[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty6. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.166' (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)[*** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ 23.334425][ T22] audit: type=1400 audit(1624346569.189:8): avc: denied { execmem } for pid=339 comm="syz-executor706" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.366508][ T341] incfs: Can't find or create .index dir in ./file0 [ 23.374898][ T341] BUG: Dentry ffff8881ec926aa0{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 23.384647][ T341] ------------[ cut here ]------------ [ 23.390080][ T341] WARNING: CPU: 0 PID: 341 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.398566][ T341] Modules linked in: [ 23.402448][ T341] CPU: 0 PID: 341 Comm: syz-executor706 Not tainted 5.4.125-syzkaller-00213-g5c5f02c3e9a5 #0 [ 23.412601][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.422764][ T341] RIP: 0010:umount_check+0x179/0x1c0 [ 23.428156][ T341] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 07 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 57 a6 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 [ 23.447821][ T341] RSP: 0018:ffff8881e60cfa58 EFLAGS: 00010282 [ 23.453876][ T341] RAX: 0000000000000054 RBX: ffffffff85fc5c00 RCX: 92e6d0a1b0a00a00 [ 23.461813][ T341] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.469759][ T341] RBP: ffff8881e68e2420 R08: ffffffff814e9057 R09: ffffed103edc5e08 [ 23.478008][ T341] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.485948][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ec926aa0 [ 23.493888][ T341] FS: 0000000001c25300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.502786][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.509333][ T341] CR2: 000055fd4aa43088 CR3: 00000001de072000 CR4: 00000000001406f0 [ 23.517291][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.525278][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.533262][ T341] Call Trace: [ 23.536568][ T341] d_walk+0x2d9/0x540 [ 23.540516][ T341] ? __d_free+0x20/0x20 [ 23.544706][ T341] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.550152][ T341] generic_shutdown_super+0x63/0x2a0 [ 23.555406][ T341] kill_block_super+0x79/0xd0 [ 23.560054][ T341] deactivate_locked_super+0xaf/0x100 [ 23.565565][ T341] deactivate_super+0x1b3/0x270 [ 23.570432][ T341] ? deactivate_locked_super+0x100/0x100 [ 23.576040][ T341] ? dput+0x4de/0x5d0 [ 23.580088][ T341] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.585179][ T341] ? find_next_bit+0xc6/0x110 [ 23.589846][ T341] cleanup_mnt+0x432/0x4e0 [ 23.594237][ T341] task_work_run+0x186/0x1b0 [ 23.598797][ T341] do_exit+0xcb9/0x2bf0 [ 23.602929][ T341] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.608497][ T341] ? __up_read+0x6f/0x1b0 [ 23.612793][ T341] ? __down_read+0x210/0x210 [ 23.617352][ T341] ? check_preemption_disabled+0x154/0x330 [ 23.623124][ T341] ? debug_smp_processor_id+0x20/0x20 [ 23.628472][ T341] do_group_exit+0x15c/0x2c0 [ 23.633048][ T341] ? do_user_addr_fault+0x6b0/0xb40 [ 23.638215][ T341] __do_sys_exit_group+0x13/0x20 [ 23.643141][ T341] __se_sys_exit_group+0x10/0x10 [ 23.648242][ T341] __x64_sys_exit_group+0x37/0x40 [ 23.653236][ T341] do_syscall_64+0xcb/0x1e0 [ 23.657714][ T341] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.663574][ T341] RIP: 0033:0x442ee9 [ 23.667441][ T341] Code: Bad RIP value. [ 23.671471][ T341] RSP: 002b:00007ffd514b72e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.679847][ T341] RAX: ffffffffffffffda RBX: 00000000004b53b0 RCX: 0000000000442ee9 [ 23.687866][ T341] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.695811][ T341] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 0000000000000001 [ 23.703769][ T341] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b53b0 [ 23.711795][ T341] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 23.719737][ T341] ---[ end trace da7ad3f18e92e07b ]--- [ 23.731669][ T341] VFS: Busy inodes after unmoun