CVE-2026-43203

A flaw was found in the Linux kernel's fore200e ATM (Asynchronous Transfer Mode) network adapter driver. A race condition during the device removal process can lead to a use-after-free vulnerability. This occurs when the fore200e adapter is deallocated while its associated tasklets (small, interrupt-driven functions) are still running or pending, causing the system to access freed memory. This issue can result in system instability or a denial of service.