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-2 port 1 (session ID: d4c35defa5c5551cfd1699a957be42ca7307cfe1df7e8877f08f54b3a9d28e47, active connections: 1). SeaBIOS (version 1.8.2-20181112_143635-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f2a70: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in extract_kernel input_data: 0x00000000080062ea input_len: 0x0000000004ffcffb output: 0x0000000001000000 output_len: 0x000000000b9799b0 kernel_total_size: 0x000000000c026000 trampoline_32bit: 0x000000000009d000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Linux version 4.20.0-rc7+ (syzkaller@ci) (clang version 8.0.0 (trunk 349734)) #6 SMP Thu Dec 20 12:04:27 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=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 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Hygon HygonGenuine [ 0.000000] Centaur CentaurHauls [ 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] 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 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] printk: bootconsole [earlyser0] enabled [ 0.000000] Malformed early option 'vsyscall' [ 0.000000] nopcid: PCID feature disabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.000000] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f2ce0-0x000f2cef] mapped at [(____ptrval____)] [ 0.000000] check: 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 0x00000000000F2AB0 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDBA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDBE0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFFF3A0 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] 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 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Zeroed struct page in unavailable ranges: 101 pages [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 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 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] random: get_random_bytes called from start_kernel+0x175/0xbf2 with crng_init=0 [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] percpu: Embedded 194 pages/cpu @(____ptrval____) s757704 r8192 d28728 u1048576 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1927557 [ 0.000000] Policy zone: Normal [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=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 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 0.000000] Memory: 7445964K/7863916K available (163869K kernel code, 4571K rwdata, 8300K rodata, 4652K init, 10780K bss, 417952K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Starting KernelMemorySanitizer [ 0.000000] rcu: Hierarchical RCU implementation. [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 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] printk: console [ttyS0] enabled [ 0.000000] printk: console [ttyS0] enabled [ 0.000000] printk: bootconsole [earlyser0] disabled [ 0.000000] printk: bootconsole [earlyser0] disabled [ 0.000000] ACPI: Core revision 20181003 [ 0.000000] APIC: Switch to symmetric I/O mode setup [ 0.000000] x2apic: IRQ remapping doesn't support X2APIC mode [ 0.000000] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 0.060000] tsc: PIT calibration matches PMTIMER. 1 loops [ 0.060000] tsc: Detected 2299.959 MHz processor [ 0.000023] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x21270e7e38d, max_idle_ns: 440795314675 ns [ 0.001624] Calibrating delay loop (skipped), value calculated using timer frequency.. 4599.91 BogoMIPS (lpj=22999590) [ 0.003214] pid_max: default: 32768 minimum: 301 [ 0.004561] LSM: Security Framework initializing [ 0.005286] Yama: becoming mindful. [ 0.006507] AppArmor: AppArmor initialized [ 0.045244] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.063436] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.065274] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.066827] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.068027] ================================================================== [ 0.069116] BUG: KMSAN: uninit-value in kmem_cache_alloc+0x8b6/0xc40 [ 0.070137] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc7+ #6 [ 0.071348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.071612] Call Trace: [ 0.071612] dump_stack+0x1c9/0x220 [ 0.071612] kmsan_report+0x12d/0x290 [ 0.071612] kmsan_internal_check_memory+0x9a7/0xa20 [ 0.071612] __msan_instrument_asm_load+0x8a/0x90 [ 0.071612] kmem_cache_alloc+0x8b6/0xc40 [ 0.071612] ? __kernfs_new_node+0x196/0xae0 [ 0.071612] __kernfs_new_node+0x196/0xae0 [ 0.071612] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 0.071612] kernfs_create_dir_ns+0x1c8/0x5a0 [ 0.071612] sysfs_create_dir_ns+0x254/0x600 [ 0.071612] kobject_add_internal+0xd10/0x1800 [ 0.071612] ? kobject_set_name_vargs+0x2e0/0x380 [ 0.071612] kobject_add+0x31a/0x4f0 [ 0.071612] kobject_create_and_add+0x2a0/0x540 [ 0.071612] mnt_init+0x2bb/0x49e [ 0.071612] vfs_caches_init+0xa8/0xd9 [ 0.071612] start_kernel+0x963/0xbf2 [ 0.071612] x86_64_start_reservations+0x19/0x2f [ 0.071612] x86_64_start_kernel+0x84/0x87 [ 0.071612] secondary_startup_64+0xa4/0xb0 [ 0.071612] [ 0.071612] Uninit was created at: [ 0.071612] kmsan_save_stack_with_flags+0x7a/0x130 [ 0.071612] kmsan_internal_alloc_meta_for_pages+0x113/0x580 [ 0.071612] kmsan_alloc_page+0x77/0xc0 [ 0.071612] __alloc_pages_nodemask+0x160e/0x60c0 [ 0.071612] alloc_pages_current+0x4fe/0xa50 [ 0.071612] new_slab+0x3d7/0x1c50 [ 0.071612] ___slab_alloc+0x1519/0x2160 [ 0.071612] kmem_cache_alloc+0xb5e/0xc40 [ 0.071612] __kernfs_new_node+0x196/0xae0 [ 0.071612] kernfs_create_root+0x23e/0x610 [ 0.071612] sysfs_init+0x40/0x1f0 [ 0.071612] mnt_init+0x26b/0x49e [ 0.071612] vfs_caches_init+0xa8/0xd9 [ 0.071612] start_kernel+0x963/0xbf2 [ 0.071612] x86_64_start_reservations+0x19/0x2f [ 0.071612] x86_64_start_kernel+0x84/0x87 [ 0.071612] secondary_startup_64+0xa4/0xb0 [ 0.071612] [ 0.071612] Bytes 0-7 of 8 are uninitialized [ 0.071612] Memory access of size 8 starts at ffff8881de7ab110 [ 0.071612] ================================================================== [ 0.071612] Disabling lock debugging due to kernel taint [ 0.071612] Kernel panic - not syncing: panic_on_warn set ... [ 0.071612] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 4.20.0-rc7+ #6 [ 0.071612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.071612] Call Trace: [ 0.071612] dump_stack+0x1c9/0x220 [ 0.071612] panic+0x3f0/0x98f [ 0.071612] kmsan_report+0x290/0x290 [ 0.071612] kmsan_internal_check_memory+0x9a7/0xa20 [ 0.071612] __msan_instrument_asm_load+0x8a/0x90 [ 0.071612] kmem_cache_alloc+0x8b6/0xc40 [ 0.071612] ? __kernfs_new_node+0x196/0xae0 [ 0.071612] __kernfs_new_node+0x196/0xae0 [ 0.071612] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 0.071612] kernfs_create_dir_ns+0x1c8/0x5a0 [ 0.071612] sysfs_create_dir_ns+0x254/0x600 [ 0.071612] kobject_add_internal+0xd10/0x1800 [ 0.071612] ? kobject_set_name_vargs+0x2e0/0x380 [ 0.071612] kobject_add+0x31a/0x4f0 [ 0.071612] kobject_create_and_add+0x2a0/0x540 [ 0.071612] mnt_init+0x2bb/0x49e [ 0.071612] vfs_caches_init+0xa8/0xd9 [ 0.071612] start_kernel+0x963/0xbf2 [ 0.071612] x86_64_start_reservations+0x19/0x2f [ 0.071612] x86_64_start_kernel+0x84/0x87 [ 0.071612] secondary_startup_64+0xa4/0xb0 [ 0.071612] Rebooting in 86400 seconds..