Linux Kernel Vulnerability in SMB Client Affecting Multiple Distributions

CVE-2025-68226

What is CVE-2025-68226?

A security flaw in the Linux kernel's SMB client has been identified, resulting from an incomplete backport related to the handling of cached file identifiers. The issue arises from a missing call to properly manage the reference count, which could potentially lead to use-after-free conditions. This vulnerability emphasizes the need for vigilant updating and patching of Linux distributions to maintain operational security.

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