ghsa-jx25-4v2r-83c2
Vulnerability from github
Published
2025-12-30 15:30
Modified
2025-12-30 15:30
Details

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; ^

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54315"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:20Z",
    "severity": null
  },
  "details": "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           ^",
  "id": "GHSA-jx25-4v2r-83c2",
  "modified": "2025-12-30T15:30:36Z",
  "published": "2025-12-30T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54315"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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