static void decode_rgb_frame(FFV1Context *s, uint8_t *src[3], int w, int h, int stride[3])
{
    int x, y, p;
    int16_t *sample[4][2];
    int lbd    = s->avctx->bits_per_raw_sample <= 8;
    int bits   = s->avctx->bits_per_raw_sample > 0 ? s->avctx->bits_per_raw_sample : 8;
    int offset = 1 << bits;

    for (x = 0; x < 4; x++) {
        sample[x][0] = s->sample_buffer +  x * 2      * (w + 6) + 3;
        sample[x][1] = s->sample_buffer + (x * 2 + 1) * (w + 6) + 3;
    }

    s->run_index = 0;

    memset(s->sample_buffer, 0, 8 * (w + 6) * sizeof(*s->sample_buffer));

    for (y = 0; y < h; y++) {
        for (p = 0; p < 3 + s->transparency; p++) {
            int16_t *temp = sample[p][0]; // FIXME: try a normal buffer

            sample[p][0] = sample[p][1];
            sample[p][1] = temp;

            sample[p][1][-1]= sample[p][0][0  ];
            sample[p][0][ w]= sample[p][0][w-1];
            if (lbd)
                decode_line(s, w, sample[p], (p + 1)/2, 9);
            else
                decode_line(s, w, sample[p], (p + 1)/2, bits + 1);
        }
        for (x = 0; x < w; x++) {
            int g = sample[0][1][x];
            int b = sample[1][1][x];
            int r = sample[2][1][x];
            int a = sample[3][1][x];

            b -= offset;
            r -= offset;
            g -= (b + r) >> 2;
            b += g;
            r += g;

            if (lbd)
                *((uint32_t*)(src[0] + x*4 + stride[0]*y)) = b + (g<<8) + (r<<16) + (a<<24);
            else {
                *((uint16_t*)(src[0] + x*2 + stride[0]*y)) = b;
                *((uint16_t*)(src[1] + x*2 + stride[1]*y)) = g;
                *((uint16_t*)(src[2] + x*2 + stride[2]*y)) = r;
            }
        }
    }
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.