Starting OpenBSD Secure Shell server...
Starting Permit User Sessions...
[[0;32m OK [0m] Started Permit User Sessions.
[[0;32m OK [0m] Started Getty on tty6.
[[0;32m OK [0m] Started Getty on tty3.
[[0;32m OK [0m] Started Getty on tty2.
[[0;32m OK [0m] Started Getty on tty4.
[[0;32m OK [0m] Started Getty on tty5.
[[0;32m OK [0m] Started Getty on tty1.
[[0;32m OK [0m] Started OpenBSD Secure Shell server.
Warning: Permanently added '10.128.1.49' (ECDSA) to the list of known hosts.
executing program
[[0m[0;31m* [0m] A start job is running for dev-ttyS0.device (8s / 1min 30s)[K[[0;1;31m*[0m[0;31m* [0m] A start job is running for dev-ttyS0.device (9s / 1min 30s)[K[[0;31m*[0;1;31m*[0m[0;31m* [0m] A start job is running for dev-ttyS0.device (9s / 1min 30s)[K[ [0;31m*[0;1;31m*[0m[0;31m* [0m] A start job is running for dev-ttyS0.device (10s / 1min 30s)[K[ [0;31m*[0;1;31m*[0m[0;31m* [0m] A start [ 18.143992][ T22] audit: type=1400 audit(1617378755.466:8): avc: denied { execmem } for pid=333 comm="syz-executor189" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
job is running for dev-ttyS0.device (10s / 1min 30s)[ 18.172651][ T336] FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
[ 18.182898][ T336] incfs: Can't find or create .index dir in ./file0
[ 18.192114][ T336] BUG: Dentry ffff8881ef99bdd0{i=0,n=.index} still in use (1) [unmount of msdos loop0]
[ 18.202048][ T336] ------------[ cut here ]------------
[ 18.207500][ T336] WARNING: CPU: 0 PID: 336 at fs/dcache.c:1597 umount_check+0x179/0x1c0
[ 18.215786][ T336] Modules linked in:
[ 18.219651][ T336] CPU: 0 PID: 336 Comm: syz-executor189 Not tainted 5.4.108-syzkaller-00855-g708026dc169c #0
[ 18.229762][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 18.239792][ T336] RIP: 0010:umount_check+0x179/0x1c0
[ 18.245066][ T336] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 ee e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 dc 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
[ 18.264644][ T336] RSP: 0018:ffff8881e9a27738 EFLAGS: 00010282
[ 18.270678][ T336] RAX: 0000000000000055 RBX: ffffffff85fc5100 RCX: f6ee8f1662f89500
[ 18.278620][ T336] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[ 18.286563][ T336] RBP: ffff8881e9a9c420 R08: ffffffff814e8847 R09: ffffed103edc5e08
[ 18.294520][ T336] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000
[ 18.302458][ T336] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ef99bdd0
[ 18.310400][ T336] FS: 00007fde4fc4f700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[ 18.319297][ T336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.325847][ T336] CR2: 00000000004d15c0 CR3: 00000001eea72000 CR4: 00000000001406f0
[ 18.333790][ T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 18.341728][ T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 18.349681][ T336] Call Trace:
[ 18.352941][ T336] d_walk+0x2d9/0x540
[ 18.356894][ T336] ? __d_free+0x20/0x20
[ 18.361016][ T336] shrink_dcache_for_umount+0x8a/0x1a0
[ 18.366443][ T336] generic_shutdown_super+0x63/0x2a0
[ 18.371708][ T336] kill_block_super+0x79/0xd0
[ 18.376352][ T336] deactivate_locked_super+0xaf/0x100
[ 18.381689][ T336] deactivate_super+0x1b3/0x270
[ 18.386507][ T336] ? deactivate_locked_super+0x100/0x100
[ 18.392112][ T336] ? dput+0x4de/0x5d0
[ 18.396063][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0
[ 18.401139][ T336] ? find_next_bit+0xc6/0x110
[ 18.405795][ T336] cleanup_mnt+0x432/0x4e0
[ 18.410188][ T336] task_work_run+0x186/0x1b0
[ 18.414763][ T336] do_exit+0xcb9/0x2bf0
[ 18.418889][ T336] ? mm_update_next_owner+0x5c0/0x5c0
[ 18.424233][ T336] ? debug_smp_processor_id+0x20/0x20
[ 18.429573][ T336] ? stack_trace_snprint+0x150/0x150
[ 18.434838][ T336] ? _raw_spin_lock_irq+0xa4/0x1b0
[ 18.439921][ T336] ? _raw_spin_lock_irqsave+0x210/0x210
[ 18.445444][ T336] do_group_exit+0x15c/0x2c0
[ 18.450027][ T336] get_signal+0x164f/0x1fc0
[ 18.454515][ T336] ? ptrace_notify+0x340/0x340
[ 18.459252][ T336] ? check_preemption_disabled+0x154/0x330
[ 18.465048][ T336] do_signal+0x8d/0x610
[ 18.469187][ T336] ? kfree+0xe0/0x660
[ 18.473141][ T336] ? signal_fault+0x1e0/0x1e0
[ 18.477789][ T336] ? ksys_mount+0xe0/0xf0
[ 18.482092][ T336] ? __x64_sys_futex+0x1d/0xf0
[ 18.486838][ T336] prepare_exit_to_usermode+0x207/0x310
[ 18.492359][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 18.498239][ T336] RIP: 0033:0x449f19
[ 18.502113][ T336] Code: Bad RIP value.
[ 18.506149][ T336] RSP: 002b:00007fde4fc4f308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[ 18.514530][ T336] RAX: fffffffffffffe00 RBX: 00000000004cb408 RCX: 0000000000449f19
[ 18.522471][ T336] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004cb408
[ 18.530414][ T336] RBP: 00000000004cb400 R08: 0000000000000000 R09: 0000000000000000
[ 18.538355][ T336] R10: 0000000000000000 R11: 00000000000002