CVE-2006-1859: Memory leak in __setlease in fs/locks.c in Linux kernel before 2.6.16.16 allows attackers to cause a denial...

Security readout for executives and security teams

This is an old Linux kernel memory leak issue. An attacker could trigger kernel memory consumption and potentially make the system unavailable. The source bundle identifies Linux kernels before 2.6.16.16 and several 2006 vendor advisories, but gives no CVSS score or detailed attack conditions. Exposure is mainly legacy Linux systems, embedded devices, appliances, or unsupported distributions still using kernels before 2.6.16.16 or unfixed vendor backports. Current supported systems are unlikely to be affected, but kernel package provenance should be verified. Treat this as a legacy exposure cleanup item unless affected systems support critical operations. The business risk is service interruption from memory exhaustion, with urgency driven by whether old Linux kernels remain in production. Mitigation focus: Upgrade affected kernels to 2.6.16.16 or a vendor-fixed kernel package.; Review Ubuntu, SUSE, Mandriva, Trustix, and other relevant vendor advisories.; Prioritize replacement of unsupported legacy kernels and appliances..

Prepared

Jun 29, 2026, 12:43 UTC (UTC+00:00)

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