CVE-2026-43250
Description
A flaw was found in the Linux kernel's ChipIdea USB Device Controller (UDC) driver. A local user with a malicious USB device, or a malicious USB device itself, could exploit this by reconnecting the device during an active data transfer. This improper cleanup of Direct Memory Access (DMA) buffers can lead to the reuse of stale DMA states. Consequently, this can result in memory corruption, potentially causing system instability, crashes, or even arbitrary code execution.
Understanding the Weakness (CWE)
Other,Confidentiality,Integrity
Technical Impact: Other; Read Application Data; Modify Application Data; DoS: Resource Consumption (Other)
It is possible to overflow the number of temporary files because directories typically have limits on the number of files allowed. This could create a denial of service problem.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
