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Fencer Vulns
medium 5.5

CVE-2008-4302 json

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 fun…

published 2008-09-29 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4285

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • linux linux_kernel 2.6.22.2
  • kernel RHEL 5 2.6.18-92.1.18.el5
  • kernel-PAE RHEL 5 2.6.18-92.1.18.el5
  • kernel-xen RHEL 5 2.6.18-92.1.18.el5
  • kernel-kdump RHEL 5 2.6.18-92.1.18.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-92.1.18.el5

red hat advisories RHSA-2008:0957

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-4302 updated

kernel: splice: fix bad unlock_page() in error case

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-92.1.18.el5, kernel-PAE 2.6.18-92.1.18.el5, kernel-xen 2.6.18-92.1.18.el5, kernel-kdump 2.6.18-92.1.18.el5, kernel-debuginfo-common 2.6.18-92.1.18.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-92.1.18.el5, kernel-PAE 2.6.18-92.1.18.el5, kernel-xen 2.6.18-92.1.18.el5, kernel-kdump 2.6.18-92.1.18.el5, kernel-debuginfo-common 2.6.18-92.1.18.el5
    fixed: vendor fix RHSA-2008:0957

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-32384)
  2. Published

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-32384 Linux Kernel 2.6.x - 'add_to_page_cache_lru()' Local Denial of Service dos, 2007-07-20
  • lkml.org http://lkml.org/lkml/2007/7/20/168 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.