https://thecodersblog.com/tag/gnu/Recent content in GNU on The Coders BlogHugoen-usFri, 08 May 2026 03:29:07 +0000https://thecodersblog.com/gnu-ifunc-s-role-in-cve-2024-3094-2026/Fri, 08 May 2026 03:29:07 +0000https://thecodersblog.com/gnu-ifunc-s-role-in-cve-2024-3094-2026/<p>The recent XZ Utils backdoor (CVE-2024-3094) sent shockwaves through the Linux ecosystem. While much attention has rightfully focused on the insidious nature of the attack and its supply-chain vector, the underlying mechanism that facilitated its stealthiest payloads has been largely overlooked: <strong>GNU&rsquo;s Indirect Function (IFUNC)</strong>. This feature, buried within <code>glibc</code>, was not merely an incidental detail; it was the very linchpin that enabled the backdoor&rsquo;s most potent functionality – covert function hijacking at runtime.</p>