CVE-2026-43031

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the xilinx axienet driver regarding Byte Queue Limits (BQL) accounting for transmit (TX) packets that span multiple buffer descriptors (BD) using scatter-gather. The axienet free tx chain() function sums the actual length from descriptor status into an accumulator that resets on each NAPI poll. If BDs for a single packet complete across different polls, bytes from earlier polls are lost and not credited to BQL. This leads BQL to incorrectly assume bytes are permanently in-flight, which eventually stalls the TX queue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.