diff options
Diffstat (limited to 'drivers/acpi/executer')
| -rw-r--r-- | drivers/acpi/executer/exconfig.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c index b9543a7f5d2..3370aad3ee1 100644 --- a/drivers/acpi/executer/exconfig.c +++ b/drivers/acpi/executer/exconfig.c @@ -138,6 +138,14 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, ACPI_FUNCTION_TRACE(ex_load_table_op); + /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */ + + if ((operand[0]->string.length > ACPI_NAME_SIZE) || + (operand[1]->string.length > ACPI_OEM_ID_SIZE) || + (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + /* Find the ACPI table in the RSDT/XSDT */ status = acpi_tb_find_table(operand[0]->string.pointer, |