CVE-2026-43440

{
  "id": "CVE-2026-43440",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-08T15:16:56.420",
  "lastModified": "2026-11-06T16:18:40.990",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mana: Null service_wq on setup error to prevent double destroy\n\nIn mana_gd_setup() error path, set gc->service_wq to NULL after\ndestroy_workqueue() to match the cleanup in mana_gd_cleanup().\nThis prevents a use-after-free if the workqueue pointer is checked\nafter a failed setup."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/gdma_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "fa3c2f8d9152344a478abb847081c1b5f84a94f5",
              "lessThan": "59489ce60d7412ed82fb1d8002faa3102dcd4916",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e",
              "lessThan": "6c92392602b451e3869f15ab685f8f650e942b13",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f975a0955276579e2176a134366ed586071c7c6a",
              "lessThan": "87c2302813abc55c46485711a678e3c312b00666",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/gdma_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.18.16",
              "lessThan": "6.18.19",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "6.19.6",
              "lessThan": "6.19.9",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-06T15:38:48.023258Z",
          "id": "CVE-2026-43440",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "configurations": [
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      "nodes": [
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          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13",
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}