Starting Permit User Sessions...
         Starting OpenBSD Secure Shell server...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Getty on tty2.
[  OK  ] Started Getty on tty5.
[  OK  ] Started Getty on tty3.
[  OK  ] Started Getty on tty4.
[  OK  ] Started Getty on tty6.
[  OK  ] Started Getty on tty1.
[  OK  ] Started OpenBSD Secure Shell server.
Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts.
executing program
[*     ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[**    ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[***   ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[ ***  ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[  *** ] A start job is running for dev-ttyS0.device (11s / 1min 30s)[   17.733591][   T22] audit: type=1400 audit(1625893865.851:8): avc:  denied  { execmem } for  pid=349 comm="syz-executor467" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   17.777564][  T352] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   17.787127][  T352] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor467: reserved inode found cleared - inode=1
[   17.800240][  T352] incfs: Can't find or create .index dir in ./file0
[   17.807652][  T351] syz-executor467 (351) used greatest stack depth: 20496 bytes left
[   17.898899][  T356] BUG: Dentry ffff8881ecbecee0{i=0,n=.index}  still in use (1) [unmount of ext4 loop0]
[   17.908600][  T356] ------------[ cut here ]------------
[   17.914040][  T356] WARNING: CPU: 0 PID: 356 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   17.922322][  T356] Modules linked in:
[   17.926188][  T356] CPU: 0 PID: 356 Comm: syz-executor467 Not tainted 5.4.125-syzkaller-00002-g3e5f38396428 #0
[   17.936297][  T356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   17.946327][  T356] RIP: 0010:umount_check+0x179/0x1c0
[   17.951586][  T356] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 06 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 af ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff
[   17.971171][  T356] RSP: 0018:ffff8881e5f3f738 EFLAGS: 00010282
[   17.977203][  T356] RAX: 0000000000000054 RBX: ffffffff85faa080 RCX: e169ae12b0de2800
[   17.985140][  T356] RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
[   17.993076][  T356] RBP: ffff8881e5f2c420 R08: ffffffff814e90a7 R09: ffffed103edc9608
[   18.001014][  T356] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   18.008952][  T356] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbecee0
[   18.016890][  T356] FS:  00007fbc79d25700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   18.025779][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.032326][  T356] CR2: 00007fbc79d47000 CR3: 00000001f29e0000 CR4: 00000000001406f0
[   18.040271][  T356] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.048233][  T356] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.056172][  T356] Call Trace:
[   18.059431][  T356]  d_walk+0x2d9/0x540
[   18.063396][  T356]  ? __d_free+0x20/0x20
[   18.063404][  T356]  shrink_dcache_for_umount+0x8a/0x1a0
[   18.063417][  T356]  generic_shutdown_super+0x63/0x2a0
[   18.078246][  T356]  kill_block_super+0x79/0xd0
[   18.082917][  T356]  deactivate_locked_super+0xaf/0x100
[   18.088344][  T356]  deactivate_super+0x1b3/0x270
[   18.093207][  T356]  ? deactivate_locked_super+0x100/0x100
[   18.098812][  T356]  ? dput+0x4de/0x5d0
[   18.103118][  T356]  ? _raw_spin_lock_irq+0xa4/0x1b0
[   18.108239][  T356]  ? find_next_bit+0xc6/0x110
[   18.112955][  T356]  cleanup_mnt+0x432/0x4e0
[[   18.117349][  T356]  task_work_run+0x186/0x1b0
[   18.122002][  T356]  do_exit+0xcb9/0x2bf0
[   18.126140][  T356]  ? mm_update_next_owner+0x5c0/0x5c0
[   18.131491][  T356]  ? _raw_spin_lock_irq+0xa4/0x1b0
   *[0;1[   18.136574][  T356]  ? _raw_spin_lock_irqsave+0x210/0x210
[   18.143480][  T356]  do_group_exit+0x15c/0x2c0
;31m*[   18.148045][  T356]  get_signal+0x164f/0x1fc0
*] [   18.153907][  T356]  ? ptrace_notify+0x340/0x340
[   18.159247][  T356]  do_signal+0x8d/0x610
[   18.163376][  T356]  ? signal_fault+0x1e0/0x1e0
[   18.168031][  T356]  ? __x64_sys_futex+0x1d/0xf0
[   18.172772][  T356]  prepare_exit_to_usermode+0x207/0x310
A start job is r[   18.178296][  T356]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   18.185543][  T356] RIP: 0033:0x44ac59
[   18.189417][  T356] Code: Bad RIP value.
unning for dev-t[   18.193452][  T356] RSP: 002b:00007fbc79d252f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[   18.203214][  T356] RAX: fffffffffffffe00 RBX: 00000000004cb4d0 RCX: 000000000044ac59
[   18.211162][  T356] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb4d8
[   18.219111][  T356] RBP: 00000000004cb4dc R08: 0000000000000000 R09: 0000000000000000
tyS0.device (11s[   18.227056][  T356] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[   18.236382][  T356] R13: e5d26e84aa4cf3c6 R14: 6e656d6572636e69 R15: 00000000004cb4d8
[   18.244344][  T356] ---[ end trace 90bbd817771fcf83 ]---
 / 1min 30s)[   18.251955][  T356] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...