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Vulnerability record · CVE-2009-2767 · published 14 August 2009

CVE-2009-2767: Linux kernel memory buffer overflow vulnerability

Linux · Kernel

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.

7.2 CVSS 2.0 High EPSS 0.74% · top 47.2% CWE-119 · Memory buffer overflow
7.2CVSS 2.0 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
20References
16 Jun 2026Last modified by NVD

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.

AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70d715fd0597f18528f389b5ac59102263067744
http://lkml.org/lkml/2009/8/4/28 Patch
http://lkml.org/lkml/2009/8/4/40 Patch
http://secunia.com/advisories/36200 Vendor Advisory
http://secunia.com/advisories/37105
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6
http://www.openwall.com/lists/oss-security/2009/08/06/2
http://www.ubuntu.com/usn/USN-852-1
http://www.vupen.com/english/advisories/2009/2197 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/52317
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70d715fd0597f18528f389b5ac59102263067744
http://lkml.org/lkml/2009/8/4/28 Patch
http://lkml.org/lkml/2009/8/4/40 Patch
http://secunia.com/advisories/36200 Vendor Advisory
http://secunia.com/advisories/37105
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6
http://www.openwall.com/lists/oss-security/2009/08/06/2
http://www.ubuntu.com/usn/USN-852-1
http://www.vupen.com/english/advisories/2009/2197 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/52317

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Source: NIST National Vulnerability Database (record CVE-2009-2767), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.