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Unrated severityNVD Advisory· Published Oct 1, 2025

HID: multitouch: Correct devm device reference for hidinput input_dev name

CVE-2023-53454

Description

In the Linux kernel, the following vulnerability has been resolved:

HID: multitouch: Correct devm device reference for hidinput input_dev name

Reference the HID device rather than the input device for the devm allocation of the input_dev name. Referencing the input_dev would lead to a use-after-free when the input_dev was unregistered and subsequently fires a uevent that depends on the name. At the point of firing the uevent, the name would be freed by devres management.

Use devm_kasprintf to simplify the logic for allocating memory and formatting the input_dev name string.

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Affected products

167

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Vulnerability mechanics

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