---
title: "CVE-2009-3612\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-2009-3612?format=md
keywords: index, follow
---

# CVE-2009-3612

Publication date 19 October 2009

Last updated 4 August 2025

---

Ubuntu priority

**Low**

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

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## Description

The tcf\_fill\_node function in net/sched/cls\_api.c in the netlink subsystem
in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6 and earlier, does
not initialize a certain tcm\_\_pad2 structure member, which might allow
local users to obtain sensitive information from kernel memory via
unspecified vectors. NOTE: this issue exists because of an incomplete fix
for CVE-2005-4881.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| linux | 9.10 karmic | Fixed 2.6.31-16.52 |
| 9.04 jaunty | Fixed 2.6.28-17.58 |
| 8.10 intrepid | Fixed 2.6.27-16.44 |
| 8.04 LTS hardy | Fixed 2.6.24-26.64 |
| 6.06 LTS dapper | Not in release |
| linux-source-2.6.15 | 9.10 karmic | Not in release |
| 9.04 jaunty | Not in release |
| 8.10 intrepid | Not in release |
| 8.04 LTS hardy | Not in release |
| 6.06 LTS dapper | Fixed 2.6.15-55.81 |

---

* [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-2009-3612?format=md#patch-details)

### 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 | * Upstream:   <http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ad61df918c44316940404891d5082c63e79c256a> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3612)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-3612)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-3612)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2009-3612)

### Related Ubuntu Security Notices (USN)

+ [USN-864-1](https://usn.ubuntu.com/USN-864-1)
+ Linux kernel vulnerabilities
+ 5 December 2009

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2009-3612>