Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty3. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.39' (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 (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 (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)[ 20.124000][ T22] audit: type=1400 audit(1631300655.505:8): avc: denied { execmem } for pid=345 comm="syz-executor191" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 20.165846][ T346] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 20.175326][ T346] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor191: reserved inode found cleared - inode=1 [ 20.189290][ T346] incfs: Can't find or create .index dir in ./file0 [ 20.198230][ T346] BUG: Dentry ffff8881ecb2c330{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 20.207936][ T346] ------------[ cut here ]------------ [ 20.213374][ T346] WARNING: CPU: 0 PID: 346 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 20.221659][ T346] Modules linked in: [ 20.225524][ T346] CPU: 0 PID: 346 Comm: syz-executor191 Not tainted 5.4.125-syzkaller-00017-g8670e680e307 #0 [ 20.235634][ T346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.245664][ T346] RIP: 0010:umount_check+0x179/0x1c0 [ 20.250919][ T346] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 0c 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 [ 20.270490][ T346] RSP: 0018:ffff8881e6e2fa58 EFLAGS: 00010282 [ 20.276572][ T346] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: f82e8798e1ba6300 [ 20.284565][ T346] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 20.292546][ T346] RBP: ffff8881e6209420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 20.300486][ T346] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 20.308423][ T346] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb2c330 [ 20.316367][ T346] FS: 0000000000805300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 20.325259][ T346] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.331810][ T346] CR2: 00005558c4bd9370 CR3: 0000000005e0e000 CR4: 00000000001406f0 [ 20.339753][ T346] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.347691][ T346] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.355627][ T346] Call Trace: [ 20.358890][ T346] d_walk+0x2d9/0x540 [ 20.362849][ T346] ? __d_free+0x20/0x20 [ 20.366983][ T346] shrink_dcache_for_umount+0x8a/0x1a0 [ 20.372412][ T346] generic_shutdown_super+0x63/0x2a0 [ 20.377669][ T346] kill_block_super+0x79/0xd0 [ 20.382365][ T346] deactivate_locked_super+0xaf/0x100 [ 20.387752][ T346] deactivate_super+0x1b3/0x270 [ 20.392572][ T346] ? deactivate_locked_super+0x100/0x100 [ 20.398172][ T346] ? dput+0x4de/0x5d0 [ 20.402123][ T346] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.407210][ T346] ? find_next_bit+0xc6/0x110 [ 20.411853][ T346] cleanup_mnt+0x432/0x4e0 [ 20.416239][ T346] task_work_run+0x186/0x1b0 [ 20.420799][ T346] do_exit+0xcb9/0x2bf0 [ 20.424921][ T346] ? mm_update_next_owner+0x5c0/0x5c0 [ 20.430345][ T346] ? __up_read+0x6f/0x1b0 [ 20.434640][ T346] ? __down_read+0x210/0x210 [ 20.439205][ T346] ? check_preemption_disabled+0x154/0x330 [ 20.444975][ T346] ? debug_smp_processor_id+0x20/0x20 [ 20.450310][ T346] do_group_exit+0x15c/0x2c0 [ 20.454869][ T346] ? do_user_addr_fault+0x6b0/0xb40 [ 20.460032][ T346] __do_sys_exit_group+0x13/0x20 [ 20.464934][ T346] __se_sys_exit_group+0x10/0x10 [ 20.469833][ T346] __x64_sys_exit_group+0x37/0x40 [ 20.474822][ T346] do_syscall_64+0xcb/0x1e0 [ 20.479292][ T346] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.485145][ T346] RIP: 0033:0x442e99 [ 20.489005][ T346] Code: Bad RIP value. [ 20.493036][ T346] RSP: 002b:00007fff10ed8288 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.501417][ T346] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e99 [ 20.509372][ T346] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 20.517312][ T346] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 20.525251][ T346] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 20.533199][ T346] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 20.533206][ T346] ---[ end trace dcd09e88914a8772 ]--- [ [0;31[ 20.548143][ T346] 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)