s390/dasd: fix error checks in dasd_copy_pair_store()

{
  "id": "a38477345a1e80547b9ec55610fe4088e20c26e7065d25cc389aab68f17c6704",
  "url": "https://osv.dev/vulnerability/CVE-2024-42320",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "s390/dasd: fix error checks in dasd_copy_pair_store()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix error checks in dasd_copy_pair_store() dasd_add_busid() can return an error via ERR_PTR() if an allocation fails. However, two callsites in dasd_copy_pair_store() do not check the result, potentially resulting in a NULL pointer dereference. Fix this by checking the result with IS_ERR() and returning the error up the stack.",
    "evidence": "osv:CVE-2024-42320",
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    "severity": "unknown",
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      "modified": "2026-10-28T02:30:48.772469937Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/68d4c3722290ad300c295fb3435e835d200d5cb2",
        "https://git.kernel.org/stable/c/8e64d2356cbc800b4cd0e3e614797f76bcf0cdb8",
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        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42320.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-42320",
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    },
    "related_cves": [
      {
        "value": "CVE-2024-42320",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 516842,
  "published_at": "2024-08-17T09:09:32.695+00:00"
}