RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcdf337c6d4 R13: 00000000004c5a71 R14: 00000000004dbc30 R15: 0000000000000005 ====================================================== WARNING: possible circular locking dependency detected 4.14.158-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/16655 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:634 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+0x495/0x8a0 drivers/tty/n_tty.c:728 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.2/16655: #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: 16655 Comm: syz-executor.2 Not tainted 4.14.158-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+0x495/0x8a0 drivers/tty/n_tty.c:728 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: 0033:0x45a909 RSP: 002b:00007fcdf337bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcdf337bc90 RCX: 000000000045a909 RDX: 0000000020000100 RSI: 0000000000005412 RDI: 0000000000000004 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcdf337c6d4 R13: 00000000004c5a71 R14: 00000000004dbc30 R15: 0000000000000005 protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env CPU: 0 PID: 16670 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' 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: 'loop3' (ffff8880a41736a0): kobject_uevent_env should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x287/0x780 mm/slab.c:3640 kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 0 PID: 16702 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 kobject: 'loop5' (ffff8880a41e8660): 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_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16738 Comm: syz-executor.1 Not tainted 4.14.158-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 include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x80/0x400 mm/slab.c:2676 cache_alloc_refill mm/slab.c:3043 [inline] ____cache_alloc mm/slab.c:3125 [inline] ____cache_alloc mm/slab.c:3108 [inline] slab_alloc_node mm/slab.c:3320 [inline] kmem_cache_alloc_node_trace+0x697/0x770 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env CPU: 0 PID: 16764 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' 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_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' jfs: Unrecognized mount option "subj_type=" or missing value kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 1 PID: 16796 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop3' (ffff8880a41736a0): 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 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x287/0x780 mm/slab.c:3640 kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 jfs: Unrecognized mount option "subj_type=" or missing value netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 net_ratelimit: 1 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16842 Comm: syz-executor.1 Not tainted 4.14.158-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_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_dump+0x235/0xb10 net/netlink/af_netlink.c:2183 netlink_recvmsg+0xaaa/0xdc0 net/netlink/af_netlink.c:1960 sock_recvmsg_nosec+0x89/0xb0 net/socket.c:819 ___sys_recvmsg+0x21f/0x4d0 net/socket.c:2221 __sys_recvmmsg+0x226/0x6b0 net/socket.c:2329 SYSC_recvmmsg net/socket.c:2410 [inline] SyS_recvmmsg+0xb0/0x140 net/socket.c:2394 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f7d87384c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7d87384c90 RCX: 000000000045a909 RDX: 0400000000000085 RSI: 0000000020002d80 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007f7d873856d4 R13: 00000000004c8fb6 R14: 00000000004e08f8 R15: 0000000000000006 kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env selinux_nlmsg_perm: 23 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=60239 sclass=netlink_route_socket pig=16895 comm=syz-executor.3 kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16927 comm=syz-executor.1 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env 8021q: adding VLAN 0 to HW filter on device bond0 kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env 8021q: adding VLAN 0 to HW filter on device team0 kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' caif:caif_disconnect_client(): nothing to disconnect kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' chnl_net:chnl_net_open(): state disconnected kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16927 comm=syz-executor.1 IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' QAT: Invalid ioctl kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=7144 sclass=netlink_route_socket pig=17217 comm=syz-executor.1 kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=7144 sclass=netlink_route_socket pig=17217 comm=syz-executor.1 kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected nla_parse: 3 callbacks suppressed netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): tunl0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): gre0: link becomes ready kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): gretap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): erspan0: link becomes ready kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' IPv6: ADDRCONF(NETDEV_CHANGE): ip_vti0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env chnl_net:chnl_net_open(): state disconnected kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff8880a6bf6d90): kobject_uevent_env kobject: 'kvm' (ffff8880a6bf6d90): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready SELinux: unrecognized netlink message: protocol=0 nlmsg_type=29819 sclass=netlink_route_socket pig=17386 comm=syz-executor.3 kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' 8021q: adding VLAN 0 to HW filter on device bond0 IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready 8021q: adding VLAN 0 to HW filter on device team0 chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. kobject: 'kvm' (ffff8880a6bf6d90): kobject_uevent_env kobject: 'kvm' (ffff8880a6bf6d90): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=29819 sclass=netlink_route_socket pig=17386 comm=syz-executor.3 kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a41e8660): kobject_uevent_env kobject: 'loop5' (ffff8880a41e8660): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41736a0): kobject_uevent_env audit: type=1400 audit(1576211612.803:104): avc: denied { write } for pid=17432 comm="syz-executor.2" name="net" dev="proc" ino=68957 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=dir permissive=1 lo: Invalid MTU -800097009 requested, hw min 0 kobject: 'loop3' (ffff8880a41736a0): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env audit: type=1400 audit(1576211612.803:105): avc: denied { add_name } for pid=17432 comm="syz-executor.2" name="pfkey" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=dir permissive=1 kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a410b620): kobject_uevent_env kobject: 'loop2' (ffff8880a410b620): fill_kobj_path: path = '/devices/virtual/block/loop2' audit: type=1400 audit(1576211612.813:106): avc: denied { create } for pid=17432 comm="syz-executor.2" name="pfkey" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:insmod_t:s0 tclass=file permissive=1 kobject: 'loop1' (ffff8880a40acd20): kobject_uevent_env kobject: 'loop1' (ffff8880a40acd20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 26 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop4' (ffff8880a41ad720): kobject_uevent_env kobject: 'loop4' (ffff8880a41ad720): fill_kobj_path: path = '/devices/virtual/block/loop4'