ResamplePolyphaseFixed_32f crashes

I've been experimenting with using the polyphase resampler in IPP for resampling low sample rates without an integer resampling factor. (As an example, upsampling 400Hz to 480Hz).

I've created a simple test program which upsamples random data, similar to the example code in the documentation for ResamplePolyphaseFixed - however, the executable crashes with a segmentation fault somewhere inside the call to ResamplePolyphaseFixed.

The code, minus some debug output, is as follows:

int inputLength=400;
int outputLength=480;
int idealFilterLength=60;

float* input = new float[inputLength];
float* output = new float[outputLength];

for (int i = 0; i < inputLength; i++)
{
 input[i] = (float)random / (float)RAND_MAX;
}

int pSize, pLen, pHeight;

ippsResamplePolyphaseFixedGetSize_32f(inputLength, outputLength, idealFilterLength, &pSize, &pLen, &pHeight, ippAlgHintFast)

IppsResamplingPolyphaseFixed_32f* spec;
spec = (IppsResamplingPolyphaseFixed_32f*)ippsMalloc_8u(pSize);

double pTime;
int outL;

ippsResamplePolyphaseFixed_32f(input, inputLength, output, 0.98f, &pTime, &outL, spec);

The program completes in gdb and valgrind, though valgrind reports a number of invalid reads inside ResamplePolyphaseFixed.

Any suggestions as to where I'm going wrong with this would be greatly appreciated.