CVE-2025-39964: Linux Kernel Race Condition Vulnerability

The Linux Kernel has a race condition vulnerability (a bug where concurrent, simultaneous operations interfere with each other) in AF_ALG sockets (a Linux interface for cryptographic operations) that causes data to be mixed up unpredictably when multiple writes happen at the same time, corrupting the socket's internal state. This vulnerability is currently being actively exploited by attackers. The source text does not provide specific technical steps to fix the issue, only that organizations must follow vendor instructions and comply with CISA's BOD 26-04 guidance on security patching, with a deadline of September 21, 2026.