CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's RDMA/core component, specifically in the handling of aging pools with pinned handles, which could lead to memory key leaks during error conditions. The impact includes potential resource exhaustion and instability in RDMA operations, making it critical for organizations using Linux systems with RDMA capabilities to prioritize this fix. System administrators and security teams should address this vulnerability to mitigate risks associated with memory management failures.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix FRMR aging push to queue error flow Aging pools with pinned handles requires moving handles from the active queue to a non-empty inactive queue that might fail on new page allocation, we are currently not handling the fault and leaking any mkey that fails the push. Fix by Introducing push_queue_to_queue_locked() that fills the destination's partial tail page from the source and then splices the remaining source pages onto the destination, performing no allocation. Replace the per-handle move loop in age_pinned_pool() and the open-coded splice in pool_aging_work() with calls to the helper. As the helper cannot fail under memory pressure, removing a class of GFP_ATOMIC allocations under the pool lock and simplifying the error flow.