fifo corruption

FIFO corruption refers to a race condition in the Linux kernel's sc16is7xx serial driver, tracked as CVE-2024-44951, where transmit data can be misdirected between channels. This vulnerability affects multi-channel UART chips used in embedded systems, causing packets received on one channel to be transmitted on another, leading to data integrity and availability issues. The bug was introduced by an earlier locking change and later fixed in stable kernel trees. Discussions on WindowsForum.com cover the technical details of this hardware-level flaw, its impact on serial communication, and the kernel patches that resolve the cross-channel data corruption.