CVE-2024-47744

CVE-2024-47744 describes a potential deadlock vulnerability in the Linux kernel's KVM (Kernel-based Virtual Machine) component, specifically affecting x86 architectures. The issue arises from a complex chain of locks and SRCU synchronizations, where multiple CPUs can become deadlocked while attempting to acquire various mutexes. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low attack complexity, and its primary impact is a high availability loss (denial of service). While the vulnerability is considered rare to trigger due to specific dependency and timing requirements, a dedicated mutex has been implemented to protect kvm_usage_count to mitigate this specific deadlock. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.