kernel panic: corrupted stack end in kthread Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 1 PID: 250 Comm: kworker/u4:3 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 panic+0x2c8/0x627 kernel/panic.c:274 schedule_debug kernel/sched/core.c:5737 [inline] __schedule+0x26dd/0x26f0 kernel/sched/core.c:6388 schedule+0xda/0x1b0 kernel/sched/core.c:6570 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629 kthread+0x227/0x3a0 kernel/kthread.c:369 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Kernel Offset: disabled Rebooting in 86400 seconds.. failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.0.102" "pwd"]: exit status 255 ssh: connect to host 10.128.0.102 port 22: Connection timed out 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. SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID d0652ae4-93e9-c513-40e9-e51ba5edd636 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 0x000f2490: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #0 SMP PREEMPT_DYNAMIC now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registersserialport: Connected to syzkaller.us-central1-c.ci2-upstream-usb-test-job-test-job-1 port 1 (session ID: ef1161cdecf870b7c656cb2c890c644139aee0fcee45392988257e85a27e5276, active connections: 1). ' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000][ T0] signal: max sigframe size: 1776 [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] Malformed early option 'numa' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000008][ T0] kvm-clock: using sched offset of 2906073145 cycles [ 0.001189][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004502][ T0] tsc: Detected 2200.150 MHz processor [ 0.010582][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.011742][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.013141][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.019801][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.021042][ T0] Using GB pages for direct mapping [ 0.023797][ T0] ACPI: Early table checksum verification disabled [ 0.025127][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.027071][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.028732][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.030563][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.031980][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.032987][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.033974][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.035702][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.037158][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.038745][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.040107][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.041466][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.042884][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.044333][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.045680][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.047290][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.048536][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.049773][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.051725][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.052578][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.053700][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.054742][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.055864][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.056934][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.058724][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.060616][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.099375][ T0] Zone ranges: [ 0.099987][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.101131][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.103005][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.104586][ T0] Movable zone start for each node [ 0.105789][ T0] Early memory node ranges [ 0.106531][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.107597][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.108924][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.110257][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.111933][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.112063][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.173601][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.489331][ T0] kasan: KernelAddressSanitizer initialized [ 0.492452][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.493200][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.494809][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.497157][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.498939][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.501299][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.502946][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.504502][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.505900][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.507090][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.509200][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.511454][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.513570][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.515171][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.516890][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.518513][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.520584][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.522307][ T0] Booting paravirtualized kernel on KVM [ 0.523427][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.564692][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.567294][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.569257][ T0] kvm-guest: PV spinlocks enabled [ 0.570329][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.572079][ T0] Fallback order for Node 0: 0 [ 0.573199][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.575350][ T0] Policy zone: Normal [ 0.576104][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb 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 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.596593][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.602077][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.605696][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.609361][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.613197][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.615371][ T0] software IO TLB: area num 2. [ 1.498104][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.502457][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.510697][ T0] Dynamic Preempt: voluntary [ 1.512568][ T0] Running RCU self tests [ 1.513449][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.514872][ T0] rcu: RCU lockdep checking is enabled. [ 1.516116][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.517874][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.519536][ T0] rcu: RCU debug extended QS entry/exit. [ 1.520875][ T0] All grace periods are expedited (rcu_expedited). [ 1.522320][ T0] Trampoline variant of Tasks RCU enabled. [ 1.523446][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.525722][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.546195][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.548078][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.549655][ T0] random: crng init done [ 1.551601][ T0] Console: colour VGA+ 80x25 [ 1.552929][ T0] printk: console [ttyS0] enabled [ 1.552929][ T0] printk: console [ttyS0] enabled [ 1.554735][ T0] printk: bootconsole [earlyser0] disabled [ 1.554735][ T0] printk: bootconsole [earlyser0] disabled [ 1.557347][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.559099][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.560152][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.560975][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.561874][ T0] ... CLASSHASH_SIZE: 4096 [ 1.563402][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.564708][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.566301][ T0] ... CHAINHASH_SIZE: 131072 [ 1.567860][ T0] memory used by lock dependency info: 20657 kB [ 1.569378][ T0] memory used for stack traces: 8320 kB [ 1.570386][ T0] per task-struct memory footprint: 1920 bytes [ 1.572084][ T0] ACPI: Core revision 20220331 [ 1.573761][ T0] APIC: Switch to symmetric I/O mode setup [ 1.580398][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.582595][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6c0aca63, max_idle_ns: 440795268831 ns [ 1.584869][ T0] Calibrating delay loop (skipped) preset value.. 4400.30 BogoMIPS (lpj=22001500) [ 1.586801][ T0] pid_max: default: 32768 minimum: 301 [ 1.587851][ T0] LSM: Security Framework initializing [ 1.588854][ T0] landlock: Up and running. [ 1.589497][ T0] Yama: becoming mindful. [ 1.590260][ T0] TOMOYO Linux initialized [ 1.591288][ T0] AppArmor: AppArmor initialized [ 1.593517][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.594881][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.600173][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.601731][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.604901][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.607131][ T0] Spectre V2 : Mitigation: IBRS [ 1.608459][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.610532][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.612108][ T0] RETBleed: Mitigation: IBRS [ 1.613060][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.614894][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.617405][ T0] MDS: Mitigation: Clear CPU buffers [ 1.618260][ T0] TAA: Mitigation: Clear CPU buffers [ 1.619434][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.622563][ T0] Freeing SMP alternatives memory: 60K [ 1.745241][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.748598][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.750014][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.751163][ T1] Running RCU-tasks wait API self tests [ 1.854977][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.857220][ T1] rcu: Hierarchical SRCU implementation. [ 1.858083][ T1] rcu: Max phase no-delay instances is 1000. [ 1.862135][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.863953][ T1] smp: Bringing up secondary CPUs ... [ 1.866207][ T1] x86: Booting SMP configuration: [ 1.867195][ T1] .... node #0, CPUs: #1 [ 1.869273][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 1.869273][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 1.874931][ T1] MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details. [ 1.877717][ T1] smp: Brought up 1 node, 2 CPUs [ 1.878603][ T1] smpboot: Max logical packages: 1 [ 1.879610][ T1] smpboot: Total of 2 processors activated (8800.60 BogoMIPS) [ 1.921736][ T1] allocated 134217728 bytes of page_ext [ 1.923255][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.927663][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 1.953106][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 1.955938][ T1] devtmpfs: initialized [ 1.965125][ T11] Callback from call_rcu_tasks() invoked. [ 1.974966][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.977410][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.977644][ T1] PM: RTC time: 08:49:26, date: 2022-09-03 [ 1.984890][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.986549][ T1] audit: initializing netlink subsys (disabled) [ 1.987861][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.987861][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.994926][ T25] audit: type=2000 audit(1662194966.926:1): state=initialized audit_enabled=0 res=1 [ 1.999595][ T1] cpuidle: using governor menu [ 2.000732][ T1] PCI: Using configuration type 1 for base access [ 2.147008][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.147008][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.157507][ T1] ACPI: Added _OSI(Module Device) [ 2.158400][ T1] ACPI: Added _OSI(Processor Device) [ 2.159215][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.160220][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.161186][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.162106][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.163445][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.262951][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.748575][ T1] ACPI: Interpreter enabled [ 3.749751][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.754860][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.754860][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.754860][ T1] PCI: Using E820 reservations for host bridge windows [ 3.756969][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.827153][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.828402][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.829815][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.832031][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.841667][ T1] PCI host bridge to bus 0000:00 [ 3.842431][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.843796][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.844867][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.846133][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.847537][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.849016][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.855824][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.877241][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.899083][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.903125][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.913542][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.920265][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.939874][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.950951][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.959107][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.982339][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 3.994902][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 4.025177][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.028698][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 4.038682][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 4.046592][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 4.066950][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 4.077850][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 4.084864][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 4.117792][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.123529][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.129136][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.133918][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.137268][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.147566][ T1] iommu: Default domain type: Translated [ 4.147566][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.150081][ T1] SCSI subsystem initialized [ 4.155427][ T1] ACPI: bus type USB registered [ 4.156800][ T1] usbcore: registered new interface driver usbfs [ 4.158136][ T1] usbcore: registered new interface driver hub [ 4.159502][ T1] usbcore: registered new device driver usb [ 4.164863][ T1] mc: Linux media interface: v0.10 [ 4.164863][ T1] videodev: Linux video capture interface: v2.00 [ 4.164863][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.164863][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.166569][ T1] PTP clock support registered [ 4.168427][ T1] EDAC MC: Ver: 3.0.0 [ 4.175972][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.178649][ T1] Bluetooth: Core ver 2.22 [ 4.178649][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.178649][ T1] Bluetooth: HCI device and connection manager initialized [ 4.179873][ T1] Bluetooth: HCI socket layer initialized [ 4.184864][ T1] Bluetooth: L2CAP socket layer initialized [ 4.184864][ T1] NET: Registered PF_ATMPVC protocol family [ 4.184864][ T1] NET: Registered PF_ATMSVC protocol family [ 4.184864][ T1] NetLabel: Initializing [ 4.184864][ T1] NetLabel: domain hash size = 128 [ 4.185678][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.187381][ T1] NetLabel: unlabeled traffic allowed by default [ 4.190651][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.192138][ T1] NET: Registered PF_NFC protocol family [ 4.193408][ T1] PCI: Using ACPI for IRQ routing [ 4.195564][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.197217][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.198686][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.200559][ T1] vgaarb: loaded [ 4.205979][ T1] clocksource: Switched to clocksource kvm-clock [ 4.210538][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.211995][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 4.215335][ T1] TOMOYO: 2.6.0 [ 4.216285][ T1] Mandatory Access Control activated. [ 4.221590][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.223938][ T1] pnp: PnP ACPI init [ 4.245377][ T1] pnp: PnP ACPI: found 7 devices [ 4.286563][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.290190][ T1] NET: Registered PF_INET protocol family [ 4.293224][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 4.306588][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 4.309850][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 4.312208][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 4.321286][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 4.329301][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.333529][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.337921][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 4.341563][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.345938][ T1] RPC: Registered named UNIX socket transport module. [ 4.348052][ T1] RPC: Registered udp transport module. [ 4.349504][ T1] RPC: Registered tcp transport module. [ 4.351462][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.356550][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.359075][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.361265][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.363593][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.366629][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.368634][ T1] PCI: CLS 0 bytes, default 64 [ 4.376288][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.378082][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 4.395062][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.396824][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6c0aca63, max_idle_ns: 440795268831 ns [ 4.398693][ T1] clocksource: Switched to clocksource tsc [ 4.403869][ T42] kworker/u4:2 (42) used greatest stack depth: 27960 bytes left [ 4.428977][ T52] kworker/u4:1 (52) used greatest stack depth: 27584 bytes left [ 4.594408][ T1] Initialise system trusted keyrings [ 4.596779][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 4.643800][ T1] NFS: Registering the id_resolver key type [ 4.645451][ T1] Key type id_resolver registered [ 4.646330][ T1] Key type id_legacy registered [ 4.647963][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.659819][ T1] Key type asymmetric registered [ 4.660816][ T1] Asymmetric key parser 'x509' registered [ 4.662100][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 4.664368][ T1] io scheduler mq-deadline registered [ 4.665356][ T1] io scheduler kyber registered [ 4.679893][ T1] usbcore: registered new interface driver udlfb [ 4.681764][ T1] usbcore: registered new interface driver smscufx [ 4.684599][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 4.687709][ T1] ACPI: button: Power Button [PWRF] [ 4.689744][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 4.691781][ T1] ACPI: button: Sleep Button [SLPF] [ 4.714197][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.715341][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.733380][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.734434][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.752512][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.753540][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.767079][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.774775][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 4.777300][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 4.781275][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 4.784984][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 4.788685][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 4.801067][ T1] Non-volatile memory driver v1.3 [ 4.815909][ T1] Linux agpgart interface v0.103 [ 4.818779][ T1] ACPI: bus type drm_connector registered [ 4.825000][ T1] usbcore: registered new interface driver udl [ 4.854997][ T1] loop: module loaded [ 4.856226][ T1] usbcore: registered new interface driver rtsx_usb [ 4.857833][ T1] usbcore: registered new interface driver viperboard [ 4.859321][ T1] usbcore: registered new interface driver dln2 [ 4.860878][ T1] usbcore: registered new interface driver pn533_usb [ 4.862746][ T1] usbcore: registered new interface driver port100 [ 4.864436][ T1] usbcore: registered new interface driver nfcmrvl [ 4.883975][ T1] scsi host0: Virtio SCSI HBA [ 4.928593][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.060492][ T28] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.062356][ T28] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.063384][ T28] sd 0:0:1:0: [sda] Write Protect is off [ 5.064591][ T28] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 5.075442][ T28] sda: sda1 [ 5.077657][ T28] sd 0:0:1:0: [sda] Attached SCSI disk [ 5.080293][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 5.089175][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 5.091345][ T1] db_root: cannot open: /etc/target [ 5.117515][ T249] kworker/u4:1 (249) used greatest stack depth: 27336 bytes left [ 5.136431][ T250] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 5.139049][ T250] CPU: 1 PID: 250 Comm: kworker/u4:3 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 5.141015][ T250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 5.143207][ T250] Call Trace: [ 5.144074][ T250] [ 5.144734][ T250] dump_stack_lvl+0xcd/0x134 [ 5.145158][ T250] panic+0x2c8/0x627 [ 5.145158][ T250] ? panic_print_sys_info.part.0+0x10b/0x10b [ 5.145158][ T250] __schedule+0x26dd/0x26f0 [ 5.145158][ T250] ? kthread+0x222/0x3a0 [ 5.145158][ T250] ? io_schedule_timeout+0x140/0x140 [ 5.145158][ T250] schedule+0xda/0x1b0 [ 5.145158][ T250] ? process_one_work+0x1610/0x1610 [ 5.145158][ T250] schedule_preempt_disabled+0xf/0x20 [ 5.145158][ T250] kthread+0x227/0x3a0 [ 5.145158][ T250] ? kthread_complete_and_exit+0x40/0x40 [ 5.145158][ T250] ret_from_fork+0x1f/0x30 [ 5.145158][ T250] [ 5.145158][ T250] Kernel Offset: disabled [ 5.145158][ T250] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/syzkaller/jobs/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2431760567=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 4ea67ff89 nothing to commit, working tree clean export BUILDOS=linux export NATIVEBUILDOS=linux export HOSTOS=linux export HOSTARCH=amd64 export TARGETOS=linux export TARGETARCH=amd64 export TARGETVMARCH=amd64 export CC=gcc export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static export NCORES=32 export EXE= export NATIVEBUILDOS=linux GOOS=linux GOARCH=amd64 go install ./syz-fuzzer make fuzzer execprog stress executor make[1]: Entering directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller' export BUILDOS=linux export NATIVEBUILDOS=linux export HOSTOS=linux export HOSTARCH=amd64 export TARGETOS=linux export TARGETARCH=amd64 export TARGETVMARCH=amd64 export CC=gcc export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static export NCORES=32 export EXE= export NATIVEBUILDOS=linux make[1]: warning: -j32 forced in makefile: resetting jobserver mode. GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=4ea67ff893eedeac16a8406659783dcfa6bf8186 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Tue Aug 20 17:08:41 2019 -0700'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=4ea67ff893eedeac16a8406659783dcfa6bf8186 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Tue Aug 20 17:08:41 2019 -0700'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=4ea67ff893eedeac16a8406659783dcfa6bf8186 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Tue Aug 20 17:08:41 2019 -0700'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"4ea67ff893eedeac16a8406659783dcfa6bf8186\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'