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Fencer Vulns
medium 4.0

CVE-2008-4307 json

Race condition in the do_setlk function in fs/nfs/file.c in the Linux kernel before 2.6.26 allows local users to cause a denial of service…

published 2009-01-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4290

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

Race condition in the do_setlk function in fs/nfs/file.c in the Linux kernel before 2.6.26 allows local users to cause a denial of service (crash) via vectors resulting in an interrupted RPC call that leads to a stray FL_POSIX lock, related to improper handling of a race between fcntl and close in the EINTR case.

Patch / fix

  • kernel RHEL 5 2.6.18-128.1.10.el5
  • kernel-PAE RHEL 5 2.6.18-128.1.10.el5
  • kernel-xen RHEL 5 2.6.18-128.1.10.el5
  • kernel-kdump RHEL 5 2.6.18-128.1.10.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-128.1.10.el5
  • kernel RHEL 4 2.6.9-78.0.22.EL
  • kernel-smp RHEL 4 2.6.9-78.0.22.EL
  • kernel-xenU RHEL 4 2.6.9-78.0.22.EL

red hat advisories RHSA-2009:0473RHSA-2009:0459RHSA-2009:0451

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-2008-4307 updated cvss 4.9

Kernel BUG() in locks_remove_flock

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-111.el5rt, kernel-rt-trace 2.6.24.7-111.el5rt, kernel-rt-vanilla 2.6.24.7-111.el5rt, kernel-rt-debuginfo-common 2.6.24.7-111.el5rt
    fixed: vendor fix RHSA-2009:0451
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-128.1.10.el5, kernel-PAE 2.6.18-128.1.10.el5, kernel-xen 2.6.18-128.1.10.el5, kernel-kdump 2.6.18-128.1.10.el5, kernel-debuginfo-common 2.6.18-128.1.10.el5
    fixed: vendor fix RHSA-2009:0473
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-78.0.22.EL, kernel-smp 2.6.9-78.0.22.EL, kernel-xenU 2.6.9-78.0.22.EL, kernel-hugemem 2.6.9-78.0.22.EL, kernel-largesmp 2.6.9-78.0.22.EL
    fixed: vendor fix RHSA-2009:0459
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-128.1.10.el5, kernel-PAE 2.6.18-128.1.10.el5, kernel-xen 2.6.18-128.1.10.el5, kernel-kdump 2.6.18-128.1.10.el5, kernel-debuginfo-common 2.6.18-128.1.10.el5
    fixed: vendor fix RHSA-2009:0473
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-78.0.22.EL, kernel-smp 2.6.9-78.0.22.EL, kernel-xenU 2.6.9-78.0.22.EL, kernel-hugemem 2.6.9-78.0.22.EL, kernel-largesmp 2.6.9-78.0.22.EL Red Hat Enterprise Linux ES version 4 kernel 2.6.9-78.0.22.EL, kernel-smp 2.6.9-78.0.22.EL, kernel-xenU 2.6.9-78.0.22.EL, kernel-hugemem 2.6.9-78.0.22.EL, kernel-largesmp 2.6.9-78.0.22.EL Red Hat Enterprise Linux WS version 4 kernel 2.6.9-78.0.22.EL, kernel-smp 2.6.9-78.0.22.EL, kernel-xenU 2.6.9-78.0.22.EL, kernel-hugemem 2.6.9-78.0.22.EL, kernel-largesmp 2.6.9-78.0.22.EL
    fixed: vendor fix RHSA-2009:0459

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

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:L/AC:H/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.