FKIE_CVE-2026-98964

Vulnerability from fkie_nvd - Published: 2026-10-23 13:17 - Updated: 2026-10-24 14:16
Summary
In the Linux kernel, the following vulnerability has been resolved: nvmet: use the local P2P device on metadata allocation failure nvmet_req_alloc_p2pmem_sgls() assigns req->p2p_dev only after the data and metadata SGL allocations succeed. If the data allocation succeeds but the metadata allocation fails, out_free_sg passes req->p2p_dev to pci_p2pmem_free_sgl() before that assignment has taken place. Pass the local p2p_dev argument instead, so cleanup uses the same PCI device as the successful data allocation.
Impacted products
Vendor Product Version

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3c231142c4f4bb96836469eb276026ec55940093",
              "status": "affected",
              "version": "bcd9a0797d73eeff659582f23277e7ab6e5f18f3",
              "versionType": "git"
            },
            {
              "lessThan": "32f21607911a1f69c8f0f93a6c28fe6f8490aa98",
              "status": "affected",
              "version": "bcd9a0797d73eeff659582f23277e7ab6e5f18f3",
              "versionType": "git"
            },
            {
              "lessThan": "ce79a6c5cc1b8054ec8d3eba16adda4a36113438",
              "status": "affected",
              "version": "bcd9a0797d73eeff659582f23277e7ab6e5f18f3",
              "versionType": "git"
            },
            {
              "lessThan": "73bf0f9579633b531098a475e6e55c9316763aed",
              "status": "affected",
              "version": "bcd9a0797d73eeff659582f23277e7ab6e5f18f3",
              "versionType": "git"
            },
            {
              "lessThan": "4aa9c0f377a4de5e8fddce76b34ee4529639a1ff",
              "status": "affected",
              "version": "bcd9a0797d73eeff659582f23277e7ab6e5f18f3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c440cd080761b18a52cac20f2a42e5da1e3995af",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8a452d62e7cea3c8a2676a3b89a9118755a1a271",
              "versionType": "git"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.43",
              "versionType": "semver"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.10",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: use the local P2P device on metadata allocation failure\n\nnvmet_req_alloc_p2pmem_sgls() assigns req-\u003ep2p_dev only after the data\nand metadata SGL allocations succeed. If the data allocation succeeds\nbut the metadata allocation fails, out_free_sg passes req-\u003ep2p_dev to\npci_p2pmem_free_sgl() before that assignment has taken place.\n\nPass the local p2p_dev argument instead, so cleanup uses the same PCI\ndevice as the successful data allocation."
    }
  ],
  "id": "CVE-2026-98964",
  "lastModified": "2026-10-24T14:16:49.490",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-23T13:17:17.830",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/32f21607911a1f69c8f0f93a6c28fe6f8490aa98"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3c231142c4f4bb96836469eb276026ec55940093"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4aa9c0f377a4de5e8fddce76b34ee4529639a1ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/73bf0f9579633b531098a475e6e55c9316763aed"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ce79a6c5cc1b8054ec8d3eba16adda4a36113438"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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