What’s Vulnerable › Vulnerabilities

CVE-2007-6716

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2008-09-04 · updated 2026-06-16

Description

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: 6.06, 7.10, 8.04
• Debian Linux: 4.0
• Linux kernel: before 2.6.23 — fixed in 2.6.23
• Novell Linux Desktop: 9
• Opensuse: 10.3
• Suse Linux Enterprise Desktop: 10-sp2
• SUSE Linux Enterprise: 10-sp1, 10-sp2

How to fix

Upgrade to a fixed version: Linux kernel 2.6.23. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=848c4dd5153c7a0de55470ce99a8e13a63b4703f
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00000.html
• http://lkml.org/lkml/2007/7/30/448
• http://rhn.redhat.com/errata/RHSA-2008-0972.html
• http://secunia.com/advisories/32023
• http://secunia.com/advisories/32103
• http://secunia.com/advisories/32237
• http://secunia.com/advisories/32356

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