Commit 27ce3419 authored Mar 04, 2009 by Cyrill Gorcunov Committed by Len Brown Mar 16, 2009

acpi: check for pxm_to_node_map overflow



It is hardly (if ever) possible but in case of broken _PXM entry we could
reach out of pxm_to_node_map array bounds in acpi_map_pxm_to_node() call.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

parent 176f9c18

drivers/acpi/numa.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -277,7 +277,7 @@ int acpi_get_node(acpi_handle *handle)
		int pxm, node = -1;

		pxm = acpi_get_pxm(handle);
		if (pxm >= 0)
		if (pxm >= 0 && pxm < MAX_PXM_DOMAINS)
		node = acpi_map_pxm_to_node(pxm);

		return node;