CVE-2006-5158: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.7% chance of exploitation in the next 30 days.

The nlmclnt_mark_reclaim in clntlock.c in NFS lockd in Linux kernel before 2.6.16 allows remote attackers to cause a denial of service (process crash) and deny access to NFS exports via unspecified vectors that trigger a kernel oops (null dereference) and a deadlock.

Affected products

• Canonical Ubuntu Linux: version 5.10 only; version 6.06 only; version 6.10 only
• Linux Linux Kernel: before 2.6.16 (fixed in 2.6.16)
• Red Hat Enterprise Linux Desktop: version 4.0 only
• Red Hat Enterprise Linux Eus: version 4.5 only
• Red Hat Enterprise Linux Server: version 4.0 only
• Red Hat Enterprise Linux Workstation: version 4.0 only

Published 2006-10-05. Last modified 2026-06-16.