From: Pei Xiao <xiaopei01@xxxxxxxxxx> ACPI_ALLOCATE_ZEROED may fails, elements might be null and will cause null pointer dereference later. Link: https://github.com/acpica/acpica/commit/4d4547cf Signed-off-by: Pei Xiao <xiaopei01@xxxxxxxxxx> --- drivers/acpi/acpica/dbconvert.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c index 2b84ac093698..a60d1098a105 100644 --- a/drivers/acpi/acpica/dbconvert.c +++ b/drivers/acpi/acpica/dbconvert.c @@ -175,6 +175,8 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object) ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS * sizeof(union acpi_object)); + if (!elements) + return (AE_NO_MEMORY); this = string; for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) { this = acpi_db_get_next_token(this, &next, &type); -- 2.34.1 No virus found Checked by Hillstone Network AntiVirus
