kernel: clock_nanosleep() with CLOCK_MONOTONIC_RAW NULL pointer dereference
Published Aug 14, 2009
7.2
HIGHCVSS 2.0
EPSS 0.74%
Description
The init_posix_timers function in kernel/posix-timers.c in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (OOPS) or possibly gain privileges via a CLOCK_MONOTONIC_RAW clock_nanosleep call that triggers a NULL pointer dereference.
Affected products
No data.
- 2.6.24.7
- 2.6.25.15
- ≤ 2.6.16.31
- 2.6
- 2.6.0
- 2.6.1
- 2.6.10
- 2.6.11
- 2.6.11.1
- 2.6.11.2
- 2.6.11.3
- 2.6.11.4
- 2.6.11.5
- 2.6.11.6
- 2.6.11.7
- 2.6.11.8
- 2.6.11.9
- 2.6.11.10
- 2.6.11.11
- 2.6.11.12
- 2.6.12
- 2.6.12.1
- 2.6.12.2
- 2.6.12.3
- 2.6.12.4
- 2.6.12.5
- 2.6.12.6
- 2.6.13
- 2.6.13.1
- 2.6.13.2
- 2.6.13.3
- 2.6.13.4
- 2.6.13.5
- 2.6.14
- 2.6.14.1
- 2.6.14.2
- 2.6.14.3
- 2.6.14.4
- 2.6.14.5
- 2.6.14.6
- 2.6.14.7
- 2.6.15
- 2.6.15.1
- 2.6.15.2
- 2.6.15.3
- 2.6.15.4
- 2.6.15.5
- 2.6.15.6
- 2.6.15.7
- 2.6.16
- 2.6.16.1
- 2.6.16.2
- 2.6.16.3
- 2.6.16.10
- 2.6.16.11
- 2.6.16.12
- 2.6.16.13
- 2.6.16.14
- 2.6.16.15
- 2.6.16.16
- 2.6.16.17
- 2.6.16.18
- 2.6.16.19
- 2.6.16.20
- 2.6.16.21
- 2.6.16.22
- 2.6.16.23
- 2.6.16.24
- 2.6.16.25
- 2.6.16.26
- 2.6.16.27
- 2.6.16.28
- 2.6.16.29
- 2.6.16.30
- 2.6.16.31
- 2.6.16.31
- 2.6.16.31
- 2.6.16.31
- 2.6.16.31
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue only affected kernels version 2.6.28-rc1 and later. Therefore this issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG..
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:C/I:C/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 2, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.74% (0.00742) | 53.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.74% (0.00742) | 49.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.13% (0.00132) | 30.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.73th | v3 (v2023.03.01) |
| May 27, 2024 | 0.04% (0.00044) | 9.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 7.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.22% (0.03220) | 84.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.22% (0.03220) | 82.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.22% (0.03220) | 65.30th | v2 (v2022.01.01) |
References (14)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70d715fd0597f18528f389b5ac59102263067744 x_refsource_CONFIRM
- http://lkml.org/lkml/2009/8/4/28 mailing-listx_refsource_MLISTPatch
- http://lkml.org/lkml/2009/8/4/40 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/36200 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/37105 third-party-advisoryx_refsource_SECUNIA
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2009/08/06/2 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-852-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2009/2197 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-2767 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=515867 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52317 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2009-2767
- https://www.cve.org/CVERecord?id=CVE-2009-2767
Change history (0)
No recorded changes yet.