RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f29b5c9d6d4 R13: 00000000004c62a7 R14: 00000000004dd830 R15: 0000000000000005 ====================================================== WARNING: possible circular locking dependency detected 4.19.94-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/20672 is trying to acquire lock: 0000000075e2c715 (console_owner){-.-.}, at: console_trylock_spinning kernel/printk/printk.c:1669 [inline] 0000000075e2c715 (console_owner){-.-.}, at: vprintk_emit+0x3d5/0x6d0 kernel/printk/printk.c:1936 but task is already holding lock: 000000005d6c1268 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 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+0x95/0xcd kernel/locking/spinlock.c:152 tty_port_tty_get+0x22/0x90 drivers/tty/tty_port.c:288 tty_port_default_wakeup+0x16/0x40 drivers/tty/tty_port.c:47 tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:390 uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:103 serial8250_tx_chars+0x495/0xaf0 drivers/tty/serial/8250/8250_port.c:1806 serial8250_handle_irq.part.0+0x261/0x2b0 drivers/tty/serial/8250/8250_port.c:1879 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1865 [inline] serial8250_default_handle_irq+0xc0/0x150 drivers/tty/serial/8250/8250_port.c:1895 serial8250_interrupt+0xfc/0x1e0 drivers/tty/serial/8250/8250_core.c:125 __handle_irq_event_percpu+0x144/0x8f0 kernel/irq/handle.c:149 handle_irq_event_percpu+0x74/0x160 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x134 kernel/irq/handle.c:206 handle_edge_irq+0x25e/0x8d0 kernel/irq/chip.c:797 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline] handle_irq+0x39/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x99/0x1d0 arch/x86/kernel/irq.c:246 ret_from_intr+0x0/0x1e native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:556 default_idle_call+0x36/0x90 kernel/sched/idle.c:93 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x30c/0x4d0 kernel/sched/idle.c:263 cpu_startup_entry+0xc8/0xe0 kernel/sched/idle.c:369 rest_init+0x219/0x222 init/main.c:441 start_kernel+0x88c/0x8c5 init/main.c:737 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #1 (&port_lock_key){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152 serial8250_console_write+0x7ca/0x9f0 drivers/tty/serial/8250/8250_port.c:3247 univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:590 call_console_drivers kernel/printk/printk.c:1736 [inline] console_unlock+0xbdf/0x10d0 kernel/printk/printk.c:2429 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 register_console+0x77f/0xb90 kernel/printk/printk.c:2745 univ8250_console_init+0x3e/0x4b drivers/tty/serial/8250/8250_core.c:685 console_init+0x4f7/0x761 kernel/printk/printk.c:2831 start_kernel+0x59c/0x8c5 init/main.c:660 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:471 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #0 (console_owner){-.-.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 console_trylock_spinning kernel/printk/printk.c:1690 [inline] vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 fail_dump lib/fault-inject.c:44 [inline] should_fail+0x6f1/0x85c lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x71/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:170 [inline] __tty_buffer_request_room+0x1fb/0x5c0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x1f0 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x133/0x200 drivers/tty/pty.c:122 tty_put_char+0x130/0x160 drivers/tty/tty_io.c:2888 __process_echoes+0x5c8/0xa40 drivers/tty/n_tty.c:726 process_echoes+0xfc/0x170 drivers/tty/n_tty.c:809 n_tty_set_termios+0xb36/0xe70 drivers/tty/n_tty.c:1868 tty_set_termios+0x659/0x8c0 drivers/tty/tty_ioctl.c:341 set_termios drivers/tty/tty_ioctl.c:414 [inline] set_termios+0x378/0x5a0 drivers/tty/tty_ioctl.c:362 tty_mode_ioctl+0x5c7/0x8c0 drivers/tty/tty_ioctl.c:745 n_tty_ioctl_helper+0x59/0x3b0 drivers/tty/tty_ioctl.c:940 n_tty_ioctl+0x59/0x360 drivers/tty/n_tty.c:2464 tty_ioctl+0x8b5/0x1510 drivers/tty/tty_io.c:2678 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe 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.2/20672: #0: 0000000010f9090e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 0000000064769a30 (&o_tty->termios_rwsem/1){++++}, at: tty_set_termios+0x105/0x8c0 drivers/tty/tty_ioctl.c:328 #2: 0000000010f9090e (&tty->ldisc_sem){++++}, at: tty_ldisc_ref+0x22/0x90 drivers/tty/tty_ldisc.c:293 #3: 0000000074bcd8b1 (&ldata->output_lock){+.+.}, at: process_echoes+0xb6/0x170 drivers/tty/n_tty.c:807 #4: 000000005d6c1268 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 drivers/tty/pty.c:120 stack backtrace: CPU: 1 PID: 20672 Comm: syz-executor.2 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x2e19/0x49c0 kernel/locking/lockdep.c:3411 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 console_trylock_spinning kernel/printk/printk.c:1690 [inline] vprintk_emit+0x412/0x6d0 kernel/printk/printk.c:1936 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2012 fail_dump lib/fault-inject.c:44 [inline] should_fail+0x6f1/0x85c lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x71/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:170 [inline] __tty_buffer_request_room+0x1fb/0x5c0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x1f0 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x133/0x200 drivers/tty/pty.c:122 tty_put_char+0x130/0x160 drivers/tty/tty_io.c:2888 __process_echoes+0x5c8/0xa40 drivers/tty/n_tty.c:726 process_echoes+0xfc/0x170 drivers/tty/n_tty.c:809 n_tty_set_termios+0xb36/0xe70 drivers/tty/n_tty.c:1868 tty_set_termios+0x659/0x8c0 drivers/tty/tty_ioctl.c:341 set_termios drivers/tty/tty_ioctl.c:414 [inline] set_termios+0x378/0x5a0 drivers/tty/tty_ioctl.c:362 tty_mode_ioctl+0x5c7/0x8c0 drivers/tty/tty_ioctl.c:745 n_tty_ioctl_helper+0x59/0x3b0 drivers/tty/tty_ioctl.c:940 n_tty_ioctl+0x59/0x360 drivers/tty/n_tty.c:2464 tty_ioctl+0x8b5/0x1510 drivers/tty/tty_io.c:2678 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45af49 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f29b5c9cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f29b5c9cc90 RCX: 000000000045af49 RDX: 0000000020000040 RSI: 0000000000005404 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f29b5c9d6d4 R13: 00000000004c62a7 R14: 00000000004dd830 R15: 0000000000000005 XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 XFS (loop5): sunit and swidth must be specified together CPU: 1 PID: 20688 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 getname_flags fs/namei.c:140 [inline] getname_flags+0xd6/0x5b0 fs/namei.c:129 getname+0x1a/0x20 fs/namei.c:211 do_sys_open+0x2c9/0x550 fs/open.c:1082 __do_sys_open fs/open.c:1106 [inline] __se_sys_open fs/open.c:1101 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1101 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x414ce1 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f27d002ea60 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 0000000000414ce1 RDX: 00007f27d002eb0a RSI: 0000000000000002 RDI: 00007f27d002eb00 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20709 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3086 [inline] prepare_alloc_pages mm/page_alloc.c:4344 [inline] __alloc_pages_nodemask+0x1ee/0x750 mm/page_alloc.c:4391 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2682 cache_alloc_refill mm/slab.c:3049 [inline] ____cache_alloc mm/slab.c:3132 [inline] ____cache_alloc mm/slab.c:3115 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] kmem_cache_alloc+0x63b/0x700 mm/slab.c:3557 getname_flags fs/namei.c:140 [inline] getname_flags+0xd6/0x5b0 fs/namei.c:129 getname+0x1a/0x20 fs/namei.c:211 do_sys_open+0x2c9/0x550 fs/open.c:1082 __do_sys_open fs/open.c:1106 [inline] __se_sys_open fs/open.c:1101 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1101 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x414ce1 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f27d002ea60 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 0000000000414ce1 RDX: 00007f27d002eb0a RSI: 0000000000000002 RDI: 00007f27d002eb00 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop3): Invalid superblock magic number XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20748 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3086 [inline] prepare_alloc_pages mm/page_alloc.c:4344 [inline] __alloc_pages_nodemask+0x1ee/0x750 mm/page_alloc.c:4391 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0x91/0x8c0 mm/slab.c:2682 cache_alloc_refill mm/slab.c:3049 [inline] ____cache_alloc mm/slab.c:3132 [inline] ____cache_alloc mm/slab.c:3115 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] kmem_cache_alloc+0x63b/0x700 mm/slab.c:3557 getname_flags fs/namei.c:140 [inline] getname_flags+0xd6/0x5b0 fs/namei.c:129 getname+0x1a/0x20 fs/namei.c:211 do_sys_open+0x2c9/0x550 fs/open.c:1082 __do_sys_open fs/open.c:1106 [inline] __se_sys_open fs/open.c:1101 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1101 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x414ce1 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f27d002ea60 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 0000000000414ce1 RDX: 00007f27d002eb0a RSI: 0000000000000002 RDI: 00007f27d002eb00 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number XFS (loop5): sunit and swidth must be specified together EXT4-fs (loop0): VFS: Can't find ext4 filesystem FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20811 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] file_alloc_security security/selinux/hooks.c:390 [inline] selinux_file_alloc_security+0xb4/0x190 security/selinux/hooks.c:3597 security_file_alloc+0x63/0xa0 security/security.c:884 __alloc_file+0xcf/0x330 fs/file_table.c:105 alloc_empty_file+0x72/0x170 fs/file_table.c:150 path_openat+0xef/0x45e0 fs/namei.c:3523 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x550 fs/open.c:1088 __do_sys_open fs/open.c:1106 [inline] __se_sys_open fs/open.c:1101 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1101 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x414ce1 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 0a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f27d002ea60 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 0000000000414ce1 RDX: 00007f27d002eb0a RSI: 0000000000000002 RDI: 00007f27d002eb00 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20828 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] __kthread_create_on_node+0xf2/0x460 kernel/kthread.c:291 kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:379 loop_prepare_queue drivers/block/loop.c:906 [inline] loop_set_fd drivers/block/loop.c:956 [inline] lo_ioctl+0xaf2/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 EXT4-fs (loop0): VFS: Can't find ext4 filesystem FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 20855 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 kernfs_create_dir_ns+0x52/0x160 fs/kernfs/dir.c:1019 internal_create_group+0x1cb/0xc30 fs/sysfs/group.c:135 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20920 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 20986 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21066 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21134 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.4'. XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21183 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21238 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2ae/0x700 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xef/0x6f0 fs/kernfs/dir.c:633 kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x33b fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x383/0xc30 fs/sysfs/group.c:147 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:173 loop_sysfs_init drivers/block/loop.c:850 [inline] loop_set_fd drivers/block/loop.c:980 [inline] lo_ioctl+0xf8f/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop3): Invalid superblock magic number FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21296 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc_trace+0x2cc/0x760 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] kobject_uevent_env+0x22c/0x1170 lib/kobject_uevent.c:521 kobject_uevent+0x20/0x30 lib/kobject_uevent.c:639 loop_set_fd drivers/block/loop.c:982 [inline] lo_ioctl+0x100b/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21341 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x2e2/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] kzalloc include/linux/slab.h:709 [inline] kobject_get_path+0xc2/0x1a0 lib/kobject.c:171 kobject_uevent_env+0x251/0x1170 lib/kobject_uevent.c:526 kobject_uevent+0x20/0x30 lib/kobject_uevent.c:639 loop_set_fd drivers/block/loop.c:982 [inline] lo_ioctl+0x100b/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop3): Invalid superblock magic number EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop5): sunit and swidth must be specified together FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21402 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x2e2/0x750 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] kzalloc include/linux/slab.h:709 [inline] kobject_get_path+0xc2/0x1a0 lib/kobject.c:171 kobject_uevent_env+0x251/0x1170 lib/kobject_uevent.c:526 kobject_uevent+0x20/0x30 lib/kobject_uevent.c:639 loop_set_fd drivers/block/loop.c:982 [inline] lo_ioctl+0x100b/0x20e0 drivers/block/loop.c:1553 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xc38/0x1ab6 block/ioctl.c:601 block_ioctl+0xee/0x130 fs/block_dev.c:1894 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45adb7 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f27d002ea68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f27d002ec90 RCX: 000000000045adb7 RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000006 RBP: 000000000075bf20 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 00007f27d002f6d4 R13: 00000000004cbf2b R14: 00000000004e6bd8 R15: 0000000000000004 XFS (loop5): sunit and swidth must be specified together XFS (loop3): Invalid superblock magic number selinux_nlmsg_perm: 69 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=21463 comm=syz-executor.4 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21471 Comm: syz-executor.3 Not tainted 4.19.94-syzkaller #0