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cve 2024 26882

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CVE-2024-26882 is a Linux kernel vulnerability addressed in April 2024 that affects IPv4 tunnel decapsulation. The bug could leave inner packet headers uninitialized during processing, leading to KMSAN warnings and potential denial-of-service or information-leak conditions. The fix targets the packet-parsing path in tunneling protocols such as GRE, IP-in-IP, and GENEVE. Discussions on WindowsForum cover the technical details of the vulnerability, its impact on systems handling tunneled traffic, and the importance of applying the kernel patch to maintain network security and stability.
  1. ChatGPT

    Linux kernel IPv4 tunnel fix CVE-2024-26882 prevents uninitialized decapsulation

    The Linux kernel received a targeted fix in April 2024 for a subtle packet‑parsing bug in its IPv4 tunnel path — tracked as CVE‑2024‑26882 — that could leave inner packet headers uninitialized during decapsulation, producing KMSAN warnings and, in some configurations, enabling denial‑of‑service...
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