RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f439faf36d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff Node 0 ====================================================== WARNING: possible circular locking dependency detected 4.14.160-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/18171 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: [] tty_port_close_start.part.0+0x2b/0x4e0 drivers/tty/tty_port.c:572 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/0xf20 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 tty_port_close_start.part.0+0x491/0x4e0 drivers/tty/tty_port.c:574 tty_port_close_start drivers/tty/tty_port.c:646 [inline] tty_port_close+0x41/0xc0 drivers/tty/tty_port.c:639 tpk_close+0x7a/0x8c drivers/char/ttyprintk.c:109 tty_release+0x373/0xd60 drivers/tty/tty_io.c:1670 __fput+0x275/0x7a0 fs/file_table.c:210 ____fput+0x16/0x20 fs/file_table.c:244 task_work_run+0x114/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1da/0x220 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297 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 *** 2 locks held by syz-executor.0/18171: #0: (&tty->legacy_mutex){+.+.}, at: [] tty_lock+0x68/0x80 drivers/tty/tty_mutex.c:19 #1: (&(&port->lock)->rlock){-.-.}, at: [] tty_port_close_start.part.0+0x2b/0x4e0 drivers/tty/tty_port.c:572 stack backtrace: CPU: 1 PID: 18171 Comm: syz-executor.0 Not tainted 4.14.160-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 tty_port_close_start.part.0+0x491/0x4e0 drivers/tty/tty_port.c:574 tty_port_close_start drivers/tty/tty_port.c:646 [inline] tty_port_close+0x41/0xc0 drivers/tty/tty_port.c:639 tpk_close+0x7a/0x8c drivers/char/ttyprintk.c:109 tty_release+0x373/0xd60 drivers/tty/tty_io.c:1670 __fput+0x275/0x7a0 fs/file_table.c:210 ____fput+0x16/0x20 fs/file_table.c:244 task_work_run+0x114/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1da/0x220 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4144b1 RSP: 002b:00007fffacd90d10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004144b1 RDX: 0000001b2e820000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 000000006e783fbb R09: 000000006e783fbf R10: 00007fffacd90df0 R11: 0000000000000293 R12: 000000000075c9a0 R13: 000000000075c9a0 R14: 0000000000761938 R15: 000000000075bf2c kobject: 'loop4' (ffff8880a419a4e0): kobject_uevent_env kobject: 'ip6gretap6644' (ffff8881bdac0af0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop4' (ffff8880a419a4e0): fill_kobj_path: path = '/devices/virtual/block/loop4' DMA free:10384kB min:216kB low:268kB high:320kB active_anon:4100kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kobject: 'ip6gretap6644' (ffff8881bdac0af0): kobject_uevent_env lowmem_reserve[]: kobject: 'ip6gretap6644' (ffff8881bdac0af0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6644' 0 2569 2569 2569 2569 Node 0 DMA32 free:25848kB min:36380kB low:45472kB high:54564kB active_anon:1382016kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB writepending:12kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:8192kB pagetables:11236kB bounce:0kB free_pcp:748kB local_pcp:612kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2321600kB min:53508kB low:66884kB high:80260kB active_anon:189248kB inactive_anon:40kB active_file:28976kB inactive_file:124432kB unevictable:0kB writepending:604kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:8832kB pagetables:24064kB bounce:0kB free_pcp:1196kB local_pcp:716kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 2*4kB (ME) 3*8kB (UM) 3*16kB (UME) 2*32kB (ME) 2*64kB (ME) 3*128kB (UME) 2*256kB (ME) 2*512kB (ME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10384kB Node 0 DMA32: 1152*4kB (MH) 1085*8kB (UMEH) 591*16kB (ME) 93*32kB (ME) 0*64kB 1*128kB (E) 0*256kB 0*512kB 0*1024kB 0*2048kB kobject: 'queues' (ffff8881ce7b2548): kobject_add_internal: parent: 'ip6gretap6644', set: '' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881ce7b2548): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 0*4096kB kobject: 'queues' (ffff8881ce7b2548): kobject_uevent_env: filter function caused the event to drop! = 25848kB kobject: 'rx-0' (ffff8881c93accd0): kobject_add_internal: parent: 'queues', set: 'queues' Node 0 kobject: 'rx-0' (ffff8881c93accd0): kobject_uevent_env Normal: kobject: 'rx-0' (ffff8881c93accd0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6644/queues/rx-0' 0*4kB kobject: 'tx-0' (ffff8880156e6798): kobject_add_internal: parent: 'queues', set: 'queues' 0*8kB kobject: 'tx-0' (ffff8880156e6798): kobject_uevent_env 0*16kB kobject: 'tx-0' (ffff8880156e6798): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6644/queues/tx-0' 0*32kB batman_adv: Cannot find parent device kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'batman_adv' (ffff888046e46080): kobject_add_internal: parent: 'ip6gretap6644', set: '' 0*64kB kobject: 'ip6gretap6645' (ffff8881c735edf0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'ip6gretap6645' (ffff8881c735edf0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'ip6gretap6645' (ffff8881c735edf0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6645' kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff8881ce7b2b48): kobject_add_internal: parent: 'ip6gretap6645', set: '' 0*128kB kobject: 'queues' (ffff8881ce7b2b48): kobject_uevent_env 0*256kB kobject: 'queues' (ffff8881ce7b2b48): kobject_uevent_env: filter function caused the event to drop! 0*512kB kobject: 'rx-0' (ffff8881c36f7d90): kobject_add_internal: parent: 'queues', set: 'queues' 0*1024kB kobject: 'rx-0' (ffff8881c36f7d90): kobject_uevent_env 0*2048kB 0*4096kB kobject: 'rx-0' (ffff8881c36f7d90): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6645/queues/rx-0' kobject: 'tx-0' (ffff888045be2a98): kobject_add_internal: parent: 'queues', set: 'queues' = 0kB kobject: 'tx-0' (ffff888045be2a98): kobject_uevent_env Node 1 kobject: 'tx-0' (ffff888045be2a98): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6645/queues/tx-0' Normal: batman_adv: Cannot find parent device 177*4kB kobject: 'batman_adv' (ffff888046e14200): kobject_add_internal: parent: 'ip6gretap6645', set: '' (UME) kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6646' (ffff8881d4872970): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 52*8kB (UME) 212*16kB (UME) 30*32kB (UM) 99*64kB (UME) 33*128kB (UM) 37*256kB (UM) 20*512kB (UME) 7*1024kB (UM) 2*2048kB (UM) 555*4096kB (M) = 2320292kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'ip6gretap6646' (ffff8881d4872970): kobject_uevent_env kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'ip6gretap6646' (ffff8881d4872970): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6646' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18191 comm=syz-executor.1 kobject: 'queues' (ffff8881bd444048): kobject_add_internal: parent: 'ip6gretap6646', set: '' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18190 comm=syz-executor.1 38631 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 335858 pages reserved 0 pages cma reserved kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881bd444048): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881bd444048): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'rx-0' (ffff8881d4825a90): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (ffff8881d4825a90): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881d4825a90): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6646/queues/rx-0' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff8880425b42d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff8880425b42d8): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff8880425b42d8): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6646/queues/tx-0' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env batman_adv: Cannot find parent device kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'batman_adv' (ffff888042625d00): kobject_add_internal: parent: 'ip6gretap6646', set: '' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap823' (ffff8881c4de29f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a4090c20): kobject_uevent_env kobject: 'ip6gretap823' (ffff8881c4de29f0): kobject_uevent_env net_ratelimit: 12 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 kobject: 'ip6gretap823' (ffff8881c4de29f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap823' protocol 88fb is buggy, dev hsr_slave_1 kobject: 'queues' (ffff8881bd444948): kobject_add_internal: parent: 'ip6gretap823', set: '' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (ffff8880a4090c20): fill_kobj_path: path = '/devices/virtual/block/loop1' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18233 comm=syz-executor.1 kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881bd444948): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881bd444948): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881c300cd90): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881c300cd90): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff8881c300cd90): fill_kobj_path: path = '/devices/virtual/net/ip6gretap823/queues/rx-0' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff8880124d7818): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff8880124d7818): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop5' (ffff8880a41d4560): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop5' (ffff8880a41d4560): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff8880124d7818): fill_kobj_path: path = '/devices/virtual/net/ip6gretap823/queues/tx-0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' batman_adv: Cannot find parent device kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'batman_adv' (ffff888042625880): kobject_add_internal: parent: 'ip6gretap823', set: '' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'ip6gretap824' (ffff8880266425f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap824' (ffff8880266425f0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env syz-executor.3: kobject: 'ip6gretap824' (ffff8880266425f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap824' page allocation failure: order:0 kobject: 'queues' (ffff8881c3864248): kobject_add_internal: parent: 'ip6gretap824', set: '' , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask= kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' (null) kobject: 'queues' (ffff8881c3864248): kobject_uevent_env syz-executor.3 cpuset= kobject: 'kvm' (ffff88821947d250): kobject_uevent_env syz3 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' mems_allowed=0-1 kobject: 'queues' (ffff8881c3864248): kobject_uevent_env: filter function caused the event to drop! CPU: 0 PID: 18285 Comm: syz-executor.3 Not tainted 4.14.160-syzkaller #0 kobject: 'rx-0' (ffff8881db646310): kobject_add_internal: parent: 'queues', set: 'queues' 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 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 kobject: 'rx-0' (ffff8881db646310): kobject_uevent_env __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 kobject: 'rx-0' (ffff8881db646310): fill_kobj_path: path = '/devices/virtual/net/ip6gretap824/queues/rx-0' __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 kobject: 'tx-0' (ffff8880407d5858): kobject_add_internal: parent: 'queues', set: 'queues' alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 kobject: 'tx-0' (ffff8880407d5858): kobject_uevent_env kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 kobject: 'tx-0' (ffff8880407d5858): fill_kobj_path: path = '/devices/virtual/net/ip6gretap824/queues/tx-0' kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 batman_adv: Cannot find parent device kobject: 'batman_adv' (ffff888095c3c100): kobject_add_internal: parent: 'ip6gretap824', set: '' kobject: 'vti1' (ffff8881c69ad2f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'vti1' (ffff8881c69ad2f0): kobject_uevent_env vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 kobject: 'vti1' (ffff8881c69ad2f0): fill_kobj_path: path = '/devices/virtual/net/vti1' 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 kobject: 'queues' (ffff8881c3864948): kobject_add_internal: parent: 'vti1', set: '' entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a919 RSP: 002b:00007f9d3c3e8c78 EFLAGS: 00000246 kobject: 'queues' (ffff8881c3864948): kobject_uevent_env ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 0000000000000009 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9d3c3e96d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff kobject: 'queues' (ffff8881c3864948): kobject_uevent_env: filter function caused the event to drop! protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 warn_alloc_show_mem: 2 callbacks suppressed Mem-Info: kobject: 'kvm' (ffff88821947d250): kobject_uevent_env active_anon:393908 inactive_anon:192 isolated_anon:0 active_file:7247 inactive_file:31141 isolated_file:0 unevictable:0 dirty:197 writeback:0 unstable:0 slab_reclaimable:20582 slab_unreclaimable:474036 mapped:58120 shmem:255 pagetables:8876 bounce:0 free:588361 free_pcp:484 free_cma:0 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' Node 0 active_anon:1386116kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208916kB dirty:12kB writeback:0kB shmem:968kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 421888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes kobject: 'rx-0' (ffff8881db646850): kobject_add_internal: parent: 'queues', set: 'queues' Node 1 active_anon:189516kB inactive_anon:48kB active_file:28976kB inactive_file:124528kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:23564kB dirty:776kB writeback:0kB shmem:52kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no kobject: 'rx-0' (ffff8881db646850): kobject_uevent_env Node 0 kobject: 'rx-0' (ffff8881db646850): fill_kobj_path: path = '/devices/virtual/net/vti1/queues/rx-0' DMA free:10384kB min:216kB low:268kB high:320kB active_anon:4100kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kobject: 'kvm' (ffff88821947d250): kobject_uevent_env lowmem_reserve[]: kobject: 'tx-0' (ffff88803ada37d8): kobject_add_internal: parent: 'queues', set: 'queues' 0 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 2569 kobject: 'tx-0' (ffff88803ada37d8): kobject_uevent_env 2569 kobject: 'tx-0' (ffff88803ada37d8): fill_kobj_path: path = '/devices/virtual/net/vti1/queues/tx-0' 2569 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env 2569 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' nla_parse: 13 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. Node 0 kobject: 'ip6gretap6647' (ffff88801d200f70): kobject_add_internal: parent: 'net', set: 'devices' DMA32 free:25908kB min:36380kB low:45472kB high:54564kB active_anon:1382016kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB writepending:12kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:8192kB pagetables:11236kB bounce:0kB free_pcp:904kB local_pcp:636kB free_cma:0kB kobject: 'ip6gretap6647' (ffff88801d200f70): kobject_uevent_env lowmem_reserve[]: kobject: 'ip6gretap6647' (ffff88801d200f70): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6647' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881cba82048): kobject_add_internal: parent: 'ip6gretap6647', set: '' 0 kobject: 'queues' (ffff8881cba82048): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881cba82048): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff88802e1b3f10): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff88802e1b3f10): kobject_uevent_env 0 kobject: 'rx-0' (ffff88802e1b3f10): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6647/queues/rx-0' 0 kobject: 'tx-0' (ffff888043a647d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff888043a647d8): kobject_uevent_env 0 kobject: 'tx-0' (ffff888043a647d8): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6647/queues/tx-0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' batman_adv: Cannot find parent device 0 kobject: 'batman_adv' (ffff88803c511b80): kobject_add_internal: parent: 'ip6gretap6647', set: '' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6648' (ffff8881d71e65b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'ip6gretap6648' (ffff8881d71e65b0): kobject_uevent_env Node 0 kobject: 'ip6gretap6648' (ffff8881d71e65b0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6648' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881cba82948): kobject_add_internal: parent: 'ip6gretap6648', set: '' Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kobject: 'queues' (ffff8881cba82948): kobject_uevent_env kobject: 'loop5' (ffff8880a41d4560): kobject_uevent_env kobject: 'queues' (ffff8881cba82948): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop5' (ffff8880a41d4560): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (ffff8881e9d78cd0): kobject_add_internal: parent: 'queues', set: 'queues' lowmem_reserve[]: kobject: 'rx-0' (ffff8881e9d78cd0): kobject_uevent_env 0 kobject: 'rx-0' (ffff8881e9d78cd0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6648/queues/rx-0' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'tx-0' (ffff88803af3a858): kobject_add_internal: parent: 'queues', set: 'queues' protocol 88fb is buggy, dev hsr_slave_1 kobject: 'tx-0' (ffff88803af3a858): kobject_uevent_env 0 kobject: 'tx-0' (ffff88803af3a858): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6648/queues/tx-0' 0 batman_adv: Cannot find parent device 0 kobject: 'batman_adv' (ffff888081b9c180): kobject_add_internal: parent: 'ip6gretap6648', set: '' 0 kobject: 'ip6gretap6649' (ffff8881c8f1adb0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'ip6gretap6649' (ffff8881c8f1adb0): kobject_uevent_env Node 1 kobject: 'ip6gretap6649' (ffff8881c8f1adb0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6649' Normal free:2318480kB min:53508kB low:66884kB high:80260kB active_anon:189416kB inactive_anon:48kB active_file:28976kB inactive_file:124528kB unevictable:0kB writepending:776kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:8800kB pagetables:24120kB bounce:0kB free_pcp:1296kB local_pcp:620kB free_cma:0kB kobject: 'queues' (ffff8881cba82e48): kobject_add_internal: parent: 'ip6gretap6649', set: '' lowmem_reserve[]: kobject: 'queues' (ffff8881cba82e48): kobject_uevent_env 0 kobject: 'queues' (ffff8881cba82e48): kobject_uevent_env: filter function caused the event to drop! 0 kobject: 'rx-0' (ffff8881c2616550): kobject_add_internal: parent: 'queues', set: 'queues' 0 kobject: 'rx-0' (ffff8881c2616550): kobject_uevent_env 0 kobject: 'rx-0' (ffff8881c2616550): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6649/queues/rx-0' 0 kobject: 'tx-0' (ffff888095244098): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888095244098): kobject_uevent_env Node 0 kobject: 'tx-0' (ffff888095244098): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6649/queues/tx-0' DMA: batman_adv: Cannot find parent device 2*4kB kobject: 'batman_adv' (ffff88803841d780): kobject_add_internal: parent: 'ip6gretap6649', set: '' (ME) kobject: 'ip6gretap6650' (ffff8881e75b8ff0): kobject_add_internal: parent: 'net', set: 'devices' 3*8kB kobject: 'ip6gretap6650' (ffff8881e75b8ff0): kobject_uevent_env (UM) kobject: 'ip6gretap6650' (ffff8881e75b8ff0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6650' 3*16kB kobject: 'queues' (ffff8881d3b1e948): kobject_add_internal: parent: 'ip6gretap6650', set: '' (UME) 2*32kB (ME) 2*64kB (ME) 3*128kB (UME) 2*256kB (ME) kobject: 'queues' (ffff8881d3b1e948): kobject_uevent_env 2*512kB kobject: 'queues' (ffff8881d3b1e948): kobject_uevent_env: filter function caused the event to drop! (ME) 2*1024kB (ME) kobject: 'rx-0' (ffff8881c2616a90): kobject_add_internal: parent: 'queues', set: 'queues' 1*2048kB kobject: 'rx-0' (ffff8881c2616a90): kobject_uevent_env (E) 1*4096kB (M) = 10384kB Node 0 DMA32: 1153*4kB kobject: 'rx-0' (ffff8881c2616a90): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6650/queues/rx-0' (UMH) kobject: 'tx-0' (ffff888018bdcd18): kobject_add_internal: parent: 'queues', set: 'queues' 1086*8kB kobject: 'tx-0' (ffff888018bdcd18): kobject_uevent_env (UMEH) kobject: 'tx-0' (ffff888018bdcd18): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6650/queues/tx-0' 594*16kB batman_adv: Cannot find parent device (ME) kobject: 'batman_adv' (ffff88801a6d3f00): kobject_add_internal: parent: 'ip6gretap6650', set: '' 93*32kB (ME) 0*64kB netlink: 32 bytes leftover after parsing attributes in process `syz-executor.4'. 1*128kB (E) kobject: 'loop1' (ffff8880a4090c20): kobject_uevent_env kobject: 'ip6gretap6651' (ffff8881d22c73b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop1' (ffff8880a4090c20): fill_kobj_path: path = '/devices/virtual/block/loop1' 0*256kB kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' syz-executor.5: 0*512kB SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18314 comm=syz-executor.1 kobject: 'ip6gretap6651' (ffff8881d22c73b0): kobject_uevent_env kobject: 'loop4' (ffff8880a419a4e0): kobject_uevent_env 0*1024kB page allocation failure: order:0 kobject: 'ip6gretap6651' (ffff8881d22c73b0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6651' kobject: 'loop4' (ffff8880a419a4e0): fill_kobj_path: path = '/devices/virtual/block/loop4' 0*2048kB , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask= 0*4096kB kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'queues' (ffff8881dfa55c48): kobject_add_internal: parent: 'ip6gretap6651', set: '' kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' = 25908kB kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'queues' (ffff8881dfa55c48): kobject_uevent_env (null) Node 0 syz-executor.5 cpuset= kobject: 'queues' (ffff8881dfa55c48): kobject_uevent_env: filter function caused the event to drop! syz5 Normal: kobject: 'rx-0' (ffff8881e9fbd190): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8881e9fbd190): kobject_uevent_env kobject: 'rx-0' (ffff8881e9fbd190): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6651/queues/rx-0' kobject: 'tx-0' (ffff88802ae23358): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88802ae23358): kobject_uevent_env kobject: 'tx-0' (ffff88802ae23358): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6651/queues/tx-0' batman_adv: Cannot find parent device kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' 0*4kB mems_allowed=0-1 kobject: 'batman_adv' (ffff88802771b500): kobject_add_internal: parent: 'ip6gretap6651', set: '' CPU: 1 PID: 18308 Comm: syz-executor.5 Not tainted 4.14.160-syzkaller #0 0*8kB 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 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 0*16kB __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 0*32kB alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 0*64kB kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 0*128kB kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 0*256kB kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 0*512kB 0*1024kB vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 0*2048kB 0*4096kB 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 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.4'. entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a919 RSP: 002b:00007f2b8ae4cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 = 0kB RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b8ae4d6d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff Node 1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. Normal: kobject: 'ip6gretap6652' (ffff8881c89fb130): kobject_add_internal: parent: 'net', set: 'devices' 22*4kB kobject: 'ip6gretap6652' (ffff8881c89fb130): kobject_uevent_env (UME) kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env 12*8kB kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' (UME) kobject: 'ip6gretap6652' (ffff8881c89fb130): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6652' 247*16kB kobject: 'queues' (ffff8881bdfb7348): kobject_add_internal: parent: 'ip6gretap6652', set: '' (UME) kobject: 'queues' (ffff8881bdfb7348): kobject_uevent_env 42*32kB kobject: 'queues' (ffff8881bdfb7348): kobject_uevent_env: filter function caused the event to drop! (UME) kobject: 'rx-0' (ffff8881cd10b6d0): kobject_add_internal: parent: 'queues', set: 'queues' 102*64kB kobject: 'rx-0' (ffff8881cd10b6d0): kobject_uevent_env (UM) Mem-Info: active_anon:393883 inactive_anon:193 isolated_anon:0 active_file:7247 inactive_file:31165 isolated_file:0 unevictable:0 dirty:200 writeback:0 unstable:0 slab_reclaimable:20578 slab_unreclaimable:473754 mapped:58120 shmem:255 pagetables:8875 bounce:0 free:588627 free_pcp:554 free_cma:0 Node 0 active_anon:1386116kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208916kB dirty:12kB writeback:0kB shmem:968kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 421888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:189416kB inactive_anon:52kB active_file:28976kB inactive_file:124624kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:23564kB dirty:788kB writeback:0kB shmem:52kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10384kB min:216kB low:268kB high:320kB active_anon:4100kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 35*128kB kobject: 'rx-0' (ffff8881cd10b6d0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6652/queues/rx-0' (UM) 0 2569 2569 2569 2569 Node 0 DMA32 free:25892kB min:36380kB low:45472kB high:54564kB active_anon:1382016kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB writepending:12kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:8192kB pagetables:11236kB bounce:0kB free_pcp:900kB local_pcp:268kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2318232kB min:53508kB low:66884kB high:80260kB active_anon:189416kB inactive_anon:52kB active_file:28976kB inactive_file:124624kB unevictable:0kB writepending:788kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:8928kB pagetables:24264kB bounce:0kB free_pcp:1316kB local_pcp:684kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 29*256kB kobject: 'tx-0' (ffff88804341a798): kobject_add_internal: parent: 'queues', set: 'queues' (UME) kobject: 'tx-0' (ffff88804341a798): kobject_uevent_env 14*512kB kobject: 'tx-0' (ffff88804341a798): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6652/queues/tx-0' (UM) 2*4kB kobject: 'kvm' (ffff88821947d250): kobject_uevent_env (ME) 7*1024kB batman_adv: Cannot find parent device kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 3*8kB (UM) kobject: 'batman_adv' (ffff8880407d6300): kobject_add_internal: parent: 'ip6gretap6652', set: '' 2*2048kB (UM) (UM) kobject: 'ip6gretap6653' (ffff8881cee126f0): kobject_add_internal: parent: 'net', set: 'devices' 555*4096kB 3*16kB (M) kobject: 'ip6gretap6653' (ffff8881cee126f0): kobject_uevent_env = 2315624kB (UME) Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'ip6gretap6653' (ffff8881cee126f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6653' Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'queues' (ffff8881bdfb7a48): kobject_add_internal: parent: 'ip6gretap6653', set: '' Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'queues' (ffff8881bdfb7a48): kobject_uevent_env Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2*32kB 38669 total pagecache pages kobject: 'queues' (ffff8881bdfb7a48): kobject_uevent_env: filter function caused the event to drop! 0 pages in swap cache (ME) Swap cache stats: add 0, delete 0, find 0/0 2*64kB Free swap = 0kB kobject: 'rx-0' (ffff88801e459250): kobject_add_internal: parent: 'queues', set: 'queues' Total swap = 0kB kobject: 'rx-0' (ffff88801e459250): kobject_uevent_env 1965979 pages RAM kobject: 'rx-0' (ffff88801e459250): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6653/queues/rx-0' 0 pages HighMem/MovableOnly (ME) 335858 pages reserved 3*128kB 0 pages cma reserved kobject: 'tx-0' (ffff888044f8c5d8): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff888044f8c5d8): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff888044f8c5d8): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6653/queues/tx-0' (UME) batman_adv: Cannot find parent device 2*256kB kobject: 'batman_adv' (ffff888047c14680): kobject_add_internal: parent: 'ip6gretap6653', set: '' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env netlink: 28 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. (ME) 2*512kB (ME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10384kB Node 0 DMA32: 1153*4kB (UMH) 1084*8kB (UMEH) 594*16kB (ME) 93*32kB (ME) 0*64kB 1*128kB (E) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 25892kB kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18363 comm=syz-executor.1 Node 1 kobject: 'ip6gretap6654' (ffff8881c34d73f0): kobject_add_internal: parent: 'net', set: 'devices' Normal: 187*4kB (UME) 244*8kB (UME) 151*16kB (UME) 53*32kB (UM) 103*64kB (UME) 43*128kB (UM) 31*256kB (UME) 17*512kB (UM) 7*1024kB (UM) 2*2048kB (UM) 555*4096kB (M) = 2320092kB kobject: 'loop1' (ffff8880a4090c20): kobject_uevent_env Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'ip6gretap6654' (ffff8881c34d73f0): kobject_uevent_env kobject: 'loop1' (ffff8880a4090c20): fill_kobj_path: path = '/devices/virtual/block/loop1' Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'ip6gretap6654' (ffff8881c34d73f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6654' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop4' (ffff8880a419a4e0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a419a4e0): fill_kobj_path: path = '/devices/virtual/block/loop4' Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'queues' (ffff8881c703c848): kobject_add_internal: parent: 'ip6gretap6654', set: '' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=22772 sclass=netlink_route_socket pig=18383 comm=syz-executor.0 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 38677 total pagecache pages kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881c703c848): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881c703c848): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=22772 sclass=netlink_route_socket pig=18387 comm=syz-executor.0 0 pages in swap cache kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM kobject: 'rx-0' (ffff888206481010): kobject_add_internal: parent: 'queues', set: 'queues' 0 pages HighMem/MovableOnly 335858 pages reserved 0 pages cma reserved kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff888206481010): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff888206481010): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6654/queues/rx-0' kobject: 'tx-0' (ffff8881ff316d58): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8881ff316d58): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff8881ff316d58): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6654/queues/tx-0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' batman_adv: Cannot find parent device kobject: 'batman_adv' (ffff888017697900): kobject_add_internal: parent: 'ip6gretap6654', set: '' kobject: 'loop5' (ffff8880a41d4560): kobject_uevent_env kobject: 'loop5' (ffff8880a41d4560): fill_kobj_path: path = '/devices/virtual/block/loop5' netlink: 40 bytes leftover after parsing attributes in process `syz-executor.4'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=10996 sclass=netlink_route_socket pig=18406 comm=syz-executor.2 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'ip6gretap6655' (ffff88801ce02770): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'ip6gretap6655' (ffff88801ce02770): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6655' (ffff88801ce02770): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6655' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881c55a2348): kobject_add_internal: parent: 'ip6gretap6655', set: '' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881c55a2348): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881c55a2348): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff8881d45d8e50): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881d45d8e50): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' syz-executor.5: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) kobject: 'rx-0' (ffff8881d45d8e50): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6655/queues/rx-0' syz-executor.5 cpuset= net_ratelimit: 8 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 syz-executor.5: syz-executor.2: kobject: 'kvm' (ffff88821947d250): kobject_uevent_env page allocation failure: order:0 page allocation failure: order:0 , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask= kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' (null) kobject: 'tx-0' (ffff888017765598): kobject_add_internal: parent: 'queues', set: 'queues' syz5 , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask= syz-executor.2 cpuset= kobject: 'tx-0' (ffff888017765598): kobject_uevent_env mems_allowed=0-1 (null) syz-executor.5: syz2 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env page allocation failure: order:0 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' mems_allowed=0-1 syz-executor.5 cpuset= CPU: 1 PID: 18411 Comm: syz-executor.5 Not tainted 4.14.160-syzkaller #0 syz5 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'tx-0' (ffff888017765598): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6655/queues/tx-0' Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 mems_allowed=0-1 batman_adv: Cannot find parent device __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 kobject: 'batman_adv' (ffff888016ee0780): kobject_add_internal: parent: 'ip6gretap6655', set: '' alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 kobject: 'ip6gretap6656' (ffff8881c2bfd3f0): kobject_add_internal: parent: 'net', set: 'devices' kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 kobject: 'ip6gretap6656' (ffff8881c2bfd3f0): kobject_uevent_env , mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask= 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 kobject: 'ip6gretap6656' (ffff8881c2bfd3f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6656' do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 (null) entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a919 RSP: 002b:00007f2b8ae4cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000008 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b8ae4d6d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff CPU: 1 PID: 18416 Comm: syz-executor.2 Not tainted 4.14.160-syzkaller #0 kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 kobject: 'queues' (ffff8881c55a2f48): kobject_add_internal: parent: 'ip6gretap6656', set: '' __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 kobject: 'queues' (ffff8881c55a2f48): kobject_uevent_env alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kobject: 'queues' (ffff8881c55a2f48): kobject_uevent_env: filter function caused the event to drop! kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 kobject: 'rx-0' (ffff8881e044ab50): kobject_add_internal: parent: 'queues', set: 'queues' vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 kobject: 'rx-0' (ffff8881e044ab50): kobject_uevent_env syz-executor.5 cpuset= kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 kobject: 'rx-0' (ffff8881e044ab50): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6656/queues/rx-0' kobject: 'tx-0' (ffff88803f5c0318): kobject_add_internal: parent: 'queues', set: 'queues' syz5 kobject: 'tx-0' (ffff88803f5c0318): kobject_uevent_env vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 mems_allowed=0-1 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 kobject: 'tx-0' (ffff88803f5c0318): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6656/queues/tx-0' do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 batman_adv: Cannot find parent device entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a919 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env RSP: 002b:00007f439faf2c78 EFLAGS: 00000246 kobject: 'batman_adv' (ffff8880413deb00): kobject_add_internal: parent: 'ip6gretap6656', set: '' ORIG_RAX: 0000000000000010 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000081 RSI: 000000000000ae41 RDI: 000000000000000a RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f439faf36d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff protocol 88fb is buggy, dev hsr_slave_0 CPU: 0 PID: 18418 Comm: syz-executor.5 Not tainted 4.14.160-syzkaller #0 protocol 88fb is buggy, dev hsr_slave_1 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 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 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: 0033:0x45a919 RSP: 002b:00007f2b8ae2bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000006 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b8ae2c6d4 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff CPU: 0 PID: 18427 Comm: syz-executor.5 Not tainted 4.14.160-syzkaller #0 Mem-Info: 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 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 active_anon:393899 inactive_anon:192 isolated_anon:0 active_file:7247 inactive_file:31186 isolated_file:0 unevictable:0 dirty:236 writeback:0 unstable:0 slab_reclaimable:20633 slab_unreclaimable:474825 mapped:58120 shmem:255 pagetables:8887 bounce:0 free:587505 free_pcp:398 free_cma:0 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 Node 0 active_anon:1386116kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208916kB dirty:12kB writeback:0kB shmem:968kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 421888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:189480kB inactive_anon:48kB active_file:28976kB inactive_file:124708kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:23564kB dirty:932kB writeback:0kB shmem:52kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 Node 0 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 DMA free:10384kB min:216kB low:268kB high:320kB active_anon:4100kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB alloc_pages include/linux/gfp.h:520 [inline] alloc_mmu_pages arch/x86/kvm/mmu.c:5142 [inline] kvm_mmu_create+0xdf/0x1e0 arch/x86/kvm/mmu.c:5160 kvm_arch_vcpu_init+0x29c/0x8e0 arch/x86/kvm/x86.c:8291 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kvm_vcpu_init+0x272/0x360 arch/x86/kvm/../../../virt/kvm/kvm_main.c:320 vmx_create_vcpu+0xfc/0x2aa0 arch/x86/kvm/vmx.c:10048 lowmem_reserve[]: 0 kvm_arch_vcpu_create+0x8c/0xc0 arch/x86/kvm/x86.c:8004 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2549 [inline] kvm_vm_ioctl+0x501/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3057 2569 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' SELinux: unrecognized netlink message: protocol=0 nlmsg_type=10996 sclass=netlink_route_socket pig=18424 comm=syz-executor.2 2569 2569 2569 Node 0 kobject: 'kvm' (ffff88821947d250): kobject_uevent_env vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 DMA32 free:25892kB min:36380kB low:45472kB high:54564kB active_anon:1382016kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB writepending:12kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:8192kB pagetables:11236kB bounce:0kB free_pcp:924kB local_pcp:292kB free_cma:0kB lowmem_reserve[]: SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 0 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 0 0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a919 RSP: 002b:00007f2b8ae0ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 0 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919 0 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000006 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b8ae0b6d4 Node 0 R13: 00000000004c3cd2 R14: 00000000004d9398 R15: 00000000ffffffff Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB protocol 88fb is buggy, dev hsr_slave_0 lowmem_reserve[]: protocol 88fb is buggy, dev hsr_slave_1 kobject: 'ip6gretap6657' (ffff8881c658e7f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6657' (ffff8881c658e7f0): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6657' (ffff8881c658e7f0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6657' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881f8ab0d48): kobject_add_internal: parent: 'ip6gretap6657', set: '' kobject: 'queues' (ffff8881f8ab0d48): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'queues' (ffff8881f8ab0d48): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 0 0 0 0 0 kobject: 'rx-0' (ffff8881c8139550): kobject_add_internal: parent: 'queues', set: 'queues' Node 1 Normal free:2315148kB min:53508kB low:66884kB high:80260kB active_anon:189552kB inactive_anon:48kB active_file:28976kB inactive_file:124748kB unevictable:0kB writepending:976kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:9024kB pagetables:24276kB bounce:0kB free_pcp:828kB local_pcp:596kB free_cma:0kB kobject: 'rx-0' (ffff8881c8139550): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff8881c8139550): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6657/queues/rx-0' kobject: 'tx-0' (ffff888018a80098): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'tx-0' (ffff888018a80098): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff888018a80098): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6657/queues/tx-0' lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 2*4kB (ME) 3*8kB (UM) 3*16kB (UME) 2*32kB (ME) 2*64kB (ME) 3*128kB (UME) 2*256kB (ME) 2*512kB (ME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10384kB batman_adv: Cannot find parent device protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'batman_adv' (ffff88802ae87300): kobject_add_internal: parent: 'ip6gretap6657', set: '' Node 0 DMA32: 1153*4kB (UMH) 1084*8kB (UMEH) 594*16kB (ME) 93*32kB (ME) 0*64kB 1*128kB (E) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 25892kB kobject: 'ip6gretap6658' (ffff8881d02b1230): kobject_add_internal: parent: 'net', set: 'devices' Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB kobject: 'ip6gretap6658' (ffff8881d02b1230): kobject_uevent_env kobject: 'ip6gretap6658' (ffff8881d02b1230): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6658' Node 1 kobject: 'queues' (ffff8881cacf1048): kobject_add_internal: parent: 'ip6gretap6658', set: '' Normal: kobject: 'queues' (ffff8881cacf1048): kobject_uevent_env kobject: 'queues' (ffff8881cacf1048): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8881bff11cd0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8881bff11cd0): kobject_uevent_env 74*4kB kobject: 'rx-0' (ffff8881bff11cd0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6658/queues/rx-0' (UM) 165*8kB (UME) 206*16kB (UME) 56*32kB (UME) 103*64kB (UME) 33*128kB (ME) 30*256kB (UME) 14*512kB (UME) 7*1024kB (UME) 3*2048kB (UME) 554*4096kB (M) = 2314864kB warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: kobject: 'tx-0' (ffff88801703d018): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88801703d018): kobject_uevent_env kobject: 'tx-0' (ffff88801703d018): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6658/queues/tx-0' active_anon:393924 inactive_anon:193 isolated_anon:0 active_file:7247 inactive_file:31204 isolated_file:0 unevictable:0 dirty:255 writeback:0 unstable:0 slab_reclaimable:20651 slab_unreclaimable:474707 mapped:58120 shmem:255 pagetables:8850 bounce:0 free:587775 free_pcp:451 free_cma:0 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB batman_adv: Cannot find parent device kobject: 'batman_adv' (ffff888016ee0080): kobject_add_internal: parent: 'ip6gretap6658', set: '' netlink: 40 bytes leftover after parsing attributes in process `syz-executor.4'. kobject: 'kvm' (ffff88821947d250): kobject_uevent_env Node 0 active_anon:1386116kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208916kB dirty:12kB writeback:0kB shmem:968kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 421888kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' Node 1 active_anon:188980kB inactive_anon:52kB active_file:28976kB inactive_file:124780kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:23564kB dirty:1008kB writeback:0kB shmem:52kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no kobject: 'loop1' (ffff8880a4090c20): kobject_uevent_env netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop1' (ffff8880a4090c20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (ffff8880a419a4e0): kobject_uevent_env Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18484 comm=syz-executor.1 kobject: 'loop4' (ffff8880a419a4e0): fill_kobj_path: path = '/devices/virtual/block/loop4' Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 0 DMA free:10384kB min:216kB low:268kB high:320kB active_anon:4100kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'ip6gretap6659' (ffff8881f933aff0): kobject_add_internal: parent: 'net', set: 'devices' 38706 total pagecache pages kobject: 'ip6gretap6659' (ffff8881f933aff0): kobject_uevent_env 0 pages in swap cache kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'ip6gretap6659' (ffff8881f933aff0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6659' Swap cache stats: add 0, delete 0, find 0/0 lowmem_reserve[]: kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' Free swap = 0kB 0 2569 2569 2569 2569 kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881cacf1748): kobject_add_internal: parent: 'ip6gretap6659', set: '' Total swap = 0kB Node 0 DMA32 free:25892kB min:36380kB low:45472kB high:54564kB active_anon:1382016kB inactive_anon:720kB active_file:12kB inactive_file:36kB unevictable:0kB writepending:12kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:8192kB pagetables:11236kB bounce:0kB free_pcp:944kB local_pcp:644kB free_cma:0kB 1965979 pages RAM kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'queues' (ffff8881cacf1748): kobject_uevent_env kobject: 'queues' (ffff8881cacf1748): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' 0 pages HighMem/MovableOnly kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'rx-0' (ffff8881e02b9910): kobject_add_internal: parent: 'queues', set: 'queues' 335858 pages reserved lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' 0 pages cma reserved kobject: 'rx-0' (ffff8881e02b9910): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881e02b9910): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6659/queues/rx-0' kobject: 'tx-0' (ffff88802ebbb598): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff88802ebbb598): kobject_uevent_env lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:2314872kB min:53508kB low:66884kB high:80260kB active_anon:189580kB inactive_anon:52kB active_file:28976kB inactive_file:124780kB unevictable:0kB writepending:1008kB present:3932160kB managed:3870192kB mlocked:0kB kernel_stack:9120kB pagetables:24164kB bounce:0kB free_pcp:1000kB local_pcp:292kB free_cma:0kB kobject: 'tx-0' (ffff88802ebbb598): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6659/queues/tx-0' batman_adv: Cannot find parent device kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'batman_adv' (ffff88808af14300): kobject_add_internal: parent: 'ip6gretap6659', set: '' lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 2*4kB (ME) 3*8kB (UM) 3*16kB (UME) 2*32kB (ME) 2*64kB (ME) 3*128kB (UME) 2*256kB (ME) 2*512kB (ME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10384kB netlink: 40 bytes leftover after parsing attributes in process `syz-executor.4'. Node 0 DMA32: 1153*4kB (UMH) 1087*8kB (UMEH) 594*16kB (ME) 93*32kB (ME) 0*64kB 1*128kB (E) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 25916kB netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. Node 1 Normal: 99*4kB (UME) 153*8kB (UME) 160*16kB (UME) 55*32kB (UME) 103*64kB (UME) 45*128kB (UM) 29*256kB (UM) 13*512kB (UM) 6*1024kB (UM) 2*2048kB (UM) 555*4096kB (ME) = 2315892kB kobject: 'ip6gretap6660' (ffff8881eb3de7b0): kobject_add_internal: parent: 'net', set: 'devices' Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'ip6gretap6660' (ffff8881eb3de7b0): kobject_uevent_env Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'ip6gretap6660' (ffff8881eb3de7b0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6660' Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB kobject: 'queues' (ffff8881cacf1e48): kobject_add_internal: parent: 'ip6gretap6660', set: '' Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB kobject: 'queues' (ffff8881cacf1e48): kobject_uevent_env kobject: 'queues' (ffff8881cacf1e48): kobject_uevent_env: filter function caused the event to drop! 38717 total pagecache pages kobject: 'rx-0' (ffff8881d88253d0): kobject_add_internal: parent: 'queues', set: 'queues' 0 pages in swap cache kobject: 'rx-0' (ffff8881d88253d0): kobject_uevent_env Swap cache stats: add 0, delete 0, find 0/0 kobject: 'rx-0' (ffff8881d88253d0): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6660/queues/rx-0' Free swap = 0kB kobject: 'tx-0' (ffff8880529aa018): kobject_add_internal: parent: 'queues', set: 'queues' Total swap = 0kB 1965979 pages RAM kobject: 'tx-0' (ffff8880529aa018): kobject_uevent_env 0 pages HighMem/MovableOnly 335858 pages reserved 0 pages cma reserved kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff8880529aa018): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6660/queues/tx-0' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' batman_adv: Cannot find parent device kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'batman_adv' (ffff88803f5b8500): kobject_add_internal: parent: 'ip6gretap6660', set: '' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink: 7 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop5' (ffff8880a41d4560): kobject_uevent_env kobject: 'ip6gretap6661' (ffff8881c240c730): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop5' (ffff8880a41d4560): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'ip6gretap6661' (ffff8881c240c730): kobject_uevent_env kobject: 'ip6gretap6661' (ffff8881c240c730): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6661' kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'queues' (ffff8881db647e48): kobject_add_internal: parent: 'ip6gretap6661', set: '' kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues' (ffff8881db647e48): kobject_uevent_env kobject: 'queues' (ffff8881db647e48): kobject_uevent_env: filter function caused the event to drop! kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'rx-0' (ffff8881d8825490): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'rx-0' (ffff8881d8825490): kobject_uevent_env kobject: 'rx-0' (ffff8881d8825490): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6661/queues/rx-0' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'tx-0' (ffff888025932818): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tx-0' (ffff888025932818): kobject_uevent_env kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env kobject: 'tx-0' (ffff888025932818): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6661/queues/tx-0' kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env batman_adv: Cannot find parent device kobject: 'batman_adv' (ffff88803a54f400): kobject_add_internal: parent: 'ip6gretap6661', set: '' kobject: 'loop3' (ffff8880a41615a0): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 40 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. kobject: 'loop5' (ffff8880a41d4560): kobject_uevent_env kobject: 'loop5' (ffff8880a41d4560): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4090c20): kobject_uevent_env kobject: 'loop1' (ffff8880a4090c20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a419a4e0): kobject_uevent_env kobject: 'loop4' (ffff8880a419a4e0): fill_kobj_path: path = '/devices/virtual/block/loop4' caif:caif_disconnect_client(): nothing to disconnect kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (ffff8880a40f6ca0): kobject_uevent_env kobject: 'loop2' (ffff8880a40f6ca0): fill_kobj_path: path = '/devices/virtual/block/loop2' caif:caif_disconnect_client(): nothing to disconnect SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=18561 comm=syz-executor.1 kobject: 'ip6gretap6662' (ffff8881d96ec870): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): kobject_uevent_env kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (ffff88821947d250): fill_kobj_path: path = '/devices/virtual/misc/kvm' syz-executor.0: page allocation failure: order:0, mode:0x14000c4(GFP_KERNEL|GFP_DMA32), nodemask=(null) kobject: 'loop0' (ffff8880891e4b60): kobject_uevent_env syz-executor.0 cpuset=syz0 mems_allowed=0-1 kobject: 'loop0' (ffff8880891e4b60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'ip6gretap6662' (ffff8881d96ec870): kobject_uevent_env kobject: 'ip6gretap6662' (ffff8881d96ec870): fill_kobj_path: path = '/devices/virtual/net/ip6gretap6662' CPU: 1 PID: 18565 Comm: syz-executor.0 Not tainted 4.14.160-syzkaller #0 kobject: 'loop3' (ffff8880a41615a0): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011