CVE-2023-54315 (GCVE-0-2023-54315)
Vulnerability from cvelistv5
Published
2025-12-30 12:23
Modified
2025-12-30 12:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/sriov: perform null check on iov before dereferencing iov Currently pointer iov is being dereferenced before the null check of iov which can lead to null pointer dereference errors. Fix this by moving the iov null check before the dereferencing. Detected using cppcheck static analysis: linux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either the condition '!iov' is redundant or there is possible null pointer dereference: iov. [nullPointerRedundantCheck] num_vfs = iov->num_vfs; ^
References
Impacted products
Vendor Product Version
Linux Linux Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
Version: 052da31d45fc71238ea8bed7e9a84648a1ee0bf3
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/platforms/powernv/pci-sriov.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "0",
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              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
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              "version": "6.4.4",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/powernv/sriov: perform null check on iov before dereferencing iov\n\nCurrently pointer iov is being dereferenced before the null check of iov\nwhich can lead to null pointer dereference errors. Fix this by moving the\niov null check before the dereferencing.\n\nDetected using cppcheck static analysis:\nlinux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either\nthe condition \u0027!iov\u0027 is redundant or there is possible null pointer\ndereference: iov. [nullPointerRedundantCheck]\n num_vfs = iov-\u003enum_vfs;\n           ^"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:23:45.858Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323"
        },
        {
          "url": "https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106"
        },
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          "url": "https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382"
        },
        {
          "url": "https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d"
        }
      ],
      "title": "powerpc/powernv/sriov: perform null check on iov before dereferencing iov",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54315",
    "datePublished": "2025-12-30T12:23:45.858Z",
    "dateReserved": "2025-12-30T12:06:44.531Z",
    "dateUpdated": "2025-12-30T12:23:45.858Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54315\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:20.760\",\"lastModified\":\"2025-12-30T13:16:20.760\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/powernv/sriov: perform null check on iov before dereferencing iov\\n\\nCurrently pointer iov is being dereferenced before the null check of iov\\nwhich can lead to null pointer dereference errors. Fix this by moving the\\niov null check before the dereferencing.\\n\\nDetected using cppcheck static analysis:\\nlinux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either\\nthe condition \u0027!iov\u0027 is redundant or there is possible null pointer\\ndereference: iov. [nullPointerRedundantCheck]\\n num_vfs = iov-\u003enum_vfs;\\n           ^\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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