CVE-2007-6712: Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64...

Security readout for executives and security teams

This is an old Linux kernel flaw where a local user could make an affected 64-bit system hang in an infinite timer loop. The impact described is denial of service, not data theft or remote compromise. The source bundle does not show active exploitation or a CVSS score. Exposure is most relevant to 64-bit Linux systems running vulnerable 2.6-era kernels or downstream vendor builds covered by the referenced 2008 advisories. Systems without local untrusted user access have lower practical exposure. Exact affected distro versions are incomplete in the supplied bundle. Treat as a legacy availability risk. It is not described as remote code execution, but affected shared or multi-user Linux systems could be disrupted by a local user. Prioritize remaining unsupported or old 64-bit Linux assets. Mitigation focus: Apply the relevant Linux kernel update from the system vendor.; Reboot into the updated kernel using normal operational change control.; Prioritize systems that allow untrusted local user access..

Prepared

Jun 28, 2026, 19:09 UTC (UTC+00:00)

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