CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's RDMA/mlx5 component, where improper validation of the user-provided `rq_wqe_shift` can lead to undefined behavior due to integer overflow when the shift value is set to 31 or higher. This flaw could potentially allow an attacker to exploit the system, leading to stability issues or arbitrary code execution. Organizations running Linux systems with RDMA capabilities should prioritize applying the patch to mitigate this risk.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix undefined shift of user RQ WQE size set_rq_size() computes the RQ WQE size as "1 << rq_wqe_shift" based on the user-provided rq_wqe_shift, which is only checked to be greater than 32, so shifts of 32 are still accepted. A shift of 31 also overflows a signed integer, leading to undefined behavior. Use check_shl_overflow() to compute the RQ WQE size and reject any invalid values.