RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: filesystem on './bus' not supported as upperdir ====================================================== WARNING: possible circular locking dependency detected 4.14.218-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.4/27157 is trying to acquire lock: (console_owner){-...}, at: [] console_trylock_spinning syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1658 [inline] (console_owner){-...}, at: [] vprintk_emit+0x32a/0x620 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1922 but task is already holding lock: (&(&port->lock)->rlock){-.-.}, at: [] tty_port_close_start.part.0+0x28/0x4c0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:573 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: __raw_spin_lock_irqsave syzkaller/managers/linux-4-14/kernel/./include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 syzkaller/managers/linux-4-14/kernel/kernel/locking/spinlock.c:160 tty_port_tty_get+0x1d/0x80 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:288 tty_port_default_wakeup+0x11/0x40 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:46 serial8250_tx_chars+0x3fe/0xbf0 syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_port.c:1810 serial8250_handle_irq.part.0+0x28d/0x330 syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_port.c:1897 serial8250_handle_irq syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_port.c:1870 [inline] serial8250_default_handle_irq+0x8a/0x1f0 syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_port.c:1913 serial8250_interrupt+0xf3/0x210 syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_core.c:129 __handle_irq_event_percpu+0xee/0x7f0 syzkaller/managers/linux-4-14/kernel/kernel/irq/handle.c:147 handle_irq_event_percpu syzkaller/managers/linux-4-14/kernel/kernel/irq/handle.c:187 [inline] handle_irq_event+0xf0/0x250 syzkaller/managers/linux-4-14/kernel/kernel/irq/handle.c:204 handle_edge_irq+0x224/0xc40 syzkaller/managers/linux-4-14/kernel/kernel/irq/chip.c:770 generic_handle_irq_desc syzkaller/managers/linux-4-14/kernel/./include/linux/irqdesc.h:159 [inline] handle_irq+0x35/0x50 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/irq_64.c:87 do_IRQ+0x93/0x1d0 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/irq.c:230 ret_from_intr+0x0/0x1e native_safe_halt+0xe/0x10 syzkaller/managers/linux-4-14/kernel/./arch/x86/include/asm/irqflags.h:60 arch_safe_halt syzkaller/managers/linux-4-14/kernel/./arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x47/0x370 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/process.c:558 cpuidle_idle_call syzkaller/managers/linux-4-14/kernel/kernel/sched/idle.c:156 [inline] do_idle+0x250/0x3c0 syzkaller/managers/linux-4-14/kernel/kernel/sched/idle.c:246 cpu_startup_entry+0x14/0x20 syzkaller/managers/linux-4-14/kernel/kernel/sched/idle.c:351 start_secondary+0x4db/0x670 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/smpboot.c:272 secondary_startup_64+0xa5/0xb0 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/head_64.S:240 -> #1 (&port_lock_key){-.-.}: __raw_spin_lock_irqsave syzkaller/managers/linux-4-14/kernel/./include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 syzkaller/managers/linux-4-14/kernel/kernel/locking/spinlock.c:160 serial8250_console_write+0x7a7/0x9d0 syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_port.c:3253 call_console_drivers syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1725 [inline] console_unlock+0x99d/0xf20 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:2400 vprintk_emit+0x224/0x620 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1923 vprintk_func+0x58/0x160 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk_safe.c:401 printk+0x9e/0xbc syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1996 register_console+0x6f4/0xad0 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:2719 univ8250_console_init+0x2f/0x3a syzkaller/managers/linux-4-14/kernel/drivers/tty/serial/8250/8250_core.c:691 console_init+0x46/0x53 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:2800 start_kernel+0x52e/0x770 syzkaller/managers/linux-4-14/kernel/init/main.c:634 secondary_startup_64+0xa5/0xb0 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/head_64.S:240 -> #0 (console_owner){-...}: lock_acquire+0x170/0x3f0 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:3998 console_trylock_spinning syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1679 [inline] vprintk_emit+0x367/0x620 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1922 vprintk_func+0x58/0x160 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk_safe.c:401 printk+0x9e/0xbc syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1996 tty_port_close_start.part.0+0x46c/0x4c0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:575 tty_port_close_start syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:647 [inline] tty_port_close+0x3b/0x130 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:640 tty_release+0x40b/0x10d0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_io.c:1670 __fput+0x25f/0x7a0 syzkaller/managers/linux-4-14/kernel/fs/file_table.c:210 task_work_run+0x11f/0x190 syzkaller/managers/linux-4-14/kernel/kernel/task_work.c:113 tracehook_notify_resume syzkaller/managers/linux-4-14/kernel/./include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:164 prepare_exit_to_usermode syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:199 [inline] syscall_return_slowpath syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: console_owner --> &port_lock_key --> &(&port->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&port->lock)->rlock); lock(&port_lock_key); lock(&(&port->lock)->rlock); lock(console_owner); *** DEADLOCK *** 2 locks held by syz-executor.4/27157: #0: (&tty->legacy_mutex){+.+.}, at: [] tty_lock+0x5f/0x70 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_mutex.c:19 #1: (&(&port->lock)->rlock){-.-.}, at: [] tty_port_close_start.part.0+0x28/0x4c0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:573 stack backtrace: CPU: 1 PID: 27157 Comm: syz-executor.4 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:1258 check_prev_add syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:1905 [inline] check_prevs_add syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:2022 [inline] validate_chain syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:3998 console_trylock_spinning syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1679 [inline] vprintk_emit+0x367/0x620 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1922 vprintk_func+0x58/0x160 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk_safe.c:401 printk+0x9e/0xbc syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1996 tty_port_close_start.part.0+0x46c/0x4c0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:575 tty_port_close_start syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:647 [inline] tty_port_close+0x3b/0x130 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_port.c:640 tty_release+0x40b/0x10d0 syzkaller/managers/linux-4-14/kernel/drivers/tty/tty_io.c:1670 __fput+0x25f/0x7a0 syzkaller/managers/linux-4-14/kernel/fs/file_table.c:210 task_work_run+0x11f/0x190 syzkaller/managers/linux-4-14/kernel/kernel/task_work.c:113 tracehook_notify_resume syzkaller/managers/linux-4-14/kernel/./include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:164 prepare_exit_to_usermode syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:199 [inline] syscall_return_slowpath syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x418e1b RSP: 002b:00007fff6ccb1970 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000418e1b RDX: 0000000000000000 RSI: 0000001b2f42ea5c RDI: 0000000000000006 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b30420000 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000056c9e0 R13: 0000000000049f1d R14: 000000000056c9e0 R15: 000000000056c008 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: filesystem on './bus' not supported as upperdir CPU: 1 PID: 27208 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3729 kmalloc syzkaller/managers/linux-4-14/kernel/./include/linux/slab.h:493 [inline] match_strdup+0x58/0xa0 syzkaller/managers/linux-4-14/kernel/lib/parser.c:331 ovl_parse_opt syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:421 [inline] ovl_fill_super+0x61e/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:865 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e274188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2741d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e274300 R15: 0000000000022000 overlayfs: unrecognized mount option "work”" or missing value overlayfs: unrecognized mount option "work”" or missing value vxfs: WRONG superblock magic eadffeae at 1 vxfs: WRONG superblock magic 00000000 at 8 vxfs: can't find superblock. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 27259 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3729 kmalloc syzkaller/managers/linux-4-14/kernel/./include/linux/slab.h:493 [inline] match_strdup+0x58/0xa0 syzkaller/managers/linux-4-14/kernel/lib/parser.c:331 ovl_parse_opt syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:421 [inline] ovl_fill_super+0x61e/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:865 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: unrecognized mount option "wZrkdir=./file1" or missing value overlayfs: unrecognized mount option "wZrkdir=./file1" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 27293 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3729 kmalloc syzkaller/managers/linux-4-14/kernel/./include/linux/slab.h:493 [inline] match_strdup+0x58/0xa0 syzkaller/managers/linux-4-14/kernel/lib/parser.c:331 ovl_parse_opt syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:414 [inline] ovl_fill_super+0x717/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:865 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: unrecognized mount option "u‹pLrdir=./bus#workdir=.(K&Š±?Oow rdir=." or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 27307 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 overlayfs: unrecognized mount option "u‹pLrdir=./bus#workdir=.(K&Š±?Oow rdir=." or missing value Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2bc/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3735 kstrdup+0x36/0x70 syzkaller/managers/linux-4-14/kernel/mm/util.c:56 ovl_mount_dir+0x26/0x190 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:608 ovl_fill_super+0x408/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:884 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: failed to resolve './file1': -2 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 27335 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2bc/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3735 kstrdup+0x36/0x70 syzkaller/managers/linux-4-14/kernel/mm/util.c:56 ovl_mount_dir+0x26/0x190 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:608 ovl_fill_super+0x862/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:909 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: failed to resolve './file1': -2 FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) overlayfs: unrecognized mount option "lēwerdir=öLŅ/~7ģaŻś.ė0½Ą÷ZĘŠaŚf" or missing value overlayfs: failed to resolve './file1': -2 overlayfs: unrecognized mount option "lēwerdir=öLŅ/~7ģaŻś.ė0½Ą÷ZĘŠaŚf" or missing value overlayfs: failed to resolve './file1': -2 overlayfs: filesystem on './bus' not supported as upperdir FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 overlayfs: failed to resolve './file1': -2 CPU: 0 PID: 27360 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3550 getname_kernel+0x4e/0x340 syzkaller/managers/linux-4-14/kernel/fs/namei.c:218 kern_path+0x1b/0x40 syzkaller/managers/linux-4-14/kernel/fs/namei.c:2466 ovl_mount_dir_noesc+0x58/0x130 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:583 ovl_mount_dir+0xee/0x190 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:612 ovl_fill_super+0x862/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:909 overlayfs: failed to resolve './file1': -2 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: filesystem on './bus' not supported as upperdir hugetlbfs: Bad mount option: "trusted.overlay.nlink" overlayfs: failed to resolve './file1': -12 overlayfs: unrecognized mount option "uppeorkdir=./file1" or missing value hugetlbfs: Bad mount option: "trusted.overlay.nlink" overlayfs: unrecognized mount option "uppeorkdir=./file1" or missing value FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 27395 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_fail_alloc_page syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:2898 [inline] prepare_alloc_pages syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:4131 [inline] __alloc_pages_nodemask+0x22c/0x2720 syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:4179 __alloc_pages syzkaller/managers/linux-4-14/kernel/./include/linux/gfp.h:484 [inline] __alloc_pages_node syzkaller/managers/linux-4-14/kernel/./include/linux/gfp.h:497 [inline] kmem_getpages syzkaller/managers/linux-4-14/kernel/mm/slab.c:1419 [inline] cache_grow_begin+0x91/0x630 syzkaller/managers/linux-4-14/kernel/mm/slab.c:2676 cache_alloc_refill+0x273/0x350 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3043 ____cache_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3125 [inline] __do_cache_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3347 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3382 [inline] kmem_cache_alloc+0x333/0x3c0 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3550 getname_kernel+0x4e/0x340 syzkaller/managers/linux-4-14/kernel/fs/namei.c:218 kern_path+0x1b/0x40 syzkaller/managers/linux-4-14/kernel/fs/namei.c:2466 ovl_mount_dir_noesc+0x58/0x130 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:583 ovl_mount_dir+0xee/0x190 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:612 ovl_fill_super+0x862/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:909 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 27412 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2bc/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3735 kstrdup+0x36/0x70 syzkaller/managers/linux-4-14/kernel/mm/util.c:56 ovl_fill_super+0xa12/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:937 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: filesystem on './bus' not supported as upperdir FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 27445 Comm: syz-executor.2 Not tainted 4.14.218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58 fail_dump syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 syzkaller/managers/linux-4-14/kernel/lib/fault-inject.c:149 should_failslab+0xd6/0x130 syzkaller/managers/linux-4-14/kernel/mm/failslab.c:32 slab_pre_alloc_hook syzkaller/managers/linux-4-14/kernel/mm/slab.h:421 [inline] slab_alloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3376 [inline] __do_kmalloc syzkaller/managers/linux-4-14/kernel/mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3729 kmalloc_array syzkaller/managers/linux-4-14/kernel/./include/linux/slab.h:607 [inline] kcalloc syzkaller/managers/linux-4-14/kernel/./include/linux/slab.h:618 [inline] ovl_fill_super+0xb7a/0x2610 syzkaller/managers/linux-4-14/kernel/fs/overlayfs/super.c:953 mount_nodev+0x4c/0xf0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1180 mount_fs+0x92/0x2a0 syzkaller/managers/linux-4-14/kernel/fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1046 vfs_kern_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:1036 [inline] do_new_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:2879 SYSC_mount syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 syzkaller/managers/linux-4-14/kernel/fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x465b09 RSP: 002b:00007f2d8e295188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f2d8e2951d0 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffda963f34f R14: 00007f2d8e295300 R15: 0000000000022000 overlayfs: missing 'lowerdir' overlayfs: missing 'lowerdir' overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: missing 'lowerdir' overlayfs: unrecognized mount option "¶d=˜ƒīQÓuĀ«S„|;jæ ’Œƒ6”—Ņ«§rö’8¹+÷ck—OāVÖ" or missing value overlayfs: missing 'lowerdir' overlayfs: unrecognized mount option "¶d=˜ƒīQÓuĀ«S„|;jæ ’Œƒ6”—Ņ«§rö’8¹+÷ck—OāVÖ" or missing value VFS: could not find a valid V7 on loop0. overlayfs: missing 'lowerdir' overlayfs: unrecognized mount option "upperdTp”gzP’gĘżir=./bus" or missing value VFS: could not find a valid V7 on loop0. overlayfs: missing 'lowerdir' overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "upperdTp”gzP’gĘżir=./bus" or missing value overlayfs: missing 'lowerdir' overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: missing 'lowerdir' overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: missing 'lowerdir' overlayfs: failed to resolve './file1': -2 overlayfs: failed to resolve './file1': -2 overlayfs: unrecognized mount option "workdi" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "workdi" or missing value overlayfs: failed to resolve './file%`]™Óź0xffffffffffffffff': -2 overlayfs: unrecognized mount option "workdi" or missing value overlayfs: unrecognized mount option "upperdi’" or missing value UBIFS error (pid: 27594): cannot open "/dev/loop0", error -22 print_req_error: I/O error, dev loop2, sector 0 print_req_error: I/O error, dev loop0, sector 0 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "upperdi’" or missing value overlayfs: missing 'lowerdir' UBIFS error (pid: 27604): cannot open "/dev/loop0", error -22 print_req_error: I/O error, dev loop0, sector 0 overlayfs: missing 'lowerdir' overlayfs: failed to resolve './fxle%`]™Óź': -2 overlayfs: unrecognized mount option "upperdnrh./b·>us work" or missing value overlayfs: failed to resolve './fxle%`]™Óź': -2 overlayfs: missing 'lowerdir' overlayfs: unrecognized mount option "upperdnrh./b·>us work" or missing value overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: unrecognized mount option "lower" or missing value overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "lower" or missing value squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "lower" or missing value overlayfs: failed to resolve './file%`]™Óź': -2 EXT4-fs (loop2): VFS: Can't find ext4 filesystem overlayfs: unrecognized mount option "lowerdir" or missing value overlayfs: filesystem on './bus' not supported as upperdir print_req_error: I/O error, dev loop2, sector 0 Buffer I/O error on dev loop2, logical block 0, async page read print_req_error: I/O error, dev loop2, sector 4 Buffer I/O error on dev loop2, logical block 2, async page read print_req_error: I/O error, dev loop2, sector 6 overlayfs: unrecognized mount option "lowerdir" or missing value Buffer I/O error on dev loop2, logical block 3, async page read squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop2 overlayfs: unrecognized mount option "lowerdir" or missing value overlayfs: failed to resolve './file%`]™Óź': -2 FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) overlayfs: unrecognized mount option "wor~dir=./file1" or missing value overlayfs: unrecognized mount option "lowerdir=" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "wor~dir=./file1" or missing value overlayfs: unrecognized mount option "lowerdir=" or missing value overlayfs: unrecognized mount option "lowerdir=" or missing value overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: unrecognized mount option "uppvrdir=.ir./f=." or missing value overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: unrecognized mount option "uppvrdir=.ir./f=." or missing value overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) overlayfs: failed to resolve '.'file%`®™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve '.'file%`®™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 print_req_error: I/O error, dev loop0, sector 0 print_req_error: I/O error, dev loop0, sector 0 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) overlayfs: failed to resolve './file%`]™Óź00000000000000000003': -2 overlayfs: failed to resolve './file%`]™Óź00000000000000000003': -2 overlayfs: filesystem on './bus' not supported as upperdir print_req_error: I/O error, dev loop0, sector 0 Buffer I/O error on dev loop0, logical block 0, async page read print_req_error: I/O error, dev loop0, sector 4 Buffer I/O error on dev loop0, logical block 2, async page read Buffer I/O error on dev loop0, logical block 3, async page read overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: missing 'lowerdir' overlayfs: missing 'lowerdir' overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: unrecognized mount option "loweir=*" or missing value base_sock_release(ffff88806961f200) sk=ffff88806b1fc5c0 overlayfs: unrecognized mount option "loweir=*" or missing value base_sock_release(ffff8880606625c0) sk=ffff88806d14a440 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: failed to resolve './file%`]™Óź': -2 overlayfs: unrecognized mount option "0xffffffffffffffff" or missing value overlayfs: unrecognized mount option "lowerdmr=./file%`]™Óź\" or missing value overlayfs: unrecognized mount option "0xffffffffffffffff" or missing value overlayfs: unrecognized mount option "lowerdmr=./file%`]™Óź\" or missing value overlayfs: unrecognized mount option "­|ų&ĪFé}Ł¢×“‘ĄÜY‡ā5…ś5¦½" or missing value overlayfs: unrecognized mount option "­|ų&ĪFé}Ł¢×“‘ĄÜY‡ā5…ś5¦½" or missing value overlayfs: filesystem on './bus' not supported as upperdir NILFS (loop4): couldn't find nilfs on the device overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir NILFS (loop4): couldn't find nilfs on the device NILFS (loop4): couldn't find nilfs on the device overlayfs: missing 'lowerdir' Buffer I/O error on dev loop4, logical block 0, async page read affs: Unrecognized mount option "overlay" or missing value Buffer I/O error on dev loop4, logical block 2, async page read affs: Error parsing options Buffer I/O error on dev loop4, logical block 3, async page read overlayfs: missing 'lowerdir' overlayfs: filesystem on './bus' not supported as upperdir NILFS (loop4): couldn't find nilfs on the device Buffer I/O error on dev loop4, logical block 0, async page read