786592] schedule_preempt_disabled+0x13/0x20 [ 1002.791467] __mutex_lock+0x595/0x13e0 [ 1002.795359] ? blkdev_reread_part+0x1b/0x40 [ 1002.799664] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1002.805164] ? trace_hardirqs_on_caller+0x37b/0x540 [ 1002.810198] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1002.815435] ? __wake_up_common_lock+0xe0/0x170 [ 1002.820168] ? blk_mq_unfreeze_queue+0x49/0x80 [ 1002.825273] ? blkdev_reread_part+0x1b/0x40 [ 1002.829574] blkdev_reread_part+0x1b/0x40 [ 1002.833848] loop_reread_partitions+0x7f/0x90 [ 1002.838359] loop_set_status+0xbff/0x11f0 [ 1002.842559] loop_set_status64+0xa5/0x100 [ 1002.846712] ? loop_set_status_old+0x2f0/0x2f0 [ 1002.851351] ? lo_ioctl+0x86/0x1a30 [ 1002.854993] lo_ioctl+0xd1/0x1a30 [ 1002.858429] ? loop_clr_fd+0xad0/0xad0 [ 1002.862368] blkdev_ioctl+0x8d0/0x1870 [ 1002.866255] ? blkpg_ioctl+0x910/0x910 [ 1002.870194] ? lock_downgrade+0x630/0x630 [ 1002.874350] ? lock_acquire+0x12b/0x360 [ 1002.878355] ? debug_check_no_obj_freed+0x148/0x5c0 [ 1002.883420] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1002.888532] ? trace_hardirqs_on_caller+0x37b/0x540 [ 1002.893612] block_ioctl+0xd9/0x120 [ 1002.897238] ? blkdev_fallocate+0x3b0/0x3b0 [ 1002.901586] do_vfs_ioctl+0xabe/0x1040 [ 1002.905467] ? selinux_file_ioctl+0x426/0x590 [ 1002.909946] ? selinux_file_ioctl+0x116/0x590 [ 1002.914512] ? ioctl_preallocate+0x1e0/0x1e0 [ 1002.918913] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 1002.924288] ? rcu_read_lock_sched_held+0x10a/0x130 [ 1002.929427] ? putname+0xcd/0x110 [ 1002.932984] ? do_sys_open+0x255/0x590 [ 1002.936870] ? filp_open+0x60/0x60 [ 1002.940455] ? security_file_ioctl+0x7c/0xb0 [ 1002.944857] SyS_ioctl+0x7f/0xb0 [ 1002.948202] ? do_vfs_ioctl+0x1040/0x1040 [ 1002.952389] do_syscall_64+0x19b/0x520 [ 1002.956291] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1002.961513] RIP: 0033:0x441777 [ 1002.964694] RSP: 002b:00007ffc3ac8f4f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1002.972434] RAX: ffffffffffffffda RBX: 0000000020000168 RCX: 0000000000441777 [ 1002.979788] RDX: 00007ffc3ac8f590 RSI: 0000000000004c04 RDI: 0000000000000004 [ 1002.987103] RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a [ 1002.994426] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000003 [ 1003.001969] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 1003.009253] INFO: task syz-executor694:1968 blocked for more than 140 seconds. [ 1003.016652] Not tainted 4.14.150+ #0 [ 1003.020900] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.028861] syz-executor694 D28624 1968 1906 0x00000004 [ 1003.034523] Call Trace: [ 1003.037107] ? __schedule+0x88c/0x1f80 [ 1003.041033] ? __sched_text_start+0x8/0x8 [ 1003.045533] ? lock_downgrade+0x630/0x630 [ 1003.049681] ? lock_acquire+0x12b/0x360 [ 1003.053691] ? __mutex_lock+0x2dc/0x13e0 [ 1003.057753] schedule+0x92/0x1c0 [ 1003.061180] schedule_preempt_disabled+0x13/0x20 [ 1003.065945] __mutex_lock+0x595/0x13e0 [ 1003.069839] ? lo_open+0x19/0xb0 [ 1003.073253] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1003.078999] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1003.084553] ? lock_downgrade+0x630/0x630 [ 1003.088705] ? check_preemption_disabled+0x35/0x1f0 [ 1003.093779] ? lo_compat_ioctl+0x160/0x160 [ 1003.098008] ? lo_open+0x19/0xb0 [ 1003.101456] lo_open+0x19/0xb0 [ 1003.104658] __blkdev_get+0x267/0xf90 [ 1003.108452] ? __blkdev_put+0x6d0/0x6d0 [ 1003.112479] ? fsnotify+0x8b0/0x1150 [ 1003.116187] blkdev_get+0x97/0x8b0 [ 1003.119709] ? bd_acquire+0x171/0x2c0 [ 1003.123594] ? bd_may_claim+0xd0/0xd0 [ 1003.127401] ? lock_downgrade+0x630/0x630 [ 1003.131628] ? lock_acquire+0x12b/0x360 [ 1003.135592] ? bd_acquire+0x21/0x2c0 [ 1003.139289] ? do_raw_spin_unlock+0x50/0x220 [ 1003.143738] blkdev_open+0x1cc/0x250 [ 1003.147495] ? security_file_open+0x88/0x190 [ 1003.151941] do_dentry_open+0x44e/0xe20 [ 1003.156603] ? bd_acquire+0x2c0/0x2c0 [ 1003.160447] vfs_open+0x105/0x230 [ 1003.163898] path_openat+0xb6c/0x2be0 [ 1003.167706] ? path_mountpoint+0x9a0/0x9a0 [ 1003.171992] ? trace_hardirqs_on+0x10/0x10 [ 1003.176250] do_filp_open+0x1a1/0x280 [ 1003.180101] ? may_open_dev+0xe0/0xe0 [ 1003.183913] ? lock_downgrade+0x630/0x630 [ 1003.188040] ? lock_acquire+0x12b/0x360 [ 1003.192148] ? __alloc_fd+0x3f/0x490 [ 1003.195859] ? do_raw_spin_unlock+0x50/0x220 [ 1003.200327] ? _raw_spin_unlock+0x29/0x40 [ 1003.204471] ? __alloc_fd+0x1bf/0x490 [ 1003.208264] do_sys_open+0x2ca/0x590 [ 1003.212021] ? filp_open+0x60/0x60 [ 1003.215579] ? do_syscall_64+0x43/0x520 [ 1003.219707] ? do_sys_open+0x590/0x590 [ 1003.223636] do_syscall_64+0x19b/0x520 [ 1003.227539] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.232762] RIP: 0033:0x401500 [ 1003.235940] RSP: 002b:00007ffc3ac8f4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1003.243706] RAX: ffffffffffffffda RBX: 0000000020000168 RCX: 0000000000401500 [ 1003.251099] RDX: 00007ffc3ac8f68a RSI: 0000000000000002 RDI: 00007ffc3ac8f680 [ 1003.259233] RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a [ 1003.266551] R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000003 [ 1003.273863] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ 1003.281197] INFO: task syz-executor694:1969 blocked for more than 140 seconds. [ 1003.288557] Not tainted 4.14.150+ #0 [ 1003.293267] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.301254] syz-executor694 D27360 1969 1914 0x00000004 [ 1003.306954] Call Trace: [ 1003.309536] ? __schedule+0x88c/0x1f80 [ 1003.314071] ? __sched_text_start+0x8/0x8 [ 1003.318214] ? lock_downgrade+0x630/0x630 [ 1003.322386] ? lock_acquire+0x12b/0x360 [ 1003.326354] ? __mutex_lock+0x2dc/0x13e0 [ 1003.330455] schedule+0x92/0x1c0 [ 1003.333831] schedule_preempt_disabled+0x13/0x20 [ 1003.338580] __mutex_lock+0x595/0x13e0 [ 1003.342505] ? blkdev_reread_part+0x1b/0x40 [ 1003.346837] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1003.352325] ? trace_hardirqs_on_caller+0x37b/0x540 [ 1003.357374] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1003.362530] ? __wake_up_common_lock+0xe0/0x170 [ 1003.367204] ? blk_mq_unfreeze_queue+0x49/0x80 [ 1003.371941] ? blkdev_reread_part+0x1b/0x40 [ 1003.376254] blkdev_reread_part+0x1b/0x40 [ 1003.380436] loop_reread_partitions+0x7f/0x90 [ 1003.384921] loop_set_status+0xbff/0x11f0 [ 1003.389053] loop_set_status64+0xa5/0x100 [ 1003.393244] ? loop_set_status_old+0x2f0/0x2f0 [ 1003.397817] ? lo_ioctl+0x86/0x1a30 [ 1003.401636] lo_ioctl+0xd1/0x1a30 [ 1003.405235] ? loop_clr_fd+0xad0/0xad0 [ 1003.409112] blkdev_ioctl+0x8d0/0x1870 [ 1003.413079] ? blkpg_ioctl+0x910/0x910 [ 1003.416963] ? lock_downgrade+0x630/0x630 [ 1003.421144] ? lock_acquire+0x12b/0x360 [ 1003.425107] ? debug_check_no_obj_freed+0x148/0x5c0 [ 1003.430157] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1003.435275] ? trace_hardirqs_on_caller+0x37b/0x540 [ 1003.440332] block_ioctl+0xd9/0x120 [ 1003.443966] ? blkdev_fallocate+0x3b0/0x3b0 [ 1003.448267] do_vfs_ioctl+0xabe/0x1040 [ 1003.452186] ? selinux_file_ioctl+0x426/0x590 [ 1003.456667] ? selinux_file_ioctl+0x116/0x590 [ 1003.461270] ? ioctl_preallocate+0x1e0/0x1e0 [ 1003.465817] ? selinux_socket_sock_rcv_skb+0x610/0x610 [ 1003.471187] ? rcu_read_lock_sched_held+0x10a/0x130 [ 1003.476205] ? putname+0xcd/0x110 [ 1003.479660] ? do_sys_open+0x255/0x590 [ 1003.483629] ? filp_open+0x60/0x60 [ 1003.487175] ? security_file_ioctl+0x7c/0xb0 [ 1003.491631] SyS_ioctl+0x7f/0xb0 [ 1003.494995] ? do_vfs_ioctl+0x1040/0x1040 [ 1003.499193] do_syscall_64+0x19b/0x520 [ 1003.503215] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.508552] RIP: 0033:0x441777 [ 1003.511826] RSP: 002b:00007ffc3ac8f4f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 1003.519546] RAX: ffffffffffffffda RBX: 0000000020000168 RCX: 0000000000441777 [ 1003.527136] RDX: 00007ffc3ac8f590 RSI: 0000000000004c04 RDI: 0000000000000004 [ 1003.534444] RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000000a [ 1003.541734] R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000003 [ 1003.549006] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 1003.556337] INFO: task blkid:1972 blocked for more than 140 seconds. [ 1003.562860] Not tainted 4.14.150+ #0 [ 1003.567071] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.575330] blkid D27808 1972 1921 0x00000004 [ 1003.581003] Call Trace: [ 1003.583576] ? __schedule+0x88c/0x1f80 [ 1003.587446] ? __sched_text_start+0x8/0x8 [ 1003.591624] ? lock_downgrade+0x630/0x630 [ 1003.595760] ? lock_acquire+0x12b/0x360 [ 1003.599734] ? __mutex_lock+0x2dc/0x13e0 [ 1003.604017] schedule+0x92/0x1c0 [ 1003.607376] schedule_preempt_disabled+0x13/0x20 [ 1003.612165] __mutex_lock+0x595/0x13e0 [ 1003.616044] ? lo_open+0x19/0xb0 [ 1003.619395] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1003.624993] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1003.630474] ? kobject_get_unless_zero+0x27/0x40 [ 1003.635225] ? get_disk+0xd0/0xd0 [ 1003.638662] ? exact_match+0x9/0x20 [ 1003.642569] ? blkdev_ioctl+0x1870/0x1870 [ 1003.646735] ? lo_compat_ioctl+0x160/0x160 [ 1003.651021] ? lo_open+0x19/0xb0 [ 1003.654388] lo_open+0x19/0xb0 [ 1003.657576] __blkdev_get+0x963/0xf90 [ 1003.661455] ? __blkdev_put+0x6d0/0x6d0 [ 1003.665463] ? fsnotify+0x8b0/0x1150 [ 1003.669159] blkdev_get+0x97/0x8b0 [ 1003.672747] ? bd_acquire+0x171/0x2c0 [ 1003.677667] ? bd_may_claim+0xd0/0xd0 [ 1003.681502] ? lock_downgrade+0x630/0x630 [ 1003.685644] ? lock_acquire+0x12b/0x360 [ 1003.689604] ? bd_acquire+0x21/0x2c0 [ 1003.693368] ? do_raw_spin_unlock+0x50/0x220 [ 1003.697770] blkdev_open+0x1cc/0x250 [ 1003.701519] ? security_file_open+0x88/0x190 [ 1003.705930] do_dentry_open+0x44e/0xe20 [ 1003.709886] ? bd_acquire+0x2c0/0x2c0 [ 1003.713736] vfs_open+0x105/0x230 [ 1003.717183] path_openat+0xb6c/0x2be0 [ 1003.721024] ? path_mountpoint+0x9a0/0x9a0 [ 1003.725268] ? trace_hardirqs_on+0x10/0x10 [ 1003.729572] do_filp_open+0x1a1/0x280 [ 1003.733409] ? may_open_dev+0xe0/0xe0 [ 1003.737220] ? lock_downgrade+0x630/0x630 [ 1003.741399] ? lock_acquire+0x12b/0x360 [ 1003.745375] ? __alloc_fd+0x3f/0x490 [ 1003.749083] ? do_raw_spin_unlock+0x50/0x220 [ 1003.753553] ? _raw_spin_unlock+0x29/0x40 [ 1003.757719] ? __alloc_fd+0x1bf/0x490 [ 1003.761591] do_sys_open+0x2ca/0x590 [ 1003.765313] ? filp_open+0x60/0x60 [ 1003.768841] ? do_syscall_64+0x43/0x520 [ 1003.772872] ? do_sys_open+0x590/0x590 [ 1003.776753] do_syscall_64+0x19b/0x520 [ 1003.780699] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1003.785881] RIP: 0033:0x7f40b997b120 [ 1003.789667] RSP: 002b:00007ffeeaa75888 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1003.797423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f40b997b120 [ 1003.804723] RDX: 00007ffeeaa76f41 RSI: 0000000000000000 RDI: 00007ffeeaa76f41 [ 1003.812173] RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000 [ 1003.819442] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001230030 [ 1003.826867] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005 [ 1003.834675] [ 1003.834675] Showing all locks held in the system: [ 1003.841089] 1 lock held by khungtaskd/23: [ 1003.845302] #0: (tasklist_lock){.+.+}, at: [< (ptrval)>] debug_show_all_locks+0x7c/0x21a [ 1003.854393] 2 locks held by getty/1763: [ 1003.858449] #0: (&tty->ldisc_sem){++++}, at: [< (ptrval)>] tty_ldisc_ref_wait+0x22/0x80 [ 1003.867494] #1: (&ldata->atomic_read_lock){+.+.}, at: [< (ptrval)>] n_tty_read+0x1f7/0x1700 [ 1003.876844] 2 locks held by syz-executor694/1954: [ 1003.881721] #0: (loop_index_mutex){+.+.}, at: [< (ptrval)>] loop_control_ioctl+0x71/0x310 [ 1003.890867] #1: (&lo->lo_ctl_mutex#2){+.+.}, at: [< (ptrval)>] loop_control_ioctl+0x183/0x310 [ 1003.900373] 2 locks held by syz-executor694/1955: [ 1003.905211] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_put+0xb1/0x6d0 [ 1003.913764] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_release+0x1b/0x1a0 [ 1003.922206] 1 lock held by blkid/1961: [ 1003.926079] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_put+0x27/0x4c0 [ 1003.934597] 2 locks held by blkid/1964: [ 1003.938563] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_put+0xb1/0x6d0 [ 1003.947120] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_release+0x1b/0x1a0 [ 1003.955604] 2 locks held by syz-executor694/1965: [ 1003.960468] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1003.968969] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 1003.977121] 1 lock held by blkid/1966: [ 1003.981031] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1003.989532] 2 locks held by syz-executor694/1967: [ 1003.994412] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [< (ptrval)>] lo_ioctl+0x86/0x1a30 [ 1004.003125] #1: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_reread_part+0x1b/0x40 [ 1004.015861] 2 locks held by syz-executor694/1968: [ 1004.020724] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1004.029335] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 1004.037505] 2 locks held by syz-executor694/1969: [ 1004.042380] #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [< (ptrval)>] lo_ioctl+0x86/0x1a30 [ 1004.051021] #1: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] blkdev_reread_part+0x1b/0x40 [ 1004.060079] 2 locks held by blkid/1972: [ 1004.064040] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1004.072574] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 1004.080809] 1 lock held by blkid/1973: [ 1004.084697] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1004.093252] 2 locks held by blkid/1974: [ 1004.097226] #0: (&bdev->bd_mutex){+.+.}, at: [< (ptrval)>] __blkdev_get+0xf3/0xf90 [ 1004.105909] #1: (loop_index_mutex){+.+.}, at: [< (ptrval)>] lo_open+0x19/0xb0 [ 1004.114151] [ 1004.115763] ============================================= [ 1004.115763] [ 1004.124043] NMI backtrace for cpu 1 [ 1004.127671] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.150+ #0 [ 1004.134313] Call Trace: [ 1004.136946] dump_stack+0xca/0x134 [ 1004.140493] ? irq_force_complete_move+0x281/0x2e5 [ 1004.145413] nmi_cpu_backtrace.cold+0x47/0x86 [ 1004.149896] ? irq_force_complete_move.cold+0x7b/0x7b [ 1004.155063] nmi_trigger_cpumask_backtrace+0x119/0x147 [ 1004.160393] watchdog+0x629/0xbe0 [ 1004.163841] ? reset_hung_task_detector+0x30/0x30 [ 1004.168671] kthread+0x31f/0x430 [ 1004.172018] ? kthread_create_on_node+0xf0/0xf0 [ 1004.176667] ret_from_fork+0x3a/0x50 [ 1004.180452] Sending NMI from CPU 1 to CPUs 0: [ 1004.185000] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffffaa2a45f3 [ 1004.185943] Kernel panic - not syncing: hung_task: blocked tasks [ 1004.198332] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.150+ #0 [ 1004.205458] Call Trace: [ 1004.208049] dump_stack+0xca/0x134 [ 1004.211641] panic+0x1f1/0x3da [ 1004.214816] ? add_taint.cold+0x16/0x16 [ 1004.218781] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1004.223865] ? cpumask_next+0x1f/0x30 [ 1004.227676] ? printk_safe_flush+0xac/0x110 [ 1004.231990] watchdog+0x63a/0xbe0 [ 1004.235436] ? reset_hung_task_detector+0x30/0x30 [ 1004.240264] kthread+0x31f/0x430 [ 1004.243611] ? kthread_create_on_node+0xf0/0xf0 [ 1004.248306] ret_from_fork+0x3a/0x50 [ 1004.252672] Kernel Offset: 0x27a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 1004.263596] Rebooting in 86400 seconds..