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| author | Matthew Garrett <mjg59@srcf.ucam.org> | 2019-08-19 17:17:50 -0700 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2019-08-19 21:54:16 -0700 |
| commit | f474e1486b78ac15322f8a1cda48a32a1deff9d3 (patch) | |
| tree | fe775561f6ce6e2a47ec9b837d398e5ab987efdd /drivers/acpi/osl.c | |
| parent | 95f5e95f41dff31b2a4566c5a8975c08a49ae4e3 (diff) | |
| download | lwn-f474e1486b78ac15322f8a1cda48a32a1deff9d3.tar.gz lwn-f474e1486b78ac15322f8a1cda48a32a1deff9d3.zip | |
ACPI: Limit access to custom_method when the kernel is locked down
custom_method effectively allows arbitrary access to system memory, making
it possible for an attacker to circumvent restrictions on module loading.
Disable it if the kernel is locked down.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: David Howells <dhowells@redhat.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 'drivers/acpi/osl.c')
0 files changed, 0 insertions, 0 deletions