CVE-2026-43031
Description
A flaw was found in the Linux kernel's xilinx axienet network driver. This vulnerability arises from incorrect accounting of Buffer Queue Length (BQL), a mechanism that manages network buffer usage, for transmit (TX) packets that are split across multiple buffer descriptors. If these packet segments complete across different processing cycles, the system miscalculates the transmitted data. This error can cause the TX queue to stall, leading to a Denial of Service (DoS) for network communications.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
An adversary that can cause a resource counter to become inaccurate may be able to create situations where resources are not accounted for and not released, thus causing resources to become scarce for future needs.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
An adversary that can cause a resource counter to become inaccurate may be able to force an error that causes the product to crash or exit out of its current operation.
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