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risc v security
About this tag
The RISC-V security tag on WindowsForum covers discussions about vulnerabilities and security issues specific to the RISC-V architecture. Recent content includes analysis of CVE-2025-38261, a Linux kernel bug affecting the RISC-V supervisor user-memory access flag (SR_SUM) during context switches. Microsoft's Azure Linux distribution is attested to include the affected code, with updates to the attestation if other Microsoft products are found to be impacted. The tag focuses on RISC-V security topics such as kernel bugs, architecture-specific vulnerabilities, and enterprise remediation steps, particularly in the context of Microsoft's Azure Linux and related attestations.
The Linux kernel bug tracked as CVE-2025-38261 is a narrow but important RISC‑V architecture issue that showed up during heavy stress testing: the kernel could fail to save and restore the RISC‑V supervisor user‑memory access flag (SR_SUM) across context switches. Microsoft’s public CVE entry...