CVE-2024-26708 (GCVE-0-2024-26708)

Vulnerability from cvelistv5 – Published: 2024-04-03 14:55 – Updated: 2026-05-11 20:02
VLAI
Title
mptcp: really cope with fastopen race
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: really cope with fastopen race Fastopen and PM-trigger subflow shutdown can race, as reported by syzkaller. In my first attempt to close such race, I missed the fact that the subflow status can change again before the subflow_state_change callback is invoked. Address the issue additionally copying with all the states directly reachable from TCP_FIN_WAIT1.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-03 18:54 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6665 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1e777f39b4d75e599a3aac8e0f67d739474f198c , < 4bfe217e075d04e63c092df9d40c608e598c2ef2 (git)
Affected: 1e777f39b4d75e599a3aac8e0f67d739474f198c , < e158fb9679d15a2317ec13b4f6301bd26265df2f (git)
Affected: 1e777f39b4d75e599a3aac8e0f67d739474f198c , < 337cebbd850f94147cee05252778f8f78b8c337f (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.18 , ≤ 6.6.* (semver)
Unaffected: 6.7.6 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                {
                  "lessThan": "6.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.18",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.7.*",
                  "status": "unaffected",
                  "version": "6.7.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.8",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.18",
                      "versionStartIncluding": "6.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.7.6",
                      "versionStartIncluding": "6.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8",
                      "versionStartIncluding": "6.2",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: really cope with fastopen race\n\nFastopen and PM-trigger subflow shutdown can race, as reported by\nsyzkaller.\n\nIn my first attempt to close such race, I missed the fact that\nthe subflow status can change again before the subflow_state_change\ncallback is invoked.\n\nAddress the issue additionally copying with all the states directly\nreachable from TCP_FIN_WAIT1."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:02:38.658Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2"
            },
            {
              "url": "https://git.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2f"
            },
            {
              "url": "https://git.kernel.org/stable/c/337cebbd850f94147cee05252778f8f78b8c337f"
            }
          ],
          "title": "mptcp: really cope with fastopen race",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26708",
        "datePublished": "2024-04-03T14:55:11.054Z",
        "dateReserved": "2024-02-19T14:20:24.158Z",
        "dateUpdated": "2026-05-11T20:02:38.658Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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