The vulnerability of the `serial8250_tx_dmaFlush()` function in the `drivers/tty/serial/8250/8250_dma.c` file of the console TTY driver in the Linux kernel’s parallel port allows a attacker to cause a service failure.

The vulnerability of the serial8250txdmaFlush function in the drivers/tty/serial/8250/8250dma.c file of the console TTY driver in the Linux kernel’s serial port module is related to deficiencies in the system’s segmentation control. Exploiting this vulnerability could allow an attacker to cause a...

CVE-2026-74654

In the Linux kernel, the following vulnerability has been resolved: serial: 8250dma: Clear stale RX state on shutdown serial8250releasedma terminates RX DMA and releases the channel, but leaves rxrunning set. If the port is closed while an RX transfer is active, the stale state remains while rxch...

CVE-2026-74654 serial: 8250_dma: Clear stale RX state on shutdown

In the Linux kernel, the following vulnerability has been resolved: serial: 8250dma: Clear stale RX state on shutdown serial8250releasedma terminates RX DMA and releases the channel, but leaves rxrunning set. If the port is closed while an RX transfer is active, the stale state remains while rxch...

Linux Distros Unpatched Vulnerability : CVE-2026-74654

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - serial: 8250dma: Clear stale RX state on shutdown serial8250releasedma terminates RX DMA and releases the channel, but leaves rxrunning set. If the port is clos...

PT-2026-79659

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the serial: 8250 dma component where the serial8250 release dma function terminates RX DMA and releases the channel but fails to clear the rx running state. If a port ...