[ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.43' (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)[ *] 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 (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)[* ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[ 23.915622][ T22] audit: type=1400 audit(1616606092.685:8): avc: denied { execmem } for pid=337 comm="syz-executor006" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.954355][ T338] incfs: Can't find or create .index dir in ./file0 [ 23.962484][ T338] BUG: Dentry ffff8881efb32220{i=0,n=.index} still in use (1) [unmount of ramfs ramfs] [ 23.972459][ T338] ------------[ cut here ]------------ [ 23.978546][ T338] WARNING: CPU: 1 PID: 338 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.986838][ T338] Modules linked in: [ 23.990751][ T338] CPU: 1 PID: 338 Comm: syz-executor006 Not tainted 5.4.107-syzkaller-00754-g32de11228337 #0 [ 24.001047][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.011321][ T338] RIP: 0010:umount_check+0x179/0x1c0 [ 24.016585][ T338] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 e9 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 87 db 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 [ 24.036167][ T338] RSP: 0018:ffff8881e97dfa60 EFLAGS: 00010296 [ 24.042217][ T338] RAX: 0000000000000055 RBX: ffffffff85fc1020 RCX: 7c045adca5806000 [ 24.050162][ T338] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 24.058149][ T338] RBP: ffff8881f162d420 R08: ffffffff814e8887 R09: ffffed103ede5e08 [ 24.066101][ T338] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 24.074070][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efb32220 [ 24.082034][ T338] FS: 0000000001b10300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 24.090937][ T338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.097948][ T338] CR2: 00000000004b01d0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 24.105917][ T338] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.113866][ T338] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.121841][ T338] Call Trace: [ 24.125126][ T338] d_walk+0x2d9/0x540 [ 24.129105][ T338] ? __d_free+0x20/0x20 [ 24.133235][ T338] shrink_dcache_for_umount+0x8a/0x1a0 [ 24.138683][ T338] generic_shutdown_super+0x63/0x2a0 [ 24.143951][ T338] kill_litter_super+0x71/0xa0 [ 24.148690][ T338] deactivate_locked_super+0xaf/0x100 [ 24.154318][ T338] deactivate_super+0x1b3/0x270 [ 24.159301][ T338] ? deactivate_locked_super+0x100/0x100 [ 24.165082][ T338] ? dput+0x4de/0x5d0 [ 24.169315][ T338] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 24.174417][ T338] ? find_next_bit+0xc6/0x110 [ 24.179074][ T338] cleanup_mnt+0x432/0x4e0 [ 24.183464][ T338] task_work_run+0x186/0x1b0 [ 24.188150][ T338] do_exit+0xcb9/0x2bf0 [ 24.192293][ T338] ? mm_update_next_owner+0x5c0/0x5c0 [ 24.197649][ T338] ? __up_read+0x6f/0x1b0 [ 24.201949][ T338] ? __down_read+0x210/0x210 [ 24.206513][ T338] ? check_preemption_disabled+0x154/0x330 [ 24.212309][ T338] ? debug_smp_processor_id+0x20/0x20 [ 24.217691][ T338] do_group_exit+0x15c/0x2c0 [ 24.222254][ T338] ? do_user_addr_fault+0x6b0/0xb40 [ 24.227440][ T338] __do_sys_exit_group+0x13/0x20 [ 24.232348][ T338] __se_sys_exit_group+0x10/0x10 [ 24.237254][ T338] __x64_sys_exit_group+0x37/0x40 [ 24.242262][ T338] do_syscall_64+0xcb/0x1e0 [ 24.246755][ T338] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.252628][ T338] RIP: 0033:0x43e399 [ 24.256510][ T338] Code: Bad RIP value. [ 24.260564][ T338] RSP: 002b:00007ffd3ba07118 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.269152][ T338] RAX: ffffffffffffffda RBX: 00000000004af2f0 RCX: 000000000043e399 [ 24.277096][ T338] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.285051][ T338] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004aa000 [ 24.292995][ T338] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004af2f0 [ 24.300949][ T338] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 24.308929][ T338] ---[ end trace d5a6b8c1cf35b53f ]--- [*[0[ 24.315796][