CVE-2016-4470: The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure t...

Security readout for executives and security teams

CVE-2016-4470 is a Linux kernel flaw that can let a local user crash the system. It is not a remote break-in based on the supplied sources, but it can cause outage on shared, multi-user, or exposed shell environments. Exposure is most likely on Linux systems running kernels through 4.6.3 or vendor kernel builds covered by Oracle, SUSE, Ubuntu, and Red Hat advisories. Risk is higher where untrusted local users, hosted tenants, or shell-access users exist. Treat as a maintenance-priority availability risk. It is less urgent than remotely exploitable compromise, but shared Linux systems should be patched promptly because a local user could crash critical hosts. Mitigation focus: Check relevant vendor advisory guidance for fixed kernel packages.; Update affected Linux kernel packages through the supported distribution channel.; Reboot systems into the updated kernel after maintenance approval..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

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