struct iw_point

About this tag
The tag struct iw_point covers discussions about the Linux kernel's wireless extensions (WEXT) structure used for passing wireless configuration data between kernel and userspace. Recent content focuses on CVE-2026-22978, a kernel information disclosure vulnerability in the iw_point structure. The patch ensures the struct is zero-initialized before being returned to userspace, closing a 32-bit hole on 64-bit architectures that could leak kernel memory. This tag is relevant for Linux kernel developers, security researchers, and system administrators interested in wireless subsystem security and memory safety fixes.

  1. CVE-2026-22978 Linux Kernel Patch Fixes Wireless Info Leak in iw_point

    The Linux kernel patch addressing CVE-2026-22978 fixes a subtle but meaningful kernel information‑disclosure bug in the wireless (WEXT) code by ensuring the legacy user-facing structure struct iw_point is zero‑initialized before it’s returned to userspace, closing a 32‑bit “hole” on 64‑bit...
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    • information disclosure linux kernel struct iw_point wireless security
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    • Forum: Security Alerts