Public Date:
732878: CVE-2011-3209 kernel: panic occurs when clock_gettime() is called

The MITRE CVE dictionary describes this issue as:

The div_long_long_rem implementation in include/asm-x86/div64.h in the Linux kernel before 2.6.26 on the x86 platform allows local users to cause a denial of service (Divide Error Fault and panic) via a clock_gettime system call.

Find out more about CVE-2011-3209 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4, 6, and Red Hat Enterprise MRG, as they either do not have the sample_to_timespec() function, or have already backported upstream commit f8bd2258, which addresses this issue. It was addressed in Red Hat Enterprise Linux 5 via

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.9
Base Metrics AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux Long Life (v. 5.3 server) (kernel) RHSA-2011:1418 2011-11-01
Red Hat Enterprise Linux version 5 (kernel) RHSA-2011:1386 2011-10-20
Red Hat Enterprise Linux EUS (v. 5.6 server) (kernel) RHSA-2011:1419 2011-11-01

Affected Packages State

Platform Package State
Red Hat Enterprise Linux EUS (v. 5.6 server) kernel Affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux EUS (v. 5.3 server) kernel Affected
Red Hat Enterprise Linux 4 kernel Not affected


Red Hat would like to thank Yasuaki Ishimatsu for reporting this issue.