CVE-2012-3511: Multiple race conditions in the madvise_remove function in mm/madvise.c in the Linux kernel before 3.4.5 al...

Security readout for executives and security teams

CVE-2012-3511 is a Linux kernel flaw that can let a local user crash a vulnerable system. It is not described as remote code execution, and the provided sources do not show active exploitation. Business urgency is highest for shared Linux systems, hosting environments, appliances, or servers where untrusted users can run local code. Exposure is limited to Linux systems running vulnerable pre-3.4.5 kernels or vendor kernels without the backported fix. Risk increases where local shell, container, hosting, batch job, or multi-user access exists. Internet-facing services are only indirectly exposed if attackers can first gain local code execution. Treat this as a patching and resilience issue for older Linux systems, especially shared infrastructure. It is not a KEV-listed emergency based on the provided evidence, but vulnerable multi-user systems can suffer outages from local misuse. Mitigation focus: Update to Linux kernel 3.4.5 or a vendor kernel containing the backported fix.; Review Ubuntu and other vendor advisories for distribution-specific fixed package versions.; Limit untrusted local user access on systems that cannot be patched immediately..

Prepared

Jun 27, 2026, 16:25 UTC (UTC+00:00)

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