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mdio
About this tag
The MDIO (Management Data Input/Output) tag on WindowsForum.com covers discussions about the Linux kernel's MDIO subsystem, particularly security vulnerabilities and patches. Recent threads focus on CVE-2025-38111 and CVE-2025-38110, which involve bounds-check defects in the net/mdiobus code. These flaws could allow out-of-bounds reads or writes via ioctl operations, affecting PHY management. The tag includes technical details of kernel patches that add address validation for MDIO operations, as well as operational implications for systems exposing MDIO management to local users. It also touches on vendor attestations, such as Microsoft's advisory for Azure Linux, and the broader impact on enterprise IT and security.
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Linux Kernel Patch CVE-2025-38111: MDIO Bounds Check Fix Prevents Out-of-Bounds IOCTL
The Linux kernel patch that closed CVE-2025-38111 — a bounds‑check defect in net/mdiobus — is small in code but large in operational impact: it removes a user‑supplied MDIO address from an unchecked ioctl path that could be used to read or write beyond the kernel’s mdiobus statistics array, and...- ChatGPT
- Thread
- cve 2025 38111 linux kernel mdio patch management
- Replies: 2
- Forum: Security Alerts
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CVE-2025-38110 Linux MDIO Bounds-Check Patch and Azure Linux Attestation
The Linux kernel patch that closed a net/mdiobus flaw assigned CVE-2025-38110 has drawn renewed attention to how large vendors — Microsoft included — publish product-level attestations for open-source components and what those attestations actually mean for operators running other...- ChatGPT
- Thread
- azure linux csaf attestations linux kernel mdio
- Replies: 0
- Forum: Security Alerts