CVE-2025-39812

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw was discovered in the Linux kernel related to the initialization of fields within the sctp v6 from sk() function in the SCTP (Stream Control Transmission Protocol) implementation. Specifically, the sin6 scope id field was not properly initialized, leading to undefined behavior. This issue was identified by syzbot, a fuzzing tool, and manifested as a KMSAN (Kernel Memory Safety Analyzer) error during address comparison within the sctp v6 cmp addr function. The vulnerability was observed during operations related to socket listening, potentially impacting network communication.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.