ACPICA: Added additional parameter validation for LoadTable
Implemented additional parameter validation for the LoadTable operator. The length of the input strings SignatureString, OemIdString, and OemTableId are now checked for maximum lengths. http://www.acpica.org/bugzilla/show_bug.cgi?id=582 Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -138,6 +138,14 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
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ACPI_FUNCTION_TRACE(ex_load_table_op);
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/* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */
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if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
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(operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
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(operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
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return_ACPI_STATUS(AE_BAD_PARAMETER);
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}
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/* Find the ACPI table in the RSDT/XSDT */
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status = acpi_tb_find_table(operand[0]->string.pointer,
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