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FKIE_CVE-2026-80826

Vulnerability from fkie_nvd - Published: 2026-09-04 16:18 - Updated: 2026-09-04 16:18
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7983daa159981fac125db2457437723f38ea1472
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1e24de475bf2d66fffc9103f3444b783527d55a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f24dcc61bd0ecf7639fac5bf700450b398d793a7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff172092cba7ec990ecc7b610ce703e19570b8f0
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-80826",
  "lastModified": "2026-09-04T16:18:10.543",
  "metrics": {},
  "published": "2026-09-04T16:18:10.543",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7983daa159981fac125db2457437723f38ea1472"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1e24de475bf2d66fffc9103f3444b783527d55a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f24dcc61bd0ecf7639fac5bf700450b398d793a7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ff172092cba7ec990ecc7b610ce703e19570b8f0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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