[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 18.529314] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.049787] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available) [ 21.301713] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available) [ 22.312846] random: sshd: uninitialized urandom read (32 bytes read, 127 bits of entropy available) [ 22.411063] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts. 2018/04/06 04:22:01 parsed 1 programs 2018/04/06 04:22:01 executed programs: 0 [ 37.664314] IPVS: Creating netns size=2552 id=1 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 [ 38.265976] ================================================================== [ 38.273352] BUG: KASAN: use-after-free in l2tp_session_queue_purge+0xe8/0x100 [ 38.280605] Read of size 4 at addr ffff8800b4113180 by task syz-executor0/3782 [ 38.287930] [ 38.289528] CPU: 1 PID: 3782 Comm: syz-executor0 Not tainted 4.4.125-g38f41ec #21 [ 38.297113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.306437] 0000000000000000 82f1e0f0ae4910b6 ffff8800ade27c78 ffffffff81d067bd [ 38.314403] ffffea0002d04480 ffff8800b4113180 0000000000000000 ffff8800b4113180 [ 38.322365] ffffffff82ded950 ffff8800ade27cb0 ffffffff814fea83 ffff8800b4113180 [ 38.330330] Call Trace: [ 38.332888] [] dump_stack+0xc1/0x124 [ 38.338222] [] ? sock_release+0x1e0/0x1e0 [ 38.343990] [] print_address_description+0x73/0x260 [ 38.350623] [] ? sock_release+0x1e0/0x1e0 [ 38.356393] [] kasan_report+0x285/0x370 [ 38.361987] [] ? l2tp_session_queue_purge+0xe8/0x100 [ 38.368707] [] __asan_report_load4_noabort+0x14/0x20 [ 38.375427] [] l2tp_session_queue_purge+0xe8/0x100 [ 38.381975] [] ? sock_release+0x1e0/0x1e0 [ 38.387743] [] pppol2tp_release+0x1ff/0x310 [ 38.393687] [] sock_release+0x8d/0x1e0 [ 38.399193] [] sock_close+0x16/0x20 [ 38.404441] [] __fput+0x233/0x6d0 [ 38.409514] [] ____fput+0x15/0x20 [ 38.414591] [] task_work_run+0x104/0x180 [ 38.420273] [] exit_to_usermode_loop+0x13d/0x160 [ 38.426653] [] do_fast_syscall_32+0x614/0x8a0 [ 38.432770] [] sysenter_flags_fixed+0xd/0x17 [ 38.438816] [ 38.440414] Allocated by task 3782: [ 38.444007] [] save_stack_trace+0x26/0x50 [ 38.449895] [] save_stack+0x43/0xd0 [ 38.455263] [] kasan_kmalloc+0xad/0xe0 [ 38.460885] [] __kmalloc+0x124/0x320 [ 38.466348] [] l2tp_session_create+0x39/0x10f0 [ 38.472677] [] pppol2tp_connect+0x10fc/0x1930 [ 38.478915] [] SYSC_connect+0x1b6/0x310 [ 38.484623] [] SyS_connect+0x24/0x30 [ 38.490072] [] do_fast_syscall_32+0x321/0x8a0 [ 38.496304] [] sysenter_flags_fixed+0xd/0x17 [ 38.502451] [ 38.504048] Freed by task 3781: [ 38.507290] [] save_stack_trace+0x26/0x50 [ 38.513173] [] save_stack+0x43/0xd0 [ 38.518537] [] kasan_slab_free+0x72/0xc0 [ 38.524331] [] kfree+0xfc/0x300 [ 38.529353] [] l2tp_session_free+0x170/0x200 [ 38.535497] [] l2tp_tunnel_closeall+0x2d1/0x3b0 [ 38.541903] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 38.548308] [] udpv6_destroy_sock+0xb1/0xd0 [ 38.554369] [] sk_common_release+0x6b/0x300 [ 38.560430] [] udp_lib_close+0x15/0x20 [ 38.566055] [] inet_release+0xfa/0x1d0 [ 38.571676] [] inet6_release+0x50/0x70 [ 38.577308] [] sock_release+0x8d/0x1e0 [ 38.582932] [] sock_close+0x16/0x20 [ 38.588295] [] __fput+0x233/0x6d0 [ 38.593484] [] ____fput+0x15/0x20 [ 38.598672] [] task_work_run+0x104/0x180 [ 38.604470] [] exit_to_usermode_loop+0x13d/0x160 [ 38.610964] [] do_fast_syscall_32+0x614/0x8a0 [ 38.617192] [] sysenter_flags_fixed+0xd/0x17 [ 38.623341] [ 38.624943] The buggy address belongs to the object at ffff8800b4113180 [ 38.624943] which belongs to the cache kmalloc-512 of size 512 [ 38.637569] The buggy address is located 0 bytes inside of [ 38.637569] 512-byte region [ffff8800b4113180, ffff8800b4113380) [ 38.649236] The buggy address belongs to the page: [ 38.765970] INFO: trying to register non-static key. [ 38.771089] the code is fine but needs lockdep annotation. [ 38.776679] turning off the locking correctness validator. [ 38.782272] CPU: 0 PID: 3742 Comm: getty Not tainted 4.4.125-g38f41ec #21 [ 38.789171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.798493] 0000000000000000 0beba4c7290009dc ffff8801c99c7770 ffffffff81d067bd [ 38.806454] ffffffff85151100 0000000000000000 ffff8801c9e56000 ffff8800acc4fb70 [ 38.814413] 0000000000000000 ffff8801c99c7780 ffffffff8141b6f3 ffff8801c99c7930 [ 38.822383] Call Trace: [ 38.824940] [] dump_stack+0xc1/0x124 [ 38.830274] [] register_lock_class.part.26+0x32/0x36 [ 38.836996] [] __lock_acquire+0x3a49/0x4b50 [ 38.842938] [] ? mark_held_locks+0xaf/0x100 [ 38.848966] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 38.855956] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.862767] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 38.869059] [] ? finish_task_switch+0x1e7/0x660 [ 38.875346] [] ? finish_task_switch+0x1bb/0x660 [ 38.881640] [] ? __schedule+0xc10/0x1da0 [ 38.887323] [] ? __schedule+0xcb2/0x1da0 [ 38.893004] [] ? retint_kernel+0x2d/0x2d [ 38.898685] [] lock_acquire+0x15e/0x460 [ 38.904290] [] ? rwsem_down_write_failed+0x284/0x940 [ 38.911015] [] ? preempt_schedule_common+0x22/0x60 [ 38.917562] [] _raw_spin_lock_irq+0x42/0x60 [ 38.923500] [] ? rwsem_down_write_failed+0x284/0x940 [ 38.930221] [] rwsem_down_write_failed+0x284/0x940 [ 38.936771] [] ? rwsem_down_write_failed+0xd0/0x940 [ 38.943407] [] ? rwsem_down_read_failed+0x300/0x300 [ 38.950057] [] ? debug_check_no_obj_freed+0x2d2/0x9b0 [ 38.956883] [] ? __slab_free+0x109/0x2b0 [ 38.963792] [] ? mark_held_locks+0xaf/0x100 [ 38.969733] [] ? quarantine_put+0xab/0x180 [ 38.975584] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.982394] [] call_rwsem_down_write_failed+0x13/0x20 [ 38.989209] [] ? down_write+0x5c/0xa0 [ 38.994637] [] ? unlink_file_vma+0x75/0xb0 [ 39.000500] [] unlink_file_vma+0x75/0xb0 [ 39.006186] [] free_pgtables+0x226/0x330 [ 39.011864] [] exit_mmap+0x1e3/0x3a0 [ 39.017197] [] ? SyS_remap_file_pages+0x960/0x960 [ 39.023658] [] ? __might_sleep+0x90/0x1a0 [ 39.029427] [] mmput+0xf8/0x2d0 [ 39.034340] [] do_exit+0x714/0x2a10 [ 39.039587] [] ? release_task+0x1250/0x1250 [ 39.045531] [] ? clock_was_set_work+0x30/0x30 [ 39.051648] [] ? do_nanosleep+0x1ab/0x580 [ 39.057414] [] do_group_exit+0x108/0x320 [ 39.063102] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 39.069567] [] SyS_exit_group+0x1d/0x20 [ 39.075175] [] entry_SYSCALL_64_fastpath+0x22/0x9e SeaBIOS (version 1.8.2-20171130_102032-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 256 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2350: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039c926e input_len: 0x0000000001427f56 output: 0x0000000001000000 output_len: 0x0000000003ddca40 run_size: 0x0000000005516000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.125-g38f41ec (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #21 SMP PREEMPT Thu Mar 29 11:51:28 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfff2fff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfff3 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f23d0-0x000f23df] mapped at [ffff8800000f23d0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F2390 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1696830812 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfff2fff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfff3000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134024 r8192 d29816 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935227 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] Memory: 6581380K/7863876K available (40445K kernel code, 6140K rwdata, 8816K rodata, 1852K init, 23632K bss, 1282496K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Kernel/User page tables isolation: enabled [ 0.000000] Running RCU self tests [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU lockdep checking is enabled. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2 [ 0.000000] NR_IRQS:4352 nr_irqs:440 16 [ 0.000000] console [ttyS0] enabled [ 0.000000] console [ttyS0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.000000] ... CHAINHASH_SIZE: 32768 [ 0.000000] memory used by lock dependency info: 8159 kB [ 0.000000] per task-struct memory footprint: 1920 bytes [ 0.000000] tsc: Detected 2300.000 MHz processor [ 1.185705] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.186856] pid_max: default: 32768 minimum: 301 [ 1.187559] ACPI: Core revision 20150930 [ 1.593609] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.595656] Security Framework initialized [ 1.596231] SELinux: Initializing. [ 1.596907] AppArmor: AppArmor disabled by boot time parameter [ 1.597851] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.598776] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.602437] Initializing cgroup subsys io [ 1.603069] Initializing cgroup subsys freezer [ 1.603765] Initializing cgroup subsys hugetlb [ 1.604440] Initializing cgroup subsys debug [ 1.605254] CPU: Physical Processor ID: 0 [ 1.607123] mce: CPU supports 32 MCE banks [ 1.607955] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.608819] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.609748] Spectre V2 : Vulnerable: Minimal generic ASM retpoline [ 1.612862] Freeing SMP alternatives memory: 44K [ 1.622141] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.735101] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.736622] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.825363] x86: Booting SMP configuration: [ 1.825989] .... node #0, CPUs: #1 [ 1.826763] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.831497] x86: Booted up 1 node, 2 CPUs [ 1.832084] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.836797] devtmpfs: initialized [ 1.846298] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.847678] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.849353] xor: automatically using best checksumming function: [ 1.862714] kworker/u4:0 (21) used greatest stack depth: 27944 bytes left [ 1.945130] avx : 21061.600 MB/sec [ 1.946314] RTC time: 4:22:07, date: 04/06/18 [ 1.948596] NET: Registered protocol family 16 [ 1.949668] schedtune: init normalization constants... [ 1.950367] schedtune: no energy model data [ 1.951009] schedtune: disabled! [ 1.985343] cpuidle: using governor ladder [ 2.015170] cpuidle: using governor menu [ 2.016454] ACPI: bus type PCI registered [ 2.017015] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.019827] PCI: Using configuration type 1 for base access [ 2.031117] kworker/u4:0 (45) used greatest stack depth: 27448 bytes left [ 2.069143] kworker/u4:0 (124) used greatest stack depth: 27080 bytes left [ 2.435159] raid6: sse2x1 gen() 4768 MB/s [ 2.605126] raid6: sse2x1 xor() 2563 MB/s [ 2.775125] raid6: sse2x2 gen() 7025 MB/s [ 2.945133] raid6: sse2x2 xor() 4052 MB/s [ 3.115135] raid6: sse2x4 gen() 8076 MB/s [ 3.285134] raid6: sse2x4 xor() 5304 MB/s [ 3.455142] raid6: avx2x1 gen() 9403 MB/s [ 3.625138] raid6: avx2x2 gen() 14546 MB/s [ 3.795144] raid6: avx2x4 gen() 18953 MB/s [ 3.795811] raid6: using algorithm avx2x4 gen() 18953 MB/s [ 3.796576] raid6: using avx2x2 recovery algorithm [ 3.797882] ACPI: Added _OSI(Module Device) [ 3.798497] ACPI: Added _OSI(Processor Device) [ 3.799107] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.799764] ACPI: Added _OSI(Processor Aggregator Device) [ 3.825519] ACPI: Executed 2 blocks of module-level executable AML code [ 4.671511] ACPI: Interpreter enabled [ 4.672427] ACPI: (supports S0 S3 S4 S5) [ 4.672974] ACPI: Using IOAPIC for interrupt routing [ 4.674095] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 5.814623] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 5.815653] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 5.816996] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 5.818022] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 5.843882] PCI host bridge to bus 0000:00 [ 5.844607] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 5.845635] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 5.846597] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 5.847615] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 5.848652] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.887517] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 5.973757] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 5.979960] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 5.985971] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 5.991755] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 5.995359] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)