Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.125' (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)[ 18.058435][ T22] audit: type=1400 audit(1629079134.964:8): avc: denied { execmem } for pid=332 comm="syz-executor403" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.099089][ T333] FAT-fs (loop0): Directory bread(block 6) failed [ 18.106797][ T333] FAT-fs (loop0): Directory bread(block 6) failed [ 18.114101][ T333] incfs: Can't find or create .index dir in ./file0 [ 18.121898][ T333] BUG: Dentry ffff8881ec9d6660{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 18.132431][ T333] ------------[ cut here ]------------ [ 18.137972][ T333] WARNING: CPU: 0 PID: 333 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.146622][ T333] Modules linked in: [ 18.150825][ T333] CPU: 0 PID: 333 Comm: syz-executor403 Not tainted 5.4.125-syzkaller-00008-ga8f2bcabf9c5 #0 [ 18.161227][ T333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.171364][ T333] RIP: 0010:umount_check+0x179/0x1c0 [ 18.176710][ T333] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 0b 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 [ 18.196288][ T333] RSP: 0018:ffff8881e5d1fa58 EFLAGS: 00010282 [ 18.202415][ T333] RAX: 0000000000000054 RBX: ffffffff85fc5e40 RCX: 020267b479b66300 [ 18.210438][ T333] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 18.219672][ T333] RBP: ffff8881e5d59420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 18.227646][ T333] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 18.236294][ T333] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ec9d6660 [ 18.244255][ T333] FS: 000000000151e300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 18.253292][ T333] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.260065][ T333] CR2: 00000000004b51d0 CR3: 00000001eb579000 CR4: 00000000001406f0 [ 18.268337][ T333] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.276418][ T333] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.284530][ T333] Call Trace: [ 18.287793][ T333] d_walk+0x2d9/0x540 [ 18.291754][ T333] ? __d_free+0x20/0x20 [ 18.295899][ T333] shrink_dcache_for_umount+0x8a/0x1a0 [ 18.301329][ T333] generic_shutdown_super+0x63/0x2a0 [ 18.307354][ T333] kill_block_super+0x79/0xd0 [ 18.312155][ T333] deactivate_locked_super+0xaf/0x100 [ 18.317505][ T333] deactivate_super+0x1b3/0x270 [ 18.322409][ T333] ? deactivate_locked_super+0x100/0x100 [ 18.328038][ T333] ? dput+0x4de/0x5d0 [ 18.332029][ T333] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 18.332038][ T333] ? find_next_bit+0xc6/0x110 [ 18.332052][ T333] cleanup_mnt+0x432/0x4e0 [ 18.346332][ T333] task_work_run+0x186/0x1b0 [ 18.350900][ T333] do_exit+0xcb9/0x2bf0 [ 18.355217][ T333] ? mm_update_next_owner+0x5c0/0x5c0 [ 18.360678][ T333] ? __up_read+0x6f/0x1b0 [ 18.365000][ T333] ? __down_read+0x210/0x210 [ 18.369566][ T333] ? check_preemption_disabled+0x154/0x330 [ 18.375694][ T333] ? debug_smp_processor_id+0x20/0x20 [ 18.381050][ T333] do_group_exit+0x15c/0x2c0 [ 18.385644][ T333] ? do_user_addr_fault+0x6b0/0xb40 [[ 18.390829][ T333] __do_sys_exit_group+0x13/0x20 [ 18.396264][ T333] __se_sys_exit_group+0x10/0x10 *[0;1;[ 18.401200][ T333] __x64_sys_exit_group+0x37/0x40 [ 18.407596][ T333] do_syscall_64+0xcb/0x1e0 31m**[ 18.412095][ T333] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.419526][ T333] RIP: 0033:0x442e09 [ 18.423401][ T333] Code: Bad RIP value. ] [ 18.427447][ T333] RSP: 002b:00007ffdf1d61448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.436691][ T333] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e09 [ 18.445270][ T333] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 18.453326][ T333] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 18.461895][ T333] R10: 0000000000210048 R11: 0000000000000246 R12: 00000000004b42f0 [ 18.469938][ T333] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 A start job is r[ 18.477913][ T333] ---[ end trace 13ede17fb090c1fa ]--- unning for dev-t[ 18.485831][ T333] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... tyS0.device (11s / 1min 30s)