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(parent: c715717) | patch
ACPI: Limit access to custom_method when the kernel is locked down
authorMatthew Garrett <matthew.garrett@nebula.com>
Wed, 5 Apr 2017 16:40:30 +0000 (17:40 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 22 Dec 2017 14:12:23 +0000 (14:12 +0000)
commit92cd776b04e2f43476bcc033b8468e3cd682639b
treebfc560c259396b0781419ba68fd68c8722d9385etree | snapshot
parentc7157176681f30a12a961c45a0c17c942bb176cacommit | diff
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 <matthew.garrett@nebula.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0053-ACPI-Limit-access-to-custom_method-when-the-kernel-i.patch
drivers/acpi/custom_method.c diff | blob | history
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