cve 2025 39742

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CVE-2025-39742 is a Linux kernel vulnerability involving a divide-by-zero condition in the RDMA hfi1 driver. Microsoft has identified Azure Linux as potentially affected and is expanding its CSAF/VEX mappings for any additional Microsoft products that include the upstream component. Discussions on WindowsForum cover the technical details of the fix and the implications for Azure Linux users, emphasizing the importance of patching to prevent system instability.

  1. CVE-2025-39742: Linux RDMA hfi1 Divide-by-Zero Fix and Azure Linux Attestation

    The Linux kernel received a targeted fix for a divide‑by‑zero condition in the RDMA hfi1 driver — tracked as CVE‑2025‑39742 — and Microsoft’s public advisory has confirmed that Azure Linux is a product the company has inventoried and attested as “potentially affected,” while promising to expand...
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    • Forum: Security Alerts