Warning: Permanently added '10.128.0.96' (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 (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)[ 19.004333][ T22] audit: type=1400 audit(1633213075.304:8): avc: denied { execmem } for pid=346 comm="syz-executor470" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 19.046758][ T347] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 19.056186][ T347] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor470: reserved inode found cleared - inode=1 [ 19.068916][ T347] incfs: Can't find or create .index dir in ./file0 [ 19.076480][ T347] BUG: Dentry ffff8881ecb99990{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 19.086337][ T347] ------------[ cut here ]------------ [ 19.091783][ T347] WARNING: CPU: 0 PID: 347 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.100122][ T347] Modules linked in: [ 19.103993][ T347] CPU: 0 PID: 347 Comm: syz-executor470 Not tainted 5.4.125-syzkaller-00030-g1e429b8f9eb9 #0 [ 19.114169][ T347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.124210][ T347] RIP: 0010:umount_check+0x179/0x1c0 [ 19.129468][ T347] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 08 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 07 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 [ 19.149187][ T347] RSP: 0018:ffff8881e5a5fa58 EFLAGS: 00010282 [ 19.149196][ T347] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 5d853390c599d000 [ 19.149200][ T347] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 19.149204][ T347] RBP: ffff8881dae68420 R08: ffffffff814e90e7 R09: ffffed103edc9608 [ 19.149208][ T347] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 19.149220][ T347] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb99990 [ 19.195014][ T347] FS: 00005555561d0300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 19.203939][ T347] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.210507][ T347] CR2: 00007f559c58c1d0 CR3: 0000000005e0e000 CR4: 00000000003406f0 [ 19.218463][ T347] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.227209][ T347] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.235187][ T347] Call Trace: [[ 19.238474][ T347] d_walk+0x2d9/0x540 [ 19.242542][ T347] ? __d_free+0x20/0x20 [ 19.246702][ T347] shrink_dcache_for_umount+0x8a/0x1a0 *[0[ 19.252154][ T347] generic_shutdown_super+0x63/0x2a0 [ 19.258812][ T347] kill_block_super+0x79/0xd0 [ 19.263492][ T347] deactivate_locked_super+0xaf/0x100 m] [ 19.268855][ T347] deactivate_super+0x1b3/0x270 [ 19.273947][ T347] ? deactivate_locked_super+0x100/0x100 A start job is r[ 19.279583][ T347] ? dput+0x4de/0x5d0 [ 19.284933][ T347] ? _raw_spin_lock_irq+0xa4/0x1b0 unning for dev-t[ 19.290045][ T347] ? find_next_bit+0xc6/0x110 [ 19.296578][ T347] cleanup_mnt+0x432/0x4e0 tyS0.device (12s[ 19.300978][ T347] task_work_run+0x186/0x1b0 [ 19.306939][ T347] do_exit+0xcb9/0x2bf0 [ 19.311081][ T347] ? mm_update_next_owner+0x5c0/0x5c0 / 1min 30s)[ 19.316444][ T347] ? __up_read+0x6f/0x1b0 [ 19.321779][ T347] ? __down_read+0x210/0x210 [ 19.326349][ T347] ? check_preemption_disabled+0x154/0x330 [ 19.332122][ T347] ? debug_smp_processor_id+0x20/0x20 [ 19.337461][ T347] do_group_exit+0x15c/0x2c0 [ 19.342018][ T347] ? do_user_addr_fault+0x6b0/0xb40 [ 19.347186][ T347] __do_sys_exit_group+0x13/0x20 [ 19.352091][ T347] __se_sys_exit_group+0x10/0x10 [ 19.357000][ T347] __x64_sys_exit_group+0x37/0x40 [ 19.361996][ T347] do_syscall_64+0xcb/0x1e0 [ 19.366472][ T347] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.372332][ T347] RIP: 0033:0x7f559c5170a9 [ 19.376716][ T347] Code: Bad RIP value. [ 19.380750][ T347] RSP: 002b:00007ffe40c354c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.389129][ T347] RAX: ffffffffffffffda RBX: 00007f559c58b330 RCX: 00007f559c5170a9 [ 19.397070][ T347] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.405032][ T347] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f559c585e40 [ 19.412998][ T347] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f559c58b330 [ 19.420941][ T347] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.428917][ T347] ---[ end trace 8bd8cc4c97358d1c ]--- [ 19.442915][ T347] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...