CVE-2025-38497 (GCVE-0-2025-38497)
Vulnerability from cvelistv5
Published
2025-07-28 11:22
Modified
2025-07-28 11:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: Fix OOB read on empty string write When writing an empty string to either 'qw_sign' or 'landingPage' sysfs attributes, the store functions attempt to access page[l - 1] before validating that the length 'l' is greater than zero. This patch fixes the vulnerability by adding a check at the beginning of os_desc_qw_sign_store() and webusb_landingPage_store() to handle the zero-length input case gracefully by returning immediately.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/configfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2798111f8e504ac747cce911226135d50b8de468",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "58bdd5160184645771553ea732da5c2887fc9bd1",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "783ea37b237a9b524f1e5ca018ea17d772ee0ea0",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "22b7897c289cc25d99c603f5144096142a30d897",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "3014168731b7930300aab656085af784edc861f6",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/configfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.147",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.100",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.147",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.100",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.40",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Fix OOB read on empty string write\n\nWhen writing an empty string to either \u0027qw_sign\u0027 or \u0027landingPage\u0027\nsysfs attributes, the store functions attempt to access page[l - 1]\nbefore validating that the length \u0027l\u0027 is greater than zero.\n\nThis patch fixes the vulnerability by adding a check at the beginning\nof os_desc_qw_sign_store() and webusb_landingPage_store() to handle\nthe zero-length input case gracefully by returning immediately."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T11:22:05.855Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468"
        },
        {
          "url": "https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1"
        },
        {
          "url": "https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0"
        },
        {
          "url": "https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897"
        },
        {
          "url": "https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6"
        }
      ],
      "title": "usb: gadget: configfs: Fix OOB read on empty string write",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38497",
    "datePublished": "2025-07-28T11:22:05.855Z",
    "dateReserved": "2025-04-16T04:51:24.022Z",
    "dateUpdated": "2025-07-28T11:22:05.855Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38497\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-28T12:15:31.963\",\"lastModified\":\"2025-07-29T14:14:29.590\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: gadget: configfs: Fix OOB read on empty string write\\n\\nWhen writing an empty string to either \u0027qw_sign\u0027 or \u0027landingPage\u0027\\nsysfs attributes, the store functions attempt to access page[l - 1]\\nbefore validating that the length \u0027l\u0027 is greater than zero.\\n\\nThis patch fixes the vulnerability by adding a check at the beginning\\nof os_desc_qw_sign_store() and webusb_landingPage_store() to handle\\nthe zero-length input case gracefully by returning immediately.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: configfs: Correcci\u00f3n de lectura OOB en escritura de cadena vac\u00eda. Al escribir una cadena vac\u00eda en los atributos sysfs \u0027qw_sign\u0027 o \u0027landingPage\u0027, las funciones de almacenamiento intentan acceder a page[l - 1] antes de validar que la longitud \u0027l\u0027 sea mayor que cero. Este parche corrige la vulnerabilidad a\u00f1adiendo una comprobaci\u00f3n al inicio de os_desc_qw_sign_store() y webusb_landingPage_store() para gestionar correctamente la entrada de longitud cero, retornando inmediatamente.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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.
  • 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.