Mutex Mismanagement in Linux Kernel Affecting Generic DT Based Systems

CVE-2025-68320

What is CVE-2025-68320?

A vulnerability has been identified in the Linux kernel related to incorrect usage of mutexes in atomic contexts, causing warnings during SSH connections to devices. This flaw results in critical warnings being issued when the 'dropbear' command interacts with system resources. The stack trace indicates the failure occurs when attempting to acquire a mutex lock in an inappropriate context, suggesting that a spinlock should be used instead of a mutex. This vulnerability could potentially lead to performance issues and should be addressed to maintain stable system operations.

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