CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's CAKE (Common Applications Kept Enhanced) queuing discipline, where signed overhead values can lead to integer wraparound due to the use of unsigned arithmetic in packet length calculations. This can result in incorrect rate accounting, potentially allowing for denial-of-service conditions or unexpected traffic behavior. System administrators and developers using affected Linux kernel versions should prioritize this issue to ensure network performance and reliability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: cake: reject overhead values that underflow length CAKE accepts signed overhead values and stores them in an s16, but the adjusted packet length calculation uses unsigned arithmetic. A negative effective length can therefore wrap to a large value. Such configurations make rate accounting depend on integer wraparound rather than on the packet size userspace intended to model. A static netlink lower bound is not enough because packets reaching CAKE can be smaller than any reasonable manual-overhead allowance. Fold the signed overhead adjustment into the existing datapath MPU clamp so negative adjusted lengths are clamped before link-layer framing adjustments.