CVE-2026-90027
HIGH
7,8
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
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.
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