CVE-2007-6716: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

fs/direct-io.c in the dio subsystem in the Linux kernel before 2.6.23 does not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test.

Affected products

• Canonical Ubuntu Linux: version 6.06 only; version 7.10 only; version 8.04 only
• Debian Debian Linux: version 4.0 only
• Linux Linux Kernel: before 2.6.23 (fixed in 2.6.23)
• Novell Linux Desktop: version 9 only
• Opensuse Opensuse: version 10.3 only
• Suse Suse Linux Enterprise Desktop: version 10 only
• Suse Suse Linux Enterprise Server: version 10 only

Published 2008-09-04. Last modified 2026-06-16.