RDX: 0000000020000040 RSI: 0000000000005412 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f86c1efc6d4 R13: 00000000004c569b R14: 00000000004db588 R15: 0000000000000005 ====================================================== WARNING: possible circular locking dependency detected 4.14.157-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/2265 is trying to acquire lock: (console_owner){-.-.}, at: [] console_trylock_spinning kernel/printk/printk.c:1658 [inline] (console_owner){-.-.}, at: [] vprintk_emit kernel/printk/printk.c:1922 [inline] (console_owner){-.-.}, at: [] vprintk_emit+0x2f1/0x600 kernel/printk/printk.c:1888 but task is already holding lock: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 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){-.-.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:160 tty_port_tty_get+0x22/0x90 drivers/tty/tty_port.c:287 tty_port_default_wakeup+0x16/0x40 drivers/tty/tty_port.c:46 tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:389 uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:116 serial8250_tx_chars+0x40d/0xa10 drivers/tty/serial/8250/8250_port.c:1810 serial8250_handle_irq.part.0+0x206/0x250 drivers/tty/serial/8250/8250_port.c:1883 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1869 [inline] serial8250_default_handle_irq+0xa1/0x120 drivers/tty/serial/8250/8250_port.c:1899 serial8250_interrupt+0xe9/0x1a0 drivers/tty/serial/8250/8250_core.c:129 __handle_irq_event_percpu+0x125/0x7f0 kernel/irq/handle.c:147 handle_irq_event_percpu+0x65/0x130 kernel/irq/handle.c:187 handle_irq_event+0xa7/0x134 kernel/irq/handle.c:204 handle_edge_irq+0x22b/0x840 kernel/irq/chip.c:770 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x39/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x99/0x1d0 arch/x86/kernel/irq.c:230 ret_from_intr+0x0/0x1e arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:192 spin_unlock_irqrestore include/linux/spinlock.h:372 [inline] uart_write+0x29a/0x4f0 drivers/tty/serial/serial_core.c:625 process_output_block drivers/tty/n_tty.c:595 [inline] n_tty_write+0x38b/0xee0 drivers/tty/n_tty.c:2333 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 redirected_tty_write+0xa3/0xb0 drivers/tty/tty_io.c:1064 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #1 (&port_lock_key){-.-.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:160 serial8250_console_write+0x709/0x930 drivers/tty/serial/8250/8250_port.c:3232 univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:597 call_console_drivers kernel/printk/printk.c:1725 [inline] console_unlock+0x9ba/0xed0 kernel/printk/printk.c:2397 vprintk_emit kernel/printk/printk.c:1923 [inline] vprintk_emit+0x1f9/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 register_console+0x614/0x9e0 kernel/printk/printk.c:2716 univ8250_console_init+0x33/0x3f drivers/tty/serial/8250/8250_core.c:692 console_init+0x4d/0x5d kernel/printk/printk.c:2797 start_kernel+0x43c/0x6fd init/main.c:635 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:380 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #0 (console_owner){-.-.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit kernel/printk/printk.c:1922 [inline] vprintk_emit+0x32e/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 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+0xe4/0x159 lib/fault-inject.c:149 should_failslab+0xdb/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+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 tty_put_char+0x108/0x130 drivers/tty/tty_io.c:2880 __process_echoes+0x2ce/0x8a0 drivers/tty/n_tty.c:708 flush_echoes drivers/tty/n_tty.c:829 [inline] __receive_buf drivers/tty/n_tty.c:1648 [inline] n_tty_receive_buf_common+0x998/0x2410 drivers/tty/n_tty.c:1742 n_tty_receive_buf+0x31/0x3b drivers/tty/n_tty.c:1771 tiocsti drivers/tty/tty_io.c:2186 [inline] tty_ioctl+0xded/0x1320 drivers/tty/tty_io.c:2572 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 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 *** 4 locks held by syz-executor.3/2265: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&o_tty->termios_rwsem/1){++++}, at: [] n_tty_receive_buf_common+0x92/0x2410 drivers/tty/n_tty.c:1705 #2: (&ldata->output_lock){+.+.}, at: [] flush_echoes drivers/tty/n_tty.c:827 [inline] #2: (&ldata->output_lock){+.+.}, at: [] __receive_buf drivers/tty/n_tty.c:1648 [inline] #2: (&ldata->output_lock){+.+.}, at: [] n_tty_receive_buf_common+0x958/0x2410 drivers/tty/n_tty.c:1742 #3: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 drivers/tty/pty.c:120 stack backtrace: CPU: 0 PID: 2265 Comm: syz-executor.3 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit kernel/printk/printk.c:1922 [inline] vprintk_emit+0x32e/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 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+0xe4/0x159 lib/fault-inject.c:149 should_failslab+0xdb/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+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 tty_put_char+0x108/0x130 drivers/tty/tty_io.c:2880 __process_echoes+0x2ce/0x8a0 drivers/tty/n_tty.c:708 flush_echoes drivers/tty/n_tty.c:829 [inline] __receive_buf drivers/tty/n_tty.c:1648 [inline] n_tty_receive_buf_common+0x998/0x2410 drivers/tty/n_tty.c:1742 n_tty_receive_buf+0x31/0x3b drivers/tty/n_tty.c:1771 tiocsti drivers/tty/tty_io.c:2186 [inline] tty_ioctl+0xded/0x1320 drivers/tty/tty_io.c:2572 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f86c1efbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f86c1efbc90 RCX: 000000000045a679 RDX: 0000000020000040 RSI: 0000000000005412 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f86c1efc6d4 R13: 00000000004c569b R14: 00000000004db588 R15: 0000000000000005 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env CPU: 0 PID: 2272 Comm: syz-executor.0 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' should_failslab+0xdb/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_track_caller+0x6d/0x790 mm/slab.c:3735 kstrdup+0x3a/0x70 mm/util.c:56 security_netlbl_sid_to_secattr+0xb5/0x1a0 security/selinux/ss/services.c:3519 selinux_netlbl_sock_genattr+0xec/0x3e0 security/selinux/netlabel.c:94 selinux_netlbl_socket_post_create+0x6a/0x120 security/selinux/netlabel.c:341 selinux_socket_post_create+0x44f/0x680 security/selinux/hooks.c:4420 security_socket_post_create+0x8b/0xc0 security/security.c:1352 __sock_create+0x4a1/0x620 net/socket.c:1291 sock_create_kern+0x3b/0x50 net/socket.c:1321 rxrpc_open_socket net/rxrpc/local_object.c:117 [inline] rxrpc_lookup_local+0x9c4/0x14a0 net/rxrpc/local_object.c:256 rxrpc_sendmsg+0x3b1/0x610 net/rxrpc/af_rxrpc.c:525 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x349/0x840 net/socket.c:2062 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env __sys_sendmmsg+0x152/0x3a0 net/socket.c:2152 SYSC_sendmmsg net/socket.c:2183 [inline] SyS_sendmmsg+0x35/0x60 net/socket.c:2178 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f9c0c858c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env RAX: ffffffffffffffda RBX: 00007f9c0c858c90 RCX: 000000000045a679 RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9c0c8596d4 R13: 00000000004c8da8 R14: 00000000004e0688 R15: 0000000000000004 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 0 PID: 2283 Comm: syz-executor.5 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2891 [inline] prepare_alloc_pages mm/page_alloc.c:4124 [inline] __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] __get_free_pages+0xf/0x40 mm/page_alloc.c:4226 get_zeroed_page+0x11/0x20 mm/page_alloc.c:4235 __dev_alloc_name+0xe6/0x2c0 net/core/dev.c:1076 dev_alloc_name_ns net/core/dev.c:1144 [inline] dev_get_valid_name+0xa3/0x1c0 net/core/dev.c:1159 register_netdevice+0x224/0xca0 net/core/dev.c:7592 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' CPU: 0 PID: 2297 Comm: syz-executor.5 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/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_track_caller+0x2ec/0x790 mm/slab.c:3735 kstrdup+0x3a/0x70 mm/util.c:56 kstrdup_const+0x48/0x60 mm/util.c:77 kvasprintf_const+0xf7/0x170 lib/kasprintf.c:48 kobject_set_name_vargs+0x5b/0x150 lib/kobject.c:263 dev_set_name+0xa4/0xc0 drivers/base/core.c:1719 netdev_register_kobject+0xc3/0x3a0 net/core/net-sysfs.c:1580 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 0 PID: 2341 Comm: syz-executor.5 Not tainted 4.14.157-syzkaller #0 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x47/0x780 mm/slab.c:3550 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kmem_cache_zalloc include/linux/slab.h:651 [inline] fill_pool lib/debugobjects.c:110 [inline] __debug_object_init+0x5b8/0x8e0 lib/debugobjects.c:341 debug_object_init+0x16/0x20 lib/debugobjects.c:393 debug_timer_init kernel/time/timer.c:687 [inline] debug_init kernel/time/timer.c:736 [inline] init_timer_key+0x31/0x300 kernel/time/timer.c:780 pm_runtime_init+0x2e9/0x400 drivers/base/power/runtime.c:1503 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' device_pm_init drivers/base/power/power.h:183 [inline] device_initialize+0x18d/0x430 drivers/base/core.c:1422 netdev_register_kobject+0x2f/0x3a0 net/core/net-sysfs.c:1575 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'sit2' (ffff8880a129c8b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'sit2' (ffff8880a129c8b0): kobject_uevent_env kobject: 'sit2' (ffff8880a129c8b0): fill_kobj_path: path = '/devices/virtual/net/sit2' kobject: 'queues' (ffff888014e46a48): kobject_add_internal: parent: 'sit2', set: '' kobject: 'queues' (ffff888014e46a48): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'queues' (ffff888014e46a48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'rx-0' (ffff88809bf0ab50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809bf0ab50): kobject_uevent_env kobject: 'rx-0' (ffff88809bf0ab50): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/rx-0' kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-0' (ffff88808bb27c98): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808bb27c98): kobject_uevent_env kobject: 'tx-0' (ffff88808bb27c98): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/tx-0' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'sit3' (ffff88807fdf0c70): kobject_add_internal: parent: 'net', set: 'devices' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' CPU: 0 PID: 2377 Comm: syz-executor.5 Not tainted 4.14.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2ec/0x790 mm/slab.c:3735 kstrdup+0x3a/0x70 mm/util.c:56 kstrdup_const+0x48/0x60 mm/util.c:77 __kernfs_new_node+0x2f/0x420 fs/kernfs/dir.c:629 kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 kernfs_create_dir_ns+0x41/0x140 fs/kernfs/dir.c:999 sysfs_create_dir_ns+0xbe/0x1d0 fs/sysfs/dir.c:55 create_dir lib/kobject.c:71 [inline] kobject_add_internal.part.0.cold+0x114/0x5ae lib/kobject.c:229 kobject_add_internal lib/kobject.c:205 [inline] kobject_add_varg lib/kobject.c:364 [inline] kobject_add+0x11f/0x180 lib/kobject.c:409 device_add+0x383/0x1490 drivers/base/core.c:1861 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject_add_internal failed for sit3 (error: -12 parent: net) kobject: 'sit11' (ffff888096a04730): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'sit11' (ffff888096a04730): kobject_uevent_env kobject: 'sit11' (ffff888096a04730): fill_kobj_path: path = '/devices/virtual/net/sit11' kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (ffff88803c405248): kobject_add_internal: parent: 'sit11', set: '' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'queues' (ffff88803c405248): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff88803c405248): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a48aeb50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a48aeb50): kobject_uevent_env kobject: 'rx-0' (ffff8880a48aeb50): fill_kobj_path: path = '/devices/virtual/net/sit11/queues/rx-0' kobject: 'tx-0' (ffff8880959b22d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'tx-0' (ffff8880959b22d8): kobject_uevent_env kobject: 'tx-0' (ffff8880959b22d8): fill_kobj_path: path = '/devices/virtual/net/sit11/queues/tx-0' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 2397 Comm: syz-executor.5 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2ec/0x790 mm/slab.c:3735 kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kstrdup+0x3a/0x70 mm/util.c:56 kstrdup_const+0x48/0x60 mm/util.c:77 kvasprintf_const+0xf7/0x170 lib/kasprintf.c:48 kobject_set_name_vargs+0x5b/0x150 lib/kobject.c:263 dev_set_name+0xa4/0xc0 drivers/base/core.c:1719 netdev_register_kobject+0xc3/0x3a0 net/core/net-sysfs.c:1580 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'sit3' (ffff8880a4d407b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 0 PID: 2425 Comm: syz-executor.5 Not tainted 4.14.157-syzkaller #0 kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x70/0x420 fs/kernfs/dir.c:633 kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 __kernfs_create_file+0x46/0x323 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e4/0x450 fs/sysfs/file.c:307 sysfs_create_file_ns+0x8e/0xb0 fs/sysfs/file.c:334 sysfs_create_file include/linux/sysfs.h:515 [inline] device_create_file+0xd7/0x110 drivers/base/core.c:1312 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env device_add+0x3be/0x1490 drivers/base/core.c:1871 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'sit3' (ffff8880a4d407b0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'sit3' (ffff8880a4d407b0): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'sit123' (ffff8880935973b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit123' (ffff8880935973b0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'sit123' (ffff8880935973b0): fill_kobj_path: path = '/devices/virtual/net/sit123' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (ffff8880a998e548): kobject_add_internal: parent: 'sit123', set: '' kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'queues' (ffff8880a998e548): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (ffff8880a998e548): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'rx-0' (ffff88805ab63850): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff88805ab63850): kobject_uevent_env kobject: 'rx-0' (ffff88805ab63850): fill_kobj_path: path = '/devices/virtual/net/sit123/queues/rx-0' kobject: 'tx-0' (ffff88808532b2d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808532b2d8): kobject_uevent_env kobject: 'tx-0' (ffff88808532b2d8): fill_kobj_path: path = '/devices/virtual/net/sit123/queues/tx-0' kobject: 'sit3' (ffff8880a56aaf30): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' CPU: 0 PID: 2457 Comm: syz-executor.5 Not tainted 4.14.157-syzkaller #0 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env 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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x70/0x420 fs/kernfs/dir.c:633 kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env __kernfs_create_file+0x46/0x323 fs/kernfs/file.c:989 sysfs_add_file_mode_ns+0x1e4/0x450 fs/sysfs/file.c:307 sysfs_create_file_ns+0x8e/0xb0 fs/sysfs/file.c:334 sysfs_create_file include/linux/sysfs.h:515 [inline] device_create_file+0xd7/0x110 drivers/base/core.c:1312 device_add+0x3be/0x1490 drivers/base/core.c:1871 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'sit3' (ffff8880a56aaf30): kobject_uevent_env kobject: 'sit3' (ffff8880a56aaf30): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'sit124' (ffff88808fbb29b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit124' (ffff88808fbb29b0): kobject_uevent_env kobject: 'sit124' (ffff88808fbb29b0): fill_kobj_path: path = '/devices/virtual/net/sit124' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff88803c40e448): kobject_add_internal: parent: 'sit124', set: '' kobject: 'queues' (ffff88803c40e448): kobject_uevent_env kobject: 'queues' (ffff88803c40e448): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (ffff888088a4c3d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'rx-0' (ffff888088a4c3d0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (ffff888088a4c3d0): fill_kobj_path: path = '/devices/virtual/net/sit124/queues/rx-0' kobject: 'tx-0' (ffff88805abe35d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88805abe35d8): kobject_uevent_env kobject: 'tx-0' (ffff88805abe35d8): fill_kobj_path: path = '/devices/virtual/net/sit124/queues/tx-0' kobject: 'sit3' (ffff8880a8b9f2f0): kobject_add_internal: parent: 'net', set: 'devices' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env CPU: 0 PID: 2494 Comm: syz-executor.5 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2ec/0x790 mm/slab.c:3735 kstrdup+0x3a/0x70 mm/util.c:56 kstrdup_const+0x48/0x60 mm/util.c:77 __kernfs_new_node+0x2f/0x420 fs/kernfs/dir.c:629 kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 kernfs_create_link+0x2c/0x170 fs/kernfs/symlink.c:32 sysfs_do_create_link_sd.isra.0+0x90/0x120 fs/sysfs/symlink.c:44 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:92 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' device_add_class_symlinks drivers/base/core.c:1673 [inline] device_add+0x735/0x1490 drivers/base/core.c:1875 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'sit3' (ffff8880a8b9f2f0): kobject_uevent_env kobject: 'sit3' (ffff8880a8b9f2f0): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'sit125' (ffff88808813e7f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit125' (ffff88808813e7f0): kobject_uevent_env kobject: 'sit125' (ffff88808813e7f0): fill_kobj_path: path = '/devices/virtual/net/sit125' kobject: 'queues' (ffff88808f842348): kobject_add_internal: parent: 'sit125', set: '' kobject: 'queues' (ffff88808f842348): kobject_uevent_env kobject: 'queues' (ffff88808f842348): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'rx-0' (ffff88808f84a310): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (ffff88808f84a310): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'rx-0' (ffff88808f84a310): fill_kobj_path: path = '/devices/virtual/net/sit125/queues/rx-0' kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'tx-0' (ffff888081925798): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888081925798): kobject_uevent_env kobject: 'tx-0' (ffff888081925798): fill_kobj_path: path = '/devices/virtual/net/sit125/queues/tx-0' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'sit3' (ffff8880a8d69430): kobject_add_internal: parent: 'net', set: 'devices' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 2537 Comm: syz-executor.5 Not tainted 4.14.157-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+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' should_failslab+0xdb/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_track_caller+0x2ec/0x790 mm/slab.c:3735 kstrdup+0x3a/0x70 mm/util.c:56 kstrdup_const+0x48/0x60 mm/util.c:77 __kernfs_new_node+0x2f/0x420 fs/kernfs/dir.c:629 kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kernfs_create_link+0x2c/0x170 fs/kernfs/symlink.c:32 sysfs_do_create_link_sd.isra.0+0x90/0x120 fs/sysfs/symlink.c:44 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:92 device_add_class_symlinks drivers/base/core.c:1673 [inline] device_add+0x735/0x1490 drivers/base/core.c:1875 netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 register_netdevice+0x814/0xca0 net/core/dev.c:7668 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'sit3' (ffff8880a8d69430): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'sit3' (ffff8880a8d69430): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'sit126' (ffff8880a179d370): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'sit126' (ffff8880a179d370): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'sit126' (ffff8880a179d370): fill_kobj_path: path = '/devices/virtual/net/sit126' kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff888052a9b948): kobject_add_internal: parent: 'sit126', set: '' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'queues' (ffff888052a9b948): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff888052a9b948): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a4db40d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a4db40d0): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'rx-0' (ffff8880a4db40d0): fill_kobj_path: path = '/devices/virtual/net/sit126/queues/rx-0' kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff88808d5920d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808d5920d8): kobject_uevent_env kobject: 'tx-0' (ffff88808d5920d8): fill_kobj_path: path = '/devices/virtual/net/sit126/queues/tx-0' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'sit3' (ffff88808df52e30): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' CPU: 0 PID: 2567 Comm: syz-executor.5 Not tainted 4.14.157-syzkaller #0 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env 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+0x142/0x197 lib/dump_stack.c:58 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] __kernfs_new_node+0x70/0x420 fs/kernfs/dir.c:633 kernfs_new_node+0x80/0xf0 fs/kernfs/dir.c:678 kernfs_create_link+0x2c/0x170 fs/kernfs/symlink.c:32 kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' sysfs_do_create_link_sd.isra.0+0x90/0x120 fs/sysfs/symlink.c:44 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:92 device_add_class_symlinks drivers/base/core.c:1673 [inline] device_add+0x735/0x1490 drivers/base/core.c:1875 kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' netdev_register_kobject+0x183/0x3a0 net/core/net-sysfs.c:1599 register_netdevice+0x814/0xca0 net/core/dev.c:7668 ipip6_tunnel_create+0x3a0/0x580 net/ipv6/sit.c:206 ipip6_newlink+0x114/0x2d0 net/ipv6/sit.c:1574 kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env rtnl_newlink+0xecb/0x1700 net/core/rtnetlink.c:2719 kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4306 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4318 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a679 RSP: 002b:00007f53782ecc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f53782ecc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f53782ed6d4 R13: 00000000004c956a R14: 00000000004e1018 R15: 0000000000000005 kobject: 'sit3' (ffff88808df52e30): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'sit3' (ffff88808df52e30): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'sit127' (ffff8880a4568ab0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'sit127' (ffff8880a4568ab0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'sit127' (ffff8880a4568ab0): fill_kobj_path: path = '/devices/virtual/net/sit127' kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues' (ffff888014e46048): kobject_add_internal: parent: 'sit127', set: '' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'queues' (ffff888014e46048): kobject_uevent_env kobject: 'queues' (ffff888014e46048): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff88808666e490): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff88808666e490): kobject_uevent_env kobject: 'rx-0' (ffff88808666e490): fill_kobj_path: path = '/devices/virtual/net/sit127/queues/rx-0' kobject: 'tx-0' (ffff88805715d7d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88805715d7d8): kobject_uevent_env kobject: 'tx-0' (ffff88805715d7d8): fill_kobj_path: path = '/devices/virtual/net/sit127/queues/tx-0' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'sit3' (ffff8880909a4e70): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'sit3' (ffff8880909a4e70): kobject_uevent_env kobject: 'sit3' (ffff8880909a4e70): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'queues' (ffff88801369df48): kobject_add_internal: parent: 'sit3', set: '' kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (ffff88801369df48): kobject_uevent_env kobject: 'queues' (ffff88801369df48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809809c550): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809809c550): kobject_uevent_env kobject: 'rx-0' (ffff88809809c550): fill_kobj_path: path = '/devices/virtual/net/sit3/queues/rx-0' kobject: 'tx-0' (ffff88808d41cd18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808d41cd18): kobject_uevent_env kobject: 'tx-0' (ffff88808d41cd18): fill_kobj_path: path = '/devices/virtual/net/sit3/queues/tx-0' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'sit128' (ffff888058ceb130): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit128' (ffff888058ceb130): kobject_uevent_env kobject: 'sit128' (ffff888058ceb130): fill_kobj_path: path = '/devices/virtual/net/sit128' kobject: 'queues' (ffff8880a8d79a48): kobject_add_internal: parent: 'sit128', set: '' kobject: 'queues' (ffff8880a8d79a48): kobject_uevent_env kobject: 'queues' (ffff8880a8d79a48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88808f28a0d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88808f28a0d0): kobject_uevent_env kobject: 'rx-0' (ffff88808f28a0d0): fill_kobj_path: path = '/devices/virtual/net/sit128/queues/rx-0' kobject: 'tx-0' (ffff888053ea9a18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888053ea9a18): kobject_uevent_env kobject: 'tx-0' (ffff888053ea9a18): fill_kobj_path: path = '/devices/virtual/net/sit128/queues/tx-0' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a411ade0): kobject_uevent_env kobject: 'loop4' (ffff8880a411ade0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a4002ce0): kobject_uevent_env kobject: 'loop2' (ffff8880a4002ce0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env kobject: 'loop3' (ffff8880a40bad60): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'loop0' (ffff8880a47a34a0): kobject_uevent_env kobject: 'sit1' (ffff8880608fd130): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit1' (ffff8880608fd130): kobject_uevent_env kobject: 'loop0' (ffff8880a47a34a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'sit1' (ffff8880608fd130): fill_kobj_path: path = '/devices/virtual/net/sit1' kobject: 'loop1' (ffff8880a40463e0): kobject_uevent_env kobject: 'queues' (ffff888013ffc448): kobject_add_internal: parent: 'sit1', set: '' kobject: 'loop1' (ffff8880a40463e0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (ffff888013ffc448): kobject_uevent_env kobject: 'queues' (ffff888013ffc448): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809f7a5910): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809f7a5910): kobject_uevent_env kobject: 'rx-0' (ffff88809f7a5910): fill_kobj_path: path = '/devices/virtual/net/sit1/queues/rx-0' kobject: 'tx-0' (ffff88807f94fa18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88807f94fa18): kobject_uevent_env kobject: 'tx-0' (ffff88807f94fa18): fill_kobj_path: path = '/devices/virtual/net/sit1/queues/tx-0' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. kobject: 'loop5' (ffff8880a41636e0): kobject_uevent_env kobject: 'loop5' (ffff8880a41636e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a40bad60): kobject_uevent_env