Vulnerability-Lookup

CVE-2026-64337 (GCVE-0-2026-64337)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:50 – Updated: 2026-07-25 08:50

Title

usb: mtu3: unmap request DMA on queue failure

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: mtu3: unmap request DMA on queue failure mtu3_gadget_queue() maps the request before checking whether the QMU GPD ring can accept another transfer. the request is returned with -EAGAIN before it is linked on the endpoint request list if mtu3_prepare_transfer() fails. Normal completion and dequeue paths unmap requests from mtu3_req_complete(), but this error path never reaches that helper, so the DMA mapping is left active. Unmap the request before returning from the failed queue path.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/3cee30f1138281a1d…
https://git.kernel.org/stable/c/f3c4026524d3660c7…
https://git.kernel.org/stable/c/e8f739a3860d043dc…
https://git.kernel.org/stable/c/4183874b7925f4a98…
https://git.kernel.org/stable/c/00c3fef4c2dc2c7cb…
https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d…
https://git.kernel.org/stable/c/835b0596d4c9bdef9…
https://git.kernel.org/stable/c/0bddda5a11665c210…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 3cee30f1138281a1d247bb053a1ad4f7c5b04e98 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < f3c4026524d3660c73ef2838b99776d37631e039 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < e8f739a3860d043dcc135371637e82f53132efe5 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 4183874b7925f4a98b400cf857bea26ee87da236 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 00c3fef4c2dc2c7cbd8281f8fda09d1913420f09 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 835b0596d4c9bdef93f842d8f826978fb4956b74 (git) Affected: df2069acb00569a6299d6e11aa1865eeba463848 , < 0bddda5a11665c210339de76d27ebbd1a2e0b43c (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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          "programFiles": [
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              "version": "0",
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              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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            {
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            {
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              "version": "7.2-rc3",
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            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
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                {
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
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                  "versionEndExcluding": "7.2-rc3",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:50:02.066Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039"
        },
        {
          "url": "https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5"
        },
        {
          "url": "https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236"
        },
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          "url": "https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c"
        }
      ],
      "title": "usb: mtu3: unmap request DMA on queue failure",
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      }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64337",
    "datePublished": "2026-07-25T08:50:02.066Z",
    "dateReserved": "2026-07-19T15:36:31.781Z",
    "dateUpdated": "2026-07-25T08:50:02.066Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64337",
      "date": "2026-07-26",
      "epss": "0.00211",
      "percentile": "0.11449"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-64337\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-25T10:17:15.590\",\"lastModified\":\"2026-07-25T10:17:15.590\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: mtu3: unmap request DMA on queue failure\\n\\nmtu3_gadget_queue() maps the request before checking whether\\nthe QMU GPD ring can accept another transfer. the request is\\nreturned with -EAGAIN before it is linked on the endpoint\\nrequest list if mtu3_prepare_transfer() fails.\\n\\nNormal completion and dequeue paths unmap requests from\\nmtu3_req_complete(), but this error path never reaches that\\nhelper, so the DMA mapping is left active. Unmap the request\\nbefore returning from the failed queue path.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/usb/mtu3/mtu3_gadget.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"3cee30f1138281a1d247bb053a1ad4f7c5b04e98\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"f3c4026524d3660c73ef2838b99776d37631e039\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"e8f739a3860d043dcc135371637e82f53132efe5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"4183874b7925f4a98b400cf857bea26ee87da236\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"00c3fef4c2dc2c7cbd8281f8fda09d1913420f09\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"835b0596d4c9bdef93f842d8f826978fb4956b74\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"df2069acb00569a6299d6e11aa1865eeba463848\",\"lessThan\":\"0bddda5a11665c210339de76d27ebbd1a2e0b43c\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/usb/mtu3/mtu3_gadget.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc3\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:01:33Z",
      "cve": "CVE-2026-64337",
      "id": "CVE-2026-64337",
      "initial_release_date": "2026-07-25T16:01:33Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64337",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64337.json",
      "version": "2"
    }
  }
}

GHSA-WVFQ-6RWV-77CQ

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

usb: mtu3: unmap request DMA on queue failure

mtu3_gadget_queue() maps the request before checking whether the QMU GPD ring can accept another transfer. the request is returned with -EAGAIN before it is linked on the endpoint request list if mtu3_prepare_transfer() fails.

Normal completion and dequeue paths unmap requests from mtu3_req_complete(), but this error path never reaches that helper, so the DMA mapping is left active. Unmap the request before returning from the failed queue path.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64337"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: mtu3: unmap request DMA on queue failure\n\nmtu3_gadget_queue() maps the request before checking whether\nthe QMU GPD ring can accept another transfer. the request is\nreturned with -EAGAIN before it is linked on the endpoint\nrequest list if mtu3_prepare_transfer() fails.\n\nNormal completion and dequeue paths unmap requests from\nmtu3_req_complete(), but this error path never reaches that\nhelper, so the DMA mapping is left active. Unmap the request\nbefore returning from the failed queue path.",
  "id": "GHSA-wvfq-6rwv-77cq",
  "modified": "2026-07-25T12:31:32Z",
  "published": "2026-07-25T12:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64337"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64337 (GCVE-0-2026-64337)

GHSA-WVFQ-6RWV-77CQ

Tags

Sightings

Nomenclature