From: Josh Boyer <[email protected]> This option allows userspace to pass the RSDP address to the kernel. This could potentially be used to circumvent the secure boot trust model. We ignore the setting if we don't have the CAP_COMPROMISE_KERNEL capability.
Signed-off-by: Josh Boyer <[email protected]> --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 9eaf708..f94341b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -246,7 +246,7 @@ early_param("acpi_rsdp", setup_acpi_rsdp); acpi_physical_address __init acpi_os_get_root_pointer(void) { #ifdef CONFIG_KEXEC - if (acpi_rsdp) + if (acpi_rsdp && capable(CAP_COMPROMISE_KERNEL)) return acpi_rsdp; #endif -- 1.7.11.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
