debugfs security

The debugfs security tag on WindowsForum covers Linux kernel vulnerabilities where the debugfs filesystem exposes sensitive data or enables denial-of-service attacks. Recent discussions include CVE-2026-46291, where the CAAM cryptographic accelerator driver leaked HMAC key bytes through debug hex dumps, and CVE-2026-31546, where the bonding driver's debugfs path allowed a local user to crash the system via a NULL pointer dereference. These threads highlight how debugfs, intended for debugging and observability, can become a security risk when it mishandles secrets or trusts unvalidated pointers. For WindowsForum readers, the relevance lies in understanding that modern IT environments often include Linux components, and such flaws matter even if they don't directly affect Windows desktops.