DepSurf

Function: __kernel_is_locked_down

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Absent ⚠️
• In 4.13: Absent ⚠️
• In 4.15: ✅

  bool __kernel_is_locked_down(const char *what, bool first);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In security/lock_down.c (ffffffff81425080)
  Location: security/lock_down.c:60
  Inline: False
  Direct callers:
    - arch/x86/kernel/ioport.c:SyS_iopl
    - arch/x86/kernel/ioport.c:sys_ioperm
    - kernel/power/hibernate.c:hibernation_available
    - kernel/power/user.c:snapshot_open
    - kernel/module.c:load_module
    - kernel/kexec.c:compat_SyS_kexec_load
    - fs/debugfs/file.c:full_proxy_open
    - fs/debugfs/file.c:open_proxy_open
    - 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
  

  Symbols:

  ffffffff81425080-ffffffff814250b8: __kernel_is_locked_down (STB_GLOBAL)
  

• In 4.18: Transformation ⚠️

  bool __kernel_is_locked_down(const char *what, bool first);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In security/lock_down.c (0)
  Location: security/lock_down.c:69
  Inline: False
  Direct callers:
    - arch/x86/kernel/ioport.c:__ia32_sys_iopl
    - arch/x86/kernel/ioport.c:__x64_sys_iopl
    - arch/x86/kernel/ioport.c:ksys_ioperm
    - kernel/power/hibernate.c:hibernation_available
    - kernel/power/user.c:snapshot_open
    - kernel/module.c:load_module
    - kernel/kexec.c:__x32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_sys_kexec_load
    - kernel/kexec.c:__x64_sys_kexec_load
    - kernel/bpf/syscall.c:__ia32_sys_bpf
    - kernel/bpf/syscall.c:__x64_sys_bpf
    - kernel/events/core.c:__do_sys_perf_event_open
    - fs/debugfs/inode.c:debugfs_setattr
    - 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
  

  Symbols:

  ffffffff81457ec8-ffffffff81457ef3: __kernel_is_locked_down.cold.0 (STB_LOCAL)
  ffffffff81457e80-ffffffff81457ea5: __kernel_is_locked_down (STB_GLOBAL)
  

• In 5.0: Transformation ⚠️

  bool __kernel_is_locked_down(const char *what, bool first);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In security/lock_down.c (0)
  Location: security/lock_down.c:69
  Inline: False
  Direct callers:
    - arch/x86/kernel/ioport.c:__ia32_sys_iopl
    - arch/x86/kernel/ioport.c:__x64_sys_iopl
    - arch/x86/kernel/ioport.c:ksys_ioperm
    - kernel/power/hibernate.c:hibernation_available
    - kernel/power/user.c:snapshot_open
    - kernel/module.c:load_module
    - kernel/kexec.c:__x32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_sys_kexec_load
    - kernel/kexec.c:__x64_sys_kexec_load
    - kernel/bpf/syscall.c:__do_sys_bpf
    - kernel/events/core.c:__do_sys_perf_event_open
    - fs/debugfs/inode.c:debugfs_setattr
    - 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_set_info_user
    - drivers/char/mem.c:open_port
  

  Symbols:

  ffffffff814753b8-ffffffff814753e3: __kernel_is_locked_down.cold.0 (STB_LOCAL)
  ffffffff81475370-ffffffff81475395: __kernel_is_locked_down (STB_GLOBAL)
  

• In 5.3: Transformation ⚠️

  bool __kernel_is_locked_down(const char *what, bool first);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In security/lock_down.c (0)
  Location: security/lock_down.c:71
  Inline: False
  Direct callers:
    - arch/x86/kernel/ioport.c:__ia32_sys_iopl
    - arch/x86/kernel/ioport.c:__x64_sys_iopl
    - arch/x86/kernel/ioport.c:ksys_ioperm
    - kernel/power/hibernate.c:hibernation_available
    - kernel/power/user.c:snapshot_open
    - kernel/module.c:load_module
    - kernel/kexec.c:__x32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_compat_sys_kexec_load
    - kernel/kexec.c:__ia32_sys_kexec_load
    - kernel/kexec.c:__x64_sys_kexec_load
    - kernel/kexec_file.c:kimage_file_alloc_init
    - kernel/kprobes.c:register_kprobe
    - kernel/bpf/syscall.c:__do_sys_bpf
    - kernel/events/core.c:__do_sys_perf_event_open
    - fs/proc/kcore.c:open_kcore
    - fs/debugfs/inode.c:debugfs_setattr
    - 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_set_info
    - drivers/char/mem.c:open_port
  

  Symbols:

  ffffffff814a30c8-ffffffff814a30f3: __kernel_is_locked_down.cold (STB_LOCAL)
  ffffffff814a3080-ffffffff814a30a5: __kernel_is_locked_down (STB_GLOBAL)
  

• 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

• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅