KASAN: slab-out-of-bounds Write in get_tpkt_data
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syzbot
Apr 11, 2019, 4:44:28 AM4/11/19
to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: c3c51ea3 x86: vdso: Fix leaky vdso linker with CC=clang.
git tree: android-4.4
console output: https://syzkaller.appspot.com/x/log.txt?x=1149ad77800000
kernel config: https://syzkaller.appspot.com/x/.config?x=69a973bb5ca1350a
dashboard link: https://syzkaller.appspot.com/bug?extid=1eaf02d68abda31f688b
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c27427800000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d47057800000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+1eaf02...@syzkaller.appspotmail.com
random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy
available)
random: sshd: uninitialized urandom read (32 bytes read, 124 bits of
entropy available)
random: nonblocking pool is initialized
nf_conntrack: automatic helper assignment is deprecated and it will be
removed soon. Use the iptables CT target to attach helpers instead.
==================================================================
BUG: KASAN: slab-out-of-bounds in get_tpkt_data+0x926/0xa10
net/netfilter/nf_conntrack_h323_main.c:218
Write of size 2 at addr ffff8800b2332662 by task syz-executor526/3711
CPU: 1 PID: 3711 Comm: syz-executor526 Not tainted 4.4.132-gc3c51ea #47
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
0000000000000000 f1a81b829ab24645 ffff8801db306cb0 ffffffff81e0df8d
ffffea0002c8cc80 ffff8800b2332662 0000000000000001 ffff8800b2332662
ffff8801cdfa64b8 ffff8801db306ce8 ffffffff8151526c ffff8800b2332662
Call Trace:
<IRQ> [<ffffffff81e0df8d>] __dump_stack lib/dump_stack.c:15 [inline]
<IRQ> [<ffffffff81e0df8d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
[<ffffffff8151526c>] print_address_description+0x6c/0x216
mm/kasan/report.c:252
[<ffffffff8151558b>] kasan_report_error mm/kasan/report.c:351 [inline]
[<ffffffff8151558b>] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408
[<ffffffff814f90e7>] __asan_report_store2_noabort+0x17/0x20
mm/kasan/report.c:432
[<ffffffff8311e846>] get_tpkt_data+0x926/0xa10
net/netfilter/nf_conntrack_h323_main.c:218
[<ffffffff8311ed08>] q931_help+0x1a8/0x1020
net/netfilter/nf_conntrack_h323_main.c:1177
[<ffffffff83522b2e>] ipv6_helper+0x2de/0x3e0
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c:131
[<ffffffff830c0dd2>] nf_iterate+0x182/0x210 net/netfilter/core.c:274
[<ffffffff830c1016>] nf_hook_slow+0x1b6/0x340 net/netfilter/core.c:306
[<ffffffff8343158c>] nf_hook_thresh include/linux/netfilter.h:187 [inline]
[<ffffffff8343158c>] NF_HOOK_COND include/linux/netfilter.h:239 [inline]
[<ffffffff8343158c>] ip6_output+0x28c/0x520 net/ipv6/ip6_output.c:145
[<ffffffff8342990a>] dst_output include/net/dst.h:498 [inline]
[<ffffffff8342990a>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff8342990a>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff8342990a>] ip6_xmit+0xc7a/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ccdbd>] tcp_v6_send_response+0xbed/0x1550
net/ipv6/tcp_ipv6.c:834
[<ffffffff834cdd06>] tcp_v6_send_reset+0x286/0x9d0 net/ipv6/tcp_ipv6.c:904
[<ffffffff834d03be>] tcp_v6_rcv+0xb4e/0x2980 net/ipv6/tcp_ipv6.c:1498
[<ffffffff834345de>] ip6_input_finish+0x32e/0x1550 net/ipv6/ip6_input.c:248
[<ffffffff834375c6>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff834375c6>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff834375c6>] ip6_input+0xf6/0x200 net/ipv6/ip6_input.c:280
[<ffffffff83433dad>] dst_input include/net/dst.h:504 [inline]
[<ffffffff83433dad>] ip6_rcv_finish+0x13d/0x640 net/ipv6/ip6_input.c:62
[<ffffffff834368cb>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff834368cb>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff834368cb>] ipv6_rcv+0x10cb/0x1cd0 net/ipv6/ip6_input.c:186
[<ffffffff82f7d5b6>] __netif_receive_skb_core+0x12d6/0x2940
net/core/dev.c:4019
[<ffffffff82f7ec7b>] __netif_receive_skb+0x5b/0x1b0 net/core/dev.c:4054
[<ffffffff82f83206>] process_backlog+0x216/0x6a0 net/core/dev.c:4647
[<ffffffff82f80042>] napi_poll net/core/dev.c:4885 [inline]
[<ffffffff82f80042>] net_rx_action+0x3a2/0xdb0 net/core/dev.c:4950
[<ffffffff838c36ec>] __do_softirq+0x22c/0xa1a kernel/softirq.c:273
[<ffffffff838c149c>] do_softirq_own_stack+0x1c/0x30
arch/x86/entry/entry_64.S:929
<EOI> [<ffffffff8113d884>] do_softirq.part.16+0x54/0x60
kernel/softirq.c:317
[<ffffffff8113d956>] do_softirq arch/x86/include/asm/preempt.h:22 [inline]
[<ffffffff8113d956>] __local_bh_enable_ip+0xc6/0xd0 kernel/softirq.c:170
[<ffffffff83427960>] local_bh_enable include/linux/bottom_half.h:31
[inline]
[<ffffffff83427960>] rcu_read_unlock_bh include/linux/rcupdate.h:957
[inline]
[<ffffffff83427960>] ip6_finish_output2+0x970/0x1ca0
net/ipv6/ip6_output.c:114
[<ffffffff83430f58>] ip6_finish_output+0x3b8/0x760
net/ipv6/ip6_output.c:131
[<ffffffff834314b8>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
[<ffffffff834314b8>] ip6_output+0x1b8/0x520 net/ipv6/ip6_output.c:145
[<ffffffff8342990a>] dst_output include/net/dst.h:498 [inline]
[<ffffffff8342990a>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff8342990a>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff8342990a>] ip6_xmit+0xc7a/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ea135>] inet6_csk_xmit+0x245/0x490
net/ipv6/inet6_connection_sock.c:176
[<ffffffff8327f352>] tcp_transmit_skb+0x1642/0x2bf0
net/ipv4/tcp_output.c:1029
[<ffffffff83287a51>] tcp_send_syn_data net/ipv4/tcp_output.c:3240 [inline]
[<ffffffff83287a51>] tcp_connect+0x1a01/0x2c60 net/ipv4/tcp_output.c:3275
[<ffffffff834cbb0e>] tcp_v6_connect+0x14ae/0x1b70 net/ipv6/tcp_ipv6.c:294
[<ffffffff832f7a49>] __inet_stream_connect+0x2a9/0xc30
net/ipv4/af_inet.c:615
[<ffffffff83247974>] tcp_sendmsg_fastopen net/ipv4/tcp.c:1092 [inline]
[<ffffffff83247974>] tcp_sendmsg+0x1214/0x2b20 net/ipv4/tcp.c:1112
[<ffffffff832fec93>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
[<ffffffff82f1cdac>] sock_sendmsg_nosec net/socket.c:625 [inline]
[<ffffffff82f1cdac>] sock_sendmsg+0xcc/0x110 net/socket.c:635
[<ffffffff82f1da8c>] SYSC_sendto+0x21c/0x370 net/socket.c:1665
[<ffffffff82f20110>] SyS_sendto+0x40/0x50 net/socket.c:1633
[<ffffffff838c0225>] entry_SYSCALL_64_fastpath+0x22/0x9e
Allocated by task 3711:
[<ffffffff810341d6>] save_stack_trace+0x26/0x50
arch/x86/kernel/stacktrace.c:63
[<ffffffff814f8133>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
[<ffffffff814f8417>] set_track mm/kasan/kasan.c:524 [inline]
[<ffffffff814f8417>] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:616
[<ffffffff814f8bf4>] kasan_krealloc+0x64/0x80 mm/kasan/kasan.c:654
[<ffffffff81479b8c>] __do_krealloc mm/slab_common.c:1196 [inline]
[<ffffffff81479b8c>] __krealloc+0x8c/0xb0 mm/slab_common.c:1222
[<ffffffff830f7f03>] __nf_ct_ext_add_length+0x223/0xb50
net/netfilter/nf_conntrack_extend.c:104
[<ffffffff830e9b7f>] nf_ct_helper_ext_add
net/netfilter/nf_conntrack_helper.c:176 [inline]
[<ffffffff830e9b7f>] __nf_ct_try_assign_helper+0x30f/0x850
net/netfilter/nf_conntrack_helper.c:230
[<ffffffff830dedb8>] init_conntrack+0x728/0xd40
net/netfilter/nf_conntrack_core.c:1006
[<ffffffff830e01b9>] resolve_normal_ct
net/netfilter/nf_conntrack_core.c:1056 [inline]
[<ffffffff830e01b9>] nf_conntrack_in+0xde9/0x1220
net/netfilter/nf_conntrack_core.c:1145
[<ffffffff83522d55>] ipv6_conntrack_local+0x95/0xf0
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c:184
[<ffffffff830c0dd2>] nf_iterate+0x182/0x210 net/netfilter/core.c:274
[<ffffffff830c1016>] nf_hook_slow+0x1b6/0x340 net/netfilter/core.c:306
[<ffffffff83429b1c>] nf_hook_thresh include/linux/netfilter.h:187 [inline]
[<ffffffff83429b1c>] NF_HOOK_THRESH include/linux/netfilter.h:224 [inline]
[<ffffffff83429b1c>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff83429b1c>] ip6_xmit+0xe8c/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ea135>] inet6_csk_xmit+0x245/0x490
net/ipv6/inet6_connection_sock.c:176
[<ffffffff8327f352>] tcp_transmit_skb+0x1642/0x2bf0
net/ipv4/tcp_output.c:1029
[<ffffffff83287a51>] tcp_send_syn_data net/ipv4/tcp_output.c:3240 [inline]
[<ffffffff83287a51>] tcp_connect+0x1a01/0x2c60 net/ipv4/tcp_output.c:3275
[<ffffffff834cbb0e>] tcp_v6_connect+0x14ae/0x1b70 net/ipv6/tcp_ipv6.c:294
[<ffffffff832f7a49>] __inet_stream_connect+0x2a9/0xc30
net/ipv4/af_inet.c:615
[<ffffffff83247974>] tcp_sendmsg_fastopen net/ipv4/tcp.c:1092 [inline]
[<ffffffff83247974>] tcp_sendmsg+0x1214/0x2b20 net/ipv4/tcp.c:1112
[<ffffffff832fec93>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
[<ffffffff82f1cdac>] sock_sendmsg_nosec net/socket.c:625 [inline]
[<ffffffff82f1cdac>] sock_sendmsg+0xcc/0x110 net/socket.c:635
[<ffffffff82f1da8c>] SYSC_sendto+0x21c/0x370 net/socket.c:1665
[<ffffffff82f20110>] SyS_sendto+0x40/0x50 net/socket.c:1633
[<ffffffff838c0225>] entry_SYSCALL_64_fastpath+0x22/0x9e
Freed by task 2174:
[<ffffffff810341d6>] save_stack_trace+0x26/0x50
arch/x86/kernel/stacktrace.c:63
[<ffffffff814f8133>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
[<ffffffff814f8a62>] set_track mm/kasan/kasan.c:524 [inline]
[<ffffffff814f8a62>] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589
[<ffffffff814f5f64>] slab_free_hook mm/slub.c:1383 [inline]
[<ffffffff814f5f64>] slab_free_freelist_hook mm/slub.c:1405 [inline]
[<ffffffff814f5f64>] slab_free mm/slub.c:2859 [inline]
[<ffffffff814f5f64>] kfree+0xf4/0x310 mm/slub.c:3749
[<ffffffff816a5214>] kernfs_put_open_node.isra.3+0xa4/0xf0
fs/kernfs/file.c:609
[<ffffffff816a5320>] kernfs_fop_release+0xc0/0x140 fs/kernfs/file.c:734
[<ffffffff81522655>] __fput+0x235/0x6f0 fs/file_table.c:208
[<ffffffff81522b95>] ____fput+0x15/0x20 fs/file_table.c:244
[<ffffffff8118bb8f>] task_work_run+0x10f/0x190 kernel/task_work.c:115
[<ffffffff8100362d>] tracehook_notify_resume include/linux/tracehook.h:191
[inline]
[<ffffffff8100362d>] exit_to_usermode_loop+0x13d/0x160
arch/x86/entry/common.c:252
[<ffffffff81006535>] prepare_exit_to_usermode arch/x86/entry/common.c:283
[inline]
[<ffffffff81006535>] syscall_return_slowpath+0x1b5/0x1f0
arch/x86/entry/common.c:348
[<ffffffff838c03b5>] int_ret_from_sys_call+0x25/0xa3
The buggy address belongs to the object at ffff8800b2332600
which belongs to the cache kmalloc-96 of size 96
The buggy address is located 2 bytes to the right of
96-byte region [ffff8800b2332600, ffff8800b2332660)
The buggy address belongs to the page:
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Initializing cgroup subsys cpuacct
Initializing cgroup subsys schedtune
Linux version 4.4.132-gc3c51ea (syzkaller@ci) (gcc version 8.0.1 20180413
(experimental) (GCC) ) #47 SMP PREEMPT Wed May 23 23:30:50 UTC 2018
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 nopti
KERNEL supported cpus:
Intel GenuineIntel
AMD AuthenticAMD
Centaur CentaurHauls
x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers'
x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers'
x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers'
x86/fpu: Enabled xstate features 0x7, context size is 832 bytes,
using 'standard' format.
x86/fpu: Using 'eager' FPU context switches.
e820: BIOS-provided physical RAM map:
BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
BIOS-e820: [mem 0x0000000000100000-0x00000000bfff2fff] usable
BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] reserved
BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved
BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable
bootconsole [earlyser0] enabled
NX (Execute Disable) protection: active
SMBIOS 2.4 present.
Hypervisor detected: KVM
Kernel/User page tables isolation: disabled
e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000
x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
e820: last_pfn = 0xbfff3 max_arch_pfn = 0x400000000
found SMP MP-table at [mem 0x000f23d0-0x000f23df] mapped at
[ffff8800000f23d0]
Scanning 1 areas for low memory corruption
Using GB pages for direct mapping
ACPI: Early table checksum verification disabled
ACPI: RSDP 0x00000000000F2390 000014 (v00 Google)
ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG
00000001)
ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG
00000001)
ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG
00000001)
ACPI: FACS 0x00000000BFFFCF00 000040
ACPI: FACS 0x00000000BFFFCF00 000040
ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG
00000001)
ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG
00000001)
ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG
00000001)
ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG
00000001)
kvm-clock: Using msrs 4b564d01 and 4b564d00
kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock
kvm-clock: using sched offset of 2252191468 cycles
clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb,
max_idle_ns: 881590591483 ns
Zone ranges:
DMA [mem 0x0000000000001000-0x0000000000ffffff]
DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
Normal [mem 0x0000000100000000-0x000000021fffffff]
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000000001000-0x000000000009efff]
node 0: [mem 0x0000000000100000-0x00000000bfff2fff]
node 0: [mem 0x0000000100000000-0x000000021fffffff]
Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff]
kasan: KernelAddressSanitizer initialized
ACPI: PM-Timer IO Port: 0xb008
ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
Using ACPI (MADT) for SMP configuration information
smpboot: Allowing 2 CPUs, 0 hotplug CPUs
PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
PM: Registered nosave memory: [mem 0xbfff3000-0xbfffffff]
PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices
Booting paravirtualized kernel on KVM
clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 19112604462750000 ns
setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1
PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134024 r8192 d29816
u1048576
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935227
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 nopti
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 6579092K/7863876K available (41752K kernel code, 6301K rwdata,
9048K rodata, 1864K init, 23696K bss, 1284784K reserved, 0K cma-reserved)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Running RCU self tests
Preemptible hierarchical RCU implementation.
RCU lockdep checking is enabled.
Build-time adjustment of leaf fanout to 64.
RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2
NR_IRQS:4352 nr_irqs:440 16
console [ttyS0] enabled
console [ttyS0] enabled
bootconsole [earlyser0] disabled
bootconsole [earlyser0] disabled
Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
... MAX_LOCKDEP_SUBCLASSES: 8
... MAX_LOCK_DEPTH: 48
... MAX_LOCKDEP_KEYS: 8191
... CLASSHASH_SIZE: 4096
... MAX_LOCKDEP_ENTRIES: 32768
... MAX_LOCKDEP_CHAINS: 65536
... CHAINHASH_SIZE: 32768
memory used by lock dependency info: 8159 kB
per task-struct memory footprint: 1920 bytes
tsc: Detected 2300.000 MHz processor
Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS
(lpj=23000000)
pid_max: default: 32768 minimum: 301
ACPI: Core revision 20150930
ACPI: 2 ACPI AML tables successfully acquired and loaded
Security Framework initialized
SELinux: Initializing.
AppArmor: AppArmor disabled by boot time parameter
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
Initializing cgroup subsys io
Initializing cgroup subsys freezer
Initializing cgroup subsys hugetlb
Initializing cgroup subsys debug
CPU: Physical Processor ID: 0
mce: CPU supports 32 MCE banks
Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
Spectre V2 : Mitigation: Full generic retpoline
Freeing SMP alternatives memory: 48K
..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1
smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f,
stepping: 0x0)
Performance Events: unsupported p6 CPU model 63 no PMU driver, software
events only.
x86: Booting SMP configuration:
.... node #0, CPUs: #1
kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock
x86: Booted up 1 node, 2 CPUs
smpboot: Total of 2 processors activated (9200.00 BogoMIPS)
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
19112604462750000 ns
futex hash table entries: 512 (order: 4, 65536 bytes)
xor: automatically using best checksumming function:
kworker/u4:0 (21) used greatest stack depth: 27920 bytes left
avx : 21644.800 MB/sec
RTC time: 3:31:42, date: 05/24/18
NET: Registered protocol family 16
schedtune: init normalization constants...
schedtune: no energy model data
schedtune: disabled!
cpuidle: using governor ladder
cpuidle: using governor menu
ACPI: bus type PCI registered
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
PCI: Using configuration type 1 for base access
kworker/u4:0 (50) used greatest stack depth: 27424 bytes left
raid6: sse2x1 gen() 4679 MB/s
raid6: sse2x1 xor() 2588 MB/s
raid6: sse2x2 gen() 7502 MB/s
raid6: sse2x2 xor() 4142 MB/s
raid6: sse2x4 gen() 9817 MB/s
raid6: sse2x4 xor() 5732 MB/s
raid6: avx2x1 gen() 9347 MB/s
raid6: avx2x2 gen() 14703 MB/s
raid6: avx2x4 gen() 19042 MB/s
raid6: using algorithm avx2x4 gen() 19042 MB/s
raid6: using avx2x2 recovery algorithm
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
ACPI: Executed 2 blocks of module-level executable AML code
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and
report a bug
ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended
PCI configuration space under this bridge.
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
syzbot found the following crash on:
HEAD commit: c3c51ea3 x86: vdso: Fix leaky vdso linker with CC=clang.
git tree: android-4.4
console output: https://syzkaller.appspot.com/x/log.txt?x=1149ad77800000
kernel config: https://syzkaller.appspot.com/x/.config?x=69a973bb5ca1350a
dashboard link: https://syzkaller.appspot.com/bug?extid=1eaf02d68abda31f688b
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c27427800000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d47057800000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+1eaf02...@syzkaller.appspotmail.com
random: sshd: uninitialized urandom read (32 bytes read, 34 bits of entropy
available)
random: sshd: uninitialized urandom read (32 bytes read, 124 bits of
entropy available)
random: nonblocking pool is initialized
nf_conntrack: automatic helper assignment is deprecated and it will be
removed soon. Use the iptables CT target to attach helpers instead.
==================================================================
BUG: KASAN: slab-out-of-bounds in get_tpkt_data+0x926/0xa10
net/netfilter/nf_conntrack_h323_main.c:218
Write of size 2 at addr ffff8800b2332662 by task syz-executor526/3711
CPU: 1 PID: 3711 Comm: syz-executor526 Not tainted 4.4.132-gc3c51ea #47
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
0000000000000000 f1a81b829ab24645 ffff8801db306cb0 ffffffff81e0df8d
ffffea0002c8cc80 ffff8800b2332662 0000000000000001 ffff8800b2332662
ffff8801cdfa64b8 ffff8801db306ce8 ffffffff8151526c ffff8800b2332662
Call Trace:
<IRQ> [<ffffffff81e0df8d>] __dump_stack lib/dump_stack.c:15 [inline]
<IRQ> [<ffffffff81e0df8d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
[<ffffffff8151526c>] print_address_description+0x6c/0x216
mm/kasan/report.c:252
[<ffffffff8151558b>] kasan_report_error mm/kasan/report.c:351 [inline]
[<ffffffff8151558b>] kasan_report.cold.7+0x175/0x2f7 mm/kasan/report.c:408
[<ffffffff814f90e7>] __asan_report_store2_noabort+0x17/0x20
mm/kasan/report.c:432
[<ffffffff8311e846>] get_tpkt_data+0x926/0xa10
net/netfilter/nf_conntrack_h323_main.c:218
[<ffffffff8311ed08>] q931_help+0x1a8/0x1020
net/netfilter/nf_conntrack_h323_main.c:1177
[<ffffffff83522b2e>] ipv6_helper+0x2de/0x3e0
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c:131
[<ffffffff830c0dd2>] nf_iterate+0x182/0x210 net/netfilter/core.c:274
[<ffffffff830c1016>] nf_hook_slow+0x1b6/0x340 net/netfilter/core.c:306
[<ffffffff8343158c>] nf_hook_thresh include/linux/netfilter.h:187 [inline]
[<ffffffff8343158c>] NF_HOOK_COND include/linux/netfilter.h:239 [inline]
[<ffffffff8343158c>] ip6_output+0x28c/0x520 net/ipv6/ip6_output.c:145
[<ffffffff8342990a>] dst_output include/net/dst.h:498 [inline]
[<ffffffff8342990a>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff8342990a>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff8342990a>] ip6_xmit+0xc7a/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ccdbd>] tcp_v6_send_response+0xbed/0x1550
net/ipv6/tcp_ipv6.c:834
[<ffffffff834cdd06>] tcp_v6_send_reset+0x286/0x9d0 net/ipv6/tcp_ipv6.c:904
[<ffffffff834d03be>] tcp_v6_rcv+0xb4e/0x2980 net/ipv6/tcp_ipv6.c:1498
[<ffffffff834345de>] ip6_input_finish+0x32e/0x1550 net/ipv6/ip6_input.c:248
[<ffffffff834375c6>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff834375c6>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff834375c6>] ip6_input+0xf6/0x200 net/ipv6/ip6_input.c:280
[<ffffffff83433dad>] dst_input include/net/dst.h:504 [inline]
[<ffffffff83433dad>] ip6_rcv_finish+0x13d/0x640 net/ipv6/ip6_input.c:62
[<ffffffff834368cb>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff834368cb>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff834368cb>] ipv6_rcv+0x10cb/0x1cd0 net/ipv6/ip6_input.c:186
[<ffffffff82f7d5b6>] __netif_receive_skb_core+0x12d6/0x2940
net/core/dev.c:4019
[<ffffffff82f7ec7b>] __netif_receive_skb+0x5b/0x1b0 net/core/dev.c:4054
[<ffffffff82f83206>] process_backlog+0x216/0x6a0 net/core/dev.c:4647
[<ffffffff82f80042>] napi_poll net/core/dev.c:4885 [inline]
[<ffffffff82f80042>] net_rx_action+0x3a2/0xdb0 net/core/dev.c:4950
[<ffffffff838c36ec>] __do_softirq+0x22c/0xa1a kernel/softirq.c:273
[<ffffffff838c149c>] do_softirq_own_stack+0x1c/0x30
arch/x86/entry/entry_64.S:929
<EOI> [<ffffffff8113d884>] do_softirq.part.16+0x54/0x60
kernel/softirq.c:317
[<ffffffff8113d956>] do_softirq arch/x86/include/asm/preempt.h:22 [inline]
[<ffffffff8113d956>] __local_bh_enable_ip+0xc6/0xd0 kernel/softirq.c:170
[<ffffffff83427960>] local_bh_enable include/linux/bottom_half.h:31
[inline]
[<ffffffff83427960>] rcu_read_unlock_bh include/linux/rcupdate.h:957
[inline]
[<ffffffff83427960>] ip6_finish_output2+0x970/0x1ca0
net/ipv6/ip6_output.c:114
[<ffffffff83430f58>] ip6_finish_output+0x3b8/0x760
net/ipv6/ip6_output.c:131
[<ffffffff834314b8>] NF_HOOK_COND include/linux/netfilter.h:240 [inline]
[<ffffffff834314b8>] ip6_output+0x1b8/0x520 net/ipv6/ip6_output.c:145
[<ffffffff8342990a>] dst_output include/net/dst.h:498 [inline]
[<ffffffff8342990a>] NF_HOOK_THRESH include/linux/netfilter.h:226 [inline]
[<ffffffff8342990a>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff8342990a>] ip6_xmit+0xc7a/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ea135>] inet6_csk_xmit+0x245/0x490
net/ipv6/inet6_connection_sock.c:176
[<ffffffff8327f352>] tcp_transmit_skb+0x1642/0x2bf0
net/ipv4/tcp_output.c:1029
[<ffffffff83287a51>] tcp_send_syn_data net/ipv4/tcp_output.c:3240 [inline]
[<ffffffff83287a51>] tcp_connect+0x1a01/0x2c60 net/ipv4/tcp_output.c:3275
[<ffffffff834cbb0e>] tcp_v6_connect+0x14ae/0x1b70 net/ipv6/tcp_ipv6.c:294
[<ffffffff832f7a49>] __inet_stream_connect+0x2a9/0xc30
net/ipv4/af_inet.c:615
[<ffffffff83247974>] tcp_sendmsg_fastopen net/ipv4/tcp.c:1092 [inline]
[<ffffffff83247974>] tcp_sendmsg+0x1214/0x2b20 net/ipv4/tcp.c:1112
[<ffffffff832fec93>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
[<ffffffff82f1cdac>] sock_sendmsg_nosec net/socket.c:625 [inline]
[<ffffffff82f1cdac>] sock_sendmsg+0xcc/0x110 net/socket.c:635
[<ffffffff82f1da8c>] SYSC_sendto+0x21c/0x370 net/socket.c:1665
[<ffffffff82f20110>] SyS_sendto+0x40/0x50 net/socket.c:1633
[<ffffffff838c0225>] entry_SYSCALL_64_fastpath+0x22/0x9e
Allocated by task 3711:
[<ffffffff810341d6>] save_stack_trace+0x26/0x50
arch/x86/kernel/stacktrace.c:63
[<ffffffff814f8133>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
[<ffffffff814f8417>] set_track mm/kasan/kasan.c:524 [inline]
[<ffffffff814f8417>] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:616
[<ffffffff814f8bf4>] kasan_krealloc+0x64/0x80 mm/kasan/kasan.c:654
[<ffffffff81479b8c>] __do_krealloc mm/slab_common.c:1196 [inline]
[<ffffffff81479b8c>] __krealloc+0x8c/0xb0 mm/slab_common.c:1222
[<ffffffff830f7f03>] __nf_ct_ext_add_length+0x223/0xb50
net/netfilter/nf_conntrack_extend.c:104
[<ffffffff830e9b7f>] nf_ct_helper_ext_add
net/netfilter/nf_conntrack_helper.c:176 [inline]
[<ffffffff830e9b7f>] __nf_ct_try_assign_helper+0x30f/0x850
net/netfilter/nf_conntrack_helper.c:230
[<ffffffff830dedb8>] init_conntrack+0x728/0xd40
net/netfilter/nf_conntrack_core.c:1006
[<ffffffff830e01b9>] resolve_normal_ct
net/netfilter/nf_conntrack_core.c:1056 [inline]
[<ffffffff830e01b9>] nf_conntrack_in+0xde9/0x1220
net/netfilter/nf_conntrack_core.c:1145
[<ffffffff83522d55>] ipv6_conntrack_local+0x95/0xf0
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c:184
[<ffffffff830c0dd2>] nf_iterate+0x182/0x210 net/netfilter/core.c:274
[<ffffffff830c1016>] nf_hook_slow+0x1b6/0x340 net/netfilter/core.c:306
[<ffffffff83429b1c>] nf_hook_thresh include/linux/netfilter.h:187 [inline]
[<ffffffff83429b1c>] NF_HOOK_THRESH include/linux/netfilter.h:224 [inline]
[<ffffffff83429b1c>] NF_HOOK include/linux/netfilter.h:249 [inline]
[<ffffffff83429b1c>] ip6_xmit+0xe8c/0x1a00 net/ipv6/ip6_output.c:242
[<ffffffff834ea135>] inet6_csk_xmit+0x245/0x490
net/ipv6/inet6_connection_sock.c:176
[<ffffffff8327f352>] tcp_transmit_skb+0x1642/0x2bf0
net/ipv4/tcp_output.c:1029
[<ffffffff83287a51>] tcp_send_syn_data net/ipv4/tcp_output.c:3240 [inline]
[<ffffffff83287a51>] tcp_connect+0x1a01/0x2c60 net/ipv4/tcp_output.c:3275
[<ffffffff834cbb0e>] tcp_v6_connect+0x14ae/0x1b70 net/ipv6/tcp_ipv6.c:294
[<ffffffff832f7a49>] __inet_stream_connect+0x2a9/0xc30
net/ipv4/af_inet.c:615
[<ffffffff83247974>] tcp_sendmsg_fastopen net/ipv4/tcp.c:1092 [inline]
[<ffffffff83247974>] tcp_sendmsg+0x1214/0x2b20 net/ipv4/tcp.c:1112
[<ffffffff832fec93>] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:755
[<ffffffff82f1cdac>] sock_sendmsg_nosec net/socket.c:625 [inline]
[<ffffffff82f1cdac>] sock_sendmsg+0xcc/0x110 net/socket.c:635
[<ffffffff82f1da8c>] SYSC_sendto+0x21c/0x370 net/socket.c:1665
[<ffffffff82f20110>] SyS_sendto+0x40/0x50 net/socket.c:1633
[<ffffffff838c0225>] entry_SYSCALL_64_fastpath+0x22/0x9e
Freed by task 2174:
[<ffffffff810341d6>] save_stack_trace+0x26/0x50
arch/x86/kernel/stacktrace.c:63
[<ffffffff814f8133>] save_stack+0x43/0xd0 mm/kasan/kasan.c:512
[<ffffffff814f8a62>] set_track mm/kasan/kasan.c:524 [inline]
[<ffffffff814f8a62>] kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:589
[<ffffffff814f5f64>] slab_free_hook mm/slub.c:1383 [inline]
[<ffffffff814f5f64>] slab_free_freelist_hook mm/slub.c:1405 [inline]
[<ffffffff814f5f64>] slab_free mm/slub.c:2859 [inline]
[<ffffffff814f5f64>] kfree+0xf4/0x310 mm/slub.c:3749
[<ffffffff816a5214>] kernfs_put_open_node.isra.3+0xa4/0xf0
fs/kernfs/file.c:609
[<ffffffff816a5320>] kernfs_fop_release+0xc0/0x140 fs/kernfs/file.c:734
[<ffffffff81522655>] __fput+0x235/0x6f0 fs/file_table.c:208
[<ffffffff81522b95>] ____fput+0x15/0x20 fs/file_table.c:244
[<ffffffff8118bb8f>] task_work_run+0x10f/0x190 kernel/task_work.c:115
[<ffffffff8100362d>] tracehook_notify_resume include/linux/tracehook.h:191
[inline]
[<ffffffff8100362d>] exit_to_usermode_loop+0x13d/0x160
arch/x86/entry/common.c:252
[<ffffffff81006535>] prepare_exit_to_usermode arch/x86/entry/common.c:283
[inline]
[<ffffffff81006535>] syscall_return_slowpath+0x1b5/0x1f0
arch/x86/entry/common.c:348
[<ffffffff838c03b5>] int_ret_from_sys_call+0x25/0xa3
The buggy address belongs to the object at ffff8800b2332600
which belongs to the cache kmalloc-96 of size 96
The buggy address is located 2 bytes to the right of
96-byte region [ffff8800b2332600, ffff8800b2332660)
The buggy address belongs to the page:
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Initializing cgroup subsys cpuacct
Initializing cgroup subsys schedtune
Linux version 4.4.132-gc3c51ea (syzkaller@ci) (gcc version 8.0.1 20180413
(experimental) (GCC) ) #47 SMP PREEMPT Wed May 23 23:30:50 UTC 2018
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 nopti
KERNEL supported cpus:
Intel GenuineIntel
AMD AuthenticAMD
Centaur CentaurHauls
x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers'
x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers'
x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers'
x86/fpu: Enabled xstate features 0x7, context size is 832 bytes,
using 'standard' format.
x86/fpu: Using 'eager' FPU context switches.
e820: BIOS-provided physical RAM map:
BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
BIOS-e820: [mem 0x0000000000100000-0x00000000bfff2fff] usable
BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] reserved
BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved
BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable
bootconsole [earlyser0] enabled
NX (Execute Disable) protection: active
SMBIOS 2.4 present.
Hypervisor detected: KVM
Kernel/User page tables isolation: disabled
e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000
x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT
e820: last_pfn = 0xbfff3 max_arch_pfn = 0x400000000
found SMP MP-table at [mem 0x000f23d0-0x000f23df] mapped at
[ffff8800000f23d0]
Scanning 1 areas for low memory corruption
Using GB pages for direct mapping
ACPI: Early table checksum verification disabled
ACPI: RSDP 0x00000000000F2390 000014 (v00 Google)
ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG
00000001)
ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG
00000001)
ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG
00000001)
ACPI: FACS 0x00000000BFFFCF00 000040
ACPI: FACS 0x00000000BFFFCF00 000040
ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG
00000001)
ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG
00000001)
ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG
00000001)
ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG
00000001)
kvm-clock: Using msrs 4b564d01 and 4b564d00
kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock
kvm-clock: using sched offset of 2252191468 cycles
clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb,
max_idle_ns: 881590591483 ns
Zone ranges:
DMA [mem 0x0000000000001000-0x0000000000ffffff]
DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
Normal [mem 0x0000000100000000-0x000000021fffffff]
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x0000000000001000-0x000000000009efff]
node 0: [mem 0x0000000000100000-0x00000000bfff2fff]
node 0: [mem 0x0000000100000000-0x000000021fffffff]
Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff]
kasan: KernelAddressSanitizer initialized
ACPI: PM-Timer IO Port: 0xb008
ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
Using ACPI (MADT) for SMP configuration information
smpboot: Allowing 2 CPUs, 0 hotplug CPUs
PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
PM: Registered nosave memory: [mem 0xbfff3000-0xbfffffff]
PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices
Booting paravirtualized kernel on KVM
clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
max_idle_ns: 19112604462750000 ns
setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1
PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s134024 r8192 d29816
u1048576
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935227
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 nopti
PID hash table entries: 4096 (order: 3, 32768 bytes)
Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Memory: 6579092K/7863876K available (41752K kernel code, 6301K rwdata,
9048K rodata, 1864K init, 23696K bss, 1284784K reserved, 0K cma-reserved)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Running RCU self tests
Preemptible hierarchical RCU implementation.
RCU lockdep checking is enabled.
Build-time adjustment of leaf fanout to 64.
RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2
NR_IRQS:4352 nr_irqs:440 16
console [ttyS0] enabled
console [ttyS0] enabled
bootconsole [earlyser0] disabled
bootconsole [earlyser0] disabled
Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
... MAX_LOCKDEP_SUBCLASSES: 8
... MAX_LOCK_DEPTH: 48
... MAX_LOCKDEP_KEYS: 8191
... CLASSHASH_SIZE: 4096
... MAX_LOCKDEP_ENTRIES: 32768
... MAX_LOCKDEP_CHAINS: 65536
... CHAINHASH_SIZE: 32768
memory used by lock dependency info: 8159 kB
per task-struct memory footprint: 1920 bytes
tsc: Detected 2300.000 MHz processor
Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS
(lpj=23000000)
pid_max: default: 32768 minimum: 301
ACPI: Core revision 20150930
ACPI: 2 ACPI AML tables successfully acquired and loaded
Security Framework initialized
SELinux: Initializing.
AppArmor: AppArmor disabled by boot time parameter
Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
Initializing cgroup subsys io
Initializing cgroup subsys freezer
Initializing cgroup subsys hugetlb
Initializing cgroup subsys debug
CPU: Physical Processor ID: 0
mce: CPU supports 32 MCE banks
Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
Spectre V2 : Mitigation: Full generic retpoline
Freeing SMP alternatives memory: 48K
..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1
smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f,
stepping: 0x0)
Performance Events: unsupported p6 CPU model 63 no PMU driver, software
events only.
x86: Booting SMP configuration:
.... node #0, CPUs: #1
kvm-clock: cpu 1, msr 2:1fffd041, secondary cpu clock
x86: Booted up 1 node, 2 CPUs
smpboot: Total of 2 processors activated (9200.00 BogoMIPS)
devtmpfs: initialized
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
19112604462750000 ns
futex hash table entries: 512 (order: 4, 65536 bytes)
xor: automatically using best checksumming function:
kworker/u4:0 (21) used greatest stack depth: 27920 bytes left
avx : 21644.800 MB/sec
RTC time: 3:31:42, date: 05/24/18
NET: Registered protocol family 16
schedtune: init normalization constants...
schedtune: no energy model data
schedtune: disabled!
cpuidle: using governor ladder
cpuidle: using governor menu
ACPI: bus type PCI registered
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
PCI: Using configuration type 1 for base access
kworker/u4:0 (50) used greatest stack depth: 27424 bytes left
raid6: sse2x1 gen() 4679 MB/s
raid6: sse2x1 xor() 2588 MB/s
raid6: sse2x2 gen() 7502 MB/s
raid6: sse2x2 xor() 4142 MB/s
raid6: sse2x4 gen() 9817 MB/s
raid6: sse2x4 xor() 5732 MB/s
raid6: avx2x1 gen() 9347 MB/s
raid6: avx2x2 gen() 14703 MB/s
raid6: avx2x4 gen() 19042 MB/s
raid6: using algorithm avx2x4 gen() 19042 MB/s
raid6: using avx2x2 recovery algorithm
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
ACPI: Executed 2 blocks of module-level executable AML code
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and
report a bug
ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended
PCI configuration space under this bridge.
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window]
pci_bus 0000:00: root bus resource [bus 00-ff]
pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
---
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