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CVE-2026-80826 (GCVE-0-2026-80826)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:54 – Updated: 2026-09-04 15:54
VLAI
Title
USB: c67x00: fix use-after-free in c67x00_add_iso_urb()
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < e4039e9bebb528dd9cd7ac72aeaec529c26c355a (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < ade18b4ce78a16558f4f435aece80082f6f7b64c (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < bb572801290e25ec1c4753d14af35777303f5d6b (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < 62cd519ab74cac499036cd88c11692f8f0d53e14 (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < ff172092cba7ec990ecc7b610ce703e19570b8f0 (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421 (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < 7983daa159981fac125db2457437723f38ea1472 (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < f24dcc61bd0ecf7639fac5bf700450b398d793a7 (git)
Affected: e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d , < b1e24de475bf2d66fffc9103f3444b783527d55a (git)
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Linux Linux Affected: 2.6.26
Unaffected: 0 , < 2.6.26 (semver)
Unaffected: 5.10.269 , ≤ 5.10.* (semver)
Unaffected: 5.15.220 , ≤ 5.15.* (semver)
Unaffected: 6.1.187 , ≤ 6.1.* (semver)
Unaffected: 6.6.156 , ≤ 6.6.* (semver)
Unaffected: 6.12.108 , ≤ 6.12.* (semver)
Unaffected: 6.18.49 , ≤ 6.18.* (semver)
Unaffected: 7.1.13 , ≤ 7.1.* (semver)
Unaffected: 7.2.3 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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      "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": "2026-09-04T15:54:30.131Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/e4039e9bebb528dd9cd7ac72aeaec529c26c355a"
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        {
          "url": "https://git.kernel.org/stable/c/ade18b4ce78a16558f4f435aece80082f6f7b64c"
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        {
          "url": "https://git.kernel.org/stable/c/bb572801290e25ec1c4753d14af35777303f5d6b"
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          "url": "https://git.kernel.org/stable/c/62cd519ab74cac499036cd88c11692f8f0d53e14"
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        },
        {
          "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"
      }
    }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80826",
    "datePublished": "2026-09-04T15:54:30.131Z",
    "dateReserved": "2026-08-26T14:34:25.795Z",
    "dateUpdated": "2026-09-04T15:54:30.131Z",
    "state": "PUBLISHED"
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "USB: c67x00: fix use-after-free in c67x00_add_iso_urb()",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-80826.json",
      "version": "1"
    },
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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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/usb/c67x00/c67x00-sched.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"e4039e9bebb528dd9cd7ac72aeaec529c26c355a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"ade18b4ce78a16558f4f435aece80082f6f7b64c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"bb572801290e25ec1c4753d14af35777303f5d6b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"62cd519ab74cac499036cd88c11692f8f0d53e14\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"ff172092cba7ec990ecc7b610ce703e19570b8f0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"b4cb8081cf80f82e48fbe9c021a8f6d0fa2ed421\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"7983daa159981fac125db2457437723f38ea1472\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"f24dcc61bd0ecf7639fac5bf700450b398d793a7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e9b29ffc519b9e63d4e1c0b1278bb951bb418a9d\",\"lessThan\":\"b1e24de475bf2d66fffc9103f3444b783527d55a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/usb/c67x00/c67x00-sched.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.26\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.26\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.269\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.220\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.187\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.156\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.108\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.49\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.13\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.3\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-08T17:16:45Z",
      "cve": "CVE-2026-80826",
      "id": "CVE-2026-80826",
      "initial_release_date": "2026-09-05T00:26:42Z",
      "product_status:known_affected": "269",
      "product_status:known_not_affected": "84",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80826",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80826.json",
      "version": "4"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.