CVE-2026-43061

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A TX deadlock occurs when using DMA in the 8250 serial driver. The dmaengine terminate async function does not guarantee the execution of the dma tx complete callback, which is the only mechanism used to clear the dma->tx running variable. If a transaction is canceled and the callback fails to run, dma->tx running remains set, preventing the scheduling of new TX DMA transactions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.