Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-kmsan-gce-test-0 port 1 (session ID: 23bc5716bf0005ed7db2d5cff9ad47aeccfd3a383cfc1108b56948f40453318b, active connections: 1). SeaBIOS (version 1.8.2-20171130_102032-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 256 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2350: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in extract_kernel input_data: 0x0000000005d66276 input_len: 0x000000000327b83e output: 0x0000000001000000 output_len: 0x0000000007ade828 kernel_total_size: 0x0000000008002000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Linux version 4.16.0+ (syzkaller@ci) (clang version 7.0.0 (trunk 329391)) #78 SMP Fri Apr 6 13:59:41 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 kvm-intel.nested=1 net.core.bpf_jit_enable=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 nopcid [ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 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] Malformed early option 'vsyscall' [ 0.000000] nopcid: PCID feature disabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] random: fast init done [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.000000] e820: last_pfn = 0xbfff3 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f23d0-0x000f23df] mapped at [ (ptrval)] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F2390 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.000000] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.000000] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.000000] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.000000] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.000000] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.000000] tsc: Using PIT calibration value [ 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] Reserved but unavailable: 98 pages [ 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] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] setup_percpu: pcpu_fc_alloc(0, 0000000000200000, 0000000000200000)=ffff88021fc00000 [ 0.000000] percpu: Embedded 73 pages/cpu @ (ptrval) s261200 r8192 d29616 u1048576 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1919867 [ 0.000000] Policy zone: Normal [ 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 kvm-intel.nested=1 net.core.bpf_jit_enable=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 nopcid [ 0.000000] Memory: 7481880K/7863876K available (106512K kernel code, 2869K rwdata, 5540K rodata, 3940K init, 9208K bss, 381996K 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] __START_KERNEL_map: ffffffff80000000, end (__bss_stop): ffffffff88fdc000 [ 0.000000] __bss: ffffffff886de000-ffffffff88fdc000, __data: ffffffff88000000-ffffffff882cd680 [ 0.000000] upper start: ffff880000000000, end: ffff880008fdc000 [ 0.000000] Starting KernelMemorySanitizer [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [ttyS0] enabled [ 0.000000] console [ttyS0] enabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] bootconsole [earlyser0] disabled [ 0.000000] ACPI: Core revision 20180105 [ 0.000000] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 0.001000] APIC: Switch to symmetric I/O mode setup [ 0.002000] x2apic: IRQ remapping doesn't support X2APIC mode [ 0.005000] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 0.011000] tsc: PIT calibration matches PMTIMER. 1 loops [ 0.012000] tsc: Detected 2299.926 MHz processor [ 0.013000] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x2126ef5dea4, max_idle_ns: 440795246166 ns [ 0.014025] Calibrating delay loop (skipped), value calculated using timer frequency.. 4599.85 BogoMIPS (lpj=2299926) [ 0.015017] pid_max: default: 32768 minimum: 301 [ 0.016283] Security Framework initialized [ 0.017025] SELinux: Initializing. [ 0.040163] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.052224] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.053327] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.054252] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.057644] CPU: Physical Processor ID: 0 [ 0.058096] mce: CPU supports 32 MCE banks [ 0.059087] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 0.059927] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 0.060032] Spectre V2 : Vulnerable: Minimal generic ASM retpoline [ 0.063401] Freeing SMP alternatives memory: 60K [ 0.066000] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 0.067574] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 0.069323] Hierarchical SRCU implementation. [ 0.072312] smp: Bringing up secondary CPUs ... [ 0.075213] x86: Booting SMP configuration: [ 0.075921] .... node #0, CPUs: #1 [ 0.077226] smp: Brought up 1 node, 2 CPUs [ 0.078625] smpboot: Max logical packages: 1 [ 0.079027] smpboot: Total of 2 processors activated (9199.70 BogoMIPS) [ 0.083547] devtmpfs: initialized [ 0.088497] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.089234] kworker/u4:0 (20) used greatest stack depth: 58840 bytes left [ 0.090284] futex hash table entries: 512 (order: 3, 32768 bytes) [ 0.097918] NET: Registered protocol family 16 [ 0.100487] audit: initializing netlink subsys (disabled) [ 0.102229] audit: type=2000 audit(1523023381.102:1): state=initialized audit_enabled=0 res=1 [ 0.111053] cpuidle: using governor menu [ 0.111989] ACPI: bus type PCI registered [ 0.114068] PCI: Using configuration type 1 for base access [ 0.149135] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 0.150000] IP: strlen+0x45/0xa0 [ 0.150000] PGD 0 P4D 0 [ 0.150000] Oops: 0000 [#1] SMP PTI [ 0.150000] Dumping ftrace buffer: [ 0.150000] (ftrace buffer empty) [ 0.150000] Modules linked in: [ 0.150000] CPU: 0 PID: 80 Comm: kworker/u4:2 Not tainted 4.16.0+ #78 [ 0.150000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.150000] RIP: 0010:strlen+0x45/0xa0 [ 0.150000] RSP: 0000:ffff8801de1efe10 EFLAGS: 00010246 [ 0.150000] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 0.150000] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: 0000000000000000 [ 0.150000] RBP: ffff8801de1efe40 R08: 0000000001080020 R09: 0000000000000002 [ 0.150000] R10: 0000000000000000 R11: ffff8801de1e0000 R12: ffff8801dea48918 [ 0.150000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 0.150000] FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 0.150000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.150000] CR2: 0000000000000000 CR3: 0000000008018000 CR4: 00000000001406f0 [ 0.150000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 0.150000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 0.150000] Call Trace: [ 0.150000] getname_kernel+0x4f/0x4c0 [ 0.150000] ================================================================== [ 0.150000] BUG: KMSAN: uninit-value in __module_address+0x4c4/0x600 [ 0.150000] CPU: 0 PID: 80 Comm: kworker/u4:2 Not tainted 4.16.0+ #78 [ 0.150000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.150000] Call Trace: [ 0.150000] dump_stack+0x1e2/0x230 [ 0.150000] ? __module_address+0x4c4/0x600 [ 0.150000] kmsan_report+0x142/0x240 [ 0.150000] __msan_warning_32+0x64/0xb0 [ 0.150000] __module_address+0x4c4/0x600 [ 0.150000] ? msan_get_shadow_origin_ptr+0x210/0x230 [ 0.150000] is_module_text_address+0x4b/0x2c0 [ 0.150000] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 0.150000] kernel_text_address+0x1b9/0x3a0 [ 0.150000] __kernel_text_address+0x34/0xe0 [ 0.150000] show_trace_log_lvl+0x961/0x1030 [ 0.150000] ? call_usermodehelper_exec_async+0x4bd/0x800 [ 0.150000] show_regs+0x146/0x600 [ 0.150000] __die+0x37a/0x4b0 [ 0.150000] no_context+0x1194/0x1300 [ 0.150000] ? kmsan_set_origin_inline+0x6b/0x120 [ 0.150000] ? __msan_poison_alloca+0x14f/0x1c0 [ 0.150000] __bad_area_nosemaphore+0x156/0xc30 [ 0.150000] ? kmsan_set_origin_inline+0x6b/0x120 [ 0.150000] bad_area_nosemaphore+0xbe/0xd0 [ 0.150000] __do_page_fault+0x666/0x1a90 [ 0.150000] ? kmsan_set_origin+0x9e/0x160 [ 0.150000] ? page_fault+0x25/0x50 [ 0.150000] do_page_fault+0xd3/0x2a0 [ 0.150000] page_fault+0x25/0x50 [ 0.150000] RIP: 0010:strlen+0x45/0xa0 [ 0.150000] RSP: 0000:ffff8801de1efe10 EFLAGS: 00010246 [ 0.150000] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 0.150000] RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: 0000000000000000 [ 0.150000] RBP: ffff8801de1efe40 R08: 0000000001080020 R09: 0000000000000002 [ 0.150000] R10: 0000000000000000 R11: ffff8801de1e0000 R12: ffff8801dea48918 [ 0.150000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 0.150000] getname_kernel+0x4f/0x4c0 [ 0.150000] call_usermodehelper_exec_async+0x4bd/0x800 [ 0.150000] ? proc_cap_handler+0x6b0/0x6b0 [ 0.150000] ret_from_fork+0x35/0x40 [ 0.150000] [ 0.150000] Local variable description: ----success.i.i.i.i@prepare_kernel_cred [ 0.150000] Variable was created at: [ 0.150000] prepare_kernel_cred+0x92/0xdc0 [ 0.150000] call_usermodehelper_exec_async+0x10f/0x800 [ 0.150000] ================================================================== [ 0.150000] Kernel panic - not syncing: panic_on_warn set ... [ 0.150000] [ 0.150000] Shutting down cpus with NMI [ 0.150000] Dumping ftrace buffer: [ 0.150000] (ftrace buffer empty) [ 0.150000] Rebooting in 86400 seconds..