CVE-2026-43061

A flaw was found in the Linux kernel's 8250 serial driver when utilizing Direct Memory Access DMA. An issue arises when a DMA transaction is terminated asynchronously, as the system may not properly clear the dma-txrunning flag. This prevents subsequent transmit TX DMA transactions from being...

CVE-2026-43061

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix TX deadlock when using DMA dmaengineterminateasync does not guarantee that the dmatxcomplete callback will run. The callback is currently the only place where dma-txrunning gets cleared. If the transaction is...

CVE-2026-43061 serial: 8250: Fix TX deadlock when using DMA

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix TX deadlock when using DMA dmaengineterminateasync does not guarantee that the dmatxcomplete callback will run. The callback is currently the only place where dma-txrunning gets cleared. If the transaction is...

CVE-2026-43061

CVE-2026-43061 (Linux kernel): The serial8250 TX DMA deadlock was fixed. The root cause was that dmaengine_terminate_async did not guarantee the __dma_tx_complete callback would run, and that callback is the only place where dma->tx_running is cleared. If a TX DMA transaction is canceled and t...