CVE-2026-99069
UnknownSummary
In the Linux kernel Input: ati_remote2 driver, a type confusion occurs in device attribute handlers. The channel_mask and mode_mask attributes were moved to usb_interface devices, but the show and store callbacks still invoked to_usb_device() on a struct usb_interface pointer, producing an invalid usb_device pointer. The fix uses to_usb_interface() directly in the attribute handlers.
Risk Assessment
This can lead to a kernel crash or potential code execution during sysfs operations on the ati_remote2 device. It requires physical access or privileges to interact with the device.
Recommendation
Update the Linux kernel to a version containing the fix. Avoid unauthorized access to USB devices on systems with this driver.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: Input: ati_remote2 - fix type confusion in device attribute handlers Previously, the channel_mask and mode_mask attributes were registered on the parent usb_device via sysfs_create_group(). When commit b20d6bf8014b ("Input: ati-remote2 - use driver core to instantiate device attributes") converted the driver to let the driver core manage them via dev_groups in struct usb_driver, the attributes moved to the bound usb_interface devices, but the show and store callbacks were not updated accordingly. As a result, the callbacks still invoked to_usb_device() on a device pointer belonging to a struct usb_interface, producing an invalid usb_device pointer. Use to_usb_interface() directly in the attribute handlers to obtain the interface and its driver data.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS