mudler/LocalAI · error

Failed to allocate memory for resized mask\n

Error message

Failed to allocate memory for resized mask\n

What it means

Allocation for the resized mask buffer failed. Guard: validate mask dimensions are within sane bounds before allocating; on allocation failure abort the request with an out-of-memory error instead of dereferencing null.

Source

Thrown at backend/go/stablediffusion-ggml/cpp/gosd.cpp:901

        fprintf(stderr, "Loading mask image: %s\n", mask_image);

        int c = 0;
        int mask_width = 0;
        int mask_height = 0;
        mask_image_buffer = stbi_load(mask_image, &mask_width, &mask_height, &c, 1);
        if (mask_image_buffer == NULL) {
            fprintf(stderr, "Failed to load mask image from '%s'\n", mask_image);
            if (input_image_buffer) free(input_image_buffer);
            return 1;
        }

        // Resize mask if dimensions don't match
        if (mask_width != width || mask_height != height) {
            fprintf(stderr, "Resizing mask image from %dx%d to %dx%d\n", mask_width, mask_height, width, height);

            uint8_t* resized_mask_buffer = (uint8_t*)malloc(height * width);
            if (resized_mask_buffer == NULL) {
                fprintf(stderr, "Failed to allocate memory for resized mask\n");
                free(mask_image_buffer);
                if (input_image_buffer) free(input_image_buffer);
                return 1;
            }

            stbir_resize(mask_image_buffer, mask_width, mask_height, 0,
                         resized_mask_buffer, width, height, 0, STBIR_TYPE_UINT8,
                         1, STBIR_ALPHA_CHANNEL_NONE, 0,
                         STBIR_EDGE_CLAMP, STBIR_EDGE_CLAMP,
                         STBIR_FILTER_BOX, STBIR_FILTER_BOX,
                         STBIR_COLORSPACE_SRGB, nullptr);

            free(mask_image_buffer);
            mask_image_buffer = resized_mask_buffer;
        }

        p->mask_image = {(uint32_t)width, (uint32_t)height, 1, mask_image_buffer};
        fprintf(stderr, "Using inpainting with mask\n");

View on GitHub (pinned to 44413a9d06)

Solutions

1. Free system memory or reduce mask image dimensions so the resize allocation fits.
2. Check for memory pressure from other processes on the host.

When it happens

Trigger: Thrown at backend/go/stablediffusion-ggml/cpp/gosd.cpp:901 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mudler/LocalAI@44413a9d06 (2026-08-15). Data as JSON: /api/errors/ba9729cc339b02b8. Report an issue: GitHub.