[ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.244' (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 (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)[ ***] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[ 22.828608][ T22] audit: type=1400 audit(1634060976.736:8): avc: denied { execmem } for pid=335 comm="syz-executor210" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 22.863238][ T336] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 22.872777][ T336] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor210: reserved inode found cleared - inode=1 [ 22.885458][ T336] incfs: Can't find or create .index dir in ./file0 [ 22.892820][ T336] BUG: Dentry ffff8881ec8f3000{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 22.902521][ T336] ------------[ cut here ]------------ [ 22.907966][ T336] WARNING: CPU: 0 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 22.916292][ T336] Modules linked in: [ 22.920170][ T336] CPU: 0 PID: 336 Comm: syz-executor210 Not tainted 5.4.125-syzkaller-00026-g23c18f1ad0fc #0 [ 22.930289][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.940368][ T336] RIP: 0010:umount_check+0x179/0x1c0 [ 22.945621][ T336] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 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 [ 22.965212][ T336] RSP: 0018:ffff8881e5607a58 EFLAGS: 00010282 [ 22.971247][ T336] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 22f0003641380e00 [ 22.979188][ T336] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 22.987129][ T336] RBP: ffff8881e5d73420 R08: ffffffff814e90e7 R09: ffffed103edc9608 [ 22.995090][ T336] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 23.003043][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ec8f3000 [ 23.010985][ T336] FS: 0000555556a7d300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.019881][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.026432][ T336] CR2: 00007f9ee5fa21d0 CR3: 0000000005e0e000 CR4: 00000000003406f0 [ 23.034387][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.042501][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.050442][ T336] Call Trace: [ 23.053713][ T336] d_walk+0x2d9/0x540 [ 23.057677][ T336] ? __d_free+0x20/0x20 [ 23.061806][ T336] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.067237][ T336] generic_shutdown_super+0x63/0x2a0 [ 23.072493][ T336] kill_block_super+0x79/0xd0 [ 23.077138][ T336] deactivate_locked_super+0xaf/0x100 [ 23.082510][ T336] deactivate_super+0x1b3/0x270 [ 23.087329][ T336] ? deactivate_locked_super+0x100/0x100 [ 23.092930][ T336] ? dput+0x4de/0x5d0 [ 23.096899][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.101979][ T336] ? find_next_bit+0xc6/0x110 [ 23.106626][ T336] cleanup_mnt+0x432/0x4e0 [ 23.111011][ T336] task_work_run+0x186/0x1b0 [ 23.115586][ T336] do_exit+0xcb9/0x2bf0 [ 23.119714][ T336] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.125056][ T336] ? __up_read+0x6f/0x1b0 [ 23.129353][ T336] ? __down_read+0x210/0x210 [ 23.133910][ T336] ? check_preemption_disabled+0x154/0x330 [ 23.139684][ T336] ? debug_smp_processor_id+0x20/0x20 [ 23.145024][ T336] do_group_exit+0x15c/0x2c0 [ 23.149591][ T336] ? do_user_addr_fault+0x6b0/0xb40 [ 23.154777][ T336] __do_sys_exit_group+0x13/0x20 [ 23.159694][ T336] __se_sys_exit_group+0x10/0x10 [ 23.164603][ T336] __x64_sys_exit_group+0x37/0x40 [ 23.169600][ T336] do_syscall_64+0xcb/0x1e0 [ 23.174075][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.179943][ T336] RIP: 0033:0x7f9ee5f2d0f9 [ 23.184338][ T336] Code: Bad RIP value. [ 23.188379][ T336] RSP: 002b:00007ffea117ba18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.196805][ T336] RAX: ffffffffffffffda RBX: 00007f9ee5fa1330 RCX: 00007f9ee5f2d0f9 [ 23.204791][ T336] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.212745][ T336] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f9ee5f9be40 [ 23.220795][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ee5fa1330 [ 23.228747][ T3