The patch titled
acpi: check for pxm_to_node_map overflow
has been added to the -mm tree. Its filename is
acpi-check-for-pxm_to_node_map-overflow.patch
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------------------------------------------------------
Subject: acpi: check for pxm_to_node_map overflow
From: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
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@xxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/acpi/numa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/acpi/numa.c~acpi-check-for-pxm_to_node_map-overflow drivers/acpi/numa.c
--- a/drivers/acpi/numa.c~acpi-check-for-pxm_to_node_map-overflow
+++ a/drivers/acpi/numa.c
@@ -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;
_
Patches currently in -mm which might be from gorcunov@xxxxxxxxx are
linux-next.patch
acpi-check-for-pxm_to_node_map-overflow.patch
mm-mminit_validate_memmodel_limits-get-rid-of-redundant-test.patch
oom_kill-dont-call-for-int_sqrt0.patch
introduce-pr_cont-macro.patch
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