---
title: "CVE-2011-2693\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-2693?format=md
keywords: index, follow
---

# CVE-2011-2693

Publication date 8 June 2013

Last updated 4 July 2026

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

The perf subsystem in the kernel package 2.6.32-122.el6.x86\_64 in Red Hat
Enterprise Linux (RHEL) 6 does not properly handle NMIs, which might allow
local users to cause a denial of service (excessive log messages) via
unspecified vectors.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-2693?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| linux | 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not affected |
| linux-armadaxp | 13.04 raring | Not in release |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-ec2 | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Not affected |
| linux-fsl-imx51 | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| linux-linaro-omap | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-linaro-shared | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-linaro-vexpress | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Not in release |
| linux-lts-backport-maverick | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| linux-lts-quantal | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-lts-raring | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| linux-mvl-dove | 13.04 raring | Not in release |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Ignored end of life |
| linux-qcm-msm | 13.04 raring | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| linux-ti-omap4 | 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2011-2693?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

RH-specific?

---

### [henrix](https://launchpad.net/~henrix)

this is not RH-specific. Fix has been committed long ago and all the
series already contain the fix (except for Lucid, which isn't affected)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| linux | * Introduced by   [047a377](https://git.kernel.org/linus/047a3772feaae8e43d81d790f3d3f80dae8ae676),   fixed by   [7d44ec1](https://git.kernel.org/linus/7d44ec193d95416d1342cdd86392a1eeb7461186) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2693)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-2693)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-2693)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-2693)

### Other references

* <https://oss.oracle.com/git/?p=redpatch.git;a=commit;h=fadca7bdc43b02f518585d9547019966415cadfd>
* <https://bugzilla.redhat.com/show_bug.cgi?id=688547>
* <https://www.cve.org/CVERecord?id=CVE-2011-2693>