[ OK ] Started Getty on tty6. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty5. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.82' (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 (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 (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 (15s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[ 22.614436][ T22] audit: type=1400 audit(1622898684.570:8): avc: denied { execmem } for pid=336 comm="syz-executor836" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 22.647928][ T339] incfs: Can't find or create .incomplete dir in ./file0 [ 22.660490][ T342] BUG: Dentry ffff8881ece32990{i=0,n=.incomplete} still in use (1) [unmount of vfat loop0] [ 22.670655][ T342] ------------[ cut here ]------------ [ 22.676246][ T342] WARNING: CPU: 1 PID: 342 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 22.684556][ T342] Modules linked in: [ 22.688966][ T342] CPU: 1 PID: 342 Comm: syz-executor836 Not tainted 5.4.124-syzkaller-01077-g11611d33ed17 #0 [ 22.699112][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.709239][ T342] RIP: 0010:umount_check+0x179/0x1c0 [ 22.714526][ T342] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 01 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 67 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 [ 22.734358][ T342] RSP: 0018:ffff8881dc967738 EFLAGS: 00010282 [ 22.740506][ T342] RAX: 0000000000000059 RBX: ffffffff85fc59e0 RCX: c295ed42be2d0100 [ 22.748455][ T342] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 22.756488][ T342] RBP: ffff8881dca1e420 R08: ffffffff814e8437 R09: ffffed103ede5e08 [ 22.764447][ T342] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 22.772406][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ece32990 [ 22.780644][ T342] FS: 00007fc1a4094700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 22.789675][ T342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.796246][ T342] CR2: 00000000004d15c0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 22.804204][ T342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.812165][ T342] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.820122][ T342] Call Trace: [ 22.823389][ T342] d_walk+0x2d9/0x540 [ 22.827555][ T342] ? __d_free+0x20/0x20 [ 22.831714][ T342] shrink_dcache_for_umount+0x8a/0x1a0 [ 22.837167][ T342] generic_shutdown_super+0x63/0x2a0 [ 22.842427][ T342] kill_block_super+0x79/0xd0 [ 22.847080][ T342] deactivate_locked_super+0xaf/0x100 [ 22.852427][ T342] deactivate_super+0x1b3/0x270 [ 22.857500][ T342] ? deactivate_locked_super+0x100/0x100 [ 22.863117][ T342] ? dput+0x4de/0x5d0 [ 22.867076][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 22.872174][ T342] ? find_next_bit+0xc6/0x110 [ 22.876836][ T342] cleanup_mnt+0x432/0x4e0 [ 22.881242][ T342] task_work_run+0x186/0x1b0 [ 22.885893][ T342] do_exit+0xcb9/0x2bf0 [ 22.890022][ T342] ? mm_update_next_owner+0x5c0/0x5c0 [ 22.895377][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 22.900523][ T342] ? _raw_spin_lock_irqsave+0x210/0x210 [ 22.906047][ T342] do_group_exit+0x15c/0x2c0 [ 22.910625][ T342] get_signal+0x164f/0x1fc0 [ 22.915113][ T342] ? ptrace_notify+0x340/0x340 [ 22.919851][ T342] do_signal+0x8d/0x610 [ 22.924067][ T342] ? signal_fault+0x1e0/0x1e0 [ 22.928719][ T342] ? __x64_sys_futex+0x1d/0xf0 [ 22.933451][ T342] prepare_exit_to_usermode+0x207/0x310 [ 22.938969][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.944832][ T342] RIP: 0033:0x449f09 [ 22.948880][ T342] Code: Bad RIP value. [ 22.952916][ T342] RSP: 002b:00007fc1a4094308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 22.961312][ T342] RAX: 0000000000000001 RBX: 00000000004cb418 RCX: 0000000000449f09 [ 22.969359][ T342] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000004cb41c [ 22.977316][ T342] RBP: 00000000004cb410 R08: 00007fc1a40946b8 R09: 0000000000000000 [ 22.985301][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb41c [ 22.993255][ T342] R13: 0030656c69662f2e R14: 6e656d6572636e69 R15: 0000000000022000 [ 23.001329][ T342] ---[ end trace d2d3a5ae9084247d ]--- [ 23.007865][ T342] BUG: Dentry ffff8881ece32990{i=0,n=.incomplete} still in use (1) [unmount of vfat loop0] [*[0;1;3[ 23.018352][ T342] ------------[ cut here ]------------ [ 23.024986][ T342] WARNING: CPU: 1 PID: 342 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.033318][ T342] Modules linked in: [ 23.037199][ T342] CPU: 1 PID: 342 Comm: syz-executor836 Tainted: G W 5.4.124-syzkaller-01077-g11611d33ed17 #0 [ 23.048729][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.058892][ T342] RIP: 0010:umount_check+0x179/0x1c0 [ 23.064169][ T342] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 60 01 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 67 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 [ 23.084758][ T342] RSP: 0018:ffff8881dc967738 EFLAGS: 00010282 [ 23.090956][ T342] RAX: 0000000000000059 RBX: ffffffff85fc59e0 RCX: c295ed42be2d0100 [ 23.098917][ T342] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 23.106957][ T342] RBP: ffff8881dca1e420 R08: ffffffff814e8437 R09: ffffed103ede5e08 [ 23.114922][ T342] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.122986][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ece32990 [ 23.131022][ T342] FS: 00007fc1a4094700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 23.139922][ T342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.146478][ T342] CR2: 0000000000449edf CR3: 00000001ee192000 CR4: 00000000001406e0 [ 23.154479][ T342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.162472][ T342] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.170425][ T342] Call Trace: [ 23.174370][ T342] d_walk+0x2d9/0x540 [ 23.178334][ T342] ? __d_free+0x20/0x20 [ 23.182464][ T342] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.188031][ T342] generic_shutdown_super+0x63/0x2a0 [ 23.193375][ T342] kill_block_super+0x79/0xd0 [ 23.198041][ T342] deactivate_locked_super+0xaf/0x100 [ 23.203386][ T342] deactivate_super+0x1b3/0x270 [ 23.208212][ T342] ? deactivate_locked_super+0x100/0x100 [ 23.213832][ T342] ? dput+0x4de/0x5d0 [ 23.217798][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.222979][ T342] ? find_next_bit+0xc6/0x110 [ 23.227632][ T342] cleanup_mnt+0x432/0x4e0 [ 23.232112][ T342] task_work_run+0x186/0x1b0 [ 23.236676][ T342] do_exit+0xcb9/0x2bf0 [ 23.240982][ T342] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.246343][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.251650][ T342] ? _raw_spin_lock_irqsave+0x210/0x210 [ 23.257200][ T342] do_group_exit+0x15c/0x2c0 [ 23.261801][ T342] get_signal+0x164f/0x1fc0 [ 23.266284][ T342] ? ptrace_notify+0x340/0x340 [ 23.271036][ T342] do_signal+0x8d/0x610 [ 23.275189][ T342] ? signal_fault+0x1e0/0x1e0 [ 23.279842][ T342] ? __x64_sys_futex+0x1d/0xf0 [ 23.284580][ T342] prepare_exit_to_usermode+0x207/0x310 [ 23.290139][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.296009][ T342] RIP: 0033:0x449f09 [ 23.299888][ T342] Code: Bad RIP value. [ 23.303946][ T342] RSP: 002b:00007fc1a4094308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 23.312471][ T342] RAX: 0000000000000001 RBX: 00000000004cb418 RCX: 0000000000449f09 [ 23.320421][ T342] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000004cb41c [ 23.328439][ T342] RBP: 00000000004cb410 R08: 00007fc1a40946b8 R09: 0000000000000000 [ 23.336508][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb41c [ 23.344474][ T342] R13: 0030656c69662f2e R14: 6e656d6572636e69 R15: 0000000000022000 [ 23.352435][ T342] ---[ end trace d2d3a5ae9084247e ]--- 1m** ] A start job is running for dev-ttyS0.dev[ 23.363466][ T342] VFS: Busy inodes af