CVE-2012-6548: The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain s...

Security readout for executives and security teams

This is an old Linux kernel information leak. A local user could run a crafted application that may expose data from kernel heap memory through UDF filesystem handling. The sources do not describe remote compromise or active exploitation. Exposure is most likely on legacy Linux systems running kernels before 3.6 or vendor kernels lacking the backported fix, especially shared systems or workloads where untrusted local users can execute code. Treat this as a legacy hygiene issue unless affected systems still allow local user code execution. It should be remediated through normal kernel patching, with higher priority for shared infrastructure. Mitigation focus: Identify Linux systems running kernels before 3.6 or relevant vendor backports.; Apply vendor kernel updates referenced by Ubuntu, Red Hat, SUSE, or Mandriva advisories.; For unsupported legacy systems, migrate to a supported kernel release..

Prepared

Jun 24, 2026, 11:46 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.