CVE-2026-99069 Input: ati_remote2 - fix type confusion in device attribute handlers
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-99069?
CVE-2026-99069 is a vulnerability in Linux, published on 23 Oct 2026.
Official description
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.
Which versions are affected by CVE-2026-99069?
How do I fix CVE-2026-99069?
Upgrade to a fixed version.
Is CVE-2026-99069 being exploited?
There is no known exploitation of CVE-2026-99069 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-99069, DEBIAN-CVE-2026-99069, GHSA-5wgj-7vcp-vw5x, UBUNTU-CVE-2026-99069.