cxl/test: Fix __fortify_panic

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  "url": "https://osv.dev/vulnerability/CVE-2026-80639",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "cxl/test: Fix __fortify_panic",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: cxl/test: Fix __fortify_panic Fix a runtime assertion in setup_xor_mapping(). Fortify complains that it is potentially overflowing the xormaps array per __counted_by(nr_maps). Quiet the false positive by initializing @nr_maps earlier. memcpy: detected buffer overflow: 32 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#8: modprobe/2728 Call Trace: __fortify_panic+0xd/0xf setup_xor_mapping+0x6c/0xa0 [cxl_translate] [ dj: Fixed up @nr_entries to @nr_maps in commit log. ]",
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      "modified": "2026-10-28T02:30:45.985295515Z",
      "provider": "osv",
      "references": [
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  "source_id": "core-osv",
  "document_id": 514294,
  "published_at": "2026-08-28T06:48:52.045+00:00"
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