Vulnerability-Lookup

GHSA-FCV3-4H5F-37C2

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-20 15:31

Details

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

usb: dwc2: Fix use after free in debug code

We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-63927"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc2: Fix use after free in debug code\n\nWe\u0027re not allowed to dereference \"urb\" after calling\nusb_hcd_giveback_urb() so save the urb-\u003estatus ahead of time.",
  "id": "GHSA-fcv3-4h5f-37c2",
  "modified": "2026-07-20T15:31:52Z",
  "published": "2026-07-19T18:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63927"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-63927 (GCVE-0-2026-63927)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-20 13:41

Title

usb: dwc2: Fix use after free in debug code

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: Fix use after free in debug code We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/d5fc183ed614aeba6…
https://git.kernel.org/stable/c/63b0dafa676aad4d0…
https://git.kernel.org/stable/c/9fe1d84f7e2cf3363…
https://git.kernel.org/stable/c/0584af4fe40fa5e25…
https://git.kernel.org/stable/c/a15eeeceb94cbc04e…
https://git.kernel.org/stable/c/84ea928ed584756e5…
https://git.kernel.org/stable/c/6d0b79d1d1118145e…
https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < d5fc183ed614aeba6779cc992325be560f9a4451 (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 63b0dafa676aad4d0c3f01a61ad8e2990907660c (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913 (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 0584af4fe40fa5e254a05d69ce658746de641708 (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < a15eeeceb94cbc04edef395e4d777ff554bdc27d (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 84ea928ed584756e59c6ac09736f12d1db95ded0 (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 6d0b79d1d1118145e48a68192b6d733e39387053 (git) Affected: 7359d482eb4d3967cc8be354405ae6be6eaf732c , < 9ea06a3fbf9f16e0d98c52cb3b99642be15ec281 (git)
Linux	Linux	Affected: 3.10 Unaffected: 0 , < 3.10 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc2/hcd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d5fc183ed614aeba6779cc992325be560f9a4451",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "63b0dafa676aad4d0c3f01a61ad8e2990907660c",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "0584af4fe40fa5e254a05d69ce658746de641708",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "a15eeeceb94cbc04edef395e4d777ff554bdc27d",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "84ea928ed584756e59c6ac09736f12d1db95ded0",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "6d0b79d1d1118145e48a68192b6d733e39387053",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            },
            {
              "lessThan": "9ea06a3fbf9f16e0d98c52cb3b99642be15ec281",
              "status": "affected",
              "version": "7359d482eb4d3967cc8be354405ae6be6eaf732c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc2/hcd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.259",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.210",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.176",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.143",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.93",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "3.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc2: Fix use after free in debug code\n\nWe\u0027re not allowed to dereference \"urb\" after calling\nusb_hcd_giveback_urb() so save the urb-\u003estatus ahead of time."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-20T13:41:37.085Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451"
        },
        {
          "url": "https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c"
        },
        {
          "url": "https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913"
        },
        {
          "url": "https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708"
        },
        {
          "url": "https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d"
        },
        {
          "url": "https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281"
        }
      ],
      "title": "usb: dwc2: Fix use after free in debug code",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-63927",
    "datePublished": "2026-07-19T14:55:27.864Z",
    "dateReserved": "2026-07-19T07:54:57.021Z",
    "dateUpdated": "2026-07-20T13:41:37.085Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-FCV3-4H5F-37C2

CVE-2026-63927 (GCVE-0-2026-63927)

Tags

Sightings

Nomenclature