RDMA/rtrs Vulnerability in Linux Kernel Affects Connectivity Features

CVE-2025-21805

Summary

A vulnerability within the Linux kernel's RDMA/rtrs component has been identified, wherein a missing deinitialization call can lead to list_add corruption. This manifests during cycles of connecting and disconnecting, causing warnings related to list pointer integrity. The underlying issue arises from the failure to appropriately invoke the newly introduced .deinit element to unregister event handlers, resulting in instability and possible data integrity issues. This vulnerability emphasizes the importance of robust event management in memory handling within kernel operations.

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