CVE-2025-21820 | Linux Kernel up to 6.1.128/6.6.77/6.12.13/6.13.2 xilinx_uartps cdns_uart_isr deadlock (Nessus ID 231821 / WID-SEC-2025-0461)
A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.1.128/6.6.77/6.12.13/6.13.2. This affects the function cdns_uart_isr of the component xilinx_uartps. The manipulation leads to deadlock.
This vulnerability is uniquely identified as CVE-2025-21820. The attack needs to be initiated within the local network. There is no exploit available.
It is recommended to upgrade the affected component.