general protection fault in driver_register software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6e835671, max_idle_ns: 440795274684 ns clocksource: Switched to clocksource tsc Initialise system trusted keyrings workingset: timestamp_bits=40 max_order=21 bucket_order=0 NFS: Registering the id_resolver key type Key type id_resolver registered Key type id_legacy registered 9p: Installing v9fs 9p2000 file system support Key type asymmetric registered Asymmetric key parser 'x509' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) io scheduler mq-deadline registered io scheduler kyber registered usbcore: registered new interface driver udlfb usbcore: registered new interface driver smscufx input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: button: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] ACPI: \_SB_.LNKC: Enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKD: Enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKB: Enabled at IRQ 10 virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 Linux agpgart interface v0.103 ACPI: bus type drm_connector registered usbcore: registered new interface driver udl loop: module loaded usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl scsi host0: Virtio SCSI HBA scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 sd 0:0:1:0: Attached scsi generic sg0 type 0 Rounding down aligned max_sectors from 4294967295 to 4294967288 db_root: cannot open: /etc/target CAN device driver interface general protection fault, probably for non-canonical address 0xffff000000000800: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xfff8200000004000-0xfff8200000004007] CPU: 1 PID: 1 Comm: swapper/0 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:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:kmem_cache_alloc_trace+0x15e/0x3b0 mm/slub.c:3282 Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 9d 01 00 00 48 85 c0 0f 84 94 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 a0 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc9000001fcc8 EFLAGS: 00010246 RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 RDX: 0000000000004579 RSI: 0000000000000dc0 RDI: 000000000003b470 RBP: ffff888100042140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000dc0 R13: 0000000000000a20 R14: 0000000000000dc0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] kobject_uevent_env+0x230/0x1640 lib/kobject_uevent.c:524 driver_register+0x2db/0x3a0 drivers/base/driver.c:248 usb_register_driver+0x249/0x460 drivers/usb/core/driver.c:1062 do_one_initcall+0xfe/0x650 init/main.c:1296 do_initcall_level init/main.c:1369 [inline] do_initcalls init/main.c:1385 [inline] do_basic_setup init/main.c:1404 [inline] kernel_init_freeable+0x6ac/0x735 init/main.c:1611 kernel_init+0x1a/0x1d0 init/main.c:1500 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:kmem_cache_alloc_trace+0x15e/0x3b0 mm/slub.c:3282 Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 9d 01 00 00 48 85 c0 0f 84 94 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 a0 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc9000001fcc8 EFLAGS: 00010246 RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 RDX: 0000000000004579 RSI: 0000000000000dc0 RDI: 000000000003b470 RBP: ffff888100042140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000dc0 R13: 0000000000000a20 R14: 0000000000000dc0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 51 08 mov 0x8(%rcx),%edx 3: 48 8b 01 mov (%rcx),%rax 6: 48 83 79 10 00 cmpq $0x0,0x10(%rcx) b: 48 89 44 24 08 mov %rax,0x8(%rsp) 10: 0f 84 9d 01 00 00 je 0x1b3 16: 48 85 c0 test %rax,%rax 19: 0f 84 94 01 00 00 je 0x1b3 1f: 48 8b 7d 00 mov 0x0(%rbp),%rdi 23: 8b 4d 28 mov 0x28(%rbp),%ecx 26: 40 f6 c7 0f test $0xf,%dil * 2a: 48 8b 1c 08 mov (%rax,%rcx,1),%rbx <-- trapping instruction 2e: 0f 85 a0 01 00 00 jne 0x1d4 34: 48 8d 4a 08 lea 0x8(%rdx),%rcx 38: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) 3d: 0f 94 c0 sete %al 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@10.128.1.31" "pwd"]: exit status 255 ssh: connect to host 10.128.1.31 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. serialport: Connected to syzkaller.us-central1-c.ci2-upstream-usb-test-job-test-job-0 port 1 (session ID: 08054ef02cd07aae46024307f83095add5365c1f3d28d63e81f7527b9ac43f45, active connections: 1). 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 63d5cf19-b3b9-41af-dcca-34a1e7350b57 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 registers' [ 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 [ 0.000007][ T0] kvm-clock: using sched offset of 2587424627 cycles [ 0.001064][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004715][ T0] tsc: Detected 2200.192 MHz processor [ 0.009828][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.011619][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.013112][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.019845][ T0] found SMP MP-table at [mem 0x000f2750-0x000f275f] [ 0.021306][ T0] Using GB pages for direct mapping [ 0.025043][ T0] ACPI: Early table checksum verification disabled [ 0.026559][ T0] ACPI: RSDP 0x00000000000F24D0 000014 (v00 Google) [ 0.027871][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.029601][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.031047][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.033043][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.034079][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.034916][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.036255][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.037670][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.039394][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.040836][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.042089][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.043596][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.044837][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.046075][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.047487][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.048637][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.050224][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.051907][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.052650][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.053610][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.054711][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.055681][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.056706][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.058602][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.061005][ T0] NODE_DATA(0) allocated [mem 0x23fffa000-0x23fffdfff] [ 0.101028][ T0] Zone ranges: [ 0.101861][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.102860][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.104429][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.106359][ T0] Movable zone start for each node [ 0.107766][ T0] Early memory node ranges [ 0.109233][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.111074][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.113259][ T0] node 0: [mem 0x0000000100000000-0x000000023fffffff] [ 0.115174][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000023fffffff] [ 0.116635][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.116785][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.178886][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.496302][ T0] kasan: KernelAddressSanitizer initialized [ 0.498912][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.500144][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.501764][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.503385][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.504462][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.505666][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.508145][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.509856][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.511432][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.512809][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.514655][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.516289][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.517964][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.519528][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.520811][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.522372][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.524072][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.525643][ T0] Booting paravirtualized kernel on KVM [ 0.526479][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.569360][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1 [ 0.571923][ T0] percpu: Embedded 67 pages/cpu s233568 r8192 d32672 u1048576 [ 0.573512][ T0] kvm-guest: PV spinlocks enabled [ 0.574366][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.575513][ T0] Fallback order for Node 0: 0 [ 0.576316][ T0] Built 1 zonelists, mobility grouping on. Total pages: 2064125 [ 0.577378][ T0] Policy zone: Normal [ 0.577926][ 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 [ 0.595491][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.600257][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.602834][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear) [ 0.604431][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 0.608004][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear) [ 0.609935][ T0] software IO TLB: area num 2. [ 1.498247][ T0] Memory: 6921704K/8388204K available (83983K kernel code, 22480K rwdata, 19020K rodata, 2220K init, 32260K bss, 1466244K reserved, 0K cma-reserved) [ 1.501998][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 1.510214][ T0] Dynamic Preempt: voluntary [ 1.511784][ T0] Running RCU self tests [ 1.512555][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.514630][ T0] rcu: RCU lockdep checking is enabled. [ 1.516606][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.519145][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.520494][ T0] rcu: RCU debug extended QS entry/exit. [ 1.522239][ T0] All grace periods are expedited (rcu_expedited). [ 1.523879][ T0] Trampoline variant of Tasks RCU enabled. [ 1.524896][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.526333][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.547166][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.548793][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.549969][ T0] random: crng init done [ 1.552205][ T0] Console: colour VGA+ 80x25 [ 1.553316][ T0] printk: console [ttyS0] enabled [ 1.553316][ T0] printk: console [ttyS0] enabled [ 1.555039][ T0] printk: bootconsole [earlyser0] disabled [ 1.555039][ T0] printk: bootconsole [earlyser0] disabled [ 1.556867][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.558308][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.559236][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.560113][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.561273][ T0] ... CLASSHASH_SIZE: 4096 [ 1.562202][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.563167][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.564269][ T0] ... CHAINHASH_SIZE: 131072 [ 1.565014][ T0] memory used by lock dependency info: 20657 kB [ 1.565965][ T0] memory used for stack traces: 8320 kB [ 1.567241][ T0] per task-struct memory footprint: 1920 bytes [ 1.568848][ T0] ACPI: Core revision 20220331 [ 1.570721][ T0] APIC: Switch to symmetric I/O mode setup [ 1.577447][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.578796][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6e835671, max_idle_ns: 440795274684 ns [ 1.580638][ T0] Calibrating delay loop (skipped) preset value.. 4400.38 BogoMIPS (lpj=22001920) [ 1.582029][ T0] pid_max: default: 32768 minimum: 301 [ 1.583045][ T0] LSM: Security Framework initializing [ 1.584155][ T0] landlock: Up and running. [ 1.584945][ T0] Yama: becoming mindful. [ 1.585814][ T0] TOMOYO Linux initialized [ 1.586645][ T0] AppArmor: AppArmor initialized [ 1.588269][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.589842][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear) [ 1.593702][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.594982][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.595956][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.597544][ T0] Spectre V2 : Mitigation: IBRS [ 1.598262][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.599893][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.600642][ T0] RETBleed: Mitigation: IBRS [ 1.601372][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.602869][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.604686][ T0] MDS: Mitigation: Clear CPU buffers [ 1.605733][ T0] TAA: Mitigation: Clear CPU buffers [ 1.606707][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.611357][ T0] Freeing SMP alternatives memory: 60K [ 1.733062][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 1.736265][ T1] cblist_init_generic: Setting adjustable number of callback queues. [ 1.737707][ T1] cblist_init_generic: Setting shift to 1 and lim to 1. [ 1.739574][ T1] Running RCU-tasks wait API self tests [ 1.840751][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 1.843072][ T1] rcu: Hierarchical SRCU implementation. [ 1.843930][ T1] rcu: Max phase no-delay instances is 1000. [ 1.847671][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.849435][ T1] smp: Bringing up secondary CPUs ... [ 1.851751][ T1] x86: Booting SMP configuration: [ 1.852850][ T1] .... node #0, CPUs: #1 [ 1.854976][ 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. [ 1.854976][ 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. [ 1.860668][ 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. [ 1.864264][ T1] smp: Brought up 1 node, 2 CPUs [ 1.865199][ T1] smpboot: Max logical packages: 1 [ 1.866068][ T1] smpboot: Total of 2 processors activated (8800.76 BogoMIPS) [ 1.907993][ T1] allocated 134217728 bytes of page_ext [ 1.909088][ T1] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.913645][ T1] Node 0, zone DMA32: page owner found early allocated 15 pages [ 1.939040][ T1] Node 0, zone Normal: page owner found early allocated 33979 pages [ 1.941702][ T1] devtmpfs: initialized [ 1.950887][ T11] Callback from call_rcu_tasks() invoked. [ 1.960645][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.960645][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, linear) [ 1.963136][ T1] PM: RTC time: 22:35:33, date: 2022-09-04 [ 1.965736][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 1.972486][ T1] audit: initializing netlink subsys (disabled) [ 1.973921][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.973921][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.980700][ T25] audit: type=2000 audit(1662330933.036:1): state=initialized audit_enabled=0 res=1 [ 1.984132][ T1] cpuidle: using governor menu [ 1.985188][ T1] PCI: Using configuration type 1 for base access [ 2.132147][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.133665][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.146078][ T1] ACPI: Added _OSI(Module Device) [ 2.147088][ T1] ACPI: Added _OSI(Processor Device) [ 2.148010][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 2.148911][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.150118][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 2.150654][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 2.151686][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 2.251386][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.283606][ T1] ACPI: Interpreter enabled [ 2.285508][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.286540][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.288076][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.289692][ T1] PCI: Using E820 reservations for host bridge windows [ 2.294443][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 2.431266][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 2.432645][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 2.434178][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 2.436602][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 2.452585][ T1] PCI host bridge to bus 0000:00 [ 2.453608][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 2.454921][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 2.456403][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 2.457913][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 2.459383][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 2.461425][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 2.468172][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 2.494919][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 2.519181][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 2.524580][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 2.535166][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 2.542260][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 2.565791][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 2.577139][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 2.584877][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 2.607189][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 2.620766][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 2.651178][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 2.656298][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 2.668210][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 2.676410][ T1] pci 0000:00:06.0: reg 0x14: [mem 0xfe802000-0xfe80207f] [ 2.702787][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 2.711878][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 2.718316][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe803000-0xfe80303f] [ 2.762202][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 2.768949][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 2.776487][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 2.783418][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 2.787705][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 2.802568][ T1] iommu: Default domain type: Translated [ 2.803640][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 2.807754][ T1] SCSI subsystem initialized [ 2.810988][ T1] ACPI: bus type USB registered [ 2.812479][ T1] usbcore: registered new interface driver usbfs [ 2.814150][ T1] usbcore: registered new interface driver hub [ 2.815387][ T1] usbcore: registered new device driver usb [ 2.817988][ T1] mc: Linux media interface: v0.10 [ 2.818988][ T1] videodev: Linux video capture interface: v2.00 [ 2.820853][ T1] pps_core: LinuxPPS API ver. 1 registered [ 2.822018][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 2.823757][ T1] PTP clock support registered [ 2.825428][ T1] EDAC MC: Ver: 3.0.0 [ 2.829540][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 2.834982][ T1] Bluetooth: Core ver 2.22 [ 2.836724][ T1] NET: Registered PF_BLUETOOTH protocol family [ 2.837773][ T1] Bluetooth: HCI device and connection manager initialized [ 2.839012][ T1] Bluetooth: HCI socket layer initialized [ 2.840271][ T1] Bluetooth: L2CAP socket layer initialized [ 2.840770][ T1] NET: Registered PF_ATMPVC protocol family [ 2.842139][ T1] NET: Registered PF_ATMSVC protocol family [ 2.843433][ T1] NetLabel: Initializing [ 2.844338][ T1] NetLabel: domain hash size = 128 [ 2.845610][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 2.847637][ T1] NetLabel: unlabeled traffic allowed by default [ 2.851647][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 2.852856][ T1] NET: Registered PF_NFC protocol family [ 2.854267][ T1] PCI: Using ACPI for IRQ routing [ 2.856426][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 2.857598][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 2.858952][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 2.860627][ T1] vgaarb: loaded [ 5.060456][ T1] clocksource: Switched to clocksource kvm-clock [ 5.060610][ T1] VFS: Disk quotas dquot_6.6.0 [ 5.060610][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 5.060610][ T1] TOMOYO: 2.6.0 [ 5.060808][ T1] Mandatory Access Control activated. [ 5.065075][ T1] AppArmor: AppArmor Filesystem Enabled [ 5.066716][ T1] pnp: PnP ACPI init [ 5.086185][ T1] pnp: PnP ACPI: found 7 devices [ 5.138292][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.140954][ T1] NET: Registered PF_INET protocol family [ 5.143151][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear) [ 5.156191][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, linear) [ 5.158425][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 5.160497][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear) [ 5.168488][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 5.175513][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 5.178260][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 5.181847][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, linear) [ 5.184725][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 5.188218][ T1] RPC: Registered named UNIX socket transport module. [ 5.189473][ T1] RPC: Registered udp transport module. [ 5.190399][ T1] RPC: Registered tcp transport module. [ 5.191433][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 5.196598][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 5.197867][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 5.199175][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 5.200592][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 5.203103][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.204913][ T1] PCI: CLS 0 bytes, default 64 [ 5.205950][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.207133][ T1] software IO TLB: mapped [mem 0x00000000bbffd000-0x00000000bfffd000] (64MB) [ 5.220961][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.222539][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6e835671, max_idle_ns: 440795274684 ns [ 5.224332][ T1] clocksource: Switched to clocksource tsc [ 5.229542][ T42] kworker/u4:0 (42) used greatest stack depth: 27960 bytes left [ 5.256232][ T56] kworker/u4:2 (56) used greatest stack depth: 27856 bytes left [ 5.480569][ T1] Initialise system trusted keyrings [ 5.482834][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 5.530040][ T1] NFS: Registering the id_resolver key type [ 5.531767][ T1] Key type id_resolver registered [ 5.532623][ T1] Key type id_legacy registered [ 5.534207][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.546133][ T1] Key type asymmetric registered [ 5.547053][ T1] Asymmetric key parser 'x509' registered [ 5.548602][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246) [ 5.550934][ T1] io scheduler mq-deadline registered [ 5.551738][ T1] io scheduler kyber registered [ 5.563279][ T75] kworker/u4:2 (75) used greatest stack depth: 27584 bytes left [ 5.566383][ T1] usbcore: registered new interface driver udlfb [ 5.568078][ T1] usbcore: registered new interface driver smscufx [ 5.571732][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 5.575859][ T1] ACPI: button: Power Button [PWRF] [ 5.577996][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 5.580374][ T1] ACPI: button: Sleep Button [SLPF] [ 5.601369][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.602342][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.618892][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.620138][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.642812][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.643893][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.657597][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 5.667917][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.670541][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.674929][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.678534][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.682309][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.693841][ T1] Non-volatile memory driver v1.3 [ 5.706841][ T1] Linux agpgart interface v0.103 [ 5.712300][ T1] ACPI: bus type drm_connector registered [ 5.718955][ T1] usbcore: registered new interface driver udl [ 5.751949][ T1] loop: module loaded [ 5.754306][ T1] usbcore: registered new interface driver rtsx_usb [ 5.756361][ T1] usbcore: registered new interface driver viperboard [ 5.759035][ T1] usbcore: registered new interface driver dln2 [ 5.761770][ T1] usbcore: registered new interface driver pn533_usb [ 5.763981][ T1] usbcore: registered new interface driver port100 [ 5.765985][ T1] usbcore: registered new interface driver nfcmrvl [ 5.788918][ T1] scsi host0: Virtio SCSI HBA [ 5.832578][ T1] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 5.965131][ T28] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 5.967020][ T28] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 5.968835][ T28] sd 0:0:1:0: [sda] Write Protect is off [ 5.970534][ T28] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.015546][ T28] sda: sda1 [ 6.017930][ T28] sd 0:0:1:0: [sda] Attached SCSI disk [ 6.022125][ T1] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 6.031057][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 6.033498][ T1] db_root: cannot open: /etc/target [ 6.106361][ T1] CAN device driver interface [ 6.108408][ T1] general protection fault, probably for non-canonical address 0xffff000000000800: 0000 [#1] PREEMPT SMP KASAN [ 6.111065][ T1] KASAN: maybe wild-memory-access in range [0xfff8200000004000-0xfff8200000004007] [ 6.113157][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 6.114773][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 6.115242][ T1] RIP: 0010:kmem_cache_alloc_trace+0x15e/0x3b0 [ 6.115242][ T1] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 9d 01 00 00 48 85 c0 0f 84 94 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 a0 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 6.115242][ T1] RSP: 0000:ffffc9000001fcc8 EFLAGS: 00010246 [ 6.115242][ T1] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 6.115242][ T1] RDX: 0000000000004579 RSI: 0000000000000dc0 RDI: 000000000003b470 [ 6.115242][ T1] RBP: ffff888100042140 R08: 0000000000000000 R09: 0000000000000000 [ 6.115242][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000dc0 [ 6.115242][ T1] R13: 0000000000000a20 R14: 0000000000000dc0 R15: 0000000000000000 [ 6.115242][ T1] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 6.115242][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.115242][ T1] CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 [ 6.115242][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.115242][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.115242][ T1] Call Trace: [ 6.115242][ T1] [ 6.115242][ T1] ? kobject_uevent_env+0x230/0x1640 [ 6.115242][ T1] kobject_uevent_env+0x230/0x1640 [ 6.115242][ T1] ? bus_add_driver+0x267/0x640 [ 6.115242][ T1] driver_register+0x2db/0x3a0 [ 6.115242][ T1] ? __raw_spin_lock_init+0x36/0x110 [ 6.115242][ T1] usb_register_driver+0x249/0x460 [ 6.115242][ T1] ? can_dev_init+0x39/0x39 [ 6.115242][ T1] do_one_initcall+0xfe/0x650 [ 6.115242][ T1] ? trace_event_raw_event_initcall_level+0x1f0/0x1f0 [ 6.115242][ T1] ? parameq+0x110/0x170 [ 6.115242][ T1] kernel_init_freeable+0x6ac/0x735 [ 6.115242][ T1] ? rest_init+0x270/0x270 [ 6.115242][ T1] kernel_init+0x1a/0x1d0 [ 6.115242][ T1] ? rest_init+0x270/0x270 [ 6.115242][ T1] ret_from_fork+0x1f/0x30 [ 6.115242][ T1] [ 6.115242][ T1] Modules linked in: [ 6.115238][ T260] BUG: unable to handle page fault for address: ffffdc0000000000 [ 6.157585][ T1] ---[ end trace 0000000000000000 ]--- [ 6.115238][ T260] #PF: supervisor read access in kernel mode [ 6.159722][ T1] RIP: 0010:kmem_cache_alloc_trace+0x15e/0x3b0 [ 6.115238][ T260] #PF: error_code(0x0000) - not-present page [ 6.115238][ T260] PGD 100026067 P4D 100026067 [ 6.161782][ T1] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 9d 01 00 00 48 85 c0 0f 84 94 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 a0 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 6.115238][ T260] PUD 0 [ 6.163418][ T1] RSP: 0000:ffffc9000001fcc8 EFLAGS: 00010246 [ 6.115238][ T260] Oops: 0000 [#2] PREEMPT SMP KASAN [ 6.168278][ T1] [ 6.168283][ T1] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 6.115238][ T260] CPU: 0 PID: 260 Comm: kworker/u4:2 Tainted: G D 6.0.0-rc1-syzkaller-00049-g4e55e22d3d9a #0 [ 6.171728][ T1] RDX: 0000000000004579 RSI: 0000000000000dc0 RDI: 000000000003b470 [ 6.115238][ T260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 6.174172][ T1] RBP: ffff888100042140 R08: 0000000000000000 R09: 0000000000000000 [ 6.115238][ T260] RIP: 0010:strnlen+0x3b/0x70 [ 6.178721][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000dc0 [ 6.115238][ T260] Code: 74 3c 48 bb 00 00 00 00 00 fc ff df 49 89 fc 48 89 f8 eb 09 48 83 c0 01 48 39 e8 74 1e 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <0f> b6 14 1a 38 ca 7f 04 84 d2 75 11 80 38 00 75 d9 4c 29 e0 48 83 [ 6.115238][ T260] RSP: 0000:ffffc9000187fe08 EFLAGS: 00010246 [ 6.182529][ T1] R13: 0000000000000a20 R14: 0000000000000dc0 R15: 0000000000000000 [ 6.115238][ T260] [ 6.115238][ T260] RAX: ffff000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 6.185433][ T1] FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 [ 6.115238][ T260] RDX: 1fffe00000000000 RSI: 0000000000020000 RDI: ffff000000000000 [ 6.192004][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.115238][ T260] RBP: ffff000000020000 R08: 0000000000000005 R09: 0000000000000000 [ 6.194400][ T1] CR2: 0000000000000000 CR3: 0000000007825000 CR4: 00000000003506e0 [ 6.115238][ T260] R10: 0000000000000006 R11: 0000000000000001 R12: ffff000000000000 [ 6.198759][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.115238][ T260] R13: ffff000000000000 R14: dffffc0000000000 R15: 1ffff11021ce9000 [ 6.115238][ T260] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 6.202054][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.115238][ T260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.205101][ T1] Kernel panic - not syncing: Fatal exception [ 6.115238][ T260] CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 6.115238][ T260] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.115238][ T260] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.115238][ T260] Call Trace: [ 6.115238][ T260] [ 6.115238][ T260] copy_string_kernel+0x27/0x460 [ 6.115238][ T260] ? memcpy+0x39/0x60 [ 6.115238][ T260] copy_strings_kernel+0xb3/0x190 [ 6.115238][ T260] kernel_execve+0x377/0x500 [ 6.115238][ T260] call_usermodehelper_exec_async+0x2e3/0x580 [ 6.115238][ T260] ? trace_hardirqs_on+0x2d/0x120 [ 6.115238][ T260] ? umh_complete+0x90/0x90 [ 6.115238][ T260] ret_from_fork+0x1f/0x30 [ 6.115238][ T260] [ 6.115238][ T260] Modules linked in: [ 6.115238][ T260] CR2: ffffdc0000000000 [ 6.115238][ T260] ---[ end trace 0000000000000000 ]--- [ 6.115238][ T260] RIP: 0010:kmem_cache_alloc_trace+0x15e/0x3b0 [ 6.115238][ T260] Code: 8b 51 08 48 8b 01 48 83 79 10 00 48 89 44 24 08 0f 84 9d 01 00 00 48 85 c0 0f 84 94 01 00 00 48 8b 7d 00 8b 4d 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 a0 01 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 [ 6.115238][ T260] RSP: 0000:ffffc9000001fcc8 EFLAGS: 00010246 [ 6.115238][ T260] RAX: ffff000000000000 RBX: 0000000000000000 RCX: 0000000000000800 [ 6.115238][ T260] RDX: 0000000000004579 RSI: 0000000000000dc0 RDI: 000000000003b470 [ 6.115238][ T260] RBP: ffff888100042140 R08: 0000000000000000 R09: 0000000000000000 [ 6.115238][ T260] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000dc0 [ 6.115238][ T260] R13: 0000000000000a20 R14: 0000000000000dc0 R15: 0000000000000000 [ 6.115238][ T260] FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 [ 6.115238][ T260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.115238][ T260] CR2: ffffdc0000000000 CR3: 0000000007825000 CR4: 00000000003506f0 [ 6.115238][ T260] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.115238][ T260] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.210714][ T1] Shutting down cpus with NMI [ 6.210714][ T1] Kernel Offset: disabled [ 6.210714][ T1] 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="/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod" 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-build2896611486=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 97183ed76 nothing to commit, working tree clean go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=97183ed760478c5b970c8c549d99c8147a72e293 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20201214-125411'" "-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/prog.GitRevision=97183ed760478c5b970c8c549d99c8147a72e293 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20201214-125411'" "-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/prog.GitRevision=97183ed760478c5b970c8c549d99c8147a72e293 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20201214-125411'" "-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 \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -static -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"97183ed760478c5b970c8c549d99c8147a72e293\"