CVE-2026-90027

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa4422ff221429c600c3dc5d0394fb3738b89d040 < 4359b5f95c93a4658e08368fa6fab9d89eb98447affected
LinuxLinuxa4422ff221429c600c3dc5d0394fb3738b89d040 < c614d7c44ca7fb78867ba46b233acdb59287e8c8affected
LinuxLinuxa4422ff221429c600c3dc5d0394fb3738b89d040 < 1ab669c2b44e1040ddfab7cd7f717aad580d17aaaffected
LinuxLinuxa4422ff221429c600c3dc5d0394fb3738b89d040 < 263f7d61a4201cde16849b2d016251806e7418beaffected
LinuxLinux6.5affected
LinuxLinux0 < 6.5unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc2 <= *unaffected

Weaknesses

References