Warning: Permanently added '10.128.0.213' (ECDSA) to the list of known hosts. executing program [** ] 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)[ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ 20.932082][ T22] audit: type=1400 audit(1633300923.283:8): avc: denied { execmem } for pid=338 comm="syz-executor565" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 20.973982][ T339] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 20.983545][ T339] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor565: reserved inode found cleared - inode=1 [ 20.995973][ T339] incfs: Can't find or create .index dir in ./file0 [ 21.003224][ T339] BUG: Dentry ffff8881eca13dd0{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 21.012932][ T339] ------------[ cut here ]------------ [ 21.018548][ T339] WARNING: CPU: 1 PID: 339 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 21.026961][ T339] Modules linked in: [ 21.030849][ T339] CPU: 1 PID: 339 Comm: syz-executor565 Not tainted 5.4.125-syzkaller-00030-g1e429b8f9eb9 #0 [ 21.040975][ T339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.051023][ T339] RIP: 0010:umount_check+0x179/0x1c0 [ 21.056288][ T339] 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 [ 21.075981][ T339] RSP: 0018:ffff8881e54ffa58 EFLAGS: 00010282 [ 21.082027][ T339] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 3227d54643661c00 [ 21.089975][ T339] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 21.097929][ T339] RBP: ffff8881e57ef420 R08: ffffffff814e90e7 R09: ffffed103ede9608 [ 21.105895][ T339] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 [ 21.113839][ T339] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881eca13dd0 [ 21.122316][ T339] FS: 00005555564fc300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 21.131307][ T339] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.137858][ T339] CR2: 00007f719f6df1d0 CR3: 0000000005e0e000 CR4: 00000000003406e0 [ 21.145810][ T339] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.153774][ T339] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.161724][ T339] Call Trace: [ 21.165089][ T339] d_walk+0x2d9/0x540 [ 21.169050][ T339] ? __d_free+0x20/0x20 [ 21.173176][ T339] shrink_dcache_for_umount+0x8a/0x1a0 [ 21.178624][ T339] generic_shutdown_super+0x63/0x2a0 [ 21.184112][ T339] kill_block_super+0x79/0xd0 [ 21.188778][ T339] deactivate_locked_super+0xaf/0x100 [ 21.194212][ T339] deactivate_super+0x1b3/0x270 [ 21.199106][ T339] ? deactivate_locked_super+0x100/0x100 [ 21.204719][ T339] ? dput+0x4de/0x5d0 [ 21.208758][ T339] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 21.213840][ T339] ? find_next_bit+0xc6/0x110 [ 21.218484][ T339] cleanup_mnt+0x432/0x4e0 [ 21.222883][ T339] task_work_run+0x186/0x1b0 [ 21.227477][ T339] do_exit+0xcb9/0x2bf0 [ 21.231644][ T339] ? mm_update_next_owner+0x5c0/0x5c0 [ 21.237005][ T339] ? __up_read+0x6f/0x1b0 [ 21.241396][ T339] ? __down_read+0x210/0x210 [ 21.245969][ T339] ? check_preemption_disabled+0x154/0x330 [ 21.251757][ T339] ? debug_smp_processor_id+0x20/0x20 [ 21.257095][ T339] do_group_exit+0x15c/0x2c0 [ 21.261653][ T339] ? do_user_addr_fault+0x6b0/0xb40 [ 21.266821][ T339] __do_sys_exit_group+0x13/0x20 [ 21.271726][ T339] __se_sys_exit_group+0x10/0x10 [ 21.276628][ T339] __x64_sys_exit_group+0x37/0x40 [ 21.281716][ T339] do_syscall_64+0xcb/0x1e0 [ 21.286189][ T339] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.292063][ T339] RIP: 0033:0x7f719f66a0a9 [ 21.296459][ T339] Code: Bad RIP value. [ 21.300505][ T339] RSP: 002b:00007fffb2186658 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.308890][ T339] RAX: ffffffffffffffda RBX: 00007f719f6de330 RCX: 00007f719f66a0a9 [ 21.316841][ T339] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 21.324781][ T339] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f719f6d8e40 [ 21.332725][ T339] R10: 0000000002000000 R11: 0000000000000246 R12: 00007f719f6de330 [ 21.340673][ T339] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 21.348710][ T339] ---[ end trace 6665531766687134 ]--- [ **[0;31[ 21.357456][ T339] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... m*] A start job is running for dev-ttyS0.device (14s / 1min 30s)