Warning: Permanently added '10.128.0.142' (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 (9s / 1min 30s)[  *** ] A start job is running for dev-ttyS0.device (10s / 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)[     *] A start job is running for dev-ttyS0.device (11s / 1min 30s)[   19.591276][   T22] audit: type=1400 audit(1626705904.142:8): avc:  denied  { execmem } for  pid=334 comm="syz-executor570" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[    **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[   19.633373][  T336] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   19.642975][  T336] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor570: reserved inode found cleared - inode=1
[   19.657894][  T336] incfs: Can't find or create .index dir in ./file0
[   19.666396][  T336] BUG: Dentry ffff8881ecbb2770{i=0,n=.index}  still in use (1) [unmount of ext4 loop0]
[   19.676240][  T336] ------------[ cut here ]------------
[   19.681777][  T336] WARNING: CPU: 1 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[   19.690080][  T336] Modules linked in:
[   19.693948][  T336] CPU: 1 PID: 336 Comm: syz-executor570 Not tainted 5.4.125-syzkaller-00002-g18f5581af79d #0
[   19.704060][  T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   19.714095][  T336] RIP: 0010:umount_check+0x179/0x1c0
[   19.719345][  T336] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 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
[   19.738917][  T336] RSP: 0018:ffff8881e5ac7a58 EFLAGS: 00010282
[   19.744952][  T336] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 741b62dd2af4ff00
[   19.752900][  T336] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[   19.760850][  T336] RBP: ffff8881e6321420 R08: ffffffff814e90d7 R09: ffffed103ede9608
[   19.769069][  T336] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000
[   19.777015][  T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbb2770
[   19.785201][  T336] FS:  0000000002202300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   19.795509][  T336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.802265][  T336] CR2: 00000000004b51d0 CR3: 00000001eb167000 CR4: 00000000001406e0
[   19.810238][  T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.818542][  T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.826496][  T336] Call Trace:
[   19.829771][  T336]  d_walk+0x2d9/0x540
[   19.833723][  T336]  ? __d_free+0x20/0x20
[   19.837849][  T336]  shrink_dcache_for_umount+0x8a/0x1a0
[   19.843407][  T336]  generic_shutdown_super+0x63/0x2a0
[   19.848858][  T336]  kill_block_super+0x79/0xd0
[   19.855197][  T336]  deactivate_locked_super+0xaf/0x100
[   19.860737][  T336]  deactivate_super+0x1b3/0x270
[   19.866188][  T336]  ? deactivate_locked_super+0x100/0x100
[   19.871890][  T336]  ? dput+0x4de/0x5d0
[   19.875844][  T336]  ? _raw_spin_lock_irq+0xa4/0x1b0
[   19.881015][  T336]  ? find_next_bit+0xc6/0x110
[   19.885818][  T336]  cleanup_mnt+0x432/0x4e0
[   19.890214][  T336]  task_work_run+0x186/0x1b0
[   19.894876][  T336]  do_exit+0xcb9/0x2bf0
[   19.899121][  T336]  ? mm_update_next_owner+0x5c0/0x5c0
[   19.904553][  T336]  ? __up_read+0x6f/0x1b0
[   19.909043][  T336]  ? __down_read+0x210/0x210
[   19.913786][  T336]  ? check_preemption_disabled+0x154/0x330
[   19.919657][  T336]  ? debug_smp_processor_id+0x20/0x20
[   19.925217][  T336]  do_group_exit+0x15c/0x2c0
[   19.929951][  T336]  ? do_user_addr_fault+0x6b0/0xb40
[   19.935134][  T336]  __do_sys_exit_group+0x13/0x20
[   19.940044][  T336]  __se_sys_exit_group+0x10/0x10
[   19.945066][  T336]  __x64_sys_exit_group+0x37/0x40
[   19.950148][  T336]  do_syscall_64+0xcb/0x1e0
[   19.954708][  T336]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   19.960581][  T336] RIP: 0033:0x442e89
[   19.964669][  T336] Code: Bad RIP value.
[   19.968710][  T336] RSP: 002b:00007ffeead15388 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   19.977287][  T336] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e89
[   19.985348][  T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   19.993320][  T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000
[   20.001474][  T336] R10: 0000000000000800 R11: 0000000000000246 R12: 00000000004b42f0
[   20.009508][  T336] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
[   20.017549][  T336] ---[ end trace f945140da95b40ef ]---
[   20.025504][  T336] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds.  Have a nice day...