From: Kang Chen <void0red@xxxxxxxxx> ACPI_ALLOCATE_ZEROED may fails, object_info might be null and will cause null pointer dereference later. Link: https://github.com/acpica/acpica/commit/84b3752cfa0ce4b0ebecae5e193c937b8ed6e278 Signed-off-by: Kang Chen <void0red@xxxxxxxxx> --- v2 -> v1: add a github link drivers/acpi/acpica/dbnames.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c index 3615e1a6e..b91155ea9 100644 --- a/drivers/acpi/acpica/dbnames.c +++ b/drivers/acpi/acpica/dbnames.c @@ -652,6 +652,9 @@ acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg) object_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_object_info)); + if (!object_info) + return (AE_NO_MEMORY); + /* Walk the namespace from the root */ (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, -- 2.34.1
