CVE-2024-26694 (GCVE-0-2024-26694)

Vulnerability from cvelistv5 – Published: 2024-04-03 14:54 – Updated: 2026-05-11 20:02
VLAI
Title
wifi: iwlwifi: fix double-free bug
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix double-free bug The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation. Therefore, the freeing must also be done differently, explicitly NULL'ing it out after the free, since otherwise there's a nasty double-free bug here if a file fails to load after this has been parsed, and we get another free later (e.g. because no other file exists.) Fix that by adding the missing NULL assignment.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 19:29 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5e31b3df86ec6fbb925eee77fe2c450099c61dff , < ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad (git)
Affected: 5e31b3df86ec6fbb925eee77fe2c450099c61dff , < d24eb9a27bea8fe5237fa71be274391d9d51eff2 (git)
Affected: 5e31b3df86ec6fbb925eee77fe2c450099c61dff , < 353d321f63f7dbfc9ef58498cc732c9fe886a596 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (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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                      "versionEndExcluding": "6.7.6",
                      "versionStartIncluding": "6.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8",
                      "versionStartIncluding": "6.4",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: fix double-free bug\n\nThe storage for the TLV PC register data wasn\u0027t done like all\nthe other storage in the drv-\u003efw area, which is cleared at the\nend of deallocation. Therefore, the freeing must also be done\ndifferently, explicitly NULL\u0027ing it out after the free, since\notherwise there\u0027s a nasty double-free bug here if a file fails\nto load after this has been parsed, and we get another free\nlater (e.g. because no other file exists.) Fix that by adding\nthe missing NULL assignment."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:02:23.603Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad"
            },
            {
              "url": "https://git.kernel.org/stable/c/d24eb9a27bea8fe5237fa71be274391d9d51eff2"
            },
            {
              "url": "https://git.kernel.org/stable/c/353d321f63f7dbfc9ef58498cc732c9fe886a596"
            }
          ],
          "title": "wifi: iwlwifi: fix double-free bug",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26694",
        "datePublished": "2024-04-03T14:54:55.138Z",
        "dateReserved": "2024-02-19T14:20:24.156Z",
        "dateUpdated": "2026-05-11T20:02:23.603Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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