Starting OpenBSD Secure Shell server...
         Starting Permit User Sessions...
[  OK  ] Started Permit User Sessions.
[  OK  ] Started Getty on tty4.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Getty on tty5.
[  OK  ] Started Getty on tty6.
[  OK  ] Started Getty on tty2.
[  OK  ] Started Getty on tty3.
[  OK  ] Started OpenBSD Secure Shell server.
Warning: Permanently added '10.128.1.94' (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 (8s / 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)[   18.046938][   T22] audit: type=1400 audit(1628524989.459:8): avc:  denied  { execmem } for  pid=339 comm="syz-executor576" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   18.090449][  T341] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   18.100329][  T341] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor576: reserved inode found cleared - inode=1
[   18.113408][  T341] incfs: Can't find or create .index dir in ./file0
[   18.120918][  T341] BUG: Dentry ffff8881eca4e110{i=0,n=.index}  still in use (1) [unmount of ext4 loop0]
[   18.130627][  T341] ------------[ cut here ]------------
[   18.136077][  T341] WARNING: CPU: 0 PID: 341 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   18.144373][  T341] Modules linked in:
[   18.148247][  T341] CPU: 0 PID: 341 Comm: syz-executor576 Not tainted 5.4.125-syzkaller-00001-g306607c78507 #0
[   18.158719][  T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   18.158733][  T341] RIP: 0010:umount_check+0x179/0x1c0
[   18.158741][  T341] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 0a e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 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
[   18.158745][  T341] RSP: 0018:ffff8881e5cbfa58 EFLAGS: 00010282
[   18.158757][  T341] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 4b4f3fd80b397300
[   18.208143][  T341] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   18.216089][  T341] RBP: ffff8881e5e69420 R08: ffffffff814e90d7 R09: ffffed103edc9608
[   18.224156][  T341] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000
[   18.232221][  T341] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eca4e110
[   18.240450][  T341] FS:  0000000000721300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   18.249575][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.256250][  T341] CR2: 00000000004b51d0 CR3: 0000000005e0e000 CR4: 00000000001406f0
[[   18.264216][  T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.272706][  T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.280658][  T341] Call Trace:
[   18.283937][  T341]  d_walk+0x2d9/0x540
[   18.287911][  T341]  ? __d_free+0x20/0x20
[   18.292206][  T341]  shrink_dcache_for_umount+0x8a/0x1a0
  *[0;1;[   18.297795][  T341]  generic_shutdown_super+0x63/0x2a0
[   18.304450][  T341]  kill_block_super+0x79/0xd0
31m**[   18.309114][  T341]  deactivate_locked_super+0xaf/0x100
 ] [   18.315932][  T341]  deactivate_super+0x1b3/0x270
[   18.321371][  T341]  ? deactivate_locked_super+0x100/0x100
[   18.327122][  T341]  ? dput+0x4de/0x5d0
[   18.331096][  T341]  ? _raw_spin_lock_irq+0xa4/0x1b0
A start job is r[   18.336204][  T341]  ? find_next_bit+0xc6/0x110
[   18.342274][  T341]  cleanup_mnt+0x432/0x4e0
unning for dev-t[   18.346683][  T341]  task_work_run+0x186/0x1b0
[   18.352721][  T341]  do_exit+0xcb9/0x2bf0
tyS0.device (10s[   18.356864][  T341]  ? mm_update_next_owner+0x5c0/0x5c0
[   18.363621][  T341]  ? __up_read+0x6f/0x1b0
 / 1min 30s)[   18.367966][  T341]  ? __down_read+0x210/0x210
[   18.373718][  T341]  ? check_preemption_disabled+0x154/0x330
[   18.379547][  T341]  ? debug_smp_processor_id+0x20/0x20
[   18.384906][  T341]  do_group_exit+0x15c/0x2c0
[   18.389654][  T341]  ? do_user_addr_fault+0x6b0/0xb40
[   18.394913][  T341]  __do_sys_exit_group+0x13/0x20
[   18.399822][  T341]  __se_sys_exit_group+0x10/0x10
[   18.404729][  T341]  __x64_sys_exit_group+0x37/0x40
[   18.409743][  T341]  do_syscall_64+0xcb/0x1e0
[   18.414215][  T341]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   18.420085][  T341] RIP: 0033:0x442f09
[   18.423952][  T341] Code: Bad RIP value.
[   18.427988][  T341] RSP: 002b:00007ffc071f0bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   18.436583][  T341] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442f09
[   18.444539][  T341] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   18.452844][  T341] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000
[   18.460810][  T341] R10: 0000000000000400 R11: 0000000000000246 R12: 00000000004b42f0
[   18.468840][  T341] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   18.476963][  T341] ---[ end trace 85e87d629672f9ae ]---
[   18.487307][  T341] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...