Buffer Over-read Vulnerability in Linux Kernel Affecting Packet Processing

CVE-2026-45843

What is CVE-2026-45843?

A vulnerability in the Linux kernel allows for a buffer over-read during packet processing. Specifically, the functions slip and slhc_uncompress can read beyond the end of a compressed TCP packet, which may lead to exposing sensitive data or crashing applications. To address this issue, bounds checks have been implemented to ensure that the reading of packet data does not exceed the intended limits. This vulnerability may allow unauthenticated attackers to exploit this weakness, highlighting the importance of updating to the latest kernel version.

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