SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=29821 comm=syz-executor.4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=29821 comm=syz-executor.4 INFO: rcu_preempt self-detected stall on CPU 1-...: (1 GPs behind) idle=fb6/140000000000002/0 softirq=164603/164606 fqs=78 (t=10501 jiffies g=50207 c=50206 q=366) NMI backtrace for cpu 1 CPU: 1 PID: 29816 Comm: syz-executor.2 Not tainted 4.14.172-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+0x13e/0x194 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x139/0x17e lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline] rcu_dump_cpu_stacks+0x16d/0x1b8 kernel/rcu/tree.c:1396 print_cpu_stall kernel/rcu/tree.c:1542 [inline] check_cpu_stall kernel/rcu/tree.c:1610 [inline] __rcu_pending kernel/rcu/tree.c:3390 [inline] rcu_pending kernel/rcu/tree.c:3452 [inline] rcu_check_callbacks.cold+0x490/0xdaa kernel/rcu/tree.c:2792 update_process_times+0x29/0x60 kernel/time/timer.c:1590 tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165 tick_sched_timer+0x3e/0x120 kernel/time/tick-sched.c:1223 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x25c/0xbb0 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:111 [inline] RIP: 0010:unwind_next_frame+0x530/0x17a0 arch/x86/kernel/unwind_orc.c:348 RSP: 0018:ffff8880aeb07858 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff10 RAX: 0000000000015968 RBX: ffff8880aeb07908 RCX: 0000000000015968 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff895b67d8 RBP: 1ffff11015d60f12 R08: ffffffff88f2ea06 R09: ffff88808b21fc50 R10: ffff8880aeb0793d R11: 0000000000058071 R12: ffffffff825968a9 R13: ffff8880aeb07940 R14: ffff8880aeb07950 R15: 0000000000000001 __save_stack_trace+0x6b/0xd0 arch/x86/kernel/stacktrace.c:44 save_stack+0x32/0xa0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc mm/kasan/kasan.c:551 [inline] kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x114/0x770 mm/slab.c:3550 __build_skb+0x2e/0x2d0 net/core/skbuff.c:281 __netdev_alloc_skb+0x27e/0x430 net/core/skbuff.c:426 netdev_alloc_skb include/linux/skbuff.h:2648 [inline] dev_alloc_skb include/linux/skbuff.h:2661 [inline] send_hsr_supervision_frame+0x107/0xf40 net/hsr/hsr_device.c:265 hsr_announce+0xf0/0x330 net/hsr/hsr_device.c:350 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1636 [inline] __run_timers kernel/time/timer.c:1604 [inline] run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649 __do_softirq+0x254/0x9bf kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x3a/0x50 kernel/kcov.c:87 RSP: 0018:ffff88808b21fa50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000040000 RBX: ffff88808196b8c0 RCX: ffffc90009648000 RDX: 0000000000000001 RSI: ffffffff8129bab8 RDI: ffff88808196b8c0 RBP: ffff88810196b8c0 R08: 1ffff1100a505400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000778000000000 R13: ffff88808b21fab0 R14: 0000000000000000 R15: 0000000000000286 __phys_addr+0x28/0xe0 arch/x86/mm/physaddr.c:24 virt_to_head_page include/linux/mm.h:600 [inline] qlink_to_cache mm/kasan/quarantine.c:127 [inline] qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163 quarantine_reduce+0x140/0x170 mm/kasan/quarantine.c:259 kasan_kmalloc+0x95/0xe0 mm/kasan/kasan.c:536 kmem_cache_alloc+0x127/0x770 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:651 [inline] inode_alloc_security security/selinux/hooks.c:233 [inline] selinux_inode_alloc_security+0xb1/0x2a0 security/selinux/hooks.c:2893 security_inode_alloc+0x8f/0xd0 security/security.c:438 inode_init_always+0x549/0xaf0 fs/inode.c:167 alloc_inode+0x7a/0x170 fs/inode.c:216 new_inode_pseudo+0x14/0xe0 fs/inode.c:898 new_inode+0x1b/0x40 fs/inode.c:927 debugfs_get_inode+0x1a/0x130 fs/debugfs/inode.c:44 __debugfs_create_file+0x93/0x3c0 fs/debugfs/inode.c:358 kvm_create_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:622 [inline] kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:3298 [inline] kvm_dev_ioctl+0xd71/0x1480 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3321 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xfe0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c479 RSP: 002b:00007fc25670dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc25670e6d4 RCX: 000000000045c479 RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000007 RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000390 R14: 00000000004c5c71 R15: 000000000076bf2c