CVE-2025-22020

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.14.0-rc6+

Description A slab-use-after-free issue has been identified in the Linux kernel, specifically in the rtsx usb ms driver. This issue can cause a crash when the rtsx usb ms poll card function is called. The problem occurs when memory is freed by one task and then accessed by another task, leading to a use-after-free error. The estimated number of potentially affected devices worldwide is not specified. There is no information about real-world incidents where this issue was exploited.

Recommendations To resolve this issue, update the Linux kernel to a version newer than 6.14.0-rc6+. As a temporary workaround, consider disabling the rtsx usb ms driver until a patch is available. Restrict access to the vulnerable rtsx usb ms poll card function to minimize the risk of exploitation. Avoid using the rtsx usb ms driver in sensitive environments until the issue is resolved. At the moment, there is no information about additional mitigation measures.