CVE-2026-80826 (GCVE-0-2026-80826)
Vulnerability from cvelistv5
Published
2026-09-04 15:54
Modified
2026-10-19 08:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: c67x00: fix use-after-free in c67x00_add_iso_urb() When TD creation fails for the last packet of an isochronous URB, c67x00_add_iso_urb() gives the URB back before updating the endpoint scheduling state. c67x00_giveback_urb() frees the URB private data, and the completion callback may release the final URB reference. The following accesses to urbp->ep_data, urb->interval, and urbp->cnt can therefore use freed memory. Update next_frame and cnt before giving back the failed final packet, making the giveback the last operation that uses the URB and its private data.
References
Impacted products
Vendor Product Version
Linux Linux Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
Version: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/c67x00/c67x00-sched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e4039e9bebb528dd9cd7ac72aeaec529c26c355a",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "ade18b4ce78a16558f4f435aece80082f6f7b64c",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "bb572801290e25ec1c4753d14af35777303f5d6b",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "62cd519ab74cac499036cd88c11692f8f0d53e14",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "ff172092cba7ec990ecc7b610ce703e19570b8f0",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "7983daa159981fac125db2457437723f38ea1472",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "f24dcc61bd0ecf7639fac5bf700450b398d793a7",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            },
            {
              "lessThan": "b1e24de475bf2d66fffc9103f3444b783527d55a",
              "status": "affected",
              "version": "e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/c67x00/c67x00-sched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.26"
            },
            {
              "lessThan": "2.6.26",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.269",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.187",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.108",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.49",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.3",
              "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": "5.10.269",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.220",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.187",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.156",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.108",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.49",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.13",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.3",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "2.6.26",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: c67x00: fix use-after-free in c67x00_add_iso_urb()\n\nWhen TD creation fails for the last packet of an isochronous URB,\nc67x00_add_iso_urb() gives the URB back before updating the endpoint\nscheduling state.\n\nc67x00_giveback_urb() frees the URB private data, and the completion\ncallback may release the final URB reference. The following accesses to\nurbp-\u003eep_data, urb-\u003einterval, and urbp-\u003ecnt can therefore use freed\nmemory.\n\nUpdate next_frame and cnt before giving back the failed final packet,\nmaking the giveback the last operation that uses the URB and its private\ndata."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:44:18.781Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b"
        },
        {
          "url": "https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff172092cba7ec990ecc7b610ce703e19570b8f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421"
        },
        {
          "url": "https://git.kernel.org/stable/c/7983daa159981fac125db2457437723f38ea1472"
        },
        {
          "url": "https://git.kernel.org/stable/c/f24dcc61bd0ecf7639fac5bf700450b398d793a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1e24de475bf2d66fffc9103f3444b783527d55a"
        }
      ],
      "title": "USB: c67x00: fix use-after-free in c67x00_add_iso_urb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80826",
    "datePublished": "2026-09-04T15:54:30.131Z",
    "dateReserved": "2026-08-26T14:34:25.795Z",
    "dateUpdated": "2026-10-19T08:44:18.781Z",
    "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.