DepSurf

Function: kernel_is_locked_down

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Absent ⚠️
• In 4.13: ✅

  bool kernel_is_locked_down();
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In security/lock_down.c (ffffffff813fcb60)
  Location: security/lock_down.c:36
  Inline: False
  Direct callers:
    - arch/x86/kernel/ioport.c:SyS_iopl
    - arch/x86/kernel/ioport.c:sys_ioperm
    - kernel/power/hibernate.c:disk_store
    - kernel/power/hibernate.c:software_resume
    - kernel/power/hibernate.c:hibernate
    - kernel/power/user.c:snapshot_open
    - kernel/module.c:load_module
    - kernel/kexec.c:compat_SyS_kexec_load
    - kernel/trace/bpf_trace.c:bpf_trace_printk
    - kernel/trace/bpf_trace.c:bpf_probe_write_user
    - kernel/trace/bpf_trace.c:bpf_probe_read
    - drivers/pci/pci-sysfs.c:pci_write_resource_io
    - drivers/pci/pci-sysfs.c:pci_write_config
    - drivers/pci/proc.c:proc_bus_pci_mmap
    - drivers/pci/proc.c:proc_bus_pci_ioctl
    - drivers/pci/proc.c:proc_bus_pci_write
    - drivers/acpi/tables.c:acpi_table_upgrade
    - drivers/acpi/osl.c:acpi_os_get_root_pointer
    - drivers/tty/serial/serial_core.c:uart_ioctl
    - drivers/char/mem.c:open_port
    - drivers/char/mem.c:write_mem
  

  Symbols:

  ffffffff813fcb60-ffffffff813fcb72: kernel_is_locked_down (STB_GLOBAL)
  

• In 4.15: Absent ⚠️
• In 4.18: Absent ⚠️
• In 5.0: Absent ⚠️
• In 5.3: Absent ⚠️
• In 5.4: Absent ⚠️
• In 5.8: Absent ⚠️
• In 5.11: Absent ⚠️
• In 5.13: Absent ⚠️
• In 5.15: Absent ⚠️
• In 5.19: Absent ⚠️
• In 6.2: Absent ⚠️
• In 6.5: Absent ⚠️
• In 6.8: Absent ⚠️

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: Absent ⚠️
• In azure: Absent ⚠️
• In gcp: Absent ⚠️
• In lowlatency: Absent ⚠️

Differences

Regular