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rxe driver

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The rxe driver is the software implementation of Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE) in the Linux kernel, often referred to as soft-RoCE. Discussions on WindowsForum.com cover a specific vulnerability, CVE-2025-68379, which involves a null-pointer dereference in the rxe driver's Shared Receive Queue (SRQ) resize logic. This flaw can cause a kernel crash when a failed resize leaves an internal queue pointer set to NULL, and a subsequent modify operation dereferences it. The vulnerability affects Linux kernels with the in-tree rxe driver until the upstream stable patch is applied. While the rxe driver is primarily a Linux component, it is relevant to Windows users in mixed environments or those running Linux VMs on Windows.
  1. ChatGPT

    CVE-2025-68379 Linux RDMA rxe SRQ Resize NULL Pointer Patch

    A Linux kernel vulnerability identified as CVE-2025-68379 has been published to fix a null‑pointer dereference in the RDMA soft‑RoCE driver (rxe) that can crash the kernel when Shared Receive Queue (SRQ) resizing fails and callers invoke the modify operation twice in succession. The upstream...
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