What is CVE-2008-4302?

CVE-2008-4302 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Locking flaw (CWE-667). CVE-2008-4302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2008-4302?

CVE-2008-4302 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2008-4302?

No patch is currently available for CVE-2008-4302. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2008-4302 actively exploited?

CVE-2008-4302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2008-4302

Medium

fs/splice.c in the splice subsystem in the Linux kernel before 2.6.22.2 does not properly handle a failure of the add_to_page_cache_lru function, and subsequently attempts to unlock a page that was not locked, which allows local users to cause a denial of service (kernel BUG and system crash), as demonstrated by the fio I/O tool.

Package Linux Kernel

Published 2008-09-29

Last modified 2026-04-23

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-667

CVE-2008-4302 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2008-4302 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel.org
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.2

Broken Link
Lists
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html

Mailing List Third Party Advisory
Lkml
http://lkml.org/lkml/2007/7/20/168

Exploit Mailing List Third Party Advisory
Secunia
http://secunia.com/advisories/32237

Broken Link
Secunia
http://secunia.com/advisories/32485

Broken Link
Secunia
http://secunia.com/advisories/32759

Broken Link
Debian Security
http://www.debian.org/security/2008/dsa-1653

Third Party Advisory
Juniper
http://www.juniper.net/security/auto/vulnerabilities/vuln31201.html

Broken Link
Openwall
http://www.openwall.com/lists/oss-security/2008/09/16/10

Mailing List Third Party Advisory
Red Hat
http://www.redhat.com/support/errata/RHSA-2008-0957.html

Broken Link
Securityfocus
http://www.securityfocus.com/bid/31201

Broken Link Third Party Advisory VDB Entry
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/45191

Third Party Advisory VDB Entry
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10547

Broken Link
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=6a860c979b35469e4d77da781a96bdb2ca05ae64
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=462434
Patch

Details

CVE ID CVE-2008-4302

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2008-09-29

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2008-4302?

CVE-2008-4302 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . CVE-2008-4302 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2008-4302?

CVE-2008-4302 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2008-4302?

No patch is currently available for CVE-2008-4302. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2008-4302 actively exploited?

No — CVE-2008-4302 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →