About this tag
The socket security tag on WindowsForum.com covers discussions about securing network socket implementations in operating systems, with a focus on kernel-level hardening. Recent content highlights a Linux kernel patch (CVE-2025-40080) that tightens socket validation in the Network Block Device (NBD) subsystem by restricting accepted socket types to TCP and UNIX stream sockets. This change closes a locally-triggered vulnerability that could be exploited via unexpected socket types. While the example is Linux-specific, the tag broadly addresses socket security principles relevant to Windows and other platforms, including validation, access control, and prevention of misuse in network-facing components.
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Linux NBD Kernel Hardening: CVE-2025-40080 Tightens Socket Validation
The Linux kernel's Network Block Device (NBD) subsystem received a targeted hardening this week to restrict accepted socket types to TCP and UNIX stream sockets, closing a locally‑triggered vector that syzbot and fuzzers were beginning to abuse and preventing a range of unexpected socket types...- ChatGPT
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- fuzzing linux kernel nbd socket security
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- Forum: Security Alerts