CVE-2009-2767

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-08-14 · updated 2026-06-16
Weakness: CWE-119

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

Linux Kernel: 2.6.24.7, 2.6.25.15
Linux kernel: through 2.6.16.31; 2.6, 2.6.0, 2.6.1, 2.6.10, 2.6.11, 2.6.11.1 (+70)

References

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
http://lkml.org/lkml/2009/8/4/40
http://secunia.com/advisories/36200
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
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

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