CVE-2026-97600 (GCVE-0-2026-97600)
Vulnerability from cvelistv5
Published
2026-09-25 10:22
Modified
2026-10-21 12:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ieee802154: cc2520: fix FIFOP work use-after-free The FIFOP interrupt handler queues cc2520_fifop_irqwork. On removal, cc2520_remove() only flushes the work. The devm-managed FIFOP IRQ remains active until after ->remove() returns and can queue the work again after that flush, allowing it to run after the private data is released. Disable the work with disable_work_sync() instead of flushing it, so the handler can no longer queue it once removal begins. Destroy the buffer mutex last, since the worker and the stop callback invoked through ieee802154_unregister_hw() both take it. Found by an in-house static analysis tool.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0da6bc8cc3417a5e452efb886ff2c61e72b743d6
Version: 0da6bc8cc3417a5e452efb886ff2c61e72b743d6
Version: 0da6bc8cc3417a5e452efb886ff2c61e72b743d6
Version: 0da6bc8cc3417a5e452efb886ff2c61e72b743d6
Version: 0da6bc8cc3417a5e452efb886ff2c61e72b743d6
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ieee802154/cc2520.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4a1ba62a486a4c43af91d01661a95e82dc4aaefa",
              "status": "affected",
              "version": "0da6bc8cc3417a5e452efb886ff2c61e72b743d6",
              "versionType": "git"
            },
            {
              "lessThan": "56a9919d8494fb118eebf167bef0622528fbf2e7",
              "status": "affected",
              "version": "0da6bc8cc3417a5e452efb886ff2c61e72b743d6",
              "versionType": "git"
            },
            {
              "lessThan": "c68fd52c73b676aee67020011e98fea125a978f4",
              "status": "affected",
              "version": "0da6bc8cc3417a5e452efb886ff2c61e72b743d6",
              "versionType": "git"
            },
            {
              "lessThan": "890a80d516a1447db5c21bf92841a82914ea897d",
              "status": "affected",
              "version": "0da6bc8cc3417a5e452efb886ff2c61e72b743d6",
              "versionType": "git"
            },
            {
              "lessThan": "ff5891b266a7fc6a062710836be84f1cc19338b5",
              "status": "affected",
              "version": "0da6bc8cc3417a5e452efb886ff2c61e72b743d6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ieee802154/cc2520.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.7",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: cc2520: fix FIFOP work use-after-free\n\nThe FIFOP interrupt handler queues cc2520_fifop_irqwork.  On removal,\ncc2520_remove() only flushes the work.  The devm-managed FIFOP IRQ\nremains active until after -\u003eremove() returns and can queue the work\nagain after that flush, allowing it to run after the private data is\nreleased.\n\nDisable the work with disable_work_sync() instead of flushing it, so\nthe handler can no longer queue it once removal begins.  Destroy the\nbuffer mutex last, since the worker and the stop callback invoked\nthrough ieee802154_unregister_hw() both take it.\n\nFound by an in-house static analysis tool."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:53:24.716Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4a1ba62a486a4c43af91d01661a95e82dc4aaefa"
        },
        {
          "url": "https://git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5"
        }
      ],
      "title": "ieee802154: cc2520: fix FIFOP work use-after-free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97600",
    "datePublished": "2026-09-25T10:22:14.197Z",
    "dateReserved": "2026-09-24T16:01:01.158Z",
    "dateUpdated": "2026-10-21T12:53:24.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.