CVE-2026-80990 (GCVE-0-2026-80990)
Vulnerability from cvelistv5
Published
2026-09-11 19:42
Modified
2026-10-19 08:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Release the Rx HopID that was handed out on mismatch tb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range() as the lower bound, so a taken id is not an error there: the allocator returns the next free one above it. tbnet_connected_work() asks for the peer's transmit path, treats any other id as a failure and returns without releasing what it got, so that allocation stays live for the rest of the XDomain connection with nothing left holding a reference to it. Release the id when it is not the one we asked for, the same way the error unwind at the end of the function releases the expected one.
References
Impacted products
Vendor Product Version
Linux Linux Version: 180b0689425c6fb2b35e69a3316ee38371a782df
Version: 180b0689425c6fb2b35e69a3316ee38371a782df
Version: 180b0689425c6fb2b35e69a3316ee38371a782df
Version: 180b0689425c6fb2b35e69a3316ee38371a782df
Version: 180b0689425c6fb2b35e69a3316ee38371a782df
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/thunderbolt/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "47981eb66461ba4e74bbaea0f139adaaeb3991e9",
              "status": "affected",
              "version": "180b0689425c6fb2b35e69a3316ee38371a782df",
              "versionType": "git"
            },
            {
              "lessThan": "9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0",
              "status": "affected",
              "version": "180b0689425c6fb2b35e69a3316ee38371a782df",
              "versionType": "git"
            },
            {
              "lessThan": "61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea",
              "status": "affected",
              "version": "180b0689425c6fb2b35e69a3316ee38371a782df",
              "versionType": "git"
            },
            {
              "lessThan": "1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1",
              "status": "affected",
              "version": "180b0689425c6fb2b35e69a3316ee38371a782df",
              "versionType": "git"
            },
            {
              "lessThan": "2f1463554d0561a2fead81e3888604e5c1125e29",
              "status": "affected",
              "version": "180b0689425c6fb2b35e69a3316ee38371a782df",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/thunderbolt/main.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": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "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": "6.6.157",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: thunderbolt: Release the Rx HopID that was handed out on mismatch\n\ntb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range()\nas the lower bound, so a taken id is not an error there: the allocator\nreturns the next free one above it. tbnet_connected_work() asks for the\npeer\u0027s transmit path, treats any other id as a failure and returns\nwithout releasing what it got, so that allocation stays live for the rest\nof the XDomain connection with nothing left holding a reference to it.\n\nRelease the id when it is not the one we asked for, the same way the\nerror unwind at the end of the function releases the expected one."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:46:14.490Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/47981eb66461ba4e74bbaea0f139adaaeb3991e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0"
        },
        {
          "url": "https://git.kernel.org/stable/c/61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f1463554d0561a2fead81e3888604e5c1125e29"
        }
      ],
      "title": "net: thunderbolt: Release the Rx HopID that was handed out on mismatch",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80990",
    "datePublished": "2026-09-11T19:42:47.534Z",
    "dateReserved": "2026-08-26T14:34:25.811Z",
    "dateUpdated": "2026-10-19T08:46:14.490Z",
    "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.