diff options
Diffstat (limited to 'ACPI-Limit-access-to-custom_method.patch')
| -rw-r--r-- | ACPI-Limit-access-to-custom_method.patch | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/ACPI-Limit-access-to-custom_method.patch b/ACPI-Limit-access-to-custom_method.patch deleted file mode 100644 index 38236753e..000000000 --- a/ACPI-Limit-access-to-custom_method.patch +++ /dev/null @@ -1,31 +0,0 @@ -From 4b85149b764cd024e3dd2aff9eb22a9e1aadd1fa Mon Sep 17 00:00:00 2001 -From: Matthew Garrett <matthew.garrett@nebula.com> -Date: Fri, 9 Mar 2012 08:39:37 -0500 -Subject: [PATCH 04/20] ACPI: Limit access to custom_method - -custom_method effectively allows arbitrary access to system memory, making -it possible for an attacker to circumvent restrictions on module loading. -Disable it if any such restrictions have been enabled. - -Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> ---- - drivers/acpi/custom_method.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c -index c68e72414a67..4277938af700 100644 ---- a/drivers/acpi/custom_method.c -+++ b/drivers/acpi/custom_method.c -@@ -29,6 +29,9 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, - struct acpi_table_header table; - acpi_status status; - -+ if (secure_modules()) -+ return -EPERM; -+ - if (!(*ppos)) { - /* parse the table header to get the table length */ - if (count <= sizeof(struct acpi_table_header)) --- -2.4.3 - |