DEBIAN-CVE-2022-50625

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: avoid SBSA UART accessing DMACR register Chapter "B Generic UART" in "ARM Server Base System Architecture" 1 documentation describes a generic UART interface. Such generic UART does not support DMA. In current...

kernel: serial: amba-pl011: avoid SBSA UART accessing DMACR register

A flaw was found in the Linux kernel’s AMBA-PL011 serial driver used on ARM Server Base System Architecture platforms. The existing stoprx operation shared between generic SBSA UARTs and AMBA-PL011 UARTs invoked pl011dmarxstop, which attempts to access the DMA Control Register DMACR. SBSA generic...