Warning: Permanently added '10.128.1.53' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 898.982221] print_req_error: I/O error, dev loop3, sector 64 [ 898.990045] print_req_error: I/O error, dev loop3, sector 256 [ 898.996150] UDF-fs: error (device loop3): udf_read_tagged: read failed, block=256, location=256 [ 899.008211] print_req_error: I/O error, dev loop3, sector 512 [ 899.015174] UDF-fs: error (device loop3): udf_read_tagged: read failed, block=512, location=512 [ 899.030033] UDF-fs: warning (device loop3): udf_load_vrs: No anchor found [ 899.040246] UDF-fs: Scanning with blocksize 512 failed [ 899.046518] print_req_error: I/O error, dev loop3, sector 64 [ 1144.690645] INFO: task syz-executor165:7996 blocked for more than 140 seconds. [ 1144.698258] Not tainted 4.14.232-syzkaller #0 [ 1144.705826] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.714507] syz-executor165 D29920 7996 7986 0x00000004 [ 1144.720151] Call Trace: [ 1144.723751] __schedule+0x88b/0x1de0 [ 1144.727478] ? io_schedule_timeout+0x140/0x140 [ 1144.733193] ? lock_downgrade+0x740/0x740 [ 1144.737381] schedule+0x8d/0x1b0 [ 1144.741719] schedule_preempt_disabled+0xf/0x20 [ 1144.746481] __mutex_lock+0x669/0x1310 [ 1144.750372] ? mount_bdev+0x71/0x360 [ 1144.755510] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1144.761558] ? __blkdev_get+0x1090/0x1090 [ 1144.765719] ? mntput+0x5c/0x80 [ 1144.768991] ? lookup_bdev+0x8c/0x1c0 [ 1144.774103] ? bdev_read_only+0x6a/0x90 [ 1144.778086] mount_bdev+0x71/0x360 [ 1144.782498] ? udf_load_vrs+0xa90/0xa90 [ 1144.786474] mount_fs+0x92/0x2a0 [ 1144.789924] vfs_kern_mount.part.0+0x5b/0x470 [ 1144.795665] do_mount+0xe53/0x2a00 [ 1144.799210] ? lock_acquire+0x170/0x3f0 [ 1144.804062] ? lock_downgrade+0x740/0x740 [ 1144.808298] ? copy_mount_string+0x40/0x40 [ 1144.813431] ? __might_fault+0x177/0x1b0 [ 1144.817493] ? _copy_from_user+0x96/0x100 [ 1144.822517] ? copy_mount_options+0x1fa/0x2f0 [ 1144.827008] ? copy_mnt_ns+0xa30/0xa30 [ 1144.832349] SyS_mount+0xa8/0x120 [ 1144.835979] ? copy_mnt_ns+0xa30/0xa30 [ 1144.840029] do_syscall_64+0x1d5/0x640 [ 1144.845253] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.851152] RIP: 0033:0x44a689 [ 1144.854351] RSP: 002b:00007f60bab12208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1144.862984] RAX: ffffffffffffffda RBX: 00000000004cb408 RCX: 000000000044a689 [ 1144.870345] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1144.880885] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000 [ 1144.888168] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb40c [ 1144.897094] R13: 00007ffdbdfa017f R14: 00007f60bab12300 R15: 0000000000022000 [ 1144.905482] INFO: task syz-executor165:8032 blocked for more than 140 seconds. [ 1144.913474] Not tainted 4.14.232-syzkaller #0 [ 1144.918487] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.927490] syz-executor165 D29920 8032 7986 0x00000004 [ 1144.933741] Call Trace: [ 1144.936431] __schedule+0x88b/0x1de0 [ 1144.940146] ? io_schedule_timeout+0x140/0x140 [ 1144.946536] ? lock_downgrade+0x740/0x740 [ 1144.951293] schedule+0x8d/0x1b0 [ 1144.954660] schedule_preempt_disabled+0xf/0x20 [ 1144.959506] __mutex_lock+0x669/0x1310 [ 1144.965574] ? mount_bdev+0x71/0x360 [ 1144.969330] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1144.975813] ? __blkdev_get+0x1090/0x1090 [ 1144.980062] ? mntput+0x5c/0x80 [ 1144.984368] ? lookup_bdev+0x8c/0x1c0 [ 1144.988177] ? bdev_read_only+0x6a/0x90 [ 1144.993089] mount_bdev+0x71/0x360 [ 1144.996633] ? udf_load_vrs+0xa90/0xa90 [ 1145.002183] mount_fs+0x92/0x2a0 [ 1145.006098] vfs_kern_mount.part.0+0x5b/0x470 [ 1145.012018] do_mount+0xe53/0x2a00 [ 1145.015581] ? lock_acquire+0x170/0x3f0 [ 1145.019545] ? lock_downgrade+0x740/0x740 [ 1145.024963] ? copy_mount_string+0x40/0x40 [ 1145.029203] ? __might_fault+0x177/0x1b0 [ 1145.034217] ? _copy_from_user+0x96/0x100 [ 1145.038368] ? copy_mount_options+0x1fa/0x2f0 [ 1145.043938] ? copy_mnt_ns+0xa30/0xa30 [ 1145.047832] SyS_mount+0xa8/0x120 [ 1145.052393] ? copy_mnt_ns+0xa30/0xa30 [ 1145.056299] do_syscall_64+0x1d5/0x640 [ 1145.060183] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.067744] RIP: 0033:0x44a689 [ 1145.071554] RSP: 002b:00007f60baad0208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1145.079269] RAX: ffffffffffffffda RBX: 00000000004cb428 RCX: 000000000044a689 [ 1145.087623] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1145.096049] RBP: 00000000004cb420 R08: 0000000000000000 R09: 0000000000000000 [ 1145.103860] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb42c [ 1145.111688] R13: 00007ffdbdfa017f R14: 00007f60baad0300 R15: 0000000000022000 [ 1145.119011] INFO: task syz-executor165:7991 blocked for more than 140 seconds. [ 1145.127291] Not tainted 4.14.232-syzkaller #0 [ 1145.132837] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.141756] syz-executor165 D29920 7991 7984 0x00000004 [ 1145.147393] Call Trace: [ 1145.149978] __schedule+0x88b/0x1de0 [ 1145.154945] ? io_schedule_timeout+0x140/0x140 [ 1145.159526] ? mark_held_locks+0xa6/0xf0 [ 1145.164434] ? _raw_spin_unlock_irq+0x24/0x80 [ 1145.168929] ? rwsem_down_write_failed+0x33e/0x6d0 [ 1145.174744] schedule+0x8d/0x1b0 [ 1145.178115] rwsem_down_write_failed+0x343/0x6d0 [ 1145.183719] ? rwsem_down_read_failed_killable+0x520/0x520 [ 1145.189428] ? retint_kernel+0x2d/0x2d [ 1145.194257] ? lock_acquire+0x1ec/0x3f0 [ 1145.198234] call_rwsem_down_write_failed+0x13/0x20 [ 1145.204165] down_write+0x4f/0x90 [ 1145.207626] ? grab_super+0x55/0x140 [ 1145.212285] grab_super+0x55/0x140 [ 1145.215827] ? set_bdev_super+0x110/0x110 [ 1145.219979] sget_userns+0x2b1/0xc10 [ 1145.225547] ? set_bdev_super+0x110/0x110 [ 1145.229714] ? ns_test_super+0x50/0x50 [ 1145.234678] ? set_bdev_super+0x110/0x110 [ 1145.238826] ? ns_test_super+0x50/0x50 [ 1145.243600] sget+0xd1/0x110 [ 1145.246620] mount_bdev+0xcd/0x360 [ 1145.250149] ? udf_load_vrs+0xa90/0xa90 [ 1145.255397] mount_fs+0x92/0x2a0 [ 1145.258766] vfs_kern_mount.part.0+0x5b/0x470 [ 1145.265100] do_mount+0xe53/0x2a00 [ 1145.268648] ? lock_acquire+0x170/0x3f0 [ 1145.273517] ? lock_downgrade+0x740/0x740 [ 1145.277667] ? copy_mount_string+0x40/0x40 [ 1145.282760] ? __might_fault+0x177/0x1b0 [ 1145.286822] ? _copy_from_user+0x96/0x100 [ 1145.291990] ? copy_mount_options+0x1fa/0x2f0 [ 1145.296480] ? copy_mnt_ns+0xa30/0xa30 [ 1145.301216] SyS_mount+0xa8/0x120 [ 1145.304668] ? copy_mnt_ns+0xa30/0xa30 [ 1145.308548] do_syscall_64+0x1d5/0x640 [ 1145.313854] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.319067] RIP: 0033:0x44a689 [ 1145.323155] RSP: 002b:00007f60bab12208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1145.331557] RAX: ffffffffffffffda RBX: 00000000004cb408 RCX: 000000000044a689 [ 1145.339202] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1145.347431] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000 [ 1145.355897] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb40c [ 1145.363768] R13: 00007ffdbdfa017f R14: 00007f60bab12300 R15: 0000000000022000 [ 1145.371666] INFO: task syz-executor165:8029 blocked for more than 140 seconds. [ 1145.379038] Not tainted 4.14.232-syzkaller #0 [ 1145.384968] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.393485] syz-executor165 D29920 8029 7984 0x00000004 [ 1145.399679] Call Trace: [ 1145.403738] __schedule+0x88b/0x1de0 [ 1145.408245] ? io_schedule_timeout+0x140/0x140 [ 1145.413771] ? lock_downgrade+0x740/0x740 [ 1145.417921] schedule+0x8d/0x1b0 [ 1145.422160] schedule_preempt_disabled+0xf/0x20 [ 1145.426827] __mutex_lock+0x669/0x1310 [ 1145.431692] ? mount_bdev+0x71/0x360 [ 1145.435726] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.442567] ? __blkdev_get+0x1090/0x1090 [ 1145.446752] ? mntput+0x5c/0x80 [ 1145.450112] ? lookup_bdev+0x8c/0x1c0 [ 1145.456395] ? bdev_read_only+0x6a/0x90 [ 1145.460901] mount_bdev+0x71/0x360 [ 1145.468672] ? udf_load_vrs+0xa90/0xa90 [ 1145.474365] mount_fs+0x92/0x2a0 [ 1145.477737] vfs_kern_mount.part.0+0x5b/0x470 [ 1145.483779] do_mount+0xe53/0x2a00 [ 1145.487320] ? lock_acquire+0x170/0x3f0 [ 1145.492164] ? lock_downgrade+0x740/0x740 [ 1145.496313] ? copy_mount_string+0x40/0x40 [ 1145.502050] ? __might_fault+0x177/0x1b0 [ 1145.506138] ? _copy_from_user+0x96/0x100 [ 1145.510283] ? copy_mount_options+0x1fa/0x2f0 [ 1145.516033] ? copy_mnt_ns+0xa30/0xa30 [ 1145.520110] SyS_mount+0xa8/0x120 [ 1145.524477] ? copy_mnt_ns+0xa30/0xa30 [ 1145.528376] do_syscall_64+0x1d5/0x640 [ 1145.533207] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.538487] RIP: 0033:0x44a689 [ 1145.542529] RSP: 002b:00007f60baad0208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1145.551353] RAX: ffffffffffffffda RBX: 00000000004cb428 RCX: 000000000044a689 [ 1145.558630] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1145.566810] RBP: 00000000004cb420 R08: 0000000000000000 R09: 0000000000000000 [ 1145.574691] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb42c [ 1145.582483] R13: 00007ffdbdfa017f R14: 00007f60baad0300 R15: 0000000000022000 [ 1145.590180] INFO: task syz-executor165:8028 blocked for more than 140 seconds. [ 1145.598565] Not tainted 4.14.232-syzkaller #0 [ 1145.604142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.613693] syz-executor165 D29920 8028 7982 0x00000004 [ 1145.619333] Call Trace: [ 1145.622927] __schedule+0x88b/0x1de0 [ 1145.626652] ? io_schedule_timeout+0x140/0x140 [ 1145.632318] ? lock_downgrade+0x740/0x740 [ 1145.636472] schedule+0x8d/0x1b0 [ 1145.640255] schedule_preempt_disabled+0xf/0x20 [ 1145.646234] __mutex_lock+0x669/0x1310 [ 1145.650236] ? mount_bdev+0x71/0x360 [ 1145.656205] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.662246] ? __blkdev_get+0x1090/0x1090 [ 1145.666394] ? mntput+0x5c/0x80 [ 1145.669671] ? lookup_bdev+0x8c/0x1c0 [ 1145.674731] ? bdev_read_only+0x6a/0x90 [ 1145.678714] mount_bdev+0x71/0x360 [ 1145.683293] ? udf_load_vrs+0xa90/0xa90 [ 1145.687264] mount_fs+0x92/0x2a0 [ 1145.691503] vfs_kern_mount.part.0+0x5b/0x470 [ 1145.696007] do_mount+0xe53/0x2a00 [ 1145.699541] ? lock_acquire+0x170/0x3f0 [ 1145.704751] ? lock_downgrade+0x740/0x740 [ 1145.708903] ? copy_mount_string+0x40/0x40 [ 1145.714237] ? __might_fault+0x177/0x1b0 [ 1145.718329] ? _copy_from_user+0x96/0x100 [ 1145.723422] ? copy_mount_options+0x1fa/0x2f0 [ 1145.727916] ? copy_mnt_ns+0xa30/0xa30 [ 1145.732703] SyS_mount+0xa8/0x120 [ 1145.736154] ? copy_mnt_ns+0xa30/0xa30 [ 1145.740035] do_syscall_64+0x1d5/0x640 [ 1145.745723] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.751442] RIP: 0033:0x44a689 [ 1145.754714] RSP: 002b:00007f60baad0208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1145.763414] RAX: ffffffffffffffda RBX: 00000000004cb428 RCX: 000000000044a689 [ 1145.771328] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1145.778694] RBP: 00000000004cb420 R08: 0000000000000000 R09: 0000000000000000 [ 1145.786929] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb42c [ 1145.794750] R13: 00007ffdbdfa017f R14: 00007f60baad0300 R15: 0000000000022000 [ 1145.802619] INFO: task syz-executor165:8000 blocked for more than 140 seconds. [ 1145.809992] Not tainted 4.14.232-syzkaller #0 [ 1145.816168] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.824707] syz-executor165 D29920 8000 7981 0x00000004 [ 1145.831365] Call Trace: [ 1145.833960] __schedule+0x88b/0x1de0 [ 1145.837670] ? io_schedule_timeout+0x140/0x140 [ 1145.843501] ? lock_downgrade+0x740/0x740 [ 1145.848153] schedule+0x8d/0x1b0 [ 1145.853750] schedule_preempt_disabled+0xf/0x20 [ 1145.858712] __mutex_lock+0x669/0x1310 [ 1145.863596] ? mount_bdev+0x71/0x360 [ 1145.867319] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.874325] ? __blkdev_get+0x1090/0x1090 [ 1145.878476] ? mntput+0x5c/0x80 [ 1145.882660] ? lookup_bdev+0x8c/0x1c0 [ 1145.886476] ? bdev_read_only+0x6a/0x90 [ 1145.891381] mount_bdev+0x71/0x360 [ 1145.894925] ? udf_load_vrs+0xa90/0xa90 [ 1145.898893] mount_fs+0x92/0x2a0 [ 1145.903569] vfs_kern_mount.part.0+0x5b/0x470 [ 1145.908189] do_mount+0xe53/0x2a00 [ 1145.912752] ? lock_acquire+0x170/0x3f0 [ 1145.916735] ? lock_downgrade+0x740/0x740 [ 1145.921999] ? copy_mount_string+0x40/0x40 [ 1145.926241] ? __might_fault+0x177/0x1b0 [ 1145.931365] ? _copy_from_user+0x96/0x100 [ 1145.935519] ? copy_mount_options+0x1fa/0x2f0 [ 1145.940011] ? copy_mnt_ns+0xa30/0xa30 [ 1145.945207] SyS_mount+0xa8/0x120 [ 1145.948746] ? copy_mnt_ns+0xa30/0xa30 [ 1145.953507] do_syscall_64+0x1d5/0x640 [ 1145.957396] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1145.963517] RIP: 0033:0x44a689 [ 1145.966703] RSP: 002b:00007f60bab12208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1145.975402] RAX: ffffffffffffffda RBX: 00000000004cb408 RCX: 000000000044a689 [ 1145.983269] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1145.991097] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000 [ 1145.998366] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb40c [ 1146.007240] R13: 00007ffdbdfa017f R14: 00007f60bab12300 R15: 0000000000022000 [ 1146.015139] INFO: task syz-executor165:8033 blocked for more than 140 seconds. [ 1146.023092] Not tainted 4.14.232-syzkaller #0 [ 1146.028099] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.037047] syz-executor165 D29920 8033 7981 0x00000004 [ 1146.043906] Call Trace: [ 1146.046503] __schedule+0x88b/0x1de0 [ 1146.050213] ? io_schedule_timeout+0x140/0x140 [ 1146.057308] ? lock_downgrade+0x740/0x740 [ 1146.062074] schedule+0x8d/0x1b0 [ 1146.065441] schedule_preempt_disabled+0xf/0x20 [ 1146.070104] __mutex_lock+0x669/0x1310 [ 1146.075277] ? mount_bdev+0x71/0x360 [ 1146.079019] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.085464] ? __blkdev_get+0x1090/0x1090 [ 1146.089619] ? mntput+0x5c/0x80 [ 1146.093811] ? lookup_bdev+0x8c/0x1c0 [ 1146.097888] ? bdev_read_only+0x6a/0x90 [ 1146.102896] mount_bdev+0x71/0x360 [ 1146.106448] ? udf_load_vrs+0xa90/0xa90 [ 1146.111419] mount_fs+0x92/0x2a0 [ 1146.114804] vfs_kern_mount.part.0+0x5b/0x470 [ 1146.119296] do_mount+0xe53/0x2a00 [ 1146.124074] ? lock_acquire+0x170/0x3f0 [ 1146.128067] ? lock_downgrade+0x740/0x740 [ 1146.133823] ? copy_mount_string+0x40/0x40 [ 1146.138071] ? __might_fault+0x177/0x1b0 [ 1146.143149] ? _copy_from_user+0x96/0x100 [ 1146.147309] ? copy_mount_options+0x1fa/0x2f0 [ 1146.152826] ? copy_mnt_ns+0xa30/0xa30 [ 1146.156751] SyS_mount+0xa8/0x120 [ 1146.161747] ? copy_mnt_ns+0xa30/0xa30 [ 1146.165895] do_syscall_64+0x1d5/0x640 [ 1146.172053] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1146.177571] RIP: 0033:0x44a689 [ 1146.182031] RSP: 002b:00007f60baad0208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1146.191176] RAX: ffffffffffffffda RBX: 00000000004cb428 RCX: 000000000044a689 [ 1146.198451] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1146.206830] RBP: 00000000004cb420 R08: 0000000000000000 R09: 0000000000000000 [ 1146.214830] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb42c [ 1146.222956] R13: 00007ffdbdfa017f R14: 00007f60baad0300 R15: 0000000000022000 [ 1146.231044] INFO: task syz-executor165:7998 blocked for more than 140 seconds. [ 1146.238414] Not tainted 4.14.232-syzkaller #0 [ 1146.246095] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.254718] syz-executor165 D29920 7998 7985 0x00000004 [ 1146.262186] Call Trace: [ 1146.265561] __schedule+0x88b/0x1de0 [ 1146.269270] ? io_schedule_timeout+0x140/0x140 [ 1146.275372] ? lock_downgrade+0x740/0x740 [ 1146.279529] schedule+0x8d/0x1b0 [ 1146.283790] schedule_preempt_disabled+0xf/0x20 [ 1146.288456] __mutex_lock+0x669/0x1310 [ 1146.293404] ? mount_bdev+0x71/0x360 [ 1146.299383] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.306452] ? __blkdev_get+0x1090/0x1090 [ 1146.312063] ? mntput+0x5c/0x80 [ 1146.315794] ? lookup_bdev+0x8c/0x1c0 [ 1146.319776] ? bdev_read_only+0x6a/0x90 [ 1146.325059] mount_bdev+0x71/0x360 [ 1146.328603] ? udf_load_vrs+0xa90/0xa90 [ 1146.333475] mount_fs+0x92/0x2a0 [ 1146.336850] vfs_kern_mount.part.0+0x5b/0x470 [ 1146.342360] do_mount+0xe53/0x2a00 [ 1146.345904] ? lock_acquire+0x170/0x3f0 [ 1146.350001] ? lock_downgrade+0x740/0x740 [ 1146.356422] ? copy_mount_string+0x40/0x40 [ 1146.366399] ? __might_fault+0x177/0x1b0 [ 1146.372608] ? _copy_from_user+0x96/0x100 [ 1146.377817] ? copy_mount_options+0x1fa/0x2f0 [ 1146.383969] ? copy_mnt_ns+0xa30/0xa30 [ 1146.388912] SyS_mount+0xa8/0x120 [ 1146.393991] ? copy_mnt_ns+0xa30/0xa30 [ 1146.397898] do_syscall_64+0x1d5/0x640 [ 1146.403027] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1146.408794] RIP: 0033:0x44a689 [ 1146.413220] RSP: 002b:00007f60bab12208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1146.421548] RAX: ffffffffffffffda RBX: 00000000004cb408 RCX: 000000000044a689 [ 1146.429347] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1146.437597] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000 [ 1146.446092] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb40c [ 1146.455790] R13: 00007ffdbdfa017f R14: 00007f60bab12300 R15: 0000000000022000 [ 1146.463940] INFO: task syz-executor165:8030 blocked for more than 140 seconds. [ 1146.473460] Not tainted 4.14.232-syzkaller #0 [ 1146.478733] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.487657] syz-executor165 D29920 8030 7985 0x00000004 [ 1146.494333] Call Trace: [ 1146.497465] __schedule+0x88b/0x1de0 [ 1146.502367] ? io_schedule_timeout+0x140/0x140 [ 1146.507754] ? lock_downgrade+0x740/0x740 [ 1146.514400] schedule+0x8d/0x1b0 [ 1146.517968] schedule_preempt_disabled+0xf/0x20 [ 1146.524307] __mutex_lock+0x669/0x1310 [ 1146.528212] ? mount_bdev+0x71/0x360 [ 1146.532928] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.538642] ? __blkdev_get+0x1090/0x1090 [ 1146.543947] ? mntput+0x5c/0x80 [ 1146.547364] ? lookup_bdev+0x8c/0x1c0 [ 1146.552441] ? bdev_read_only+0x6a/0x90 [ 1146.556684] mount_bdev+0x71/0x360 [ 1146.561299] ? udf_load_vrs+0xa90/0xa90 [ 1146.565280] mount_fs+0x92/0x2a0 [ 1146.568902] vfs_kern_mount.part.0+0x5b/0x470 [ 1146.575226] do_mount+0xe53/0x2a00 [ 1146.578880] ? lock_acquire+0x170/0x3f0 [ 1146.583912] ? lock_downgrade+0x740/0x740 [ 1146.588072] ? copy_mount_string+0x40/0x40 [ 1146.593266] ? __might_fault+0x177/0x1b0 [ 1146.597332] ? _copy_from_user+0x96/0x100 [ 1146.602379] ? copy_mount_options+0x1fa/0x2f0 [ 1146.606876] ? copy_mnt_ns+0xa30/0xa30 [ 1146.611760] SyS_mount+0xa8/0x120 [ 1146.615217] ? copy_mnt_ns+0xa30/0xa30 [ 1146.619102] do_syscall_64+0x1d5/0x640 [ 1146.624259] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1146.629453] RIP: 0033:0x44a689 [ 1146.633632] RSP: 002b:00007f60baad0208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1146.643918] RAX: ffffffffffffffda RBX: 00000000004cb428 RCX: 000000000044a689 [ 1146.653363] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1146.664538] RBP: 00000000004cb420 R08: 0000000000000000 R09: 0000000000000000 [ 1146.673436] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb42c [ 1146.683286] R13: 00007ffdbdfa017f R14: 00007f60baad0300 R15: 0000000000022000 [ 1146.693318] INFO: task syz-executor165:7999 blocked for more than 140 seconds. [ 1146.702069] Not tainted 4.14.232-syzkaller #0 [ 1146.707527] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.719067] syz-executor165 D29920 7999 7983 0x00000004 [ 1146.725900] Call Trace: [ 1146.728508] __schedule+0x88b/0x1de0 [ 1146.733276] ? io_schedule_timeout+0x140/0x140 [ 1146.737902] ? lock_downgrade+0x740/0x740 [ 1146.743318] schedule+0x8d/0x1b0 [ 1146.747047] schedule_preempt_disabled+0xf/0x20 [ 1146.752823] __mutex_lock+0x669/0x1310 [ 1146.757158] ? mount_bdev+0x71/0x360 [ 1146.763017] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.769637] ? __blkdev_get+0x1090/0x1090 [ 1146.775934] ? mntput+0x5c/0x80 [ 1146.781677] ? lookup_bdev+0x8c/0x1c0 [ 1146.786989] ? bdev_read_only+0x6a/0x90 [ 1146.792240] mount_bdev+0x71/0x360 [ 1146.795879] ? udf_load_vrs+0xa90/0xa90 [ 1146.800078] mount_fs+0x92/0x2a0 [ 1146.805861] vfs_kern_mount.part.0+0x5b/0x470 [ 1146.812296] do_mount+0xe53/0x2a00 [ 1146.816326] ? lock_acquire+0x170/0x3f0 [ 1146.821454] ? lock_downgrade+0x740/0x740 [ 1146.825750] ? copy_mount_string+0x40/0x40 [ 1146.831510] ? __might_fault+0x177/0x1b0 [ 1146.835583] ? _copy_from_user+0x96/0x100 [ 1146.841786] ? copy_mount_options+0x1fa/0x2f0 [ 1146.847282] ? copy_mnt_ns+0xa30/0xa30 [ 1146.852479] SyS_mount+0xa8/0x120 [ 1146.856877] ? copy_mnt_ns+0xa30/0xa30 [ 1146.863113] do_syscall_64+0x1d5/0x640 [ 1146.867616] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1146.874700] RIP: 0033:0x44a689 [ 1146.879053] RSP: 002b:00007f60bab12208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1146.888379] RAX: ffffffffffffffda RBX: 00000000004cb408 RCX: 000000000044a689 [ 1146.896614] RDX: 0000000020000040 RSI: 0000000020000280 RDI: 00000000200004c0 [ 1146.906628] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000 [ 1146.916140] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb40c [ 1146.925409] R13: 00007ffdbdfa017f R14: 00007f60bab12300 R15: 0000000000022000 [ 1146.935054] [ 1146.935054] Showing all locks held in the system: [ 1146.942557] 1 lock held by khungtaskd/1534: [ 1146.948195] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1146.957789] 1 lock held by syz-executor165/7996: [ 1146.964053] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1146.976050] 1 lock held by syz-executor165/8032: [ 1146.981097] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1146.991003] 2 locks held by syz-executor165/7991: [ 1146.996182] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.007890] #1: (&type->s_umount_key#47){+.+.}, at: [] grab_super+0x55/0x140 [ 1147.017946] 1 lock held by syz-executor165/8029: [ 1147.023196] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.034097] 1 lock held by syz-executor165/8028: [ 1147.039500] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.049559] 1 lock held by syz-executor165/8000: [ 1147.055948] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.069010] 1 lock held by syz-executor165/8033: [ 1147.074438] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.085166] 1 lock held by syz-executor165/7998: [ 1147.090086] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.103261] 1 lock held by syz-executor165/8030: [ 1147.110370] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.121574] 1 lock held by syz-executor165/7999: [ 1147.127329] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.137604] 1 lock held by syz-executor165/8031: [ 1147.143450] #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x71/0x360 [ 1147.153242] [ 1147.155441] ============================================= [ 1147.155441] [ 1147.165342] NMI backtrace for cpu 0 [ 1147.169601] CPU: 0 PID: 1534 Comm: khungtaskd Not tainted 4.14.232-syzkaller #0 [ 1147.177608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1147.187710] Call Trace: [ 1147.190351] dump_stack+0x1b2/0x281 [ 1147.194400] nmi_cpu_backtrace.cold+0x57/0x93 [ 1147.199103] ? irq_force_complete_move+0x350/0x350 [ 1147.205304] nmi_trigger_cpumask_backtrace+0x13a/0x180 [ 1147.210908] watchdog+0x5b9/0xb40 [ 1147.214686] ? hungtask_pm_notify+0x50/0x50 [ 1147.220213] kthread+0x30d/0x420 [ 1147.224119] ? kthread_create_on_node+0xd0/0xd0 [ 1147.229619] ret_from_fork+0x24/0x30 [ 1147.233618] Sending NMI from CPU 0 to CPUs 1: [ 1147.238773] NMI backtrace for cpu 1 [ 1147.238777] CPU: 1 PID: 4622 Comm: systemd-journal Not tainted 4.14.232-syzkaller #0 [ 1147.238781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1147.238784] task: ffff8880a17c80c0 task.stack: ffff8880a17d0000 [ 1147.238786] RIP: 0010:prepare_creds+0x175/0x490 [ 1147.238788] RSP: 0018:ffff8880a17d7e38 EFLAGS: 00000202 [ 1147.238793] RAX: ffffffff88f44e40 RBX: ffff8880a17c80c0 RCX: 0000000000000000 [ 1147.238796] RDX: 1ffff110156d4632 RSI: ffff8880a1db76b8 RDI: ffff8880ab6a3190 [ 1147.238799] RBP: ffff8880a1db7600 R08: 0000000000000001 R09: ffffed10156d4636 [ 1147.238802] R10: ffff8880ab6a31b7 R11: 0000000000000000 R12: ffff8880ab6a3100 [ 1147.238805] R13: ffff8880a17d7fd0 R14: 00000000ffffff9c R15: 000055cb89f379a3 [ 1147.238808] FS: 00007f0e3533d8c0(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 1147.238810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1147.238813] CR2: 00007f0e3272b018 CR3: 00000000a1053000 CR4: 00000000001406e0 [ 1147.238816] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1147.238819] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1147.238821] Call Trace: [ 1147.238822] SyS_faccessat+0x7b/0x680 [ 1147.238824] ? SyS_fallocate+0x80/0x80 [ 1147.238826] ? do_syscall_64+0x4c/0x640 [ 1147.238828] ? SyS_faccessat+0x680/0x680 [ 1147.238830] do_syscall_64+0x1d5/0x640 [ 1147.238832] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1147.238834] RIP: 0033:0x7f0e345f89c7 [ 1147.238836] RSP: 002b:00007ffd8cc04908 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 1147.238841] RAX: ffffffffffffffda RBX: 00007ffd8cc07930 RCX: 00007f0e345f89c7 [ 1147.238844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055cb89f379a3 [ 1147.238846] RBP: 00007ffd8cc04a50 R08: 000055cb89f2d3e5 R09: 0000000000000018 [ 1147.238849] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 1147.238852] R13: 0000000000000000 R14: 000055cb8a0ff8a0 R15: 00007ffd8cc04f40 [ 1147.238853] Code: 24 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b3 02 00 00 49 8b 84 24 90 00 00 00 f0 ff 00 <49> 8d bc 24 98 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa [ 1147.239471] Kernel panic - not syncing: hung_task: blocked tasks [ 1147.464784] CPU: 0 PID: 1534 Comm: khungtaskd Not tainted 4.14.232-syzkaller #0 [ 1147.472218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1147.481766] Call Trace: [ 1147.484352] dump_stack+0x1b2/0x281 [ 1147.488151] panic+0x1f9/0x42d [ 1147.491332] ? add_taint.cold+0x16/0x16 [ 1147.495308] watchdog+0x5ca/0xb40 [ 1147.498752] ? hungtask_pm_notify+0x50/0x50 [ 1147.503079] kthread+0x30d/0x420 [ 1147.506444] ? kthread_create_on_node+0xd0/0xd0 [ 1147.511307] ret_from_fork+0x24/0x30 [ 1147.516371] Kernel Offset: disabled [ 1147.520233] Rebooting in 86400 seconds..