FKIE_CVE-2026-64337

Vulnerability from fkie_nvd - Published: 2026-07-25 10:17 - Updated: 2026-07-25 10:17
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00c3fef4c2dc2c7cbd8281f8fda09d1913420f09
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0bddda5a11665c210339de76d27ebbd1a2e0b43c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3cee30f1138281a1d247bb053a1ad4f7c5b04e98
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4183874b7925f4a98b400cf857bea26ee87da236
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/835b0596d4c9bdef93f842d8f826978fb4956b74
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e8f739a3860d043dcc135371637e82f53132efe5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f3c4026524d3660c73ef2838b99776d37631e039
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/mtu3/mtu3_gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3cee30f1138281a1d247bb053a1ad4f7c5b04e98",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "f3c4026524d3660c73ef2838b99776d37631e039",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "e8f739a3860d043dcc135371637e82f53132efe5",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "4183874b7925f4a98b400cf857bea26ee87da236",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "00c3fef4c2dc2c7cbd8281f8fda09d1913420f09",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "8c29d9cfab1c3cf0d0b7fcdf9255597be30aa3e1",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "835b0596d4c9bdef93f842d8f826978fb4956b74",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            },
            {
              "lessThan": "0bddda5a11665c210339de76d27ebbd1a2e0b43c",
              "status": "affected",
              "version": "df2069acb00569a6299d6e11aa1865eeba463848",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/mtu3/mtu3_gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc3",
              "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: 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": "CVE-2026-64337",
  "lastModified": "2026-07-25T10:17:15.590",
  "metrics": {},
  "published": "2026-07-25T10:17:15.590",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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