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; _ -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
