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.

High

CVSS

7.8

Important

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0018

7th percentile

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

Product	Fixed in	Fix	Released
Linux
linux · Debian 13.5 (trixie)	6.12.111-1	DEBIAN-CVE-2026-90027	Sep 23, 2026
linux · Debian 14	7.2.6-1	DEBIAN-CVE-2026-90027	Sep 23, 2026
linux-6.12 · Debian 12.15 (bookworm)	6.12.111-1~deb12u1	DEBIAN-CVE-2026-90027	Sep 23, 2026

Details

Published
September 16, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90027

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