CVE-2025-40314 (GCVE-0-2025-40314)

Vulnerability from cvelistv5 – Published: 2025-12-08 00:46 – Updated: 2025-12-08 00:46
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget In the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget structure (pdev->gadget) was freed before its endpoints. The endpoints are linked via the ep_list in the gadget structure. Freeing the gadget first leaves dangling pointers in the endpoint list. When the endpoints are subsequently freed, this results in a use-after-free. Fix: By separating the usb_del_gadget_udc() operation into distinct "del" and "put" steps, cdnsp_gadget_free_endpoints() can be executed prior to the final release of the gadget structure with usb_put_gadget(). A patch similar to bb9c74a5bd14("usb: dwc3: gadget: Free gadget structure only after freeing endpoints").
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0cf9a50af91fbdac3849f8d950e883a3eaa3ecea (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 37158ce6ba964b62d1e3eebd11f03c6900a52dd1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ea37884097a0931abb8e11e40eacfb25e9fdb5e9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9c52f01429c377a2d32cafc977465f37b5384f77 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fdf573c517627a96f5040f988e9b21267806be5c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 87c5ff5615dc0a37167e8faf3adeeddc6f1344a3 (git)
Create a notification for this product.
    Linux Linux Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdnsp-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0cf9a50af91fbdac3849f8d950e883a3eaa3ecea",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "37158ce6ba964b62d1e3eebd11f03c6900a52dd1",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "ea37884097a0931abb8e11e40eacfb25e9fdb5e9",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9c52f01429c377a2d32cafc977465f37b5384f77",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "fdf573c517627a96f5040f988e9b21267806be5c",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "87c5ff5615dc0a37167e8faf3adeeddc6f1344a3",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdnsp-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.197",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.159",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.117",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.58",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget\n\nIn the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget\nstructure (pdev-\u003egadget) was freed before its endpoints.\nThe endpoints are linked via the ep_list in the gadget structure.\nFreeing the gadget first leaves dangling pointers in the endpoint list.\nWhen the endpoints are subsequently freed, this results in a use-after-free.\n\nFix:\nBy separating the usb_del_gadget_udc() operation into distinct \"del\" and\n\"put\" steps, cdnsp_gadget_free_endpoints() can be executed prior to the\nfinal release of the gadget structure with usb_put_gadget().\n\nA patch similar to bb9c74a5bd14(\"usb: dwc3: gadget: Free gadget structure\n only after freeing endpoints\")."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-08T00:46:40.576Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0cf9a50af91fbdac3849f8d950e883a3eaa3ecea"
        },
        {
          "url": "https://git.kernel.org/stable/c/37158ce6ba964b62d1e3eebd11f03c6900a52dd1"
        },
        {
          "url": "https://git.kernel.org/stable/c/ea37884097a0931abb8e11e40eacfb25e9fdb5e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c52f01429c377a2d32cafc977465f37b5384f77"
        },
        {
          "url": "https://git.kernel.org/stable/c/fdf573c517627a96f5040f988e9b21267806be5c"
        },
        {
          "url": "https://git.kernel.org/stable/c/87c5ff5615dc0a37167e8faf3adeeddc6f1344a3"
        }
      ],
      "title": "usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40314",
    "datePublished": "2025-12-08T00:46:40.576Z",
    "dateReserved": "2025-04-16T07:20:57.185Z",
    "dateUpdated": "2025-12-08T00:46:40.576Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40314\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-08T01:16:03.877\",\"lastModified\":\"2025-12-08T18:26:19.900\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget\\n\\nIn the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget\\nstructure (pdev-\u003egadget) was freed before its endpoints.\\nThe endpoints are linked via the ep_list in the gadget structure.\\nFreeing the gadget first leaves dangling pointers in the endpoint list.\\nWhen the endpoints are subsequently freed, this results in a use-after-free.\\n\\nFix:\\nBy separating the usb_del_gadget_udc() operation into distinct \\\"del\\\" and\\n\\\"put\\\" steps, cdnsp_gadget_free_endpoints() can be executed prior to the\\nfinal release of the gadget structure with usb_put_gadget().\\n\\nA patch similar to bb9c74a5bd14(\\\"usb: dwc3: gadget: Free gadget structure\\n only after freeing endpoints\\\").\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0cf9a50af91fbdac3849f8d950e883a3eaa3ecea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/37158ce6ba964b62d1e3eebd11f03c6900a52dd1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/87c5ff5615dc0a37167e8faf3adeeddc6f1344a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9c52f01429c377a2d32cafc977465f37b5384f77\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ea37884097a0931abb8e11e40eacfb25e9fdb5e9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fdf573c517627a96f5040f988e9b21267806be5c\",\"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 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.