Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.99' (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)[ 17.480900][ T22] audit: type=1400 audit(1628480499.240:8): avc: denied { execmem } for pid=337 comm="syz-executor171" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 17.520188][ T340] FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) [ 17.532985][ T340] incfs: Can't find or create .index dir in ./file0 [ 17.541165][ T343] BUG: Dentry ffff8881ec940aa0{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 17.550996][ T343] ------------[ cut here ]------------ [ 17.556457][ T343] WARNING: CPU: 1 PID: 343 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 17.564744][ T343] Modules linked in: [ 17.568616][ T343] CPU: 1 PID: 343 Comm: syz-executor171 Not tainted 5.4.125-syzkaller-00001-g306607c78507 #0 [ 17.578736][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.588773][ T343] RIP: 0010:umount_check+0x179/0x1c0 [ 17.594046][ T343] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 0a 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 [ 17.613715][ T343] RSP: 0018:ffff8881dacdf738 EFLAGS: 00010282 [ 17.619759][ T343] RAX: 0000000000000055 RBX: ffffffff85fc6160 RCX: f26d333000610b00 [ 17.627709][ T343] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 17.635658][ T343] RBP: ffff8881f4fed420 R08: ffffffff814e90d7 R09: ffffed103ede9608 [ 17.643599][ T343] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 [ 17.651539][ T343] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ec940aa0 [ 17.659480][ T343] FS: 00007f99c8378700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 17.668375][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.674923][ T343] CR2: 00000000004d15c0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 17.682864][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.690816][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.698755][ T343] Call Trace: [ 17.702014][ T343] d_walk+0x2d9/0x540 [ 17.705962][ T343] ? __d_free+0x20/0x20 [ 17.710085][ T343] shrink_dcache_for_umount+0x8a/0x1a0 [ 17.715511][ T343] generic_shutdown_super+0x63/0x2a0 [ 17.720775][ T343] kill_block_super+0x79/0xd0 [ 17.725419][ T343] deactivate_locked_super+0xaf/0x100 [ 17.730768][ T343] deactivate_super+0x1b3/0x270 [ 17.735585][ T343] ? deactivate_locked_super+0x100/0x100 [ 17.741181][ T343] ? dput+0x4de/0x5d0 [ 17.745139][ T343] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.750215][ T343] ? find_next_bit+0xc6/0x110 [ 17.754861][ T343] cleanup_mnt+0x432/0x4e0 [ 17.759243][ T343] task_work_run+0x186/0x1b0 [ 17.763799][ T343] do_exit+0xcb9/0x2bf0 [ 17.767922][ T343] ? mm_update_next_owner+0x5c0/0x5c0 [ 17.773259][ T343] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 17.778348][ T343] ? _raw_spin_lock_irqsave+0x210/0x210 [ 17.783863][ T343] do_group_exit+0x15c/0x2c0 [ 17.788419][ T343] get_signal+0x164f/0x1fc0 [ 17.792889][ T343] ? ptrace_notify+0x340/0x340 [ 17.797616][ T343] ? check_preemption_disabled+0x154/0x330 [ 17.803390][ T343] do_signal+0x8d/0x610 [ 17.807512][ T343] ? signal_fault+0x1e0/0x1e0 [ 17.812154][ T343] ? __x64_sys_futex+0x1d/0xf0 [ 17.816887][ T343] prepare_exit_to_usermode+0x207/0x310 [ 17.822397][ T343] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.828259][ T343] RIP: 0033:0x449f49 [ 17.832122][ T343] Code: Bad RIP value. [ 17.836152][ T343] RSP: 002b:00007f99c83782f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 17.844527][ T343] RAX: fffffffffffffe00 RBX: 00000000004cb410 RCX: 0000000000449f49 [ 17.852552][ T343] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb418 [ 17.860492][ T343] RBP: 00000000004cb41c R08: 0000000000000000 R09: 0000000000000000 [ 17.868445][ T343] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 17.876384][ T343] R13: 74733d6b63656863 R14: 6e656d6572636e69 R15: 00000000004cb418 [ 17.884323][ T343] ---[ end trace e173ce6deba5b5f5 ]--- [ *[0;1[ 17.891407][ T343] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... ;31m** ] A start job is running for dev-ttyS0.device (11s / 1min 30s)