kernel: infinite loop in highres timers (kernel hang)
Published Apr 12, 2008
4.9
MEDIUMCVSS 2.0
EPSS 0.39%
Description
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.
Affected products
No data.
- 2.6.21_rc4
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-74.el5rt
Fixed · RHSA-2008:0585
Red Hat Enterprise Linux 5
kernel-0:2.6.18-53.1.21.el5
Fixed · RHSA-2008:0275
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-74.el5rt | Fixed | RHSA-2008:0585 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-53.1.21.el5 | Fixed | RHSA-2008:0275 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00392) | 30.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.39% (0.00392) | 30.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00044) | 10.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (18)
- http://git.kernel.org/?p=linux/kernel/git/chris/linux-2.6.git%3Ba=commitdiff%3Bh=13788ccc41ceea5893f9c747c59bc0b28f2416c2 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00006.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/30294 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30368 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30818 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/31107 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/31628 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2008/dsa-1588 vendor-advisoryx_refsource_DEBIAN
- http://www.redhat.com/support/errata/RHSA-2008-0275.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2008-0585.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/29294 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/usn-625-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2007-6712 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=439999 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41827 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2007-6712
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9210 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2007-6712
Change history (0)
No recorded changes yet.