[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.217386] random: sshd: uninitialized urandom read (32 bytes read, 35 bits of entropy available) [ 21.611198] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.716845] random: sshd: uninitialized urandom read (32 bytes read, 122 bits of entropy available) [ 22.895498] random: sshd: uninitialized urandom read (32 bytes read, 127 bits of entropy available) [ 23.004003] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. executing program [ 28.442633] ================================================================== [ 28.450027] BUG: KASAN: use-after-free in ip6_xmit+0x1a2c/0x1a70 [ 28.456156] Read of size 8 at addr ffff8800b48ee3d8 by task syzkaller339551/3643 [ 28.463655] [ 28.465265] CPU: 0 PID: 3643 Comm: syzkaller339551 Not tainted 4.4.120-gd63fdf6 #28 [ 28.473034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.482362] 0000000000000000 f6d2d6a12168e0a2 ffff8800b0e9f7e0 ffffffff81d0408d [ 28.490337] ffffea0002d23b80 ffff8800b48ee3d8 0000000000000000 ffff8800b48ee3d8 [ 28.498326] 0000000000000040 ffff8800b0e9f818 ffffffff814fe143 ffff8800b48ee3d8 [ 28.506305] Call Trace: [ 28.508872] [] dump_stack+0xc1/0x124 [ 28.514211] [] print_address_description+0x73/0x260 [ 28.520844] [] kasan_report+0x285/0x370 [ 28.526449] [] ? ip6_xmit+0x1a2c/0x1a70 [ 28.532046] [] __asan_report_load8_noabort+0x14/0x20 [ 28.538769] [] ip6_xmit+0x1a2c/0x1a70 [ 28.544216] [] ? kfree+0xfc/0x300 [ 28.549299] [] ? pskb_expand_head+0x28b/0x980 [ 28.555441] [] ? l2tp_xmit_skb+0xa5e/0xea0 [ 28.561299] [] ? ip6_finish_output2+0x1c60/0x1c60 [ 28.567766] [] ? __lock_is_held+0xa1/0xf0 [ 28.573539] [] ? ipv4_dst_check+0x111/0x160 [ 28.579490] [] ? __sk_dst_check+0x148/0x260 [ 28.585432] [] inet6_csk_xmit+0x246/0x480 [ 28.591198] [] ? inet6_csk_xmit+0x100/0x480 [ 28.597138] [] ? inet6_csk_update_pmtu+0x160/0x160 [ 28.603696] [] ? udp6_set_csum+0x336/0xa80 [ 28.609554] [] l2tp_xmit_skb+0xc2f/0xea0 [ 28.615251] [] pppol2tp_sendmsg+0x584/0x7f0 [ 28.621217] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.627702] [] ? pppol2tp_release+0x310/0x310 [ 28.633840] [] sock_sendmsg+0xca/0x110 [ 28.639359] [] SYSC_sendto+0x2c8/0x340 [ 28.644876] [] ? SYSC_connect+0x310/0x310 [ 28.650647] [] ? lock_sock_nested+0xdc/0x120 [ 28.656676] [] ? ip6_datagram_connect+0x3a/0x50 [ 28.662967] [] ? inet_dgram_connect+0x172/0x1f0 [ 28.669256] [] ? SYSC_connect+0x212/0x310 [ 28.675032] [] ? retint_user+0x18/0x3c [ 28.680544] [] SyS_sendto+0x40/0x50 [ 28.685797] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 28.692345] [ 28.693942] Allocated by task 3627: [ 28.697532] [] save_stack_trace+0x26/0x50 [ 28.703420] [] save_stack+0x43/0xd0 [ 28.708792] [] kasan_kmalloc+0xad/0xe0 [ 28.714412] [] kasan_slab_alloc+0x12/0x20 [ 28.720299] [] kmem_cache_alloc+0xba/0x290 [ 28.726277] [] dst_alloc+0x11f/0x1a0 [ 28.731743] [] rt_dst_alloc+0x78/0x430 [ 28.737379] [] __ip_route_output_key_hash+0xa4e/0x2390 [ 28.744392] [] __ip4_datagram_connect+0xa15/0x1150 [ 28.751063] [] __ip6_datagram_connect+0x4d9/0x1950 [ 28.757744] [] ip6_datagram_connect+0x2f/0x50 [ 28.763973] [] inet_dgram_connect+0x16b/0x1f0 [ 28.770216] [] SYSC_connect+0x1b6/0x310 [ 28.775939] [] SyS_connect+0x24/0x30 [ 28.781386] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 28.788062] [ 28.789664] Freed by task 3: [ 28.792653] [] save_stack_trace+0x26/0x50 [ 28.798544] [] save_stack+0x43/0xd0 [ 28.803913] [] kasan_slab_free+0x72/0xc0 [ 28.809716] [] kmem_cache_free+0xc7/0x320 [ 28.815602] [] dst_destroy+0x20e/0x330 [ 28.821232] [] dst_destroy_rcu+0x15/0x40 [ 28.827065] [] rcu_process_callbacks+0x7f4/0x14a0 [ 28.833648] [] __do_softirq+0x227/0xa38 [ 28.839388] [ 28.840987] The buggy address belongs to the object at ffff8800b48ee3c0 [ 28.840987] which belongs to the cache ip_dst_cache of size 208 [ 28.853709] The buggy address is located 24 bytes inside of [ 28.853709] 208-byte region [ffff8800b48ee3c0, ffff8800b48ee490) [ 28.865468] The buggy address belongs to the page: [ 29.244731] SELinux: Invalid class 0 [ 29.248735] ------------[ cut here ]------------ [ 29.253493] kernel BUG at security/selinux/avc.c:119! [ 29.258685] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 29.264570] Dumping ftrace buffer: [ 29.268101] (ftrace buffer empty) [ 29.271800] Modules linked in: [ 29.275137] CPU: 1 PID: 1 Comm: init Not tainted 4.4.120-gd63fdf6 #28 [ 29.281707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.291069] task: ffff8801d9aa8000 task.stack: ffff8801d9ab0000 [ 29.297129] RIP: 0010:[] [] avc_audit_pre_callback+0x25f/0x2b0 [ 29.306475] RSP: 0018:ffff8801d9ab7818 EFLAGS: 00010293 [ 29.311918] RAX: ffff8801d9aa8000 RBX: 0000000000000000 RCX: ffffffff81b48adf [ 29.319194] RDX: 0000000000000000 RSI: 000000000000000d RDI: ffff8801d9ab7a98 [ 29.326468] RBP: ffff8801d9ab7850 R08: ffffed00161b7337 R09: ffffed00161b7337 [ 29.333742] R10: 0000000000000001 R11: ffffed00161b7336 R12: ffffffff839c79c0 [ 29.341014] R13: 0000000000000010 R14: ffffffff81b48480 R15: ffffffff81b48880 [ 29.348284] FS: 00007f0582b627a0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.356510] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.362393] CR2: 00007faba308c000 CR3: 00000001d3b74000 CR4: 0000000000160670 [ 29.369670] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.376937] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.384203] Stack: [ 29.386345] ffff8801d78438a0 4a13ebfffa260e59 1ffff1003b356f10 ffff8801d9ab7cc0 [ 29.394392] ffff8801d78438a0 ffffffff81b48480 ffffffff81b48880 ffff8801d9ab7a48 [ 29.402432] ffffffff81bac538 0000000000000000 ffff8801d9aa88c8 00000002842bdac0 [ 29.410475] Call Trace: [ 29.413070] [] ? securityfs_remove+0x260/0x260 [ 29.419306] [] ? avc_audit_post_callback+0x400/0x400 [ 29.426064] [] common_lsm_audit+0x128/0x1a40 [ 29.432126] [] ? ipv6_skb_to_auditdata+0xd80/0xd80 [ 29.438715] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 29.445651] [] ? debug_object_active_state+0x2b4/0x420 [ 29.452590] [] ? debug_object_assert_init+0x360/0x360 [ 29.459447] [] ? check_preemption_disabled+0x3b/0x200 [ 29.466304] [] ? trace_hardirqs_off+0xd/0x10 [ 29.472374] [] ? __call_rcu.constprop.69+0x223/0x930 [ 29.479140] [] ? avc_update_node+0x8e/0xa40 [ 29.485121] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 29.492058] [] slow_avc_audit+0x181/0x210 [ 29.497869] [] ? avc_get_hash_stats+0x230/0x230 [ 29.504207] [] ? avc_has_perm+0x296/0x500 [ 29.510017] [] avc_has_perm+0x420/0x500 [ 29.515651] [] ? avc_has_perm_noaudit+0x460/0x460 [ 29.522150] [] ? filename_lookup+0x245/0x3b0 [ 29.528217] [] selinux_inode_getattr+0x23c/0x300 [ 29.534632] [] ? selinux_file_open+0x550/0x550 [ 29.540870] [] ? strncpy_from_user+0x1d1/0x2c0 [ 29.547117] [] security_inode_getattr+0xec/0x140 [ 29.553534] [] vfs_getattr+0x1c/0x50 [ 29.558911] [] vfs_fstatat+0xe1/0x170 [ 29.564377] [] ? vfs_fstat+0x70/0x70 [ 29.569749] [] ? timespec_add_safe+0x116/0x160 [ 29.575985] [] SYSC_newstat+0x86/0x100 [ 29.581529] [] ? cp_new_stat+0x5c0/0x5c0 [ 29.587265] [] ? __might_fault+0xe4/0x1d0 [ 29.593076] [] ? __might_fault+0x114/0x1d0 [ 29.598968] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 29.605471] [] SyS_newstat+0x1d/0x30 [ 29.610842] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 29.617415] Code: ea 48 c7 c6 40 7b 9c 83 e8 5f 24 7f ff eb ad e8 88 82 81 ff 48 8b 7d c8 48 c7 c6 80 7a 9c 83 e8 48 24 7f ff eb ab e8 71 82 81 ff <0f> 0b e8 7a 5c 9b ff e9 c2 fe ff ff 48 89 df e8 ad 5c 9b ff e9 [ 29.644914] RIP [] avc_audit_pre_callback+0x25f/0x2b0 [ 29.651913] RSP [ 29.656062] BUG: unable to handle kernel NULL pointer dereference at 0000000000000064 [ 29.664288] IP: [] proc_reg_read+0x7f/0x170 [ 29.670315] PGD 80000001d1bd3067 PUD 1d2284067 PMD 0 [ 29.675902] Oops: 0002 [#2] PREEMPT SMP KASAN [ 29.680905] Dumping ftrace buffer: [ 29.684434] (ftrace buffer empty) [ 29.688145] Modules linked in: [ 29.691468] CPU: 1 PID: 3496 Comm: rsyslogd Tainted: G D 4.4.120-gd63fdf6 #28 [ 29.699861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.709224] task: ffff8801ce7f4800 task.stack: ffff8801cdc38000 [ 29.715289] RIP: 0010:[] [] proc_reg_read+0x7f/0x170 [ 29.723768] RSP: 0018:ffff8801cdc3fc90 EFLAGS: 00010293 [ 29.729224] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81665cc8 [ 29.736497] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8800af821cf8 [ 29.743772] RBP: ffff8801cdc3fcd0 R08: 0000000000000000 R09: ffff8801cdc78628 [ 29.751057] R10: 0000000000000000 R11: 1ffff10039b87f7e R12: ffff8801cdc78600 [ 29.758331] R13: 0000000000000000 R14: 0000000000000064 R15: ffff8801cdc3fee0 [ 29.765609] FS: 00007f327d240700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.773832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.779718] CR2: 0000000000000064 CR3: 00000001ce990000 CR4: 0000000000160670 [ 29.786992] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.794289] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.801557] Stack: [ 29.803709] ffff880100000001 0000000000000fff 00007f327ea745a0 1ffff10039b87fa0 [ 29.811773] ffff8801cdc78600 ffff8801cdc3fee0 ffff8801cdc3fe20 ffffffff81665c50 [ 29.819824] ffff8801cdc3fe48 ffffffff8151cf33 0000000000000000 0000000000000000 [ 29.827865] Call Trace: [ 29.830455] [] ? proc_reg_write+0x170/0x170 [ 29.836430] [] __vfs_read+0x103/0x440 [ 29.841891] [] ? vfs_iter_write+0x2d0/0x2d0 [ 29.847870] [] ? __fdget_pos+0x9f/0xc0 [ 29.853418] [] ? fsnotify+0x5ad/0xee0 [ 29.858874] [] ? fsnotify+0xee0/0xee0 [ 29.864333] [] ? avc_policy_seqno+0x9/0x20 [ 29.870225] [] ? selinux_file_permission+0x348/0x460 [ 29.876988] [] ? security_file_permission+0x89/0x1e0 [ 29.883751] [] ? rw_verify_area+0x100/0x2f0 [ 29.889730] [] vfs_read+0x123/0x3a0 [ 29.895014] [] SyS_read+0xd9/0x1b0 [ 29.900215] [] ? do_sendfile+0xd30/0xd30 [ 29.905944] [] ? lockdep_sys_exit+0x48/0xe0 [ 29.911926] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 29.918434] [] entry_SYSCALL_64_fastpath+0x1c/0x98 [ 29.925009] Code: 8d 7b e0 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e8 00 00 00 48 8b 5b e0 45 31 ed 4c 8d 73 64 e8 88 b0 cf ff 41 8d 75 01 44 89 e8 41 0f b1 36 44 39 e8 0f 85 89 00 00 00 e8 6e b0 cf ff 48 8d [ 29.952531] RIP [] proc_reg_read+0x7f/0x170 [ 29.958636] RSP [ 29.962252] CR2: 0000000000000064 [ 29.966350] kasan: CONFIG_KASAN_INLINE enabled [ 29.970751] kasan: GPF could be caused by NULL-ptr deref or user memory access[ 29.978912] ------------[ cut here ]------------ [ 29.983680] kernel BUG at fs/jbd2/transaction.c:1649! [ 29.988867] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 29.994744] Dumping ftrace buffer: [ 29.998279] (ftrace buffer empty) [ 30.001986] Modules linked in: [ 30.005305] CPU: 1 PID: 3494 Comm: rs:main Q:Reg Tainted: G D 4.4.120-gd63fdf6 #28 [ 30.014136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.023497] task: ffff8801ce6bc800 task.stack: ffff8801ce608000 [ 30.029556] RIP: 0010:[] [] jbd2_journal_stop+0x252/0x1410 [ 30.038552] RSP: 0018:ffff8801ce60f808 EFLAGS: 00010293 [ 30.044007] RAX: ffff8801ce6bc800 RBX: ffff8801cef57d90 RCX: ffffffff81813772 [ 30.051280] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8800af93e0c8 [ 30.058554] RBP: ffff8801ce60f950 R08: ffff8801d9f8dbd0 R09: 0000000000000000 [ 30.065825] R10: 0000000000000000 R11: 1ffff10039cc1ec0 R12: 1ffff10039cc1f11 [ 30.073100] R13: ffff8800af93e000 R14: 0000000000000010 R15: ffff8800af93e040 [ 30.080373] FS: 00007f327e242700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.088596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.094481] CR2: 0000000000000000 CR3: 00000001ce990000 CR4: 0000000000160670 [ 30.101760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.109036] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.116308] Stack: [ 30.118456] ffff8801d3aa3300 ffff8801cef57d90 ffff8801cee68218 ffff8801d9f8dbd0 [ 30.126529] ffff8801ce60f920 0000000041b58ab3 ffffffff83fc38cd ffffffff816da510 [ 30.134569] ffff8801cef57d90 ffff8801ce60f888 ffffffff817929e1 ffff8801cee681f0 [ 30.142614] Call Trace: [ 30.145203] [] ? ext4_chunk_trans_blocks+0x30/0x30 [ 30.151790] [] ? __ext4_journal_get_write_access+0x41/0x90 [ 30.159068] [] ? jbd2_buffer_abort_trigger+0x90/0x90 [ 30.165835] [] ? ext4_mark_inode_dirty+0x19f/0xbe0 [ 30.172424] [] ? jbd2__journal_start+0xf8/0x7f0 [ 30.178766] [] ? ext4_reserve_inode_write+0x180/0x180 [ 30.185624] [] __ext4_journal_stop+0x12c/0x1c0 [ 30.191867] [] ? ext4_setattr+0x2000/0x2000 [ 30.197849] [] ? inode_init_owner+0x290/0x290 [ 30.204013] [] ext4_dirty_inode+0x85/0xa0 [ 30.209833] [] __mark_inode_dirty+0x7db/0x1350 [ 30.216076] [] ? inode_init_owner+0x290/0x290 [ 30.222240] [] generic_update_time+0x1b0/0x270 [ 30.228484] [] ? inode_init_owner+0x290/0x290 [ 30.234640] [] file_update_time+0x280/0x3d0 [ 30.240626] [] ? should_remove_suid+0xe0/0xe0 [ 30.246793] [] ? __ww_mutex_lock+0x14f0/0x14f0 [ 30.253045] [] __generic_file_write_iter+0x1ca/0x580 [ 30.259818] [] ? drop_futex_key_refs.isra.10+0x83/0xe0 [ 30.266765] [] ext4_file_write_iter+0x307/0xcc0 [ 30.273099] [] ? hash_futex+0x210/0x210 [ 30.278745] [] ? ext4_unwritten_wait+0x1f0/0x1f0 [ 30.285167] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 30.292199] [] ? do_futex+0x3f4/0x15d0 [ 30.297760] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 30.304791] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 30.311821] [] __vfs_write+0x33c/0x450 [ 30.317373] [] ? __vfs_read+0x440/0x440 [ 30.323017] [] ? __fdget_pos+0x9f/0xc0 [ 30.328562] [] ? vfs_write+0x3de/0x530 [ 30.334107] [] ? check_preemption_disabled+0x3b/0x200 [ 30.340960] [] ? rcu_sync_lockdep_assert+0xd/0xb0 [ 30.347459] [] ? __sb_start_write+0x14a/0x310 [ 30.353614] [] vfs_write+0x18a/0x530 [ 30.358984] [] SyS_write+0xd9/0x1b0 [ 30.364273] [] ? SyS_read+0x1b0/0x1b0 [ 30.369739] [] ? lockdep_sys_exit_thunk+0x12/0x14 [ 30.376244] [] entry_SYSCALL_64_fastpath+0x1SeaBIOS (version 1.8.2-20171120_144221-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 0x000f2360: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000037cb26e input_len: 0x0000000001423b2c output: 0x0000000001000000 output_len: 0x0000000003bdaa40 run_size: 0x0000000005310000 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 4.4.120-gd63fdf6 (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #28 SMP PREEMPT Tue Mar 6 13:16:06 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 0x000f23e0-0x000f23ef] mapped at [ffff8800000f23e0] [ 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 0x00000000000F23A0 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 2272095867 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: 6581404K/7863876K available (40422K kernel code, 6136K rwdata, 8808K rodata, 1848K init, 23616K bss, 1282472K 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 [ 1.258092] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.259288] pid_max: default: 32768 minimum: 301 [ 1.260009] ACPI: Core revision 20150930 [ 1.703723] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.705746] Security Framework initialized [ 1.706321] SELinux: Initializing. [ 1.706981] AppArmor: AppArmor disabled by boot time parameter [ 1.707912] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.708860] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.712611] Initializing cgroup subsys io [ 1.713240] Initializing cgroup subsys freezer [ 1.713903] Initializing cgroup subsys hugetlb [ 1.714743] Initializing cgroup subsys debug [ 1.715630] CPU: Physical Processor ID: 0 [ 1.717583] mce: CPU supports 32 MCE banks [ 1.718345] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.719173] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.720076] Spectre V2 : Vulnerable: Minimal generic ASM retpoline [ 1.723229] Freeing SMP alternatives memory: 44K [ 1.732692] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.847389] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.849129] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.937682] x86: Booting SMP configuration: [ 1.938369] .... node #0, CPUs: #1 [ 1.939208] kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock [ 1.944284] x86: Booted up 1 node, 2 CPUs [ 1.944899] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.949176] devtmpfs: initialized [ 1.959639] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.961037] futex hash table entries: 512 (order: 4, 65536 bytes) [ 1.962795] xor: automatically using best checksumming function: [ 1.975439] kworker/u4:0 (21) used greatest stack depth: 27448 bytes left [ 2.057419] avx : 20968.400 MB/sec [ 2.058795] RTC time: 20:27:55, date: 03/14/18 [ 2.061250] NET: Registered protocol family 16 [ 2.062382] schedtune: init normalization constants... [ 2.063098] schedtune: no energy model data [ 2.063733] schedtune: disabled! [ 2.097681] cpuidle: using governor ladder [ 2.127464] cpuidle: using governor menu [ 2.128796] ACPI: bus type PCI registered [ 2.129399] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 2.132371] PCI: Using configuration type 1 for base access [ 2.577463] raid6: sse2x1 gen() 4598 MB/s [ 2.747474] raid6: sse2x1 xor() 2544 MB/s [ 2.917473] raid6: sse2x2 gen() 7258 MB/s [ 3.087477] raid6: sse2x2 xor() 4142 MB/s [ 3.257504] raid6: sse2x4 gen() 9583 MB/s [ 3.427500] raid6: sse2x4 xor() 5480 MB/s [ 3.597513] raid6: avx2x1 gen() 9123 MB/s [ 3.767535] raid6: avx2x2 gen() 13810 MB/s [ 3.937531] raid6: avx2x4 gen() 18492 MB/s [ 3.938249] raid6: using algorithm avx2x4 gen() 18492 MB/s [ 3.939074] raid6: using avx2x2 recovery algorithm [ 3.940392] ACPI: Added _OSI(Module Device) [ 3.941048] ACPI: Added _OSI(Processor Device) [ 3.941715] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.942461] ACPI: Added _OSI(Processor Aggregator Device) [ 3.968822] ACPI: Executed 2 blocks of module-level executable AML code [ 4.833180] ACPI: Interpreter enabled [ 4.834204] ACPI: (supports S0 S3 S4 S5) [ 4.834799] ACPI: Using IOAPIC for interrupt routing [ 4.835936] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug