int AppLayerProtoDetectPMRegisterPatternCS(uint8_t ipproto, AppProto alproto,
                                           const char *pattern,
                                           uint16_t depth, uint16_t offset,
                                           uint8_t direction)
{
    SCEnter();
    int r = 0;
    r = AppLayerProtoDetectPMRegisterPattern(ipproto, alproto,
                                                     pattern,
                                                     depth, offset,
                                                     direction,
                                                     1 /* case-sensitive */);
    SCReturnInt(r);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.