Linux Kernel Inode Allocation Leak in Qibfs

CVE-2025-37983

What is CVE-2025-37983?

A memory leak has been identified in the Linux kernel's Qibfs module, where a failure to allocate an inode could lead to a leaked directory entry (dentry). This issue has been present since the initial merge of the feature. Although the likelihood of encountering this allocation failure during extreme out-of-memory conditions is low, it remains a potential security concern for systems operating under resource constraints. Addressing this vulnerability is crucial to maintaining the stability and security of affected Linux environments.

References