# CVE-2026-90027: usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop

CVE-2026-90027 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-90027, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-90027
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 16, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90027

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.111-1 | [DEBIAN-CVE-2026-90027](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90027.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-90027](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90027.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | [DEBIAN-CVE-2026-90027](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90027.md) | Sep 23, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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