RDX: 00000000ffffff78 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f218f84c6d4 R13: 00000000004cbcea R14: 00000000004e59a8 R15: 0000000000000004 ====================================================== WARNING: possible circular locking dependency detected 4.14.158-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.4/10265 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 native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:557 default_idle_call+0x36/0x90 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x262/0x3d0 kernel/sched/idle.c:246 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:351 rest_init+0x1d9/0x1e2 init/main.c:434 start_kernel+0x6df/0x6fd init/main.c:708 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 -> #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 n_tty_write+0x953/0xee0 drivers/tty/n_tty.c:2356 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __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 other info that might help us debug this: Chain exists of: console_owner --> &port_lock_key --> &(&port->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&port->lock)->rlock); lock(&port_lock_key); lock(&(&port->lock)->rlock); lock(console_owner); *** DEADLOCK *** 5 locks held by syz-executor.4/10265: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&tty->atomic_write_lock){+.+.}, at: [] tty_write_lock+0x20/0x60 drivers/tty/tty_io.c:885 #2: (&tty->termios_rwsem){++++}, at: [] n_tty_write+0x179/0xee0 drivers/tty/n_tty.c:2316 #3: (&ldata->output_lock){+.+.}, at: [] n_tty_write+0x914/0xee0 drivers/tty/n_tty.c:2355 #4: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 drivers/tty/pty.c:120 stack backtrace: CPU: 0 PID: 10265 Comm: syz-executor.4 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 n_tty_write+0x953/0xee0 drivers/tty/n_tty.c:2356 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __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 RIP: 0033:0x45a849 RSP: 002b:00007f218f84bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f218f84bc90 RCX: 000000000045a849 RDX: 00000000ffffff78 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f218f84c6d4 R13: 00000000004cbcea R14: 00000000004e59a8 R15: 0000000000000004 CPU: 1 PID: 10268 Comm: syz-executor.2 Not tainted 4.14.158-syzkaller #0 kobject: 'loop1' (ffff8880a4106220): 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: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' 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 kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env alloc_pages include/linux/gfp.h:520 [inline] skb_page_frag_refill+0x1ef/0x490 net/core/sock.c:2201 sk_page_frag_refill+0x53/0x1c0 net/core/sock.c:2221 kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' __ip6_append_data.isra.0+0x9cb/0x2af0 net/ipv6/ip6_output.c:1509 ip6_append_data+0x1c1/0x2f0 net/ipv6/ip6_output.c:1582 rawv6_sendmsg+0x107c/0x2d10 net/ipv6/raw.c:952 inet_sendmsg+0x122/0x500 net/ipv4/af_inet.c:762 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 sock_write_iter+0x21d/0x390 net/socket.c:925 call_write_iter include/linux/fs.h:1777 [inline] do_iter_readv_writev+0x418/0x670 fs/read_write.c:675 do_iter_write fs/read_write.c:954 [inline] do_iter_write+0x154/0x540 fs/read_write.c:935 vfs_writev+0x170/0x2a0 fs/read_write.c:999 do_writev+0x10a/0x2d0 fs/read_write.c:1034 SYSC_writev fs/read_write.c:1107 [inline] SyS_writev+0x28/0x30 fs/read_write.c:1104 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a849 RSP: 002b:00007f2c7d8d8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f2c7d8d8c90 RCX: 000000000045a849 RDX: 0000000000000001 RSI: 0000000020000400 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c7d8d96d4 R13: 00000000004c8c4e R14: 00000000004e5ed0 R15: 0000000000000004 kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kauditd_printk_skb: 32 callbacks suppressed audit: type=1400 audit(1576017646.559:405): avc: denied { map } for pid=10263 comm="syz-executor.5" path=2F6D656D66643A2D42D54E49C56ABA707070F00884A26D202864656C6574656429 dev="tmpfs" ino=40444 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:tmpfs_t:s0 tclass=file permissive=1 kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. CPU: 0 PID: 10289 Comm: syz-executor.0 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+0x287/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff888219484250): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff888219484250): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'kvm' (ffff888219484250): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff888219484250): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. CPU: 1 PID: 10318 Comm: syz-executor.0 Not tainted 4.14.158-syzkaller #0 kobject: 'loop1' (ffff8880a4106220): 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: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' 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: 'loop5' (ffff8880a4283520): kobject_uevent_env 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 kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' __alloc_skb+0xcf/0x500 net/core/skbuff.c:205 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1158 [inline] netlink_sendmsg+0x874/0xc60 net/netlink/af_netlink.c:1852 kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (ffff888219484250): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'kvm' (ffff888219484250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff888219484250): kobject_uevent_env kobject: 'kvm' (ffff888219484250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): 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' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 1 PID: 10355 Comm: syz-executor.0 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 mm/slab.c:3376 [inline] kmem_cache_alloc+0x47/0x780 mm/slab.c:3550 skb_clone+0x129/0x320 net/core/skbuff.c:1282 __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x681/0x8f0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1285 [inline] netlink_unicast+0x49d/0x650 net/netlink/af_netlink.c:1312 audit: type=1400 audit(1576017647.659:406): avc: denied { map } for pid=10372 comm="syz-executor.2" path="pipe:[40621]" dev="pipefs" ino=40621 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=fifo_file permissive=1 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env CPU: 0 PID: 10386 Comm: syz-executor.0 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 mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x4b/0x790 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] xfrm_state_alloc+0x48/0x5a0 net/xfrm/xfrm_state.c:568 xfrm_state_construct net/xfrm/xfrm_user.c:560 [inline] xfrm_add_sa+0xb13/0x305e net/xfrm/xfrm_user.c:666 xfrm_user_rcv_msg+0x3c9/0x690 net/xfrm/xfrm_user.c:2613 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env CPU: 1 PID: 10409 Comm: syz-executor.0 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' 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+0x2f0/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] attach_auth net/xfrm/xfrm_user.c:355 [inline] xfrm_state_construct net/xfrm/xfrm_user.c:577 [inline] xfrm_add_sa+0x14d2/0x305e net/xfrm/xfrm_user.c:666 xfrm_user_rcv_msg+0x3c9/0x690 net/xfrm/xfrm_user.c:2613 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 10468 Comm: syz-executor.0 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop3' (ffff8880a41beba0): 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 mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc_track_caller+0x2ec/0x790 mm/slab.c:3735 kmemdup+0x27/0x60 mm/util.c:118 kmemdup include/linux/string.h:420 [inline] xfrm_state_construct net/xfrm/xfrm_user.c:589 [inline] xfrm_add_sa+0x19a3/0x305e net/xfrm/xfrm_user.c:666 xfrm_user_rcv_msg+0x3c9/0x690 net/xfrm/xfrm_user.c:2613 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 0 PID: 10503 Comm: syz-executor.0 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+0x287/0x780 mm/slab.c:3640 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] nlmsg_new include/net/netlink.h:511 [inline] netlink_ack+0x21c/0x9a0 net/netlink/af_netlink.c:2359 netlink_rcv_skb+0x2fc/0x3c0 net/netlink/af_netlink.c:2438 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' CPU: 0 PID: 10539 Comm: syz-executor.0 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] nlmsg_new include/net/netlink.h:511 [inline] netlink_ack+0x21c/0x9a0 net/netlink/af_netlink.c:2359 netlink_rcv_skb+0x2fc/0x3c0 net/netlink/af_netlink.c:2438 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' CPU: 0 PID: 10560 Comm: syz-executor.0 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 kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env 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+0x47/0x780 mm/slab.c:3550 kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' skb_clone+0x129/0x320 net/core/skbuff.c:1282 __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x681/0x8f0 net/netlink/af_netlink.c:302 __netlink_sendskb+0x49/0xa0 net/netlink/af_netlink.c:1230 kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env netlink_sendskb net/netlink/af_netlink.c:1239 [inline] netlink_unicast+0x524/0x650 net/netlink/af_netlink.c:1327 netlink_ack+0x51d/0x9a0 net/netlink/af_netlink.c:2402 netlink_rcv_skb+0x2fc/0x3c0 net/netlink/af_netlink.c:2438 xfrm_netlink_rcv+0x70/0x90 net/xfrm/xfrm_user.c:2621 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' 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: 0033:0x45a849 RSP: 002b:00007f81410adc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f81410adc90 RCX: 000000000045a849 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81410ae6d4 R13: 00000000004c99ad R14: 00000000004e17a8 R15: 0000000000000004 kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' FAT-fs (loop0): error, fat_get_cluster: invalid cluster chain (i_pos 16) FAT-fs (loop0): Filesystem has been set read-only FAT-fs (loop0): error, invalid access to FAT (entry 0x00000020) kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 100 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1400 audit(1576017651.929:407): avc: denied { map } for pid=10604 comm="syz-executor.5" path="/dev/vbi3" dev="devtmpfs" ino=17289 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:v4l_device_t:s0 tclass=chr_file permissive=1 kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 100 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'bridge27' (ffff88806f681670): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'bridge27' (ffff88806f681670): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'bridge27' (ffff88806f681670): fill_kobj_path: path = '/devices/virtual/net/bridge27' kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (ffff888090012f48): kobject_add_internal: parent: 'bridge27', set: '' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'queues' (ffff888090012f48): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (ffff888090012f48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff8880868d6b50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff8880868d6b50): kobject_uevent_env kobject: 'rx-0' (ffff8880868d6b50): fill_kobj_path: path = '/devices/virtual/net/bridge27/queues/rx-0' kobject: 'tx-0' (ffff8880a86ef858): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880a86ef858): kobject_uevent_env kobject: 'tx-0' (ffff8880a86ef858): fill_kobj_path: path = '/devices/virtual/net/bridge27/queues/tx-0' kobject: 'brif' (ffff88808e5d9100): kobject_add_internal: parent: 'bridge27', set: '' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'batman_adv' (ffff88809f864c80): kobject_add_internal: parent: 'bridge27', set: '' kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'bridge28' (ffff888067dfd2f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'bridge28' (ffff888067dfd2f0): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'bridge28' (ffff888067dfd2f0): fill_kobj_path: path = '/devices/virtual/net/bridge28' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'queues' (ffff8880a0a88e48): kobject_add_internal: parent: 'bridge28', set: '' kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (ffff8880a0a88e48): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'queues' (ffff8880a0a88e48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff8880a8356850): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'rx-0' (ffff8880a8356850): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (ffff8880a8356850): fill_kobj_path: path = '/devices/virtual/net/bridge28/queues/rx-0' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'tx-0' (ffff88808c5ffd18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (ffff88808c5ffd18): kobject_uevent_env kobject: 'tx-0' (ffff88808c5ffd18): fill_kobj_path: path = '/devices/virtual/net/bridge28/queues/tx-0' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'brif' (ffff88808c5fe100): kobject_add_internal: parent: 'bridge28', set: '' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'batman_adv' (ffff8880a93fbc80): kobject_add_internal: parent: 'bridge28', set: '' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'bridge29' (ffff8880685c5c70): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'bridge29' (ffff8880685c5c70): kobject_uevent_env kobject: 'bridge29' (ffff8880685c5c70): fill_kobj_path: path = '/devices/virtual/net/bridge29' kobject: 'queues' (ffff8880806b6248): kobject_add_internal: parent: 'bridge29', set: '' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'queues' (ffff8880806b6248): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff8880806b6248): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a869b310): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'rx-0' (ffff8880a869b310): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff8880a869b310): fill_kobj_path: path = '/devices/virtual/net/bridge29/queues/rx-0' kobject: 'tx-0' (ffff88808960bd58): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff88808960bd58): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff88808960bd58): fill_kobj_path: path = '/devices/virtual/net/bridge29/queues/tx-0' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'brif' (ffff888085bd1880): kobject_add_internal: parent: 'bridge29', set: '' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'batman_adv' (ffff8880a6889e00): kobject_add_internal: parent: 'bridge29', set: '' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'bridge30' (ffff8880aa9b1cf0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'bridge30' (ffff8880aa9b1cf0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 100 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'bridge30' (ffff8880aa9b1cf0): fill_kobj_path: path = '/devices/virtual/net/bridge30' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'queues' (ffff8880806b6148): kobject_add_internal: parent: 'bridge30', set: '' kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (ffff8880806b6148): kobject_uevent_env kobject: 'queues' (ffff8880806b6148): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff888084661b50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff888084661b50): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'rx-0' (ffff888084661b50): fill_kobj_path: path = '/devices/virtual/net/bridge30/queues/rx-0' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (ffff8880a7aed318): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'tx-0' (ffff8880a7aed318): kobject_uevent_env kobject: 'tx-0' (ffff8880a7aed318): fill_kobj_path: path = '/devices/virtual/net/bridge30/queues/tx-0' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'brif' (ffff88809ba72500): kobject_add_internal: parent: 'bridge30', set: '' kobject: 'batman_adv' (ffff88809ba72680): kobject_add_internal: parent: 'bridge30', set: '' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'bridge31' (ffff888069345cb0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'bridge31' (ffff888069345cb0): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'bridge31' (ffff888069345cb0): fill_kobj_path: path = '/devices/virtual/net/bridge31' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queues' (ffff88809a36e748): kobject_add_internal: parent: 'bridge31', set: '' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'queues' (ffff88809a36e748): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff88809a36e748): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'rx-0' (ffff8880a05d4790): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff8880a05d4790): kobject_uevent_env kobject: 'rx-0' (ffff8880a05d4790): fill_kobj_path: path = '/devices/virtual/net/bridge31/queues/rx-0' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'tx-0' (ffff8880a8e13058): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff8880a8e13058): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'tx-0' (ffff8880a8e13058): fill_kobj_path: path = '/devices/virtual/net/bridge31/queues/tx-0' kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'brif' (ffff888094f5d980): kobject_add_internal: parent: 'bridge31', set: '' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'batman_adv' (ffff88807d4e5f00): kobject_add_internal: parent: 'bridge31', set: '' kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'bridge32' (ffff8880690d9bf0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'bridge32' (ffff8880690d9bf0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'bridge32' (ffff8880690d9bf0): fill_kobj_path: path = '/devices/virtual/net/bridge32' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff88808d4b5648): kobject_add_internal: parent: 'bridge32', set: '' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'queues' (ffff88808d4b5648): kobject_uevent_env kobject: 'queues' (ffff88808d4b5648): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff88808e58a610): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'rx-0' (ffff88808e58a610): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff88808e58a610): fill_kobj_path: path = '/devices/virtual/net/bridge32/queues/rx-0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env SELinux: unrecognized netlink message: protocol=6 nlmsg_type=4303 sclass=netlink_xfrm_socket pig=10828 comm=syz-executor.0 kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tx-0' (ffff8880a7a64c98): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880a7a64c98): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'tx-0' (ffff8880a7a64c98): fill_kobj_path: path = '/devices/virtual/net/bridge32/queues/tx-0' kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'brif' (ffff8880a85c9600): kobject_add_internal: parent: 'bridge32', set: '' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'batman_adv' (ffff8880a85c9300): kobject_add_internal: parent: 'bridge32', set: '' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a41beba0): kobject_uevent_env kobject: 'loop3' (ffff8880a41beba0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880a40b92e0): kobject_uevent_env kobject: 'loop0' (ffff8880a40b92e0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a4106220): kobject_uevent_env kobject: 'loop1' (ffff8880a4106220): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4283520): kobject_uevent_env kobject: 'loop5' (ffff8880a4283520): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a41842a0): kobject_uevent_env kobject: 'loop2' (ffff8880a41842a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a421b4a0): kobject_uevent_env kobject: 'loop4' (ffff8880a421b4a0): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.