diff options
| author | Linn Crosetto <lcrosetto@gmail.com> | 2019-08-19 17:17:52 -0700 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2019-08-19 21:54:16 -0700 |
| commit | 6ea0e815fc5e18597724169caa6e4d46dd8e693d (patch) | |
| tree | e128c849c6b2a565b79967ee3b1457015993cc2d /arch/x86 | |
| parent | 41fa1ee9c6d687afb05760dd349f361855f1d7f5 (diff) | |
| download | linux-6ea0e815fc5e18597724169caa6e4d46dd8e693d.tar.gz | |
acpi: Disable ACPI table override if the kernel is locked down
>From the kernel documentation (initrd_table_override.txt): If the ACPI_INITRD_TABLE_OVERRIDE compile option is true, it is possible to override nearly any ACPI table provided by the BIOS with an instrumented, modified one. When lockdown is enabled, the kernel should disallow any unauthenticated changes to kernel space. ACPI tables contain code invoked by the kernel, so do not allow ACPI tables to be overridden if the kernel is locked down. Signed-off-by: Linn Crosetto <lcrosetto@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Matthew Garrett <mjg59@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> cc: linux-acpi@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'arch/x86')
0 files changed, 0 insertions, 0 deletions