CVE-2008-4302

MEDIUM

Linux Kernel < 2.6.22.2 - Denial of Service via Splice Subsystem Page Unlock

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-4302. PoCs published by Jens Axboe.

AI-analyzed exploit summary This exploit is a configuration file for the fio tool designed to trigger a local denial-of-service vulnerability in the Linux kernel prior to version 2.6.22.2 by stressing the I/O subsystem with multiple jobs and high I/O depth.

Description

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.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Jens Axboe · textdoslinux

https://www.exploit-db.com/exploits/32384

View Code ZIP pw:eip

This exploit is a configuration file for the fio tool designed to trigger a local denial-of-service vulnerability in the Linux kernel prior to version 2.6.22.2 by stressing the I/O subsystem with multiple jobs and high I/O depth.

Classification

Working Poc 90%

Attack Type

Dos

Complexity

Moderate

Reliability

Reliable

Target: Linux kernel < 2.6.22.2

Auth required

Prerequisites: Local access to the target system · fio tool installed

MITRE ATT&CK

T1499 - Endpoint Denial of Service

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (15)

Core 15

Core References

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

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

Broken Link x_refsource_confirm

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=6a860c979b35469e4d77da781a96bdb2ca05ae64

Broken Link third-party-advisory x_refsource_secunia

http://secunia.com/advisories/32485

Broken Link third-party-advisory x_refsource_secunia

http://secunia.com/advisories/32237

Broken Link vendor-advisory x_refsource_redhat

http://www.redhat.com/support/errata/RHSA-2008-0957.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_xf

https://exchange.xforce.ibmcloud.com/vulnerabilities/45191

Third Party Advisory vendor-advisory x_refsource_debian

http://www.debian.org/security/2008/dsa-1653

Broken Link vdb-entry signature x_refsource_oval

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10547

Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=462434

Broken Link third-party-advisory x_refsource_secunia

http://secunia.com/advisories/32759

Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://lkml.org/lkml/2007/7/20/168

Broken Link x_refsource_confirm

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

Mailing List, Third Party Advisory vendor-advisory x_refsource_suse

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

Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/31201

Broken Link x_refsource_misc

http://www.juniper.net/security/auto/vulnerabilities/vuln31201.html

Scores

CVSS v3 5.5

EPSS 0.0062

EPSS Percentile 44.8%

Attack Vector LOCAL

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

Details

CWE

CWE-667

Status published

Products (3)

debian/debian_linux 4.0

linux/linux_kernel < 2.6.22.2

redhat/enterprise_linux 5.0

Published Sep 29, 2008

Tracked Since Feb 18, 2026