RDX: 0000000020000040 RSI: 0000000000005406 RDI: 0000000000000003 RBP: 00007f8d15464ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdab7531af R14: 00007f8d154659c0 R15: 000000000119bf8c ====================================================== WARNING: possible circular locking dependency detected 4.14.213-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/30460 is trying to acquire lock: (console_owner){-...}, at: [] console_trylock_spinning kernel/printk/printk.c:1658 [inline] (console_owner){-...}, at: [] vprintk_emit+0x32a/0x620 kernel/printk/printk.c:1922 but task is already holding lock: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xdb/0x1d0 drivers/tty/pty.c:120 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160 tty_port_tty_get+0x1d/0x80 drivers/tty/tty_port.c:288 tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:46 serial8250_tx_chars+0x3fe/0xbf0 drivers/tty/serial/8250/8250_port.c:1810 serial8250_handle_irq.part.0+0x28d/0x330 drivers/tty/serial/8250/8250_port.c:1897 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1870 [inline] serial8250_default_handle_irq+0x8a/0x1f0 drivers/tty/serial/8250/8250_port.c:1913 serial8250_interrupt+0xf3/0x210 drivers/tty/serial/8250/8250_core.c:129 __handle_irq_event_percpu+0xee/0x7f0 kernel/irq/handle.c:147 handle_irq_event_percpu kernel/irq/handle.c:187 [inline] handle_irq_event+0xf0/0x246 kernel/irq/handle.c:204 handle_edge_irq+0x224/0xc40 kernel/irq/chip.c:770 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x93/0x1d0 arch/x86/kernel/irq.c:230 ret_from_intr+0x0/0x1e native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x47/0x370 arch/x86/kernel/process.c:558 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x250/0x3c0 kernel/sched/idle.c:246 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:351 start_kernel+0x750/0x770 init/main.c:708 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #1 (&port_lock_key){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160 serial8250_console_write+0x7a7/0x9d0 drivers/tty/serial/8250/8250_port.c:3253 call_console_drivers kernel/printk/printk.c:1725 [inline] console_unlock+0x99d/0xf20 kernel/printk/printk.c:2400 vprintk_emit+0x224/0x620 kernel/printk/printk.c:1923 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 register_console+0x6f4/0xad0 kernel/printk/printk.c:2719 univ8250_console_init+0x2f/0x3a drivers/tty/serial/8250/8250_core.c:691 console_init+0x46/0x53 kernel/printk/printk.c:2800 start_kernel+0x52e/0x770 init/main.c:634 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #0 (console_owner){-...}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit+0x367/0x620 kernel/printk/printk.c:1922 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 fail_dump lib/fault-inject.c:44 [inline] should_fail.cold+0xdf/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x6d/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc+0xc0/0x270 drivers/tty/tty_buffer.c:169 __tty_buffer_request_room+0x12c/0x290 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8b/0x210 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x10d/0x1d0 drivers/tty/pty.c:122 tty_put_char+0xfe/0x120 drivers/tty/tty_io.c:2885 __process_echoes+0x134/0x8c0 drivers/tty/n_tty.c:746 process_echoes+0xe9/0x1a0 drivers/tty/n_tty.c:811 n_tty_set_termios+0x60f/0xcc0 drivers/tty/n_tty.c:1870 tty_set_termios+0x5d5/0x810 drivers/tty/tty_ioctl.c:340 set_termios.part.0+0x244/0x3f0 drivers/tty/tty_ioctl.c:413 set_termios drivers/tty/tty_ioctl.c:367 [inline] tty_mode_ioctl+0x94b/0xa80 drivers/tty/tty_ioctl.c:780 n_tty_ioctl_helper+0x44/0x350 drivers/tty/tty_ioctl.c:939 n_tty_ioctl+0x47/0x2e0 drivers/tty/n_tty.c:2466 tty_ioctl+0x5af/0x13c0 drivers/tty/tty_io.c:2670 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 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 *** 5 locks held by syz-executor.3/30460: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284 #1: (&o_tty->termios_rwsem/1){++++}, at: [] tty_set_termios+0xd3/0x810 drivers/tty/tty_ioctl.c:327 #2: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref+0x1b/0x80 drivers/tty/tty_ldisc.c:305 #3: (&ldata->output_lock){+.+.}, at: [] process_echoes+0x9f/0x1a0 drivers/tty/n_tty.c:809 #4: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xdb/0x1d0 drivers/tty/pty.c:120 stack backtrace: CPU: 1 PID: 30460 Comm: syz-executor.3 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit+0x367/0x620 kernel/printk/printk.c:1922 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 fail_dump lib/fault-inject.c:44 [inline] should_fail.cold+0xdf/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x6d/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc+0xc0/0x270 drivers/tty/tty_buffer.c:169 __tty_buffer_request_room+0x12c/0x290 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8b/0x210 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x10d/0x1d0 drivers/tty/pty.c:122 tty_put_char+0xfe/0x120 drivers/tty/tty_io.c:2885 __process_echoes+0x134/0x8c0 drivers/tty/n_tty.c:746 process_echoes+0xe9/0x1a0 drivers/tty/n_tty.c:811 n_tty_set_termios+0x60f/0xcc0 drivers/tty/n_tty.c:1870 tty_set_termios+0x5d5/0x810 drivers/tty/tty_ioctl.c:340 set_termios.part.0+0x244/0x3f0 drivers/tty/tty_ioctl.c:413 set_termios drivers/tty/tty_ioctl.c:367 [inline] tty_mode_ioctl+0x94b/0xa80 drivers/tty/tty_ioctl.c:780 n_tty_ioctl_helper+0x44/0x350 drivers/tty/tty_ioctl.c:939 n_tty_ioctl+0x47/0x2e0 drivers/tty/n_tty.c:2466 tty_ioctl+0x5af/0x13c0 drivers/tty/tty_io.c:2670 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007f8d15464c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219 RDX: 0000000020000040 RSI: 0000000000005406 RDI: 0000000000000003 RBP: 00007f8d15464ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdab7531af R14: 00007f8d154659c0 R15: 000000000119bf8c UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 30492 Comm: syz-executor.3 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x6d/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc+0xc0/0x270 drivers/tty/tty_buffer.c:169 __tty_buffer_request_room+0x12c/0x290 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8b/0x210 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x10d/0x1d0 drivers/tty/pty.c:122 tty_put_char+0xfe/0x120 drivers/tty/tty_io.c:2885 __process_echoes+0x134/0x8c0 drivers/tty/n_tty.c:746 process_echoes+0xe9/0x1a0 drivers/tty/n_tty.c:811 n_tty_set_termios+0x60f/0xcc0 drivers/tty/n_tty.c:1870 tty_set_termios+0x5d5/0x810 drivers/tty/tty_ioctl.c:340 set_termios.part.0+0x244/0x3f0 drivers/tty/tty_ioctl.c:413 set_termios drivers/tty/tty_ioctl.c:367 [inline] tty_mode_ioctl+0x94b/0xa80 drivers/tty/tty_ioctl.c:780 n_tty_ioctl_helper+0x44/0x350 drivers/tty/tty_ioctl.c:939 n_tty_ioctl+0x47/0x2e0 drivers/tty/n_tty.c:2466 tty_ioctl+0x5af/0x13c0 drivers/tty/tty_io.c:2670 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007f8d15464c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219 RDX: 0000000020000040 RSI: 0000000000005406 RDI: 0000000000000003 RBP: 00007f8d15464ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdab7531af R14: 00007f8d154659c0 R15: 000000000119bf8c UDF-fs: bad mount option "unhde" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 30575 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] SYSC_memfd_create mm/shmem.c:3738 [inline] SyS_memfd_create+0xbc/0x3c0 mm/shmem.c:3708 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020003000 RCX: 000000000045e219 RDX: 00007fb9b7152ad0 RSI: 0000000000000000 RDI: 00000000004c2c87 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020001940 R14: 0000000020003000 R15: 0000000020003100 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed CPU: 1 PID: 30608 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 __shmem_file_setup.part.0+0xcb/0x3c0 mm/shmem.c:4260 __shmem_file_setup mm/shmem.c:4248 [inline] shmem_file_setup mm/shmem.c:4315 [inline] SYSC_memfd_create mm/shmem.c:3768 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3708 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020003000 RCX: 000000000045e219 RDX: 00007fb9b7152ad0 RSI: 0000000000000000 RDI: 00000000004c2c87 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020001940 R14: 0000000020003000 R15: 0000000020003100 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: Scanning with blocksize 4096 failed CPU: 1 PID: 30648 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3888 alloc_inode+0x5d/0x170 fs/inode.c:210 new_inode_pseudo fs/inode.c:899 [inline] new_inode+0x1d/0xf0 fs/inode.c:928 shmem_get_inode+0x8b/0x890 mm/shmem.c:2176 __shmem_file_setup.part.0+0x104/0x3c0 mm/shmem.c:4266 __shmem_file_setup mm/shmem.c:4248 [inline] shmem_file_setup mm/shmem.c:4315 [inline] SYSC_memfd_create mm/shmem.c:3768 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3708 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020003000 RCX: 000000000045e219 RDX: 00007fb9b7152ad0 RSI: 0000000000000000 RDI: 00000000004c2c87 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020001940 R14: 0000000020003000 R15: 0000000020003100 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ip6_tables: ip6tables: counters copy to user failed while replacing table UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed CPU: 1 PID: 30699 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] get_empty_filp+0x86/0x3e0 fs/file_table.c:123 alloc_file+0x23/0x440 fs/file_table.c:164 __shmem_file_setup.part.0+0x198/0x3c0 mm/shmem.c:4278 __shmem_file_setup mm/shmem.c:4248 [inline] shmem_file_setup mm/shmem.c:4315 [inline] SYSC_memfd_create mm/shmem.c:3768 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3708 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020003000 RCX: 000000000045e219 RDX: 00007fb9b7152ad0 RSI: 0000000000000000 RDI: 00000000004c2c87 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020001940 R14: 0000000020003000 R15: 0000000020003100 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 print_req_error: I/O error, dev loop5, sector 0 CPU: 1 PID: 30832 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline] apparmor_file_alloc_security+0x129/0x800 security/apparmor/lsm.c:431 security_file_alloc+0x66/0xa0 security/security.c:874 get_empty_filp+0x15c/0x3e0 fs/file_table.c:129 alloc_file+0x23/0x440 fs/file_table.c:164 __shmem_file_setup.part.0+0x198/0x3c0 mm/shmem.c:4278 __shmem_file_setup mm/shmem.c:4248 [inline] shmem_file_setup mm/shmem.c:4315 [inline] SYSC_memfd_create mm/shmem.c:3768 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3708 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e219 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020003000 RCX: 000000000045e219 RDX: 00007fb9b7152ad0 RSI: 0000000000000000 RDI: 00000000004c2c87 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020001940 R14: 0000000020003000 R15: 0000000020003100 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 base_sock_release(ffff8880452d0a00) sk=ffff8880618a7440 CPU: 1 PID: 30930 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 getname_flags+0xc8/0x550 fs/namei.c:138 do_sys_open+0x1ce/0x410 fs/open.c:1075 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x417d11 RSP: 002b:00007fb9b7152a10 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000417d11 RDX: 00007fb9b7152ad0 RSI: 0000000000000002 RDI: 00007fb9b7152ad0 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 base_sock_release(ffff888097594a40) sk=ffff888060c19440 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 30964 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2898 [inline] prepare_alloc_pages mm/page_alloc.c:4131 [inline] __alloc_pages_nodemask+0x22c/0x2720 mm/page_alloc.c:4179 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x8f/0x420 mm/slab.c:2676 cache_alloc_refill+0x273/0x350 mm/slab.c:3043 ____cache_alloc mm/slab.c:3125 [inline] __do_cache_alloc mm/slab.c:3347 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x333/0x3c0 mm/slab.c:3550 getname_flags+0xc8/0x550 fs/namei.c:138 do_sys_open+0x1ce/0x410 fs/open.c:1075 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x417d11 RSP: 002b:00007fb9b7152a10 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000417d11 RDX: 00007fb9b7152ad0 RSI: 0000000000000002 RDI: 00007fb9b7152ad0 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: bad mount option "un" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 31053 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline] apparmor_file_alloc_security+0x129/0x800 security/apparmor/lsm.c:431 security_file_alloc+0x66/0xa0 security/security.c:874 get_empty_filp+0x15c/0x3e0 fs/file_table.c:129 path_openat+0x84/0x2970 fs/namei.c:3545 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x417d11 RSP: 002b:00007fb9b7152a10 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000417d11 RDX: 00007fb9b7152ad0 RSI: 0000000000000002 RDI: 00007fb9b7152ad0 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 IPVS: set_ctl: invalid protocol: 8 172.30.0.5:20004 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found CPU: 0 PID: 31119 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 UDF-fs: Scanning with blocksize 512 failed Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found should_failslab+0xd6/0x130 mm/failslab.c:32 UDF-fs: Scanning with blocksize 1024 failed slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline] apparmor_file_alloc_security+0x129/0x800 security/apparmor/lsm.c:431 security_file_alloc+0x66/0xa0 security/security.c:874 get_empty_filp+0x15c/0x3e0 fs/file_table.c:129 path_openat+0x84/0x2970 fs/namei.c:3545 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x417d11 RSP: 002b:00007fb9b7152a10 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000417d11 RDX: 00007fb9b7152ad0 RSI: 0000000000000002 RDI: 00007fb9b7152ad0 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed IPVS: set_ctl: invalid protocol: 8 172.30.0.5:20004 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed CPU: 1 PID: 31184 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] __kthread_create_on_node+0xbe/0x3a0 kernel/kthread.c:277 kthread_create_on_node+0xa8/0xd0 kernel/kthread.c:365 loop_prepare_queue drivers/block/loop.c:877 [inline] loop_set_fd drivers/block/loop.c:922 [inline] lo_ioctl+0xcd9/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 NILFS (loop5): couldn't find nilfs on the device UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found CPU: 1 PID: 31256 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: UDF-fs: Scanning with blocksize 512 failed __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node fs/kernfs/dir.c:677 [inline] kernfs_create_dir_ns+0x8c/0x200 fs/kernfs/dir.c:998 kernfs_create_dir include/linux/kernfs.h:502 [inline] internal_create_group+0xe9/0x710 fs/sysfs/group.c:124 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found XFS (loop1): unknown mount option [fscontext=root]. UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 4096 failed XFS (loop1): unknown mount option [fscontext=root]. UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed print_req_error: I/O error, dev loop1, sector 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 31343 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 radix_tree_node_alloc.constprop.0+0x1b0/0x2f0 lib/radix-tree.c:397 idr_get_free_cmn+0x595/0x8d0 lib/radix-tree.c:2170 idr_get_free include/linux/radix-tree.h:369 [inline] idr_alloc_cmn+0xe8/0x1e0 lib/idr.c:24 idr_alloc include/linux/idr.h:116 [inline] idr_alloc_cyclic+0xc2/0x1d0 lib/idr.c:56 __kernfs_new_node+0xaf/0x470 fs/kernfs/dir.c:638 kernfs_new_node fs/kernfs/dir.c:677 [inline] kernfs_create_dir_ns+0x8c/0x200 fs/kernfs/dir.c:998 kernfs_create_dir include/linux/kernfs.h:502 [inline] internal_create_group+0xe9/0x710 fs/sysfs/group.c:124 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed device lo entered promiscuous mode Y4`Ҙ: renamed from lo UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed CPU: 1 PID: 31446 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found CPU: 1 PID: 31529 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 UDF-fs: Scanning with blocksize 512 failed CPU: 1 PID: 31573 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 31670 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 radix_tree_node_alloc.constprop.0+0x1b0/0x2f0 lib/radix-tree.c:397 idr_get_free_cmn+0x595/0x8d0 lib/radix-tree.c:2170 idr_get_free include/linux/radix-tree.h:369 [inline] idr_alloc_cmn+0xe8/0x1e0 lib/idr.c:24 idr_alloc include/linux/idr.h:116 [inline] idr_alloc_cyclic+0xc2/0x1d0 lib/idr.c:56 __kernfs_new_node+0xaf/0x470 fs/kernfs/dir.c:638 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 31736 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x6f/0x470 fs/kernfs/dir.c:632 kernfs_new_node+0x7b/0xe0 fs/kernfs/dir.c:677 __kernfs_create_file+0x3d/0x320 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e1/0x450 fs/sysfs/file.c:307 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x22b/0x710 fs/sysfs/group.c:134 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found loop_sysfs_init drivers/block/loop.c:821 [inline] loop_set_fd drivers/block/loop.c:946 [inline] lo_ioctl+0x1137/0x1cd0 drivers/block/loop.c:1417 UDF-fs: Scanning with blocksize 512 failed __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 31819 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] kobject_get_path+0xb5/0x230 lib/kobject.c:154 kobject_uevent_env+0x230/0xf40 lib/kobject_uevent.c:402 loop_set_fd drivers/block/loop.c:948 [inline] lo_ioctl+0x11a6/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 31913 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x154 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] kobject_get_path+0xb5/0x230 lib/kobject.c:154 kobject_uevent_env+0x230/0xf40 lib/kobject_uevent.c:402 loop_set_fd drivers/block/loop.c:948 [inline] lo_ioctl+0x11a6/0x1cd0 drivers/block/loop.c:1417 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x540/0x1830 block/ioctl.c:594 block_ioctl+0xd9/0x120 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e087 RSP: 002b:00007fb9b7152a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000045e087 RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000007 RBP: 0000000000000000 R08: 00007fb9b7152ac8 R09: 0000000000000000 R10: 00007fb9b7152acc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000020003010 UDF-fs: bad mount option "u" or missing value UDF-fs: bad mount option "u" or missing value UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop2): udf_load_vrs: No VRS found