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usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop cc_debounce_dwork is queued from the set_cc() and start_toggling() callbacks, which run from TCPM's kthread worker. port_stop() returns before tcpm_unregister_port() destroys that worker. Flushing the worker during unregister may therefore run a callback which queues the delayed work after port_stop() has returned. The delayed work can then run after devres has freed pmic_typec_port. Use disable_delayed_work_sync() in port_stop() to cancel a pending instance and prevent the TCPM callbacks from queueing another one. This issue was found by an in-house static analysis tool.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.110, 6.18.51, 7.2.5
CVEs
CVE-2026-90027
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 21:30 UTC · Revision 1

Source evidence

usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop

core-osv · Original source

Published 16 Sept 2026, 10:33 UTC

In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop cc_debounce_dwork is queued from the set_cc() and start_toggling() callbacks, which run from TCPM's kthread worker. port_stop() returns before tcpm_unregister_port() destroys that worker. Flushing the worker during unregister may therefore run a callback which queues the delayed work after port_stop() has returned. The delayed work can then run after devres has freed pmic_typec_port. Use disable_delayed_work_sync() in port_stop() to cancel a pending instance and prevent the TCPM callbacks from queueing another one. This issue was found by an in-house static analysis tool.

osv:CVE-2026-90027

Kernel

Fixed versions: 6.12.110, 6.18.51, 7.2.5

Complete source record
{
  "id": "3141ace09dc28040a21a6fb707bb7ba7c290eef50f797a4b30b1e49c400ae05a",
  "url": "https://osv.dev/vulnerability/CVE-2026-90027",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop cc_debounce_dwork is queued from the set_cc() and start_toggling() callbacks, which run from TCPM's kthread worker. port_stop() returns before tcpm_unregister_port() destroys that worker. Flushing the worker during unregister may therefore run a callback which queues the delayed work after port_stop() has returned. The delayed work can then run after devres has freed pmic_typec_port. Use disable_delayed_work_sync() in port_stop() to cancel a pending instance and prevent the TCPM callbacks from queueing another one. This issue was found by an in-house static analysis tool.",
    "evidence": "osv:CVE-2026-90027",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-90027",
      "aliases": [
        "CVE-2026-90027"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a4422ff221429c600c3dc5d0394fb3738b89d040"
                },
                {
                  "fixed": "4359b5f95c93a4658e08368fa6fab9d89eb98447"
                },
                {
                  "fixed": "c614d7c44ca7fb78867ba46b233acdb59287e8c8"
                },
                {
                  "fixed": "1ab669c2b44e1040ddfab7cd7f717aad580d17aa"
                },
                {
                  "fixed": "263f7d61a4201cde16849b2d016251806e7418be"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90027.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.12.110"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.51"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90027.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.764159449Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1ab669c2b44e1040ddfab7cd7f717aad580d17aa",
        "https://git.kernel.org/stable/c/263f7d61a4201cde16849b2d016251806e7418be",
        "https://git.kernel.org/stable/c/4359b5f95c93a4658e08368fa6fab9d89eb98447",
        "https://git.kernel.org/stable/c/c614d7c44ca7fb78867ba46b233acdb59287e8c8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90027.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90027",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90027.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90027",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490276,
  "published_at": "2026-09-16T10:33:29.7+00:00"
}