CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the RDMA (Remote Direct Memory Access) subsystem, specifically related to the erdma command handling, which can lead to resource leaks during the destruction of queue pairs, completion queues, memory regions, and address handles. This can result in unintentional retention of memory and identifiers, potentially leading to resource exhaustion and denial of service. Organizations utilizing Linux systems with RDMA capabilities should prioritize addressing this issue to ensure system stability and resource management.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: complete object teardown when the destroy command fails erdma_destroy_qp(), erdma_destroy_cq(), erdma_dereg_mr(), and erdma_destroy_ah() returned early when erdma_post_cmd_wait() failed, leaking the queue buffers, MTTs, doorbells and the STAG, QPN, CQN and AHN identifiers. A command timeout clears ERDMA_CMDQ_STATE_OK_BIT and permanently disables the command queue, so no retry can succeed; the RDMA core keeps the object after a failed destructor and forced uverbs cleanup then nulls the pointers, making the resources unreachable. Warn on failure but release every software-owned resource and return success, since during terminal destruction the hardware command result is only diagnostic.