FKIE_CVE-2023-54031

Vulnerability from fkie_nvd - Published: 2025-12-24 11:15 - Updated: 2025-12-29 15:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa queue index attr to avoid such bugs.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ad9bc25cbdcec72e7ca43dd8281decb69ea9a70
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3003e1b54e057f5f3124e437b80c3bef26ed3fe
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccb533b7070aeeb65c66ea5d590e9c62421dcd61
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: Add queue index attr to vdpa_nl_policy for nlattr length check\n\nThe vdpa_nl_policy structure is used to validate the nlattr when parsing\nthe incoming nlmsg. It will ensure the attribute being described produces\na valid nlattr pointer in info-\u003eattrs before entering into each handler\nin vdpa_nl_ops.\n\nThat is to say, the missing part in vdpa_nl_policy may lead to illegal\nnlattr after parsing, which could lead to OOB read just like CVE-2023-3773.\n\nThis patch adds the missing nla_policy for vdpa queue index attr to avoid\nsuch bugs."
    }
  ],
  "id": "CVE-2023-54031",
  "lastModified": "2025-12-29T15:58:56.260",
  "metrics": {},
  "published": "2025-12-24T11:15:56.100",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8ad9bc25cbdcec72e7ca43dd8281decb69ea9a70"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b3003e1b54e057f5f3124e437b80c3bef26ed3fe"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccb533b7070aeeb65c66ea5d590e9c62421dcd61"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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