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acpi: Ignore acpi_rsdp kernel parameter when securelevel is set
authorMatthew Garrett <matthew.garrett@nebula.com>
Mon, 9 Sep 2013 22:49:41 +0000 (15:49 -0700)
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>
Mon, 10 Aug 2015 16:24:06 +0000 (09:24 -0700)
commitad0eb71d4366e8375d91ab39c40c30e04eba9171
tree06a862f3c2eae1f28ae784ca65098cec32b040betree
parent3c7af10dc5281fbef68a2febb4af5e7ff88fd816commit | diff
acpi: Ignore acpi_rsdp kernel parameter when securelevel is set

Orabug: 21539498

From: Josh Boyer <jwboyer@redhat.com>

This option allows userspace to pass the RSDP address to the kernel, which
makes it possible for a user to execute arbitrary code in the kernel.
Disable this when securelevel is set.

Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
drivers/acpi/osl.c diff | blob | history
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