From: Erik Kaneda erik.kaneda@intel.com
[ Upstream commit 6bfe5344b2956d0bee116f1c640aef05e5cddd76 ]
ACPICA commit 3244c1eeba9f9fb9ccedb875f7923a3d85e0c6aa
The status chekcs are used to to avoid NULL pointer dereference on field objects
Link: https://github.com/acpica/acpica/commit/3244c1ee Reported-by: Kurt Kennett kurt_kennett@hotmail.com Signed-off-by: Erik Kaneda erik.kaneda@intel.com Signed-off-by: Bob Moore robert.moore@intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/acpica/dsfield.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index c901f5aec739..5725baec60f3 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -514,13 +514,20 @@ acpi_ds_create_field(union acpi_parse_object *op, info.region_node = region_node;
status = acpi_ds_get_field_names(&info, walk_state, arg->common.next); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + if (info.region_node->object->region.space_id == - ACPI_ADR_SPACE_PLATFORM_COMM - && !(region_node->object->field.internal_pcc_buffer = - ACPI_ALLOCATE_ZEROED(info.region_node->object->region. - length))) { - return_ACPI_STATUS(AE_NO_MEMORY); + ACPI_ADR_SPACE_PLATFORM_COMM) { + region_node->object->field.internal_pcc_buffer = + ACPI_ALLOCATE_ZEROED(info.region_node->object->region. + length); + if (!region_node->object->field.internal_pcc_buffer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } } + return_ACPI_STATUS(status); }