====================================================== WARNING: possible circular locking dependency detected 4.19.86-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/14473 is trying to acquire lock: 00000000d1736ea8 (console_owner){-.-.}, at: console_trylock_spinning kernel/printk/printk.c:1669 [inline] 00000000d1736ea8 (console_owner){-.-.}, at: vprintk_emit+0x348/0x690 kernel/printk/printk.c:1933 but task is already holding lock: 00000000a0422061 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 drivers/tty/pty.c:119 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+0x22/0x80 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:442 start_kernel+0x88c/0x8c5 init/main.c:738 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:2425 vprintk_emit+0x238/0x690 kernel/printk/printk.c:1934 vprintk_default+0x28/0x30 kernel/printk/printk.c:1975 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2008 register_console+0x77f/0xb90 kernel/printk/printk.c:2741 univ8250_console_init+0x3e/0x4b drivers/tty/serial/8250/8250_core.c:685 console_init+0x4f7/0x761 kernel/printk/printk.c:2827 start_kernel+0x59c/0x8c5 init/main.c:661 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+0x385/0x690 kernel/printk/printk.c:1933 vprintk_default+0x28/0x30 kernel/printk/printk.c:1975 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2008 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:121 tty_send_xchar+0x282/0x380 drivers/tty/tty_io.c:1093 n_tty_ioctl_helper drivers/tty/tty_ioctl.c:927 [inline] n_tty_ioctl_helper+0x192/0x3b0 drivers/tty/tty_ioctl.c:894 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 *** 4 locks held by syz-executor.1/14473: #0: 0000000002024ba8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:362 #1: 00000000315a6799 (&tty->atomic_write_lock){+.+.}, at: tty_write_lock+0x23/0x90 drivers/tty/tty_io.c:886 #2: 0000000060dbe978 (&tty->termios_rwsem){++++}, at: tty_send_xchar+0x21f/0x380 drivers/tty/tty_io.c:1090 #3: 00000000a0422061 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xff/0x200 drivers/tty/pty.c:119 stack backtrace: CPU: 1 PID: 14473 Comm: syz-executor.1 Not tainted 4.19.86-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+0x385/0x690 kernel/printk/printk.c:1933 vprintk_default+0x28/0x30 kernel/printk/printk.c:1975 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:2008 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:121 tty_send_xchar+0x282/0x380 drivers/tty/tty_io.c:1093 n_tty_ioctl_helper drivers/tty/tty_ioctl.c:927 [inline] n_tty_ioctl_helper+0x192/0x3b0 drivers/tty/tty_ioctl.c:894 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: 0033:0x45a649 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:00007f48f6fc3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f48f6fc3c90 RCX: 000000000045a649 RDX: 0000000000000003 RSI: 000000000000540a RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48f6fc46d4 R13: 00000000004c508e R14: 00000000004da050 R15: 0000000000000006 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env 9pnet: p9_fd_create_unix (14617): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media vcan0: MTU too low for tipc bearer kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env audit: type=1400 audit(1574896655.870:364): avc: denied { relabelto } for pid=14912 comm="syz-executor.0" name="UNIX" dev="sockfs" ino=595344 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:hald_sonypic_exec_t:s0 tclass=unix_stream_socket permissive=1 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: p9_fd_create_unix (14980): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): kobject_uevent_env net_ratelimit: 16 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env 9pnet: p9_fd_create_unix (15695): problem connecting socket: ./file0: -111 audit: type=1804 audit(1574896656.240:365): pid=15695 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir165621074/syzkaller.9OtvVQ/853/file0" dev="sda1" ino=17633 res=1 kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' audit: type=1804 audit(1574896656.260:366): pid=15773 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir165621074/syzkaller.9OtvVQ/853/file0" dev="sda1" ino=17633 res=1 vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): kobject_uevent_env Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (000000003670643b): kobject_uevent_env 9pnet: Could not find request transport: unibö kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet: Could not find request transport: unibö kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer kobject: 'loop0' (000000009dff789c): kobject_uevent_env Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (16201): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: p9_fd_create_unix (16331): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' Enabling of bearer rejected, failed to enable media vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0 base_sock_release(000000001a6386e3) sk=00000000dbf52a22 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' base_sock_release(000000004279555d) sk=000000001c65883c 9pnet_virtio: no channels available for device ./file0 kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media vcan0: MTU too low for tipc bearer kobject: 'loop0' (000000009dff789c): kobject_uevent_env Enabling of bearer rejected, failed to enable media 9pnet: Could not find request transport: u kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' Enabling of bearer rejected, failed to enable media EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 65537 (only 16 groups) kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet_virtio: no channels available for device ./file0 vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0/file0 EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 65537 (only 16 groups) 9pnet_virtio: no channels available for device ./file0 vcan0: MTU too low for tipc bearer kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet_virtio: no channels available for device ./file0 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0/file0 kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: p9_fd_create_unix (18109): problem connecting socket: ./file0/file0: -20 9pnet: p9_fd_create_unix (18166): problem connecting socket: ./file0: -111 vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' Invalid UDP bearer configuration Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: p9_fd_create_unix (18434): problem connecting socket: ./file0: -111 Invalid UDP bearer configuration Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (18605): problem connecting socket: ./file0: -111 kobject: 'loop4' (000000003670643b): kobject_uevent_env netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: p9_fd_create_unix (18917): problem connecting socket: ./file0: -111 9pnet: p9_fd_create_unix (18989): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop5' (000000002c23ef45): kobject_uevent_env 9pnet: p9_fd_create_unix (19024): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env 9pnet: p9_fd_create_unix (19232): problem connecting socket: ./file0: -111 kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): kobject_uevent_env 9pnet: p9_fd_create_unix (19449): problem connecting socket: ./file0: -111 kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env 9pnet: p9_fd_create_unix (19523): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet_virtio: no channels available for device ./file0 kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009dff789c): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env 9pnet: Could not find request transport: unio kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: Could not find request transport: unio kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: Could not find request transport: d kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (22120): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (22415): problem connecting socket: ./file0: -111 kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet: p9_fd_create_unix (22465): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (22742): problem connecting socket: ./file0: -111 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop0' (000000009dff789c): kobject_uevent_env 9pnet: p9_fd_create_unix (22772): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: p9_fd_create_unix (23183): problem connecting socket: ./file0: -111 vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: p9_fd_create_unix (23291): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet_virtio: no channels available for device ./file0 vcan0: MTU too low for tipc bearer kobject: 'loop5' (000000002c23ef45): kobject_uevent_env Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' net_ratelimit: 14 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 vcan0: MTU too low for tipc bearer protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 Enabling of bearer rejected, failed to enable media protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet: p9_fd_create_unix (23836): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: p9_fd_create_unix (23836): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env 9pnet_virtio: no channels available for device ./file0 kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (24397): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' 9pnet: p9_fd_create_unix (24397): problem connecting socket: ./file0: -111 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env 9pnet_virtio: no channels available for device ./file0 kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' 9pnet_virtio: no channels available for device ./file0 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' Enabling of bearer rejected, failed to enable media 9pnet_virtio: no channels available for device ./file0 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): kobject_uevent_env Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' nla_parse: 1 callbacks suppressed netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'sit1' (000000007152d8d0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit1' (000000007152d8d0): kobject_uevent_env kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'sit1' (000000007152d8d0): fill_kobj_path: path = '/devices/virtual/net/sit1' kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (00000000f2dabf6e): kobject_add_internal: parent: 'sit1', set: '' kobject: 'queues' (00000000f2dabf6e): kobject_uevent_env kobject: 'queues' (00000000f2dabf6e): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'rx-0' (0000000002e199c2): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (0000000002e199c2): kobject_uevent_env kobject: 'rx-0' (0000000002e199c2): fill_kobj_path: path = '/devices/virtual/net/sit1/queues/rx-0' kobject: 'tx-0' (000000008ccc630b): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000008ccc630b): kobject_uevent_env kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'tx-0' (000000008ccc630b): fill_kobj_path: path = '/devices/virtual/net/sit1/queues/tx-0' kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'sit2' (00000000aa5b98ac): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit2' (00000000aa5b98ac): kobject_uevent_env kobject: 'sit2' (00000000aa5b98ac): fill_kobj_path: path = '/devices/virtual/net/sit2' kobject: 'queues' (000000008615ca63): kobject_add_internal: parent: 'sit2', set: '' kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'queues' (000000008615ca63): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (000000008615ca63): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (000000002c23ef45): kobject_uevent_env kobject: 'rx-0' (00000000036723e2): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (00000000036723e2): kobject_uevent_env kobject: 'rx-0' (00000000036723e2): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/rx-0' kobject: 'tx-0' (00000000cd99edb6): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000cd99edb6): kobject_uevent_env kobject: 'tx-0' (00000000cd99edb6): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/tx-0' kobject: 'sit3' (000000006da27039): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit3' (000000006da27039): kobject_uevent_env kobject: 'sit3' (000000006da27039): fill_kobj_path: path = '/devices/virtual/net/sit3' kobject: 'queues' (00000000f0eccb4f): kobject_add_internal: parent: 'sit3', set: '' kobject: 'queues' (00000000f0eccb4f): kobject_uevent_env 9pnet_virtio: no channels available for device ./file0 kobject: 'queues' (00000000f0eccb4f): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000008b4a9175): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000008b4a9175): kobject_uevent_env kobject: 'rx-0' (000000008b4a9175): fill_kobj_path: path = '/devices/virtual/net/sit3/queues/rx-0' kobject: 'tx-0' (00000000e24ae72c): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000e24ae72c): kobject_uevent_env kobject: 'tx-0' (00000000e24ae72c): fill_kobj_path: path = '/devices/virtual/net/sit3/queues/tx-0' netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'sit4' (00000000e3356a72): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit4' (00000000e3356a72): kobject_uevent_env kobject: 'sit4' (00000000e3356a72): fill_kobj_path: path = '/devices/virtual/net/sit4' kobject: 'queues' (00000000bffc4e40): kobject_add_internal: parent: 'sit4', set: '' kobject: 'queues' (00000000bffc4e40): kobject_uevent_env kobject: 'queues' (00000000bffc4e40): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000e3da0e37): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (00000000e3da0e37): kobject_uevent_env kobject: 'rx-0' (00000000e3da0e37): fill_kobj_path: path = '/devices/virtual/net/sit4/queues/rx-0' kobject: 'tx-0' (00000000e4600d20): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000e4600d20): kobject_uevent_env kobject: 'tx-0' (00000000e4600d20): fill_kobj_path: path = '/devices/virtual/net/sit4/queues/tx-0' kobject: 'sit5' (000000007beb13bc): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'sit5' (000000007beb13bc): kobject_uevent_env kobject: 'sit5' (000000007beb13bc): fill_kobj_path: path = '/devices/virtual/net/sit5' kobject: 'queues' (000000005120b56d): kobject_add_internal: parent: 'sit5', set: '' kobject: 'queues' (000000005120b56d): kobject_uevent_env kobject: 'queues' (000000005120b56d): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000005a141ab0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000005a141ab0): kobject_uevent_env kobject: 'rx-0' (000000005a141ab0): fill_kobj_path: path = '/devices/virtual/net/sit5/queues/rx-0' kobject: 'tx-0' (00000000b048fa61): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000b048fa61): kobject_uevent_env kobject: 'tx-0' (00000000b048fa61): fill_kobj_path: path = '/devices/virtual/net/sit5/queues/tx-0' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media netlink: 'syz-executor.3': attribute type 3 has an invalid length. kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' 9pnet: p9_fd_create_unix (27598): problem connecting socket: ./file0: -111 kobject: 'loop4' (000000003670643b): kobject_uevent_env kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' vcan0: MTU too low for tipc bearer Enabling of bearer rejected, failed to enable media kobject: 'loop0' (000000009dff789c): kobject_uevent_env kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' Unknown ioctl -2147202751 9pnet: p9_fd_create_unix (27805): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): kobject_uevent_env Unknown ioctl -2147202751 9pnet: p9_fd_create_unix (28072): problem connecting socket: ./file0: -111 kobject: 'loop5' (000000002c23ef45): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (000000003670643b): kobject_uevent_env vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, failed to enable media 9pnet: p9_fd_create_unix (28221): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): kobject_uevent_env 9pnet: p9_fd_create_unix (28431): problem connecting socket: ./file0: -111 kobject: 'loop0' (000000009dff789c): fill_kobj_path: path = '/devices/virtual/block/loop0' vcan0: MTU too low for tipc bearer kobject: 'loop4' (000000003670643b): kobject_uevent_env Enabling of bearer rejected, failed to enable media kobject: 'loop4' (000000003670643b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000002c23ef45): kobject_uevent_env