Linux Kernel Vulnerability Affecting Raw Socket Options

CVE-2026-68387

What is CVE-2026-68387?

A vulnerability in the Linux kernel affects the handling of raw socket options. The introduction of a bitfield for storing flags in the raw socket structure necessitated a read-modify-write operation that could be exposed to concurrent access issues. To address this, the update integrates a new function for safely managing these socket options, improving overall stability and security through the implementation of locking mechanisms to prevent data racing conditions.

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