Read the docs
TI-2007-06406 Aliases CVE-2007-6712GHSA-g8gq-4rhw-xpq5

Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4…

Priority LOW 23CWE-189Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.

Summary

Integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel 2.6.21-rc4, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.

Why it matters now

EPSS 0.00392 33rd percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kernel:linux_kernel:2.6.21_rc4:*:x64:*:*:*:*:*2.6.21_rc4Vulnerablekernel
  • cpe:2.3:a:kernel:linux_kernel:2.6.21_rc4:*:x64:*:*:*:*:* Versions 2.6.21_rc4 Vulnerable ·kernel

Remediation

Red Hat 2 advisories

  • RHSA-2008:0585 Released 2008-08-26 · Red Hat rating Important
    kernel security and bug fix update
    • MRG Realtime for RHEL 5 Server kernel-rt-2.6.24.7-74.el5rt, kernel-rt-debug-2.6.24.7-74.el5rt, kernel-rt-debug-devel-2.6.24.7-74.el5rt +6
  • RHSA-2008:0275 Released 2008-05-20 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-53.1.21.el5, kernel-2.6.18-53.1.21.el5.ia64, kernel-PAE-2.6.18-53.1.21.el5 +18
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-53.1.21.el5, kernel-PAE-2.6.18-53.1.21.el5, kernel-PAE-devel-2.6.18-53.1.21.el5 +8

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
MRG Realtime for RHEL 5 ServerFixed RHSA-2008:0585
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0275
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0275

Timeline

  1. 2026-10-02 Threatist record created from CVE-2007-6712
  2. 2026-10-03 Alias added: GHSA-g8gq-4rhw-xpq5

References

Advisory 5

Other 2

  • TI-2009-03131 The sg_build_indirect function in drivers/scsi/sg.c in Linux kernel 2.6.28-rc1 through… CVSS 2.0MEDIUM 4.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences