general protection fault in io_serial_out general protection fault, maybe for address 0xffff88810ea39c80: 0000 [#1] PREEMPT SMP KASAN general protection fault, maybe for address 0x0: 0000 [#2] PREEMPT SMP KASAN CPU: 0 PID: 355 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 RIP: 0010:io_serial_out+0x91/0xa0 drivers/tty/serial/8250/8250_port.c:467 Code: e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 18 66 03 5d 40 44 89 e8 89 da ee 5b 5d 41 5c 41 5d e8 29 3d 1f ff eb a4 e8 52 3d 1f ff eb e1 41 54 55 48 89 fd 53 RSP: 0000:ffffc9000194f6e0 EFLAGS: 00010006 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000000003f9 RSI: ffffffff825aacd1 RDI: ffffffff8babd060 RBP: ffff00008b905b20 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 206c6172656e6567 R12: 0000000000000000 R13: ffff000000000000 R14: ffffffff8babd2b0 R15: ffffffff8babd070 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 7: fc ff df a: 48 89 fa mov %rdi,%rdx d: d3 e3 shl %cl,%ebx f: 48 c1 ea 03 shr $0x3,%rdx 13: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 17: 75 18 jne 0x31 19: 66 03 5d 40 add 0x40(%rbp),%bx 1d: 44 89 e8 mov %r13d,%eax 20: 89 da mov %ebx,%edx 22: ee out %al,(%dx) 23: 5b pop %rbx 24: 5d pop %rbp 25: 41 5c pop %r12 27: 41 5d pop %r13 * 29: c3 retq <-- trapping instruction 2a: e8 29 3d 1f ff callq 0xff1f3d58 2f: eb a4 jmp 0xffffffd5 31: e8 52 3d 1f ff callq 0xff1f3d88 36: eb e1 jmp 0x19 38: 41 54 push %r12 3a: 55 push %rbp 3b: 48 89 fd mov %rdi,%rbp 3e: 53 push %rbx 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@10.128.0.171" "pwd"]: exit status 255 ssh: connect to host 10.128.0.171 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: 8d5582588238d3580a8f9a0a4ae2344b7de2600d1363d59eeddaefffa1cd0a8a, 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 [ 0.000019][ T0] kvm-clock: using sched offset of 2568882487 cycles [ 0.001768][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.006987][ T0] tsc: Detected 2200.154 MHz processor [ 0.012924][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.014885][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.017135][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.024588][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.026870][ T0] Using GB pages for direct mapping [ 0.029937][ T0] ACPI: Early table checksum verification disabled [ 0.031701][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.033720][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.036629][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.039253][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.041958][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.043809][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.045353][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.048293][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.050999][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.054335][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.058215][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.060709][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.062775][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.064781][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.067076][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.069251][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.072398][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.074369][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.077065][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.078454][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.079750][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.081601][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.083336][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.085255][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.088478][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.092552][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.132897][ T0] Zone ranges: [ 0.133827][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.135826][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.137931][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.139951][ T0] Movable zone start for each node [ 0.141287][ T0] Early memory node ranges [ 0.142844][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.145283][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.147231][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.149001][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.150894][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.151022][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.213120][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.530718][ T0] kasan: KernelAddressSanitizer initialized [ 0.533597][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.534798][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.536305][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.537785][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.539721][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.541064][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.542467][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.543928][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.545177][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.546381][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.548079][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.549452][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.550887][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.552025][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.553151][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.554273][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.555462][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.556442][ T0] Booting paravirtualized kernel on KVM [ 0.557257][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.598124][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.600266][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.601742][ T0] kvm-guest: PV spinlocks enabled [ 0.602750][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.604087][ T0] Fallback order for Node 0: 0 [ 0.604762][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.605828][ T0] Policy zone: Normal [ 0.606366][ 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 [ 0.626035][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.630879][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.634098][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.635988][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.640224][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.641875][ T0] software IO TLB: area num 2. [ 1.495518][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.502029][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.510702][ T0] Dynamic Preempt: voluntary [ 1.512933][ T0] Running RCU self tests [ 1.514052][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.516314][ T0] rcu: RCU lockdep checking is enabled. [ 1.517509][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.519764][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.520906][ T0] rcu: RCU debug extended QS entry/exit. [ 1.522195][ T0] All grace periods are expedited (rcu_expedited). [ 1.524037][ T0] Trampoline variant of Tasks RCU enabled. [ 1.525797][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.528189][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.548803][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.550793][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.552461][ T0] random: crng init done [ 1.554589][ T0] Console: colour VGA+ 80x25 [ 1.555823][ T0] printk: console [ttyS0] enabled [ 1.555823][ T0] printk: console [ttyS0] enabled [ 1.557816][ T0] printk: bootconsole [earlyser0] disabled [ 1.557816][ T0] printk: bootconsole [earlyser0] disabled [ 1.562143][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.565160][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.566511][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.568389][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.570294][ T0] ... CLASSHASH_SIZE: 4096 [ 1.571192][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.572353][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.573788][ T0] ... CHAINHASH_SIZE: 131072 [ 1.575532][ T0] memory used by lock dependency info: 20657 kB [ 1.577384][ T0] memory used for stack traces: 8320 kB [ 1.579113][ T0] per task-struct memory footprint: 1920 bytes [ 1.581392][ T0] ACPI: Core revision 20220331 [ 1.583391][ T0] APIC: Switch to symmetric I/O mode setup [ 1.590089][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.592130][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6c45b8f7, max_idle_ns: 440795205637 ns [ 1.595294][ T0] Calibrating delay loop (skipped) preset value.. 4400.30 BogoMIPS (lpj=22001540) [ 1.597812][ T0] pid_max: default: 32768 minimum: 301 [ 1.599766][ T0] LSM: Security Framework initializing [ 1.601437][ T0] landlock: Up and running. [ 1.602625][ T0] Yama: becoming mindful. [ 1.605414][ T0] TOMOYO Linux initialized [ 1.606917][ T0] AppArmor: AppArmor initialized [ 1.609337][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.611928][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.618151][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.620052][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.621887][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.624654][ T0] Spectre V2 : Mitigation: IBRS [ 1.625297][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.627622][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.629748][ T0] RETBleed: Mitigation: IBRS [ 1.631113][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.635322][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.638562][ T0] MDS: Mitigation: Clear CPU buffers [ 1.640093][ T0] TAA: Mitigation: Clear CPU buffers [ 1.641473][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.646033][ T0] Freeing SMP alternatives memory: 60K [ 1.768362][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.773468][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.775266][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.775586][ T1] Running RCU-tasks wait API self tests [ 1.885446][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.889348][ T1] rcu: Hierarchical SRCU implementation. [ 1.891420][ T1] rcu: Max phase no-delay instances is 1000. [ 1.896853][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.899420][ T1] smp: Bringing up secondary CPUs ... [ 1.901551][ T1] x86: Booting SMP configuration: [ 1.902895][ T1] .... node #0, CPUs: #1 [ 1.905799][ 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. [ 1.909074][ 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. [ 1.913534][ 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. [ 1.915595][ T1] smp: Brought up 1 node, 2 CPUs [ 1.917226][ T1] smpboot: Max logical packages: 1 [ 1.918721][ T1] smpboot: Total of 2 processors activated (8800.61 BogoMIPS) [ 1.995630][ T11] Callback from call_rcu_tasks() invoked. [ 1.998681][ T1] allocated 134217728 bytes of page_ext [ 2.000950][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 2.007300][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 2.034715][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 2.036781][ T1] devtmpfs: initialized [ 2.059475][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.063080][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 2.068086][ T1] PM: RTC time: 02:35:35, date: 2022-09-05 [ 2.071105][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.079276][ T1] audit: initializing netlink subsys (disabled) [ 2.081312][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.081312][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.085580][ T24] audit: type=2000 audit(1662345335.755:1): state=initialized audit_enabled=0 res=1 [ 2.089025][ T1] cpuidle: using governor menu [ 2.096925][ T1] PCI: Using configuration type 1 for base access [ 2.247952][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.250155][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.267065][ T1] ACPI: Added _OSI(Module Device) [ 2.268752][ T1] ACPI: Added _OSI(Processor Device) [ 2.270468][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.272229][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.274255][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.275372][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.277455][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.387354][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.424790][ T1] ACPI: Interpreter enabled [ 2.425883][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.427682][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.429933][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.433156][ T1] PCI: Using E820 reservations for host bridge windows [ 2.439763][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.589605][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.592381][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.595159][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 2.595984][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 2.618684][ T1] PCI host bridge to bus 0000:00 [ 2.620229][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.622737][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.624208][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.625299][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.628567][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.631295][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.639442][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.667279][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.690752][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.698862][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.709571][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.718131][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 2.746386][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.760081][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.769198][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 2.801382][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 2.820782][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 2.857969][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.866116][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 2.879442][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 2.890159][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 2.918660][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 2.930459][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 2.939199][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 2.986349][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 2.994679][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.000970][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.010605][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.016504][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.033440][ T1] iommu: Default domain type: Translated [ 3.035182][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.038510][ T1] SCSI subsystem initialized [ 3.042341][ T1] ACPI: bus type USB registered [ 3.046027][ T1] usbcore: registered new interface driver usbfs [ 3.048288][ T1] usbcore: registered new interface driver hub [ 3.050454][ T1] usbcore: registered new device driver usb [ 3.055728][ T1] mc: Linux media interface: v0.10 [ 3.057765][ T1] videodev: Linux video capture interface: v2.00 [ 3.060941][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.062626][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.065414][ T1] PTP clock support registered [ 3.068248][ T1] EDAC MC: Ver: 3.0.0 [ 3.073355][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.080378][ T1] Bluetooth: Core ver 2.22 [ 3.082273][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.085288][ T1] Bluetooth: HCI device and connection manager initialized [ 3.088341][ T1] Bluetooth: HCI socket layer initialized [ 3.090543][ T1] Bluetooth: L2CAP socket layer initialized [ 3.092795][ T1] NET: Registered PF_ATMPVC protocol family [ 3.095281][ T1] NET: Registered PF_ATMSVC protocol family [ 3.098280][ T1] NetLabel: Initializing [ 3.099770][ T1] NetLabel: domain hash size = 128 [ 3.101343][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.104156][ T1] NetLabel: unlabeled traffic allowed by default [ 3.107343][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.109303][ T1] NET: Registered PF_NFC protocol family [ 3.110933][ T1] PCI: Using ACPI for IRQ routing [ 3.115816][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.117824][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.119727][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.122034][ T1] vgaarb: loaded [ 5.224820][ T1] clocksource: Switched to clocksource kvm-clock [ 5.225242][ T1] VFS: Disk quotas dquot_6.6.0 [ 5.225242][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 5.225242][ T1] TOMOYO: 2.6.0 [ 5.226086][ T1] Mandatory Access Control activated. [ 5.230979][ T1] AppArmor: AppArmor Filesystem Enabled [ 5.233300][ T1] pnp: PnP ACPI init [ 5.253360][ T1] pnp: PnP ACPI: found 7 devices [ 5.293040][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.300446][ T1] NET: Registered PF_INET protocol family [ 5.303146][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 5.317117][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 5.320714][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 5.322983][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 5.332176][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 5.340668][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 5.344069][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 5.348395][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 5.352017][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 5.356255][ T1] RPC: Registered named UNIX socket transport module. [ 5.358534][ T1] RPC: Registered udp transport module. [ 5.360762][ T1] RPC: Registered tcp transport module. [ 5.362595][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 5.367624][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 5.369962][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 5.372110][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 5.373985][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 5.377524][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.379706][ T1] PCI: CLS 0 bytes, default 64 [ 5.387906][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.389696][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 5.405513][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.408188][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6c45b8f7, max_idle_ns: 440795205637 ns [ 5.411547][ T1] clocksource: Switched to clocksource tsc [ 5.417558][ T42] kworker/u4:0 (42) used greatest stack depth: 27856 bytes left [ 5.441297][ T56] kworker/u4:1 (56) used greatest stack depth: 27584 bytes left [ 5.445541][ T47] kworker/u4:0 (47) used greatest stack depth: 27104 bytes left [ 5.651678][ T1] Initialise system trusted keyrings [ 5.653955][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 5.702408][ T1] NFS: Registering the id_resolver key type [ 5.704225][ T1] Key type id_resolver registered [ 5.706126][ T1] Key type id_legacy registered [ 5.708302][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.720795][ T1] Key type asymmetric registered [ 5.722619][ T1] Asymmetric key parser 'x509' registered [ 5.724986][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 5.727786][ T1] io scheduler mq-deadline registered [ 5.729705][ T1] io scheduler kyber registered [ 5.746279][ T1] usbcore: registered new interface driver udlfb [ 5.748678][ T1] usbcore: registered new interface driver smscufx [ 5.752207][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 5.756356][ T1] ACPI: button: Power Button [PWRF] [ 5.759332][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 5.763091][ T1] ACPI: button: Sleep Button [SLPF] [ 5.783921][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.787272][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.803870][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.806647][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.825237][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.826910][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.840410][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 5.849372][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.851793][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.856465][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.861374][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.866159][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.878295][ T1] Non-volatile memory driver v1.3 [ 5.892223][ T1] Linux agpgart interface v0.103 [ 5.896406][ T1] ACPI: bus type drm_connector registered [ 5.902295][ T1] usbcore: registered new interface driver udl [ 5.934017][ T1] loop: module loaded [ 5.935212][ T1] usbcore: registered new interface driver rtsx_usb [ 5.937018][ T1] usbcore: registered new interface driver viperboard [ 5.938519][ T1] usbcore: registered new interface driver dln2 [ 5.940184][ T1] usbcore: registered new interface driver pn533_usb [ 5.941838][ T1] usbcore: registered new interface driver port100 [ 5.943168][ T1] usbcore: registered new interface driver nfcmrvl [ 5.959835][ T1] scsi host0: Virtio SCSI HBA [ 6.003648][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 6.136517][ T37] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 6.137908][ T37] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 6.139058][ T37] sd 0:0:1:0: [sda] Write Protect is off [ 6.140126][ T37] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.174821][ T37] sda: sda1 [ 6.176623][ T37] sd 0:0:1:0: [sda] Attached SCSI disk [ 6.179744][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 6.187636][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 6.189692][ T1] db_root: cannot open: /etc/target [ 6.251938][ T243] kworker/u4:2 (243) used greatest stack depth: 4096 bytes left [ 6.255645][ T1] CAN device driver interface [ 6.257073][ T1] usbcore: registered new interface driver usb_8dev [ 6.259955][ T1] usbcore: registered new interface driver ems_usb [ 6.262080][ T1] usbcore: registered new interface driver gs_usb [ 6.263294][ T1] usbcore: registered new interface driver kvaser_usb [ 6.264527][ T1] usbcore: registered new interface driver mcba_usb [ 6.266038][ T1] usbcore: registered new interface driver peak_usb [ 6.267378][ T1] e100: Intel(R) PRO/100 Network Driver [ 6.268320][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 6.269378][ T1] e1000: Intel(R) PRO/1000 Network Driver [ 6.270365][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 6.271569][ T1] e1000e: Intel(R) PRO/1000 Network Driver [ 6.272454][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 6.273532][ T1] sky2: driver version 1.30 [ 6.275429][ T1] usbcore: registered new interface driver ath9k_htc [ 6.276962][ T1] usbcore: registered new interface driver carl9170 [ 6.278739][ T1] usbcore: registered new interface driver ath6kl_usb [ 6.280294][ T1] usbcore: registered new interface driver ar5523 [ 6.281865][ T1] usbcore: registered new interface driver ath10k_usb [ 6.282861][ T1] Atmel at76x USB Wireless LAN Driver 0.17 loading [ 6.284704][ T1] usbcore: registered new interface driver at76c50x-usb [ 6.287247][ T1] usbcore: registered new interface driver brcmfmac [ 6.288737][ T1] usbcore: registered new interface driver orinoco_usb [ 6.291801][ T1] usbcore: registered new interface driver p54usb [ 6.293195][ T1] usbcore: registered new interface driver usb8xxx [ 6.295047][ T1] usbcore: registered new interface driver lbtf_usb [ 6.296841][ T1] usbcore: registered new interface driver mwifiex_usb [ 6.298191][ T1] usbcore: registered new interface driver mt7601u [ 6.299554][ T1] usbcore: registered new interface driver rt2500usb [ 6.300829][ T1] usbcore: registered new interface driver rt73usb [ 6.302130][ T1] usbcore: registered new interface driver rt2800usb [ 6.303252][ T1] usbcore: registered new interface driver rtl8187 [ 6.304704][ T1] usbcore: registered new interface driver rtl8192cu [ 6.312185][ T1] usbcore: registered new interface driver rtl8xxxu [ 6.313879][ T1] usbcore: registered new interface driver RSI-USB WLAN [ 6.315914][ T1] usbcore: registered new interface driver zd1211rw [ 6.317531][ T1] usbcore: registered new interface driver zd1201 [ 6.318805][ T1] usbcore: registered new interface driver rndis_wlan [ 6.320110][ T1] usbcore: registered new interface driver atusb [ 6.321735][ T1] usbcore: registered new interface driver catc [ 6.323332][ T1] usbcore: registered new interface driver kaweth [ 6.324372][ T1] pegasus: Pegasus/Pegasus II USB Ethernet driver [ 6.326131][ T1] usbcore: registered new interface driver pegasus [ 6.327360][ T1] usbcore: registered new interface driver rtl8150 [ 6.328646][ T1] usbcore: registered new interface driver r8152 [ 6.329691][ T1] hso: drivers/net/usb/hso.c: Option Wireless [ 6.330855][ T1] usbcore: registered new interface driver hso [ 6.332672][ T1] usbcore: registered new interface driver lan78xx [ 6.333969][ T1] usbcore: registered new interface driver asix [ 6.337096][ T1] usbcore: registered new interface driver ax88179_178a [ 6.338385][ T1] usbcore: registered new interface driver cdc_ether [ 6.339658][ T1] usbcore: registered new interface driver cdc_eem [ 6.340873][ T1] usbcore: registered new interface driver dm9601 [ 6.342042][ T1] usbcore: registered new interface driver sr9700 [ 6.343191][ T1] usbcore: registered new interface driver CoreChips [ 6.344609][ T1] usbcore: registered new interface driver smsc75xx [ 6.346243][ T1] usbcore: registered new interface driver smsc95xx [ 6.347488][ T1] usbcore: registered new interface driver gl620a [ 6.348615][ T1] usbcore: registered new interface driver net1080 [ 6.349813][ T1] usbcore: registered new interface driver plusb [ 6.351011][ T1] usbcore: registered new interface driver rndis_host [ 6.352599][ T1] usbcore: registered new interface driver cdc_subset [ 6.353814][ T1] usbcore: registered new interface driver zaurus [ 6.354936][ T1] usbcore: registered new interface driver MOSCHIP usb-ethernet driver [ 6.356488][ T1] usbcore: registered new interface driver int51x1 [ 6.357678][ T1] usbcore: registered new interface driver cdc_phonet [ 6.359030][ T1] usbcore: registered new interface driver kalmia [ 6.360265][ T1] usbcore: registered new interface driver ipheth [ 6.361670][ T1] usbcore: registered new interface driver sierra_net [ 6.362923][ T1] usbcore: registered new interface driver cx82310_eth [ 6.364365][ T1] usbcore: registered new interface driver cdc_ncm [ 6.365719][ T1] usbcore: registered new interface driver huawei_cdc_ncm [ 6.367654][ T1] usbcore: registered new interface driver lg-vl600 [ 6.368905][ T1] usbcore: registered new interface driver qmi_wwan [ 6.370155][ T1] usbcore: registered new interface driver cdc_mbim [ 6.371433][ T1] usbcore: registered new interface driver ch9200 [ 6.373548][ T1] usbcore: registered new interface driver r8153_ecm [ 6.379957][ T355] general protection fault, maybe for address 0xffff88810ea39c80: 0000 [#1] PREEMPT SMP KASAN [ 6.380022][ T355] general protection fault, maybe for address 0x0: 0000 [#2] PREEMPT SMP KASAN [ 6.380046][ T355] CPU: 0 PID: 355 Comm: kworker/u4:3 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 6.380065][ T355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 6.380074][ T355] RIP: 0010:io_serial_out+0x91/0xa0 [ 6.380097][ T355] Code: e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 18 66 03 5d 40 44 89 e8 89 da ee 5b 5d 41 5c 41 5d e8 29 3d 1f ff eb a4 e8 52 3d 1f ff eb e1 41 54 55 48 89 fd 53 [ 6.380114][ T355] RSP: 0000:ffffc9000194f6e0 EFLAGS: 00010006 [ 6.380128][ T355] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 6.380144][ T355] RDX: 00000000000003f9 RSI: ffffffff825aacd1 RDI: ffffffff8babd060 [ 6.380154][ T355] RBP: ffff00008b905b20 R08: 0000000000000001 R09: 000000000000001f [ 6.380165][ T355] R10: 0000000000000000 R11: 206c6172656e6567 R12: 0000000000000000 [ 6.380177][ T355] R13: ffff000000000000 R14: ffffffff8babd2b0 R15: ffffffff8babd070 [ 6.380190][ T355] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 6.380207][ T355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 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-build48697122=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 06150bf1b nothing to commit, working tree clean 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' 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=06150bf1b39b70e521560bc943ac19b281903ebc -X 'github.com/google/syzkaller/sys.gitRevisionDate=Thu Feb 6 13:50:58 2020 -0800'" "-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=06150bf1b39b70e521560bc943ac19b281903ebc -X 'github.com/google/syzkaller/sys.gitRevisionDate=Thu Feb 6 13:50:58 2020 -0800'" "-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=06150bf1b39b70e521560bc943ac19b281903ebc -X 'github.com/google/syzkaller/sys.gitRevisionDate=Thu Feb 6 13:50:58 2020 -0800'" "-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=\"06150bf1b39b70e521560bc943ac19b281903ebc\" make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'