[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 21.477253] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 26.980471] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 27.315198] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 28.618717] random: sshd: uninitialized urandom read (32 bytes read, 123 bits of entropy available) [ 47.500339] random: nonblocking pool is initialized Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. 2018/07/12 12:40:18 parsed 1 programs 2018/07/12 12:40:20 executed programs: 0 [ 101.067119] IPVS: Creating netns size=2552 id=1 [ 101.147573] IPVS: Creating netns size=2552 id=2 [ 101.219404] IPVS: Creating netns size=2552 id=3 [ 101.293603] IPVS: Creating netns size=2552 id=4 [ 101.408477] IPVS: Creating netns size=2552 id=5 [ 101.569804] IPVS: Creating netns size=2552 id=6 [ 101.716811] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 101.750296] IPVS: Creating netns size=2552 id=7 [ 101.783333] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 102.026166] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 102.071924] IPVS: Creating netns size=2552 id=8 [ 102.113712] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 102.131232] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 102.205475] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 102.279498] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 102.372621] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 102.385503] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 102.460363] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 102.512371] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 102.579870] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 102.592144] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 102.698377] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 102.762528] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 102.808163] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 102.816226] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.829157] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 102.854218] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 102.873354] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 102.936217] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 102.958589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.976549] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 102.987480] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.025894] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 103.035208] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.261302] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 103.342286] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 103.364963] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 103.408313] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 103.419541] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 103.430575] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 103.483112] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.491625] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 103.557027] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 103.565637] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 103.575453] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.612326] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.625203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 103.674361] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 103.683002] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.821907] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 103.871490] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 103.887113] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 103.939712] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 103.967202] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 103.995976] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 104.009072] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 104.087583] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 104.100244] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 104.323806] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 104.401425] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 104.428605] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 104.439490] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 104.466915] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 104.480131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 104.513583] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 104.537295] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 104.565405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 104.633749] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 104.872679] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 104.963043] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 105.055054] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 105.102733] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 106.324242] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 106.563171] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 106.691136] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 106.898545] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 106.916297] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 106.946135] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 107.141042] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 107.168876] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 107.217017] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 107.448005] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 107.675012] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 107.727771] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 107.906343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 107.934164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/07/12 12:40:28 executed programs: 8 [ 108.296974] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 108.483027] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/07/12 12:40:33 executed programs: 201 2018/07/12 12:40:38 executed programs: 430 INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes 2018/07/12 12:40:43 executed programs: 659 2018/07/12 12:40:48 executed programs: 885 2018/07/12 12:40:53 executed programs: 1114 2018/07/12 12:40:58 executed programs: 1342 2018/07/12 12:41:03 executed programs: 1576 2018/07/12 12:41:08 executed programs: 1802 2018/07/12 12:41:13 executed programs: 2034 [ 157.115223] ================================================================== [ 157.122646] BUG: KASAN: use-after-free in __lock_acquire+0x3c66/0x5270 [ 157.129308] Read of size 8 at addr ffff8800ba0f11a0 by task syz-executor0/14741 [ 157.136752] [ 157.138380] CPU: 1 PID: 14741 Comm: syz-executor0 Not tainted 4.4.140-g789274d #3 [ 157.145987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.155329] 0000000000000000 919019880910498a ffff8800ad17fa30 ffffffff81e0e08d [ 157.163410] ffffea0002e83c00 ffff8800ba0f11a0 0000000000000000 ffff8800ba0f11a0 [ 157.171458] 0000000000000000 ffff8800ad17fa68 ffffffff81515a56 ffff8800ba0f11a0 [ 157.179502] Call Trace: [ 157.182088] [] dump_stack+0xc1/0x124 [ 157.187452] [] print_address_description+0x6c/0x216 [ 157.194103] [] kasan_report.cold.7+0x175/0x2f7 [ 157.200325] [] ? __lock_acquire+0x3c66/0x5270 [ 157.206468] [] __asan_report_load8_noabort+0x14/0x20 [ 157.213219] [] __lock_acquire+0x3c66/0x5270 [ 157.219173] [] ? dput+0x1f/0x30 [ 157.224199] [] ? __fput+0x401/0x6f0 [ 157.229461] [] ? ____fput+0x15/0x20 [ 157.234747] [] ? task_work_run+0x10f/0x190 [ 157.240615] [] ? exit_to_usermode_loop+0x13d/0x160 [ 157.247193] [] ? __lock_acquire+0xa86/0x5270 [ 157.253235] [] ? debug_check_no_locks_freed+0x210/0x210 [ 157.260246] [] ? debug_check_no_locks_freed+0x210/0x210 [ 157.267337] [] ? debug_check_no_obj_freed+0x2ec/0x940 [ 157.274158] [] lock_acquire+0x15e/0x450 [ 157.279766] [] ? lock_sock_nested+0x43/0x120 [ 157.285813] [] ? get_parent_ip+0xd/0x50 [ 157.291437] [] ? sock_release+0x1c0/0x1c0 [ 157.297233] [] _raw_spin_lock_bh+0x3a/0x50 [ 157.303114] [] ? lock_sock_nested+0x43/0x120 [ 157.309150] [] lock_sock_nested+0x43/0x120 [ 157.315022] [] pppol2tp_release+0x50/0x310 [ 157.320900] [] sock_release+0x96/0x1c0 [ 157.326432] [] sock_close+0x16/0x20 [ 157.331693] [] __fput+0x235/0x6f0 [ 157.336775] [] ____fput+0x15/0x20 [ 157.341876] [] task_work_run+0x10f/0x190 [ 157.347566] [] exit_to_usermode_loop+0x13d/0x160 [ 157.354053] [] do_fast_syscall_32+0x620/0x8b0 [ 157.360188] [] sysenter_flags_fixed+0xd/0x17 [ 157.366242] [ 157.367848] Allocated by task 14746: [ 157.371542] [] save_stack_trace+0x26/0x50 [ 157.377455] [] save_stack+0x43/0xd0 [ 157.382860] [] kasan_kmalloc+0xc7/0xe0 [ 157.388604] [] __kmalloc+0x124/0x310 [ 157.394087] [] sk_prot_alloc+0x204/0x300 [ 157.399912] [] sk_alloc+0x3a/0x3a0 [ 157.405223] [] pppol2tp_create+0x33/0x1f0 [ 157.411220] [] pppox_create+0xf6/0x200 [ 157.416877] [] __sock_create+0x2f0/0x5f0 [ 157.422690] [] SyS_socket+0xf0/0x1b0 [ 157.428168] [] do_fast_syscall_32+0x326/0x8b0 [ 157.434414] [] sysenter_flags_fixed+0xd/0x17 [ 157.440575] [ 157.442177] Freed by task 14741: [ 157.445520] [] save_stack_trace+0x26/0x50 [ 157.451447] [] save_stack+0x43/0xd0 [ 157.456848] [] kasan_slab_free+0x72/0xc0 [ 157.462671] [] kfree+0xf4/0x310 [ 157.468076] [] sk_destruct+0x407/0x4c0 [ 157.473709] [] __sk_free+0x4f/0x220 [ 157.479116] [] sk_free+0x30/0x40 [ 157.484250] [] pppol2tp_session_sock_put+0x5f/0x70 [ 157.490942] [] l2tp_tunnel_closeall+0x23c/0x350 [ 157.497369] [] l2tp_udp_encap_destroy+0x8b/0xf0 [ 157.503807] [] udpv6_destroy_sock+0xb1/0xd0 [ 157.509907] [] sk_common_release+0x6d/0x300 [ 157.516017] [] udp_lib_close+0x15/0x20 [ 157.521678] [] inet_release+0xff/0x1d0 [ 157.527326] [] inet6_release+0x50/0x70 [ 157.532998] [] sock_release+0x96/0x1c0 [ 157.538655] [] sock_close+0x16/0x20 [ 157.544044] [] __fput+0x235/0x6f0 [ 157.549282] [] ____fput+0x15/0x20 [ 157.554511] [] task_work_run+0x10f/0x190 [ 157.560356] [] exit_to_usermode_loop+0x13d/0x160 [ 157.566901] [] do_fast_syscall_32+0x620/0x8b0 [ 157.573166] [] sysenter_flags_fixed+0xd/0x17 [ 157.579343] [ 157.580964] The buggy address belongs to the object at ffff8800ba0f1100 [ 157.580964] which belongs to the cache kmalloc-2048 of size 2048 [ 157.593790] The buggy address is located 160 bytes inside of [ 157.593790] 2048-byte region [ffff8800ba0f1100, ffff8800ba0f1900) [ 157.605734] The buggy address belongs to the page: [ 157.614309] ------------[ cut here ]------------ [ 157.619140] WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:973 __bfs+0x2aa/0x5f0() [ 157.627197] Kernel panic - not syncing: panic_on_warn set ... [ 157.627197] [ 157.634581] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.140-g789274d #3 [ 157.641509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 157.650890] 0000000000000000 55f404966079ab50 ffff8801db207788 ffffffff81e0e08d [ 157.658982] ffffffff83a43dc0 ffffffff84417840 ffffffff83a55c20 0000000000000009 [ 157.667834] 00000000000003cd ffff8801db207848 ffffffff8140a1c4 0000000041b58ab3 [ 157.676019] Call Trace: [ 157.678593] [] dump_stack+0xc1/0x124 [ 157.684774] [] panic+0x19e/0x38d [ 157.689842] [] ? add_taint.cold.4+0x16/0x16 [ 157.695831] [] ? __lock_acquire+0xa86/0x5270 [ 157.701909] [] ? warn_slowpath_common.cold.6+0x5/0x20 [ 157.708852] [] warn_slowpath_common.cold.6+0x20/0x20 [ 157.715795] [] ? __bfs+0x2aa/0x5f0 [ 157.721002] [] ? noop_count+0x40/0x40 [ 157.726474] [] warn_slowpath_null+0x29/0x30 [ 157.732462] [] __bfs+0x2aa/0x5f0 [ 157.737493] [] ? __lock_acquire+0xa86/0x5270 [ 157.743592] [] ? __module_text_address+0x13/0x140 [ 157.750125] [] check_usage_forwards+0x126/0x2e0 [ 157.756462] [] ? print_shortest_lock_dependencies+0x80/0x80 [ 157.763840] [] ? dump_trace+0x184/0x360 [ 157.769606] [] ? __lock_acquire+0xa86/0x5270 [ 157.775712] [] ? save_stack_trace+0x26/0x50 [ 157.781703] [] ? save_trace+0xe0/0x250 [ 157.787259] [] mark_lock+0x6de/0x1280 [ 157.792739] [] ? print_shortest_lock_dependencies+0x80/0x80 [ 157.800118] [] __lock_acquire+0x2509/0x5270 [ 157.806109] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 157.813141] [] ? debug_check_no_locks_freed+0x210/0x210 [ 157.820172] [] lock_acquire+0x15e/0x450 [ 157.825815] [] ? try_to_wake_up+0x2c/0xf00 [ 157.831718] [] ? debug_object_deactivate+0x214/0x340 [ 157.838505] [] _raw_spin_lock_irqsave+0x4e/0x70 [ 157.845009] [] ? try_to_wake_up+0x2c/0xf00 [ 157.850938] [] try_to_wake_up+0x2c/0xf00 [ 157.856666] [] ? check_preemption_disabled+0x3b/0x170 [ 157.863526] [] wake_up_process+0x15/0x20 [ 157.869256] [] hrtimer_wakeup+0x48/0x60 [ 157.874898] [] ? clock_was_set_work+0x30/0x30 [ 157.881089] [] __hrtimer_run_queues+0x3ad/0x1000 [ 157.887509] [] ? retrigger_next_event+0x1c0/0x1c0 [ 157.894015] [] ? kvm_clock_read+0x23/0x40 [ 157.899844] [] ? kvm_clock_get_cycles+0x9/0x10 [ 157.906105] [] ? hrtimer_interrupt+0x12d/0x430 [ 157.912351] [] hrtimer_interrupt+0x1b1/0x430 [ 157.918420] [] local_apic_timer_interrupt+0x74/0xa0 [ 157.925308] [] smp_apic_timer_interrupt+0x7c/0xa0 [ 157.931819] [] apic_timer_interrupt+0xa0/0xb0 [ 157.937968] [] ? native_safe_halt+0x6/0x10 [ 157.944647] [] ? trace_hardirqs_on+0xd/0x10 [ 157.950963] [] default_idle+0x55/0x3c0 [ 157.956528] [] arch_cpu_idle+0x10/0x20 [ 157.962076] [] default_idle_call+0x57/0x70 [ 157.967972] [] cpu_startup_entry+0x6af/0x780 [ 157.974047] [] ? call_cpuidle+0xe0/0xe0 [ 157.979690] [] rest_init+0x188/0x18e [ 157.985088] [] start_kernel+0x6b3/0x6e7 [ 157.990725] [] ? thread_stack_cache_init+0xb/0xb [ 157.997170] [] ? early_idt_handler_array+0x120/0x120 [ 158.003942] [] ? early_idt_handler_array+0x120/0x120 [ 158.010723] [] x86_64_start_reservations+0x29/0x2b [ 158.017340] [] x86_64_start_kernel+0x13f/0x162 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 0x000f2290: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x0000000003b5126e input_len: 0x00000000014cbea8 output: 0x0000000001000000 output_len: 0x0000000004008a40 run_size: 0x0000000005752000 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 4.4.140-g789274d (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC) ) #3 SMP PREEMPT Wed Jul 11 15:01:50 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=140 nopti [ 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] 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] Kernel/User page tables isolation: disabled [ 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 0x000f2310-0x000f231f] mapped at [ffff8800000f2310] [ 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 0x00000000000F22D0 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 2474010496 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=140 nopti [ 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: 6579092K/7863876K available (41761K kernel code, 6302K rwdata, 9052K rodata, 1864K init, 23696K bss, 1284784K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 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 [ 1.498025] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.499278] pid_max: default: 32768 minimum: 301 [ 1.499992] ACPI: Core revision 20150930 [ 1.890967] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.892587] Security Framework initialized [ 1.893215] SELinux: Initializing. [ 1.893931] AppArmor: AppArmor disabled by boot time parameter [ 1.894867] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.895858] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.900185] Initializing cgroup subsys io [ 1.900863] Initializing cgroup subsys freezer [ 1.901579] Initializing cgroup subsys hugetlb [ 1.902271] Initializing cgroup subsys debug [ 1.903035] CPU: Physical Processor ID: 0 [ 1.904953] mce: CPU supports 32 MCE banks [ 1.905753] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.906654] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.907661] Spectre V2 : Mitigation: Full generic retpoline [ 1.910744] Freeing SMP alternatives memory: 48K [ 1.920517] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.037355] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 2.039350] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.127653] x86: Booting SMP configuration: [ 2.128358] .... node #0, CPUs: #1 [ 2.129161] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 2.134120] x86: Booted up 1 node, 2 CPUs [ 2.134745] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.138928] devtmpfs: initialized [ 2.149208] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.150756] futex hash table entries: 512 (order: 4, 65536 bytes) [ 2.152577] xor: automatically using best checksumming function: [ 2.165211] kworker/u4:0 (21) used greatest stack depth: 27424 bytes left [ 2.247416] avx : 23310.400 MB/sec [ 2.248806] RTC time: 12:41:24, date: 07/12/18 [ 2.252261] NET: Registered protocol family 16 [ 2.253635] schedtune: init normalization constants... [ 2.254535] schedtune: no energy model data [ 2.255155] schedtune: disabled! [ 2.287726] cpuidle: using governor ladder [ 2.317504] cpuidle: using governor menu [ 2.318960] ACPI: bus type PCI registered [ 2.319618] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.322604] PCI: Using configuration type 1 for base access [ 2.777547] raid6: sse2x1 gen() 4550 MB/s [ 2.947555] raid6: sse2x1 xor() 2447 MB/s [ 3.117600] raid6: sse2x2 gen() 6933 MB/s [ 3.287629] raid6: sse2x2 xor() 4026 MB/s [ 3.457681] raid6: sse2x4 gen() 8425 MB/s [ 3.627701] raid6: sse2x4 xor() 5167 MB/s [ 3.797737] raid6: avx2x1 gen() 9293 MB/s [ 3.967766] raid6: avx2x2 gen() 14566 MB/s [ 4.137804] raid6: avx2x4 gen() 19041 MB/s [ 4.138692] raid6: using algorithm avx2x4 gen() 19041 MB/s [ 4.139460] raid6: using avx2x2 recovery algorithm [ 4.140842] ACPI: Added _OSI(Module Device) [ 4.141506] ACPI: Added _OSI(Processor Device) [ 4.142186] ACPI: Added _OSI(3.0 _SCP Extensions) [ 4.142833] ACPI: Added _OSI(Processor Aggregator Device) [ 4.169716] ACPI: Executed 2 blocks of module-level executable AML code