CVE-2026-64454 (GCVE-0-2026-64454)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-11-06 16:44
VLAI
Title
usb: dwc3: run gadget disconnect from sleepable suspend context
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: run gadget disconnect from sleepable suspend context dwc3_gadget_suspend() takes dwc->lock with IRQs disabled and then calls dwc3_disconnect_gadget(). For async callbacks that helper only uses plain spin_unlock()/spin_lock(), so the gadget ->disconnect() callback still runs with IRQs disabled and any sleepable callback trips Lockdep. This issue was found by our static analysis tool and then manually reviewed against the current tree. The grounded PoC kept the dwc3_gadget_suspend() -> dwc3_disconnect_gadget() -> gadget_driver->disconnect() chain, and Lockdep reported: BUG: sleeping function called from invalid context gadget_disconnect+0x21/0x39 [vuln_msv] dwc3_gadget_suspend.constprop.0+0x2b/0x42 [vuln_msv] Keep the disconnect callback selection in one common helper, but add a sleepable suspend-side wrapper which snapshots the callback under dwc->lock and then runs it after spin_unlock_irqrestore(). The regular event path still uses the existing spin_unlock()/spin_lock() window.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 16:38 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 20351ddb1f41cfb3ae20e105425ef43a28393d76 , < b399be2958456efe1b64b19c55a54a24e9035769 (git)
Affected: ad43004fd5326bec4466ecc8a07fe0e570b553ca , < 48958478cb8dbc429a5b19f36e866b63d6297d1d (git)
Affected: c8540870af4ce6ddeb27a7bb5498b75fb29b643c , < 5e5798880eb1533a7de6fb68eb14b2d8202ebf76 (git)
Affected: c8540870af4ce6ddeb27a7bb5498b75fb29b643c , < e0e4f15d4225fb7156cc0e3c21eb8953114f9b89 (git)
Affected: c8540870af4ce6ddeb27a7bb5498b75fb29b643c , < c4e232bd07fe2b69a6e5c380db41dd36b95e0524 (git)
Affected: c8540870af4ce6ddeb27a7bb5498b75fb29b643c , < 642e04f5c292d04070ae6e4374fbf14cc40a2465 (git)
Affected: c8540870af4ce6ddeb27a7bb5498b75fb29b643c , < 010382937fb69892b3469ac4d30af072262f59e8 (git)
Affected: 06684c72b6b153dc434bb6ccebbb49f4cd812b5e (git)
Affected: 5.15.128 , < 5.15.212 (semver)
Affected: 6.1.30 , < 6.1.178 (semver)
Affected: 6.3.4 , < 6.4 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (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 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "current_release_date": "2026-11-05T22:04:54+00:00",
      "cve": "CVE-2026-64454",
      "id": "CVE-2026-64454",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:known_affected": "108",
      "product_status:known_not_affected": "92",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: dwc3: run gadget disconnect from sleepable suspend context",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64454.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-64454",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-11-06T16:38:45.590842Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-11-06T16:38:46.653Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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            {
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              "product": "Linux",
              "programFiles": [
                "drivers/usb/dwc3/gadget.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
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                  "status": "affected",
                  "version": "5.15.128",
                  "versionType": "semver"
                },
                {
                  "lessThan": "6.1.178",
                  "status": "affected",
                  "version": "6.1.30",
                  "versionType": "semver"
                },
                {
                  "lessThan": "6.4",
                  "status": "affected",
                  "version": "6.3.4",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/usb/dwc3/gadget.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.4"
                },
                {
                  "lessThan": "6.4",
                  "status": "unaffected",
                  "version": "0",
                  "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.*",
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                  "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",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.212",
                      "versionStartIncluding": "5.15.128",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.178",
                      "versionStartIncluding": "6.1.30",
                      "vulnerable": true
                    },
                    {
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                      "versionEndExcluding": "6.6.145",
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                      "vulnerable": true
                    },
                    {
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                    },
                    {
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                      "versionEndExcluding": "6.18.39",
                      "versionStartIncluding": "6.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "7.1.4",
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                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
                    },
                    {
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                      "versionStartIncluding": "6.3.4",
                      "vulnerable": true
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                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: run gadget disconnect from sleepable suspend context\n\ndwc3_gadget_suspend() takes dwc-\u003elock with IRQs disabled and then calls\ndwc3_disconnect_gadget().  For async callbacks that helper only uses\nplain spin_unlock()/spin_lock(), so the gadget -\u003edisconnect() callback\nstill runs with IRQs disabled and any sleepable callback trips Lockdep.\n\nThis issue was found by our static analysis tool and then manually\nreviewed against the current tree.\n\nThe grounded PoC kept the dwc3_gadget_suspend() -\u003e\ndwc3_disconnect_gadget() -\u003e gadget_driver-\u003edisconnect() chain, and\nLockdep reported:\n\n  BUG: sleeping function called from invalid context\n  gadget_disconnect+0x21/0x39 [vuln_msv]\n  dwc3_gadget_suspend.constprop.0+0x2b/0x42 [vuln_msv]\n\nKeep the disconnect callback selection in one common helper, but add a\nsleepable suspend-side wrapper which snapshots the callback under\ndwc-\u003elock and then runs it after spin_unlock_irqrestore().  The regular\nevent path still uses the existing spin_unlock()/spin_lock() window."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-17T04:55:58.408Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/b399be2958456efe1b64b19c55a54a24e9035769"
            },
            {
              "url": "https://git.kernel.org/stable/c/48958478cb8dbc429a5b19f36e866b63d6297d1d"
            },
            {
              "url": "https://git.kernel.org/stable/c/5e5798880eb1533a7de6fb68eb14b2d8202ebf76"
            },
            {
              "url": "https://git.kernel.org/stable/c/e0e4f15d4225fb7156cc0e3c21eb8953114f9b89"
            },
            {
              "url": "https://git.kernel.org/stable/c/c4e232bd07fe2b69a6e5c380db41dd36b95e0524"
            },
            {
              "url": "https://git.kernel.org/stable/c/642e04f5c292d04070ae6e4374fbf14cc40a2465"
            },
            {
              "url": "https://git.kernel.org/stable/c/010382937fb69892b3469ac4d30af072262f59e8"
            }
          ],
          "title": "usb: dwc3: run gadget disconnect from sleepable suspend context",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-64454",
        "datePublished": "2026-07-25T08:51:23.212Z",
        "dateReserved": "2026-07-19T15:36:31.789Z",
        "dateUpdated": "2026-11-06T16:44:52.294Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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